./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-vector-add.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 80b1b132 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-vector-add.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-?-80b1b13-m [2024-01-31 17:13:11,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 17:13:11,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 17:13:11,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 17:13:11,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 17:13:11,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 17:13:11,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 17:13:11,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 17:13:11,196 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 17:13:11,197 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 17:13:11,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 17:13:11,197 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 17:13:11,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 17:13:11,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 17:13:11,198 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 17:13:11,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 17:13:11,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 17:13:11,199 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 17:13:11,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 17:13:11,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 17:13:11,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 17:13:11,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 17:13:11,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 17:13:11,204 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 17:13:11,204 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 17:13:11,205 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 17:13:11,205 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 17:13:11,205 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 17:13:11,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 17:13:11,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 17:13:11,206 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 17:13:11,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 17:13:11,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:13:11,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 17:13:11,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 17:13:11,207 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 17:13:11,207 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 17:13:11,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 17:13:11,208 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 17:13:11,208 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 17:13:11,208 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 17:13:11,208 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 17:13:11,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 17:13:11,209 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 17:13:11,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 17:13:11,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 17:13:11,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 17:13:11,411 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 17:13:11,412 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 17:13:11,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2024-01-31 17:13:12,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 17:13:12,685 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 17:13:12,686 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2024-01-31 17:13:12,695 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3462ca6/ebdcea8b9b084365a8accc4ee947c4ff/FLAG57f73c1e9 [2024-01-31 17:13:12,708 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3462ca6/ebdcea8b9b084365a8accc4ee947c4ff [2024-01-31 17:13:12,711 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 17:13:12,712 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 17:13:12,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-vector-add.wvr.yml/witness.yml [2024-01-31 17:13:12,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 17:13:12,833 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 17:13:12,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 17:13:12,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 17:13:12,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 17:13:12,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:13:12" (1/2) ... [2024-01-31 17:13:12,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d23aa48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:13:12, skipping insertion in model container [2024-01-31 17:13:12,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:13:12" (1/2) ... [2024-01-31 17:13:12,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6df8ed4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:13:12, skipping insertion in model container [2024-01-31 17:13:12,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:13:12" (2/2) ... [2024-01-31 17:13:12,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d23aa48 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:12, skipping insertion in model container [2024-01-31 17:13:12,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:13:12" (2/2) ... [2024-01-31 17:13:12,844 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 17:13:12,877 INFO L93 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-01-31 17:13:12,894 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 17:13:13,075 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-01-31 17:13:13,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:13:13,097 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 17:13:13,114 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-01-31 17:13:13,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:13:13,127 INFO L208 MainTranslator]: Completed translation [2024-01-31 17:13:13,127 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13 WrapperNode [2024-01-31 17:13:13,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 17:13:13,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 17:13:13,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 17:13:13,128 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 17:13:13,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,160 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 203 [2024-01-31 17:13:13,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 17:13:13,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 17:13:13,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 17:13:13,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 17:13:13,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,209 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 2, 15, 2, 2]. 65 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 10 writes are split as follows [0, 1, 7, 1, 1]. [2024-01-31 17:13:13,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 17:13:13,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 17:13:13,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 17:13:13,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 17:13:13,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (1/1) ... [2024-01-31 17:13:13,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:13:13,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:13:13,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-31 17:13:13,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-31 17:13:13,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 17:13:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 17:13:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 17:13:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 17:13:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 17:13:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 17:13:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-31 17:13:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 17:13:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 17:13:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 17:13:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-31 17:13:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-31 17:13:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 17:13:13,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 17:13:13,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 17:13:13,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 17:13:13,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-31 17:13:13,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-31 17:13:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 17:13:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 17:13:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 17:13:13,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 17:13:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-31 17:13:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-31 17:13:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 17:13:13,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 17:13:13,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 17:13:13,336 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 17:13:13,440 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 17:13:13,442 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 17:13:13,768 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 17:13:13,768 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 17:13:14,032 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 17:13:14,033 INFO L320 CfgBuilder]: Removed 7 assume(true) statements. [2024-01-31 17:13:14,034 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:13:14 BoogieIcfgContainer [2024-01-31 17:13:14,034 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 17:13:14,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 17:13:14,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 17:13:14,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 17:13:14,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 05:13:12" (1/4) ... [2024-01-31 17:13:14,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f7aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:13:14, skipping insertion in model container [2024-01-31 17:13:14,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:13:12" (2/4) ... [2024-01-31 17:13:14,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f7aac and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:13:14, skipping insertion in model container [2024-01-31 17:13:14,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:13:13" (3/4) ... [2024-01-31 17:13:14,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f7aac and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:13:14, skipping insertion in model container [2024-01-31 17:13:14,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:13:14" (4/4) ... [2024-01-31 17:13:14,043 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2024-01-31 17:13:14,058 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 17:13:14,058 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-31 17:13:14,058 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 17:13:14,095 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-31 17:13:14,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 35 transitions, 91 flow [2024-01-31 17:13:14,158 INFO L124 PetriNetUnfolderBase]: 7/32 cut-off events. [2024-01-31 17:13:14,159 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 17:13:14,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 32 events. 7/32 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-01-31 17:13:14,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 35 transitions, 91 flow [2024-01-31 17:13:14,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 31 transitions, 80 flow [2024-01-31 17:13:14,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 17:13:14,181 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;@43d8feb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 17:13:14,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-01-31 17:13:14,195 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 17:13:14,195 INFO L124 PetriNetUnfolderBase]: 7/30 cut-off events. [2024-01-31 17:13:14,195 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 17:13:14,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:13:14,196 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 17:13:14,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:13:14,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:13:14,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1834515043, now seen corresponding path program 1 times [2024-01-31 17:13:14,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:13:14,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812299144] [2024-01-31 17:13:14,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:14,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:13:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:13:14,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:13:14,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812299144] [2024-01-31 17:13:14,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812299144] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:13:14,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:13:14,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 17:13:14,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193407677] [2024-01-31 17:13:14,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:13:14,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 17:13:14,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:13:14,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 17:13:14,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 17:13:14,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 35 [2024-01-31 17:13:14,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:14,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:13:14,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 35 [2024-01-31 17:13:14,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:13:15,033 INFO L124 PetriNetUnfolderBase]: 447/668 cut-off events. [2024-01-31 17:13:15,033 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-01-31 17:13:15,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 668 events. 447/668 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1883 event pairs, 276 based on Foata normal form. 1/497 useless extension candidates. Maximal degree in co-relation 534. Up to 334 conditions per place. [2024-01-31 17:13:15,041 INFO L140 encePairwiseOnDemand]: 25/35 looper letters, 26 selfloop transitions, 8 changer transitions 27/62 dead transitions. [2024-01-31 17:13:15,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 62 transitions, 282 flow [2024-01-31 17:13:15,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 17:13:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 17:13:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2024-01-31 17:13:15,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2024-01-31 17:13:15,053 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 80 flow. Second operand 5 states and 85 transitions. [2024-01-31 17:13:15,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 62 transitions, 282 flow [2024-01-31 17:13:15,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 62 transitions, 258 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-31 17:13:15,061 INFO L231 Difference]: Finished difference. Result has 35 places, 35 transitions, 120 flow [2024-01-31 17:13:15,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=35, PETRI_TRANSITIONS=35} [2024-01-31 17:13:15,065 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2024-01-31 17:13:15,066 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 35 transitions, 120 flow [2024-01-31 17:13:15,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:15,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:13:15,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:13:15,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 17:13:15,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:13:15,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:13:15,067 INFO L85 PathProgramCache]: Analyzing trace with hash 731932584, now seen corresponding path program 1 times [2024-01-31 17:13:15,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:13:15,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136116360] [2024-01-31 17:13:15,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:15,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:13:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:13:15,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:13:15,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136116360] [2024-01-31 17:13:15,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136116360] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:13:15,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364490162] [2024-01-31 17:13:15,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:15,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:15,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:13:15,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:13:15,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-01-31 17:13:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:15,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-31 17:13:15,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:13:15,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:13:15,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:13:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:13:15,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364490162] provided 1 perfect and 1 imperfect interpolant sequences [2024-01-31 17:13:15,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-01-31 17:13:15,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2024-01-31 17:13:15,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474413289] [2024-01-31 17:13:15,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:13:15,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 17:13:15,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:13:15,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 17:13:15,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-01-31 17:13:15,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 35 [2024-01-31 17:13:15,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:15,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:13:15,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 35 [2024-01-31 17:13:15,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:13:15,664 INFO L124 PetriNetUnfolderBase]: 283/423 cut-off events. [2024-01-31 17:13:15,664 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-31 17:13:15,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 890 conditions, 423 events. 283/423 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1110 event pairs, 138 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 880. Up to 336 conditions per place. [2024-01-31 17:13:15,667 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 42 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2024-01-31 17:13:15,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 238 flow [2024-01-31 17:13:15,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 17:13:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 17:13:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2024-01-31 17:13:15,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3657142857142857 [2024-01-31 17:13:15,668 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 120 flow. Second operand 5 states and 64 transitions. [2024-01-31 17:13:15,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 238 flow [2024-01-31 17:13:15,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 47 transitions, 220 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-01-31 17:13:15,670 INFO L231 Difference]: Finished difference. Result has 35 places, 36 transitions, 118 flow [2024-01-31 17:13:15,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=118, PETRI_PLACES=35, PETRI_TRANSITIONS=36} [2024-01-31 17:13:15,671 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2024-01-31 17:13:15,671 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 36 transitions, 118 flow [2024-01-31 17:13:15,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:15,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:13:15,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:13:15,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-01-31 17:13:15,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:15,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:13:15,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:13:15,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1001289756, now seen corresponding path program 1 times [2024-01-31 17:13:15,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:13:15,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163071648] [2024-01-31 17:13:15,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:15,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:13:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:13:16,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:13:16,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163071648] [2024-01-31 17:13:16,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163071648] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:13:16,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916367596] [2024-01-31 17:13:16,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:16,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:16,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:13:16,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:13:16,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-31 17:13:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:16,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjunts are in the unsatisfiable core [2024-01-31 17:13:16,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:13:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:13:16,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:13:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:13:16,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916367596] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:13:16,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:13:16,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-01-31 17:13:16,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433052142] [2024-01-31 17:13:16,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:13:16,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-01-31 17:13:16,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:13:16,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-01-31 17:13:16,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-01-31 17:13:16,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 35 [2024-01-31 17:13:16,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 36 transitions, 118 flow. Second operand has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:16,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:13:16,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 35 [2024-01-31 17:13:16,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:13:16,648 INFO L124 PetriNetUnfolderBase]: 481/718 cut-off events. [2024-01-31 17:13:16,648 INFO L125 PetriNetUnfolderBase]: For 228/228 co-relation queries the response was YES. [2024-01-31 17:13:16,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1699 conditions, 718 events. 481/718 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2297 event pairs, 183 based on Foata normal form. 0/540 useless extension candidates. Maximal degree in co-relation 1653. Up to 410 conditions per place. [2024-01-31 17:13:16,651 INFO L140 encePairwiseOnDemand]: 26/35 looper letters, 67 selfloop transitions, 8 changer transitions 0/76 dead transitions. [2024-01-31 17:13:16,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 76 transitions, 386 flow [2024-01-31 17:13:16,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 17:13:16,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 17:13:16,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 101 transitions. [2024-01-31 17:13:16,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3607142857142857 [2024-01-31 17:13:16,653 INFO L175 Difference]: Start difference. First operand has 35 places, 36 transitions, 118 flow. Second operand 8 states and 101 transitions. [2024-01-31 17:13:16,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 76 transitions, 386 flow [2024-01-31 17:13:16,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 76 transitions, 366 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-01-31 17:13:16,656 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 152 flow [2024-01-31 17:13:16,656 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=152, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2024-01-31 17:13:16,657 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2024-01-31 17:13:16,657 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 152 flow [2024-01-31 17:13:16,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:16,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:13:16,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:13:16,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-31 17:13:16,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-01-31 17:13:16,869 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:13:16,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:13:16,870 INFO L85 PathProgramCache]: Analyzing trace with hash -294290082, now seen corresponding path program 2 times [2024-01-31 17:13:16,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:13:16,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956166472] [2024-01-31 17:13:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:16,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:13:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:17,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:13:17,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:13:17,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956166472] [2024-01-31 17:13:17,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956166472] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:13:17,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787087504] [2024-01-31 17:13:17,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-31 17:13:17,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:17,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:13:17,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:13:17,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-31 17:13:17,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-31 17:13:17,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:13:17,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 5 conjunts are in the unsatisfiable core [2024-01-31 17:13:17,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:13:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-31 17:13:17,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-31 17:13:17,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787087504] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:13:17,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-31 17:13:17,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-01-31 17:13:17,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118850409] [2024-01-31 17:13:17,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:13:17,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 17:13:17,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:13:17,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 17:13:17,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-01-31 17:13:17,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 35 [2024-01-31 17:13:17,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:17,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:13:17,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 35 [2024-01-31 17:13:17,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:13:17,379 INFO L124 PetriNetUnfolderBase]: 757/1131 cut-off events. [2024-01-31 17:13:17,380 INFO L125 PetriNetUnfolderBase]: For 671/671 co-relation queries the response was YES. [2024-01-31 17:13:17,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3263 conditions, 1131 events. 757/1131 cut-off events. For 671/671 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4027 event pairs, 315 based on Foata normal form. 1/895 useless extension candidates. Maximal degree in co-relation 3213. Up to 701 conditions per place. [2024-01-31 17:13:17,386 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 72 selfloop transitions, 7 changer transitions 11/91 dead transitions. [2024-01-31 17:13:17,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 91 transitions, 506 flow [2024-01-31 17:13:17,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:13:17,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:13:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2024-01-31 17:13:17,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-01-31 17:13:17,393 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 152 flow. Second operand 6 states and 98 transitions. [2024-01-31 17:13:17,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 91 transitions, 506 flow [2024-01-31 17:13:17,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 91 transitions, 483 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-01-31 17:13:17,398 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 190 flow [2024-01-31 17:13:17,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=48, PETRI_TRANSITIONS=44} [2024-01-31 17:13:17,400 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 14 predicate places. [2024-01-31 17:13:17,400 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 190 flow [2024-01-31 17:13:17,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:17,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:13:17,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:13:17,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-31 17:13:17,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:17,614 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:13:17,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:13:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash -881909060, now seen corresponding path program 3 times [2024-01-31 17:13:17,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:13:17,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048129487] [2024-01-31 17:13:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:17,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:13:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:13:17,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:13:17,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048129487] [2024-01-31 17:13:17,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048129487] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:13:17,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882630459] [2024-01-31 17:13:17,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-31 17:13:17,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:17,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:13:17,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:13:17,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-31 17:13:17,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-01-31 17:13:17,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:13:17,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 5 conjunts are in the unsatisfiable core [2024-01-31 17:13:17,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:13:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:13:17,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-31 17:13:17,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882630459] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:13:17,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-31 17:13:17,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-01-31 17:13:17,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831092111] [2024-01-31 17:13:17,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:13:17,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 17:13:17,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:13:17,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 17:13:17,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-01-31 17:13:17,945 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 35 [2024-01-31 17:13:17,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:17,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:13:17,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 35 [2024-01-31 17:13:17,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:13:18,170 INFO L124 PetriNetUnfolderBase]: 819/1215 cut-off events. [2024-01-31 17:13:18,170 INFO L125 PetriNetUnfolderBase]: For 1410/1410 co-relation queries the response was YES. [2024-01-31 17:13:18,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4058 conditions, 1215 events. 819/1215 cut-off events. For 1410/1410 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4397 event pairs, 403 based on Foata normal form. 1/1028 useless extension candidates. Maximal degree in co-relation 4030. Up to 915 conditions per place. [2024-01-31 17:13:18,177 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 67 selfloop transitions, 11 changer transitions 11/90 dead transitions. [2024-01-31 17:13:18,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 90 transitions, 546 flow [2024-01-31 17:13:18,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:13:18,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:13:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 97 transitions. [2024-01-31 17:13:18,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46190476190476193 [2024-01-31 17:13:18,179 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 190 flow. Second operand 6 states and 97 transitions. [2024-01-31 17:13:18,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 90 transitions, 546 flow [2024-01-31 17:13:18,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 90 transitions, 520 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-01-31 17:13:18,184 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 261 flow [2024-01-31 17:13:18,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-01-31 17:13:18,185 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 20 predicate places. [2024-01-31 17:13:18,185 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 261 flow [2024-01-31 17:13:18,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:18,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:13:18,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:13:18,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-01-31 17:13:18,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:18,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:13:18,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:13:18,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1110106466, now seen corresponding path program 4 times [2024-01-31 17:13:18,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:13:18,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179051050] [2024-01-31 17:13:18,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:18,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:13:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:18,567 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:13:18,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:13:18,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179051050] [2024-01-31 17:13:18,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179051050] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:13:18,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825737008] [2024-01-31 17:13:18,568 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-01-31 17:13:18,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:18,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:13:18,569 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:13:18,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-31 17:13:18,668 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-01-31 17:13:18,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:13:18,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-31 17:13:18,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:13:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:13:18,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:13:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:13:18,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825737008] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:13:18,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:13:18,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-01-31 17:13:18,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703820264] [2024-01-31 17:13:18,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:13:18,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-01-31 17:13:18,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:13:18,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-01-31 17:13:18,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-01-31 17:13:18,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 35 [2024-01-31 17:13:18,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 261 flow. Second operand has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 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 17:13:18,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:13:18,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 35 [2024-01-31 17:13:18,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:13:19,223 INFO L124 PetriNetUnfolderBase]: 819/1227 cut-off events. [2024-01-31 17:13:19,223 INFO L125 PetriNetUnfolderBase]: For 2507/2507 co-relation queries the response was YES. [2024-01-31 17:13:19,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4485 conditions, 1227 events. 819/1227 cut-off events. For 2507/2507 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4722 event pairs, 155 based on Foata normal form. 12/1049 useless extension candidates. Maximal degree in co-relation 4450. Up to 378 conditions per place. [2024-01-31 17:13:19,230 INFO L140 encePairwiseOnDemand]: 18/35 looper letters, 101 selfloop transitions, 61 changer transitions 0/163 dead transitions. [2024-01-31 17:13:19,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 163 transitions, 1144 flow [2024-01-31 17:13:19,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-01-31 17:13:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-01-31 17:13:19,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 207 transitions. [2024-01-31 17:13:19,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3112781954887218 [2024-01-31 17:13:19,231 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 261 flow. Second operand 19 states and 207 transitions. [2024-01-31 17:13:19,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 163 transitions, 1144 flow [2024-01-31 17:13:19,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 163 transitions, 1058 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-01-31 17:13:19,238 INFO L231 Difference]: Finished difference. Result has 74 places, 89 transitions, 689 flow [2024-01-31 17:13:19,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=689, PETRI_PLACES=74, PETRI_TRANSITIONS=89} [2024-01-31 17:13:19,238 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 40 predicate places. [2024-01-31 17:13:19,238 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 89 transitions, 689 flow [2024-01-31 17:13:19,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 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 17:13:19,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:13:19,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:13:19,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-01-31 17:13:19,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:19,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:13:19,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:13:19,453 INFO L85 PathProgramCache]: Analyzing trace with hash -922043104, now seen corresponding path program 5 times [2024-01-31 17:13:19,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:13:19,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399288318] [2024-01-31 17:13:19,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:19,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:13:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:19,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:13:19,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:13:19,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399288318] [2024-01-31 17:13:19,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399288318] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:13:19,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932733112] [2024-01-31 17:13:19,608 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-01-31 17:13:19,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:19,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:13:19,612 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:13:19,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-01-31 17:13:19,723 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-31 17:13:19,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:13:19,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-31 17:13:19,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:13:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:13:19,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:13:19,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:13:19,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932733112] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:13:19,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:13:19,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-01-31 17:13:19,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916109134] [2024-01-31 17:13:19,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:13:19,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-01-31 17:13:19,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:13:19,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-01-31 17:13:19,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-01-31 17:13:19,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 35 [2024-01-31 17:13:19,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 89 transitions, 689 flow. Second operand has 15 states, 15 states have (on average 7.8) internal successors, (117), 15 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:19,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:13:19,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 35 [2024-01-31 17:13:19,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:13:20,248 INFO L124 PetriNetUnfolderBase]: 805/1198 cut-off events. [2024-01-31 17:13:20,248 INFO L125 PetriNetUnfolderBase]: For 4131/4131 co-relation queries the response was YES. [2024-01-31 17:13:20,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5155 conditions, 1198 events. 805/1198 cut-off events. For 4131/4131 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4498 event pairs, 197 based on Foata normal form. 10/1096 useless extension candidates. Maximal degree in co-relation 5087. Up to 490 conditions per place. [2024-01-31 17:13:20,256 INFO L140 encePairwiseOnDemand]: 24/35 looper letters, 87 selfloop transitions, 59 changer transitions 0/147 dead transitions. [2024-01-31 17:13:20,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 147 transitions, 1235 flow [2024-01-31 17:13:20,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-01-31 17:13:20,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-01-31 17:13:20,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 156 transitions. [2024-01-31 17:13:20,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3183673469387755 [2024-01-31 17:13:20,257 INFO L175 Difference]: Start difference. First operand has 74 places, 89 transitions, 689 flow. Second operand 14 states and 156 transitions. [2024-01-31 17:13:20,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 147 transitions, 1235 flow [2024-01-31 17:13:20,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 147 transitions, 1142 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-01-31 17:13:20,273 INFO L231 Difference]: Finished difference. Result has 82 places, 104 transitions, 849 flow [2024-01-31 17:13:20,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=849, PETRI_PLACES=82, PETRI_TRANSITIONS=104} [2024-01-31 17:13:20,273 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 48 predicate places. [2024-01-31 17:13:20,273 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 104 transitions, 849 flow [2024-01-31 17:13:20,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.8) internal successors, (117), 15 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:20,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:13:20,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:13:20,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-01-31 17:13:20,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:20,486 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:13:20,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:13:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1908067698, now seen corresponding path program 6 times [2024-01-31 17:13:20,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:13:20,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601434353] [2024-01-31 17:13:20,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:20,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:13:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-31 17:13:20,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:13:20,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601434353] [2024-01-31 17:13:20,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601434353] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:13:20,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384342485] [2024-01-31 17:13:20,596 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-01-31 17:13:20,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:20,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:13:20,597 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:13:20,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-01-31 17:13:20,713 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-01-31 17:13:20,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:13:20,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjunts are in the unsatisfiable core [2024-01-31 17:13:20,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:13:20,750 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-31 17:13:20,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-31 17:13:20,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384342485] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:13:20,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-31 17:13:20,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-01-31 17:13:20,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632090657] [2024-01-31 17:13:20,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:13:20,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 17:13:20,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:13:20,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 17:13:20,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-01-31 17:13:20,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 35 [2024-01-31 17:13:20,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 104 transitions, 849 flow. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:20,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:13:20,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 35 [2024-01-31 17:13:20,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:13:20,971 INFO L124 PetriNetUnfolderBase]: 805/1196 cut-off events. [2024-01-31 17:13:20,972 INFO L125 PetriNetUnfolderBase]: For 4865/4865 co-relation queries the response was YES. [2024-01-31 17:13:20,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5308 conditions, 1196 events. 805/1196 cut-off events. For 4865/4865 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4366 event pairs, 297 based on Foata normal form. 1/1085 useless extension candidates. Maximal degree in co-relation 5242. Up to 899 conditions per place. [2024-01-31 17:13:20,979 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 88 selfloop transitions, 32 changer transitions 12/133 dead transitions. [2024-01-31 17:13:20,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 133 transitions, 1206 flow [2024-01-31 17:13:20,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 17:13:20,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 17:13:20,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 95 transitions. [2024-01-31 17:13:20,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-01-31 17:13:20,980 INFO L175 Difference]: Start difference. First operand has 82 places, 104 transitions, 849 flow. Second operand 6 states and 95 transitions. [2024-01-31 17:13:20,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 133 transitions, 1206 flow [2024-01-31 17:13:20,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 133 transitions, 1119 flow, removed 20 selfloop flow, removed 6 redundant places. [2024-01-31 17:13:20,993 INFO L231 Difference]: Finished difference. Result has 82 places, 100 transitions, 786 flow [2024-01-31 17:13:20,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=786, PETRI_PLACES=82, PETRI_TRANSITIONS=100} [2024-01-31 17:13:20,994 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 48 predicate places. [2024-01-31 17:13:20,994 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 100 transitions, 786 flow [2024-01-31 17:13:20,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:13:20,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:13:20,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:13:21,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-01-31 17:13:21,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:21,208 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:13:21,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:13:21,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1955482542, now seen corresponding path program 1 times [2024-01-31 17:13:21,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:13:21,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049781450] [2024-01-31 17:13:21,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:21,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:13:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:22,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:13:22,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:13:22,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049781450] [2024-01-31 17:13:22,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049781450] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:13:22,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157407073] [2024-01-31 17:13:22,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:13:22,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:13:22,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:13:22,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-31 17:13:22,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-01-31 17:13:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:13:22,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 66 conjunts are in the unsatisfiable core [2024-01-31 17:13:22,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:13:22,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-01-31 17:13:22,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:13:22,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:13:22,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:13:22,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:13:22,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:13:22,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2024-01-31 17:13:22,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:13:22,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:13:22,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:13:22,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:13:22,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:13:22,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:13:22,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:13:22,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:13:22,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:13:22,869 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-01-31 17:13:22,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-01-31 17:13:22,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-01-31 17:13:22,951 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-01-31 17:13:22,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-01-31 17:13:22,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-01-31 17:13:23,019 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-01-31 17:13:23,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-01-31 17:13:23,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-01-31 17:13:23,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-01-31 17:13:23,566 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:13:23,574 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2024-01-31 17:13:23,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 42 [2024-01-31 17:13:23,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 17:13:23,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:13:51,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:13:51,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 676 treesize of output 353 [2024-01-31 17:15:46,801 WARN L293 SmtUtils]: Spent 1.89m on a formula simplification that was a NOOP. DAG size: 38 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-01-31 17:15:46,801 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:15:46,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 215388 treesize of output 190880 [2024-01-31 17:15:47,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:15:47,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1324 treesize of output 1220 [2024-01-31 17:15:47,335 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:15:47,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 2988 treesize of output 2468 [2024-01-31 17:21:42,862 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-01-31 17:21:55,505 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-01-31 17:22:00,933 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-01-31 17:22:02,681 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-01-31 17:22:05,991 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-01-31 17:23:18,654 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-01-31 17:24:56,403 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-01-31 17:25:07,318 WARN L293 SmtUtils]: Spent 10.86s on a formula simplification. DAG size of input: 347 DAG size of output: 306 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-01-31 17:26:19,680 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-01-31 17:26:24,940 WARN L293 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 340 DAG size of output: 340 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15