./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-20_10-08-36.files/protection-ghost/chl-chromosome-opt-symm.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da67795f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c ./goblint.2024-08-20_10-08-36.files/protection-ghost/chl-chromosome-opt-symm.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_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-tmp.dk.goblint-eval-da67795-m [2024-08-27 07:19:10,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-27 07:19:10,493 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-27 07:19:10,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-27 07:19:10,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-27 07:19:10,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-27 07:19:10,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-27 07:19:10,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-27 07:19:10,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-27 07:19:10,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-27 07:19:10,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-27 07:19:10,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-27 07:19:10,534 INFO L153 SettingsManager]: * Use SBE=true [2024-08-27 07:19:10,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-27 07:19:10,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-27 07:19:10,538 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-27 07:19:10,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-27 07:19:10,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-27 07:19:10,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-27 07:19:10,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-27 07:19:10,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-27 07:19:10,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-27 07:19:10,539 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-27 07:19:10,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-27 07:19:10,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-27 07:19:10,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-27 07:19:10,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-27 07:19:10,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-27 07:19:10,540 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-27 07:19:10,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-27 07:19:10,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 07:19:10,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-27 07:19:10,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-27 07:19:10,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-27 07:19:10,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-27 07:19:10,542 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-27 07:19:10,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-27 07:19:10,544 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-27 07:19:10,544 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-27 07:19:10,544 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-27 07:19:10,544 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-27 07:19:10,545 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-27 07:19:10,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-27 07:19:10,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-27 07:19:10,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-27 07:19:10,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-27 07:19:10,816 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-27 07:19:10,817 INFO L274 PluginConnector]: CDTParser initialized [2024-08-27 07:19:10,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2024-08-27 07:19:12,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-27 07:19:12,453 INFO L384 CDTParser]: Found 1 translation units. [2024-08-27 07:19:12,453 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2024-08-27 07:19:12,464 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/faeaf3163/d986305017a64a7e98b98c909000052e/FLAGdd8302451 [2024-08-27 07:19:12,811 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/faeaf3163/d986305017a64a7e98b98c909000052e [2024-08-27 07:19:12,814 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-27 07:19:12,814 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-27 07:19:12,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-20_10-08-36.files/protection-ghost/chl-chromosome-opt-symm.wvr.yml/witness.yml [2024-08-27 07:19:12,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-27 07:19:12,880 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-27 07:19:12,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-27 07:19:12,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-27 07:19:12,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-27 07:19:12,888 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:19:12" (1/2) ... [2024-08-27 07:19:12,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2093cfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:19:12, skipping insertion in model container [2024-08-27 07:19:12,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 07:19:12" (1/2) ... [2024-08-27 07:19:12,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76282f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 07:19:12, skipping insertion in model container [2024-08-27 07:19:12,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 07:19:12" (2/2) ... [2024-08-27 07:19:12,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2093cfbd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:12, skipping insertion in model container [2024-08-27 07:19:12,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 07:19:12" (2/2) ... [2024-08-27 07:19:12,892 INFO L85 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-27 07:19:12,913 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-08-27 07:19:12,915 INFO L1541 ArrayList]: Location invariant before [L89-L89] (! multithreaded || ((res2 == -1 || res2 == 0) || res2 == 1)) && (! multithreaded || ((res1 == -1 || res1 == 0) || res1 == 1)) [2024-08-27 07:19:12,916 INFO L1541 ArrayList]: Location invariant before [L88-L88] (! multithreaded || ((res2 == -1 || res2 == 0) || res2 == 1)) && (! multithreaded || ((res1 == -1 || res1 == 0) || res1 == 1)) [2024-08-27 07:19:12,916 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-08-27 07:19:12,916 INFO L1541 ArrayList]: ghost_update [L87-L87] multithreaded = 1; [2024-08-27 07:19:12,944 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-27 07:19:13,131 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2592,2605] [2024-08-27 07:19:13,147 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 07:19:13,161 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 07:19:13,230 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2592,2605] [2024-08-27 07:19:13,233 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 07:19:13,296 INFO L206 MainTranslator]: Completed translation [2024-08-27 07:19:13,300 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13 WrapperNode [2024-08-27 07:19:13,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-27 07:19:13,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-27 07:19:13,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-27 07:19:13,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-27 07:19:13,319 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 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,337 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 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,387 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 176 [2024-08-27 07:19:13,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-27 07:19:13,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-27 07:19:13,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-27 07:19:13,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-27 07:19:13,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-27 07:19:13,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-27 07:19:13,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-27 07:19:13,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-27 07:19:13,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (1/1) ... [2024-08-27 07:19:13,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 07:19:13,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:13,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-27 07:19:13,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-27 07:19:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-27 07:19:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-27 07:19:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-27 07:19:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-27 07:19:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-27 07:19:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-27 07:19:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-27 07:19:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-27 07:19:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-27 07:19:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-27 07:19:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-27 07:19:13,508 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-27 07:19:13,625 INFO L242 CfgBuilder]: Building ICFG [2024-08-27 07:19:13,627 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-27 07:19:14,011 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-27 07:19:14,013 INFO L291 CfgBuilder]: Performing block encoding [2024-08-27 07:19:14,266 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-27 07:19:14,266 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-08-27 07:19:14,266 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:19:14 BoogieIcfgContainer [2024-08-27 07:19:14,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-27 07:19:14,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-27 07:19:14,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-27 07:19:14,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-27 07:19:14,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 07:19:12" (1/4) ... [2024-08-27 07:19:14,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281d2a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 07:19:14, skipping insertion in model container [2024-08-27 07:19:14,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 07:19:12" (2/4) ... [2024-08-27 07:19:14,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281d2a58 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 07:19:14, skipping insertion in model container [2024-08-27 07:19:14,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 07:19:13" (3/4) ... [2024-08-27 07:19:14,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281d2a58 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 07:19:14, skipping insertion in model container [2024-08-27 07:19:14,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 07:19:14" (4/4) ... [2024-08-27 07:19:14,278 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2024-08-27 07:19:14,295 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-27 07:19:14,295 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-27 07:19:14,295 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-27 07:19:14,359 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-27 07:19:14,403 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 07:19:14,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 07:19:14,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:14,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 07:19:14,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-27 07:19:14,444 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 07:19:14,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-27 07:19:14,460 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=PARTIAL_ORDER_FA, 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;@2e303229, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 07:19:14,461 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-08-27 07:19:14,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:14,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:14,542 INFO L85 PathProgramCache]: Analyzing trace with hash -384762881, now seen corresponding path program 1 times [2024-08-27 07:19:14,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:14,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605338630] [2024-08-27 07:19:14,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:14,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 07:19:14,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:14,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605338630] [2024-08-27 07:19:14,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605338630] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 07:19:14,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 07:19:14,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-27 07:19:14,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571270354] [2024-08-27 07:19:14,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 07:19:14,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 07:19:14,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:14,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 07:19:14,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 07:19:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:14,917 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:14,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-08-27 07:19:14,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:15,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:15,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-27 07:19:15,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:15,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:15,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1349095612, now seen corresponding path program 1 times [2024-08-27 07:19:15,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:15,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002001477] [2024-08-27 07:19:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:15,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 07:19:15,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:15,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002001477] [2024-08-27 07:19:15,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002001477] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 07:19:15,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 07:19:15,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-27 07:19:15,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397350922] [2024-08-27 07:19:15,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 07:19:15,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 07:19:15,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:15,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 07:19:15,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-27 07:19:15,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:15,212 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:15,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-08-27 07:19:15,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:15,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:15,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-27 07:19:15,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:15,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:15,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1639578152, now seen corresponding path program 1 times [2024-08-27 07:19:15,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:15,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597864410] [2024-08-27 07:19:15,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:15,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 07:19:15,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:15,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597864410] [2024-08-27 07:19:15,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597864410] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:15,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413107943] [2024-08-27 07:19:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:15,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:15,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:15,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:15,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-27 07:19:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:15,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-27 07:19:15,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:15,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-27 07:19:15,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 07:19:15,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413107943] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 07:19:15,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 07:19:15,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-08-27 07:19:15,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451099825] [2024-08-27 07:19:15,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 07:19:15,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 07:19:15,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:15,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 07:19:15,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-27 07:19:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:15,717 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:15,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-08-27 07:19:15,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:15,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:15,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:15,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:15,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:15,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-08-27 07:19:16,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-08-27 07:19:16,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:16,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:16,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1389499110, now seen corresponding path program 1 times [2024-08-27 07:19:16,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:16,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286337346] [2024-08-27 07:19:16,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:16,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-27 07:19:16,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:16,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286337346] [2024-08-27 07:19:16,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286337346] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:16,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858942226] [2024-08-27 07:19:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:16,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:16,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:16,180 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:16,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-27 07:19:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:16,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2024-08-27 07:19:16,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-27 07:19:16,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 07:19:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-27 07:19:16,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858942226] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 07:19:16,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 07:19:16,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-08-27 07:19:16,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052664723] [2024-08-27 07:19:16,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 07:19:16,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-27 07:19:16,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:16,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-27 07:19:16,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-08-27 07:19:16,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:16,356 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:16,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2024-08-27 07:19:16,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:16,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:16,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-27 07:19:16,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:16,722 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:16,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash 728138330, now seen corresponding path program 2 times [2024-08-27 07:19:16,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:16,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964232249] [2024-08-27 07:19:16,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:16,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:16,898 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-08-27 07:19:16,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:16,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964232249] [2024-08-27 07:19:16,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964232249] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:16,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160642076] [2024-08-27 07:19:16,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-27 07:19:16,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:16,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:16,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:16,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-27 07:19:17,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-27 07:19:17,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 07:19:17,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-27 07:19:17,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-08-27 07:19:17,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 07:19:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-08-27 07:19:17,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160642076] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 07:19:17,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 07:19:17,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-08-27 07:19:17,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940955385] [2024-08-27 07:19:17,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 07:19:17,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-27 07:19:17,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-27 07:19:17,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-08-27 07:19:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:17,226 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:17,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 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) [2024-08-27 07:19:17,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:17,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:17,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:17,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:17,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:17,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-27 07:19:17,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:17,600 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:17,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:17,601 INFO L85 PathProgramCache]: Analyzing trace with hash 829816990, now seen corresponding path program 3 times [2024-08-27 07:19:17,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:17,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927209178] [2024-08-27 07:19:17,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:17,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:17,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:17,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927209178] [2024-08-27 07:19:17,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927209178] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:17,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076868222] [2024-08-27 07:19:17,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-27 07:19:17,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:17,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:17,771 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:17,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-27 07:19:17,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-08-27 07:19:17,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 07:19:17,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 21 conjunts are in the unsatisfiable core [2024-08-27 07:19:17,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-08-27 07:19:18,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 07:19:18,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076868222] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 07:19:18,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 07:19:18,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 15 [2024-08-27 07:19:18,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144789987] [2024-08-27 07:19:18,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 07:19:18,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-08-27 07:19:18,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:18,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-08-27 07:19:18,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-08-27 07:19:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:18,176 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:18,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 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) [2024-08-27 07:19:18,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:18,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:18,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:18,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:18,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:18,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:18,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:18,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:18,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:18,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:18,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:18,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:18,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-08-27 07:19:18,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-08-27 07:19:18,680 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:18,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:18,681 INFO L85 PathProgramCache]: Analyzing trace with hash 933616535, now seen corresponding path program 1 times [2024-08-27 07:19:18,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:18,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028115303] [2024-08-27 07:19:18,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:18,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:18,840 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:18,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:18,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028115303] [2024-08-27 07:19:18,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028115303] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:18,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762037103] [2024-08-27 07:19:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:18,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:18,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:18,844 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:18,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-27 07:19:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:18,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-27 07:19:18,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:19,033 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:19,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 07:19:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:19,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762037103] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 07:19:19,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 07:19:19,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-08-27 07:19:19,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619097904] [2024-08-27 07:19:19,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 07:19:19,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-27 07:19:19,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:19,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-27 07:19:19,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-08-27 07:19:19,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:19,140 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:19,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 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) [2024-08-27 07:19:19,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:19,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:19,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:19,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:19,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:19,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:19,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:19,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-27 07:19:19,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:19,481 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:19,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:19,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1010912923, now seen corresponding path program 2 times [2024-08-27 07:19:19,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:19,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591597542] [2024-08-27 07:19:19,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:19,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:21,110 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 14 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-08-27 07:19:21,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:21,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591597542] [2024-08-27 07:19:21,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591597542] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:21,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579094743] [2024-08-27 07:19:21,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-27 07:19:21,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:21,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:21,114 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:21,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-27 07:19:21,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-27 07:19:21,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 07:19:21,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 29 conjunts are in the unsatisfiable core [2024-08-27 07:19:21,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-08-27 07:19:21,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 07:19:21,739 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-08-27 07:19:21,740 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 40 treesize of output 56 [2024-08-27 07:19:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-08-27 07:19:21,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579094743] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 07:19:21,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 07:19:21,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 8] total 28 [2024-08-27 07:19:21,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300700834] [2024-08-27 07:19:21,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 07:19:21,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-08-27 07:19:21,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:21,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-08-27 07:19:21,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2024-08-27 07:19:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:21,821 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:21,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.392857142857143) internal successors, (67), 28 states have internal predecessors, (67), 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) [2024-08-27 07:19:21,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:21,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:21,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:21,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:21,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:21,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:21,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:21,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-27 07:19:22,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-08-27 07:19:23,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-08-27 07:19:23,044 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:23,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:23,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1933953299, now seen corresponding path program 3 times [2024-08-27 07:19:23,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:23,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357349453] [2024-08-27 07:19:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:23,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 37 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:23,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:23,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357349453] [2024-08-27 07:19:23,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357349453] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:23,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736588433] [2024-08-27 07:19:23,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-27 07:19:23,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:23,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:23,231 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:23,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-27 07:19:23,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-08-27 07:19:23,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 07:19:23,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-27 07:19:23,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:23,532 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:23,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 07:19:23,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736588433] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 07:19:23,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 07:19:23,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2024-08-27 07:19:23,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985207719] [2024-08-27 07:19:23,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 07:19:23,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-27 07:19:23,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:23,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-27 07:19:23,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-08-27 07:19:23,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:23,534 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:23,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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) [2024-08-27 07:19:23,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:23,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:23,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:23,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:23,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:23,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:23,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:23,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-08-27 07:19:23,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-27 07:19:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:23,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-08-27 07:19:23,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:24,000 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:24,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:24,001 INFO L85 PathProgramCache]: Analyzing trace with hash -329046479, now seen corresponding path program 1 times [2024-08-27 07:19:24,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:24,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923077654] [2024-08-27 07:19:24,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:24,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:24,244 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 68 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:24,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:24,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923077654] [2024-08-27 07:19:24,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923077654] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:24,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257807956] [2024-08-27 07:19:24,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:24,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:24,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:24,247 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:24,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-27 07:19:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:24,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-27 07:19:24,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-08-27 07:19:24,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 07:19:24,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257807956] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 07:19:24,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 07:19:24,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 11 [2024-08-27 07:19:24,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672209480] [2024-08-27 07:19:24,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 07:19:24,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-27 07:19:24,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:24,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-27 07:19:24,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2024-08-27 07:19:24,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:24,441 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:24,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:24,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-27 07:19:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:24,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-08-27 07:19:24,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-08-27 07:19:24,873 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:24,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:24,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1853316900, now seen corresponding path program 1 times [2024-08-27 07:19:24,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:24,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789042139] [2024-08-27 07:19:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:24,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-08-27 07:19:26,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:26,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789042139] [2024-08-27 07:19:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789042139] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:26,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24275024] [2024-08-27 07:19:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:26,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:26,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:26,617 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:26,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-27 07:19:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:26,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 29 conjunts are in the unsatisfiable core [2024-08-27 07:19:26,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:27,213 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-08-27 07:19:27,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 127 treesize of output 64 [2024-08-27 07:19:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:27,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 07:19:27,590 INFO L349 Elim1Store]: treesize reduction 28, result has 63.6 percent of original size [2024-08-27 07:19:27,591 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 144 treesize of output 112 [2024-08-27 07:19:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-08-27 07:19:27,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24275024] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 07:19:27,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 07:19:27,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 9] total 39 [2024-08-27 07:19:27,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110887190] [2024-08-27 07:19:27,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 07:19:27,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-08-27 07:19:27,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:27,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-08-27 07:19:27,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1353, Unknown=0, NotChecked=0, Total=1482 [2024-08-27 07:19:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:27,735 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:27,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.3333333333333335) internal successors, (91), 39 states have internal predecessors, (91), 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) [2024-08-27 07:19:27,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:27,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:27,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:27,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:27,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:27,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:27,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:27,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-27 07:19:27,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:27,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:27,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-08-27 07:19:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:30,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-08-27 07:19:30,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-08-27 07:19:31,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-08-27 07:19:31,099 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:31,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:31,100 INFO L85 PathProgramCache]: Analyzing trace with hash 633940090, now seen corresponding path program 2 times [2024-08-27 07:19:31,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:31,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464070949] [2024-08-27 07:19:31,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:31,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:31,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:31,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464070949] [2024-08-27 07:19:31,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464070949] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 07:19:31,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794310517] [2024-08-27 07:19:31,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-27 07:19:31,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:31,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 07:19:31,248 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 07:19:31,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-27 07:19:31,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-27 07:19:31,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 07:19:31,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-27 07:19:31,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 07:19:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:31,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 07:19:31,570 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-08-27 07:19:31,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794310517] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 07:19:31,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 07:19:31,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 10 [2024-08-27 07:19:31,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418114727] [2024-08-27 07:19:31,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 07:19:31,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-08-27 07:19:31,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:31,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-08-27 07:19:31,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-08-27 07:19:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:31,576 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:31,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 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) [2024-08-27 07:19:31,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:31,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2024-08-27 07:19:31,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-27 07:19:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-27 07:19:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-27 07:19:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:32,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-08-27 07:19:33,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 07:19:33,013 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:33,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:33,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1297992517, now seen corresponding path program 1 times [2024-08-27 07:19:33,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:33,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896926409] [2024-08-27 07:19:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:33,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-08-27 07:19:33,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:33,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896926409] [2024-08-27 07:19:33,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896926409] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 07:19:33,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 07:19:33,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-27 07:19:33,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734216569] [2024-08-27 07:19:33,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 07:19:33,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 07:19:33,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:33,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 07:19:33,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-08-27 07:19:33,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:33,448 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:33,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2024-08-27 07:19:33,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:33,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:33,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:33,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:33,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:33,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-27 07:19:33,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:33,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-27 07:19:33,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:33,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:33,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-08-27 07:19:33,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:33,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-27 07:19:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-08-27 07:19:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-08-27 07:19:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 07:19:33,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-27 07:19:33,786 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 07:19:33,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 07:19:33,786 INFO L85 PathProgramCache]: Analyzing trace with hash 968473010, now seen corresponding path program 1 times [2024-08-27 07:19:33,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 07:19:33,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766342694] [2024-08-27 07:19:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 07:19:33,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 07:19:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 07:19:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-08-27 07:19:34,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 07:19:34,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766342694] [2024-08-27 07:19:34,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766342694] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 07:19:34,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 07:19:34,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 07:19:34,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849874320] [2024-08-27 07:19:34,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 07:19:34,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 07:19:34,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 07:19:34,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 07:19:34,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-27 07:19:34,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:34,035 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 07:19:34,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-08-27 07:19:34,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:34,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:34,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:34,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:34,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:34,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-27 07:19:34,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:34,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-08-27 07:19:34,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:34,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:34,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2024-08-27 07:19:34,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:34,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 07:19:34,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 07:19:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 07:19:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 07:19:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-27 07:19:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-27 07:19:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-08-27 07:19:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 07:19:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-08-27 07:19:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 07:19:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 07:19:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 07:19:35,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-08-27 07:19:35,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-08-27 07:19:35,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-08-27 07:19:35,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-08-27 07:19:35,309 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-08-27 07:19:35,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-08-27 07:19:35,314 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-08-27 07:19:35,317 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-27 07:19:35,317 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-27 07:19:35,319 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-08-27 07:19:35,319 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-08-27 07:19:35,320 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 07:19:35 BasicIcfg [2024-08-27 07:19:35,320 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-27 07:19:35,320 INFO L158 Benchmark]: Toolchain (without parser) took 22441.23ms. Allocated memory was 155.2MB in the beginning and 362.8MB in the end (delta: 207.6MB). Free memory was 84.8MB in the beginning and 296.7MB in the end (delta: -212.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-27 07:19:35,321 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-27 07:19:35,321 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 155.2MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 175.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-27 07:19:35,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.49ms. Allocated memory is still 155.2MB. Free memory was 84.6MB in the beginning and 127.5MB in the end (delta: -42.9MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-08-27 07:19:35,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.37ms. Allocated memory is still 155.2MB. Free memory was 127.5MB in the beginning and 125.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-27 07:19:35,322 INFO L158 Benchmark]: Boogie Preprocessor took 37.99ms. Allocated memory is still 155.2MB. Free memory was 125.1MB in the beginning and 123.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-27 07:19:35,322 INFO L158 Benchmark]: RCFGBuilder took 839.45ms. Allocated memory is still 155.2MB. Free memory was 123.0MB in the beginning and 72.1MB in the end (delta: 50.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-08-27 07:19:35,322 INFO L158 Benchmark]: TraceAbstraction took 21051.57ms. Allocated memory was 155.2MB in the beginning and 362.8MB in the end (delta: 207.6MB). Free memory was 71.8MB in the beginning and 296.7MB in the end (delta: -225.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-27 07:19:35,324 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 155.2MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 175.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.49ms. Allocated memory is still 155.2MB. Free memory was 84.6MB in the beginning and 127.5MB in the end (delta: -42.9MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.37ms. Allocated memory is still 155.2MB. Free memory was 127.5MB in the beginning and 125.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.99ms. Allocated memory is still 155.2MB. Free memory was 125.1MB in the beginning and 123.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 839.45ms. Allocated memory is still 155.2MB. Free memory was 123.0MB in the beginning and 72.1MB in the end (delta: 50.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 21051.57ms. Allocated memory was 155.2MB in the beginning and 362.8MB in the end (delta: 207.6MB). Free memory was 71.8MB in the beginning and 296.7MB in the end (delta: -225.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4975, independent: 4079, independent conditional: 3713, independent unconditional: 366, dependent: 896, dependent conditional: 887, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4095, independent: 4079, independent conditional: 3713, independent unconditional: 366, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4095, independent: 4079, independent conditional: 3713, independent unconditional: 366, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4461, independent: 4079, independent conditional: 191, independent unconditional: 3888, dependent: 382, dependent conditional: 175, dependent unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4461, independent: 4079, independent conditional: 191, independent unconditional: 3888, dependent: 382, dependent conditional: 98, dependent unconditional: 284, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4461, independent: 4079, independent conditional: 191, independent unconditional: 3888, dependent: 382, dependent conditional: 98, dependent unconditional: 284, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 377, independent: 350, independent conditional: 27, independent unconditional: 323, dependent: 27, dependent conditional: 15, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 377, independent: 322, independent conditional: 0, independent unconditional: 322, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 55, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 27, dependent conditional: 15, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 55, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 27, dependent conditional: 15, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 164, independent: 98, independent conditional: 69, independent unconditional: 29, dependent: 66, dependent conditional: 29, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 4461, independent: 3729, independent conditional: 164, independent unconditional: 3565, dependent: 355, dependent conditional: 83, dependent unconditional: 272, unknown: 377, unknown conditional: 42, unknown unconditional: 335] , Statistics on independence cache: Total cache size (in pairs): 377, Positive cache size: 350, Positive conditional cache size: 27, Positive unconditional cache size: 323, Negative cache size: 27, Negative conditional cache size: 15, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 77, Maximal queried relation: 9, Independence queries for same thread: 880 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 116, Number of trivial persistent sets: 104, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 375, independent: 366, independent conditional: 0, independent unconditional: 366, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4975, independent: 4079, independent conditional: 3713, independent unconditional: 366, dependent: 896, dependent conditional: 887, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4095, independent: 4079, independent conditional: 3713, independent unconditional: 366, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4095, independent: 4079, independent conditional: 3713, independent unconditional: 366, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4461, independent: 4079, independent conditional: 191, independent unconditional: 3888, dependent: 382, dependent conditional: 175, dependent unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4461, independent: 4079, independent conditional: 191, independent unconditional: 3888, dependent: 382, dependent conditional: 98, dependent unconditional: 284, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4461, independent: 4079, independent conditional: 191, independent unconditional: 3888, dependent: 382, dependent conditional: 98, dependent unconditional: 284, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 377, independent: 350, independent conditional: 27, independent unconditional: 323, dependent: 27, dependent conditional: 15, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 377, independent: 322, independent conditional: 0, independent unconditional: 322, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 55, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 27, dependent conditional: 15, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 55, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 27, dependent conditional: 15, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 164, independent: 98, independent conditional: 69, independent unconditional: 29, dependent: 66, dependent conditional: 29, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 4461, independent: 3729, independent conditional: 164, independent unconditional: 3565, dependent: 355, dependent conditional: 83, dependent unconditional: 272, unknown: 377, unknown conditional: 42, unknown unconditional: 335] , Statistics on independence cache: Total cache size (in pairs): 377, Positive cache size: 350, Positive conditional cache size: 27, Positive unconditional cache size: 323, Negative cache size: 27, Negative conditional cache size: 15, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 77, Maximal queried relation: 9, Independence queries for same thread: 880 - PositiveResult [Line: 88]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 89]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 93]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 41 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 20.9s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 8.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 208, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 934 NumberOfCodeBlocks, 930 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1145 ConstructedInterpolants, 0 QuantifiedInterpolants, 5041 SizeOfPredicates, 50 NumberOfNonLiveVariables, 2805 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 30 InterpolantComputations, 8 PerfectInterpolantSequences, 1045/1380 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-08-27 07:19:35,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-08-27 07:19:35,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE