./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/protection-ghost/popl20-simple-array-sum.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 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/popl20-simple-array-sum.wvr.c ./goblint.2024-09-02_08-21-23.files/protection-ghost/popl20-simple-array-sum.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 12:28:35,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 12:28:35,450 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 12:28:35,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 12:28:35,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 12:28:35,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 12:28:35,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 12:28:35,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 12:28:35,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 12:28:35,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 12:28:35,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 12:28:35,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 12:28:35,513 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 12:28:35,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 12:28:35,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 12:28:35,516 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 12:28:35,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 12:28:35,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 12:28:35,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 12:28:35,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 12:28:35,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 12:28:35,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 12:28:35,522 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 12:28:35,522 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 12:28:35,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 12:28:35,522 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 12:28:35,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 12:28:35,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 12:28:35,523 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 12:28:35,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 12:28:35,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 12:28:35,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 12:28:35,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 12:28:35,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 12:28:35,524 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 12:28:35,524 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 12:28:35,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 12:28:35,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 12:28:35,525 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 12:28:35,525 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 12:28:35,525 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 12:28:35,528 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 12:28:35,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 12:28:35,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 12:28:35,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 12:28:35,823 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 12:28:35,824 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 12:28:35,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-ghost/popl20-simple-array-sum.wvr.yml/witness.yml [2024-09-08 12:28:35,931 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 12:28:35,932 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 12:28:35,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2024-09-08 12:28:37,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 12:28:37,767 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 12:28:37,768 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2024-09-08 12:28:37,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9ca751306/590bfc2b532e4afb89ae7620224a502e/FLAG1c8de7a4e [2024-09-08 12:28:37,789 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9ca751306/590bfc2b532e4afb89ae7620224a502e [2024-09-08 12:28:37,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 12:28:37,791 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 12:28:37,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 12:28:37,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 12:28:37,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 12:28:37,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:28:35" (1/2) ... [2024-09-08 12:28:37,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e29a9d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:28:37, skipping insertion in model container [2024-09-08 12:28:37,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:28:35" (1/2) ... [2024-09-08 12:28:37,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@617c8f80 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:28:37, skipping insertion in model container [2024-09-08 12:28:37,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:28:37" (2/2) ... [2024-09-08 12:28:37,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e29a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:37, skipping insertion in model container [2024-09-08 12:28:37,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:28:37" (2/2) ... [2024-09-08 12:28:37,814 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 12:28:37,815 INFO L1541 ArrayList]: Location invariant before [L97-L97] ! multithreaded || 0 <= p [2024-09-08 12:28:37,815 INFO L1541 ArrayList]: Location invariant before [L96-L96] ! multithreaded || 0 <= p [2024-09-08 12:28:37,815 INFO L1541 ArrayList]: Location invariant before [L98-L98] ! multithreaded || 0 <= p [2024-09-08 12:28:37,815 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 12:28:37,815 INFO L1541 ArrayList]: ghost_update [L95-L95] multithreaded = 1; [2024-09-08 12:28:37,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 12:28:38,037 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/popl20-simple-array-sum.wvr.c[2729,2742] [2024-09-08 12:28:38,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 12:28:38,060 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 12:28:38,117 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/popl20-simple-array-sum.wvr.c[2729,2742] [2024-09-08 12:28:38,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 12:28:38,145 INFO L204 MainTranslator]: Completed translation [2024-09-08 12:28:38,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38 WrapperNode [2024-09-08 12:28:38,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 12:28:38,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 12:28:38,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 12:28:38,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 12:28:38,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,187 INFO L138 Inliner]: procedures = 25, calls = 28, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 118 [2024-09-08 12:28:38,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 12:28:38,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 12:28:38,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 12:28:38,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 12:28:38,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,233 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 12:28:38,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 12:28:38,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 12:28:38,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 12:28:38,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (1/1) ... [2024-09-08 12:28:38,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 12:28:38,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:38,285 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) [2024-09-08 12:28:38,288 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 [2024-09-08 12:28:38,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 12:28:38,338 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 12:28:38,338 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 12:28:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 12:28:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 12:28:38,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 12:28:38,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 12:28:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 12:28:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 12:28:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 12:28:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 12:28:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 12:28:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 12:28:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 12:28:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 12:28:38,343 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 12:28:38,507 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 12:28:38,510 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 12:28:38,829 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 12:28:38,830 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 12:28:39,011 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 12:28:39,011 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-08 12:28:39,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:28:39 BoogieIcfgContainer [2024-09-08 12:28:39,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 12:28:39,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 12:28:39,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 12:28:39,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 12:28:39,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:28:35" (1/4) ... [2024-09-08 12:28:39,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4b4bd9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 12:28:39, skipping insertion in model container [2024-09-08 12:28:39,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 12:28:37" (2/4) ... [2024-09-08 12:28:39,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4b4bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:28:39, skipping insertion in model container [2024-09-08 12:28:39,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:28:38" (3/4) ... [2024-09-08 12:28:39,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4b4bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:28:39, skipping insertion in model container [2024-09-08 12:28:39,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:28:39" (4/4) ... [2024-09-08 12:28:39,021 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2024-09-08 12:28:39,039 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 12:28:39,040 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-08 12:28:39,040 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 12:28:39,110 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-08 12:28:39,156 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 12:28:39,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 12:28:39,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:39,160 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) [2024-09-08 12:28:39,168 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 [2024-09-08 12:28:39,220 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 12:28:39,236 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 12:28:39,247 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@a46c7c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 12:28:39,248 INFO L337 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-09-08 12:28:39,373 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:39,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:39,379 INFO L85 PathProgramCache]: Analyzing trace with hash 989883032, now seen corresponding path program 1 times [2024-09-08 12:28:39,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:39,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179338367] [2024-09-08 12:28:39,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:39,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:39,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 12:28:39,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:39,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179338367] [2024-09-08 12:28:39,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179338367] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 12:28:39,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 12:28:39,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-08 12:28:39,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107658731] [2024-09-08 12:28:39,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 12:28:39,791 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 12:28:39,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 12:28:39,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 12:28:39,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:39,824 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:39,825 INFO L475 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) [2024-09-08 12:28:39,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:40,020 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 12:28:40,020 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:40,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:40,021 INFO L85 PathProgramCache]: Analyzing trace with hash 189935508, now seen corresponding path program 1 times [2024-09-08 12:28:40,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:40,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129275331] [2024-09-08 12:28:40,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:40,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:40,398 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-09-08 12:28:40,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:40,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129275331] [2024-09-08 12:28:40,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129275331] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 12:28:40,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 12:28:40,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 12:28:40,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871882585] [2024-09-08 12:28:40,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 12:28:40,405 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 12:28:40,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:40,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 12:28:40,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-08 12:28:40,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:40,406 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:40,406 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2024-09-08 12:28:40,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:40,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:40,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:40,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:40,580 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 12:28:40,580 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:40,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:40,581 INFO L85 PathProgramCache]: Analyzing trace with hash 999013090, now seen corresponding path program 1 times [2024-09-08 12:28:40,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:40,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831465406] [2024-09-08 12:28:40,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:40,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:40,887 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 12:28:40,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:40,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831465406] [2024-09-08 12:28:40,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831465406] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:28:40,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546160337] [2024-09-08 12:28:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:40,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:40,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:40,908 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) [2024-09-08 12:28:40,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 12:28:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:41,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 12:28:41,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:28:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 12:28:41,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:28:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 12:28:41,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546160337] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:28:41,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:28:41,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-09-08 12:28:41,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992836272] [2024-09-08 12:28:41,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:28:41,283 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 12:28:41,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:41,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 12:28:41,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-09-08 12:28:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:41,284 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:41,285 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 13 states have internal predecessors, (95), 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) [2024-09-08 12:28:41,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:41,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:41,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:41,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:41,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:41,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:41,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 12:28:41,667 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-09-08 12:28:41,667 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:41,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:41,668 INFO L85 PathProgramCache]: Analyzing trace with hash 244693972, now seen corresponding path program 2 times [2024-09-08 12:28:41,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:41,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348813792] [2024-09-08 12:28:41,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:41,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 12:28:41,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:41,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348813792] [2024-09-08 12:28:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348813792] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:28:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530660613] [2024-09-08 12:28:41,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 12:28:41,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:41,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:41,935 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) [2024-09-08 12:28:41,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 12:28:42,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 12:28:42,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 12:28:42,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-08 12:28:42,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:28:42,217 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 12:28:42,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:28:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 12:28:42,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530660613] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:28:42,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:28:42,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-09-08 12:28:42,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178796804] [2024-09-08 12:28:42,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:28:42,346 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-08 12:28:42,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:42,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-08 12:28:42,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-09-08 12:28:42,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:42,347 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:42,348 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 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) [2024-09-08 12:28:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:42,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:42,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:42,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-08 12:28:42,722 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:42,723 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:42,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:42,723 INFO L85 PathProgramCache]: Analyzing trace with hash -589341790, now seen corresponding path program 3 times [2024-09-08 12:28:42,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:42,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708996866] [2024-09-08 12:28:42,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:42,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 12:28:42,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:42,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708996866] [2024-09-08 12:28:42,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708996866] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:28:42,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195823396] [2024-09-08 12:28:42,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 12:28:42,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:42,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:42,959 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) [2024-09-08 12:28:42,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 12:28:43,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-08 12:28:43,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 12:28:43,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 12:28:43,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:28:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 12:28:43,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:28:43,378 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-09-08 12:28:43,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195823396] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:28:43,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:28:43,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 6] total 20 [2024-09-08 12:28:43,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639518760] [2024-09-08 12:28:43,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:28:43,381 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-08 12:28:43,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:43,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-08 12:28:43,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-09-08 12:28:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:43,382 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:43,385 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 states have internal predecessors, (120), 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) [2024-09-08 12:28:43,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:43,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:43,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:43,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:43,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:44,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 12:28:44,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 12:28:44,382 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:44,383 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:44,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:44,383 INFO L85 PathProgramCache]: Analyzing trace with hash 671265464, now seen corresponding path program 4 times [2024-09-08 12:28:44,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:44,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230811982] [2024-09-08 12:28:44,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:44,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:44,649 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 43 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 12:28:44,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:44,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230811982] [2024-09-08 12:28:44,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230811982] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:28:44,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113332491] [2024-09-08 12:28:44,650 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 12:28:44,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:44,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:44,652 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) [2024-09-08 12:28:44,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 12:28:44,748 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 12:28:44,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 12:28:44,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-08 12:28:44,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:28:45,027 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 16 proven. 39 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-08 12:28:45,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:28:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-08 12:28:45,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113332491] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:28:45,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:28:45,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 6] total 22 [2024-09-08 12:28:45,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388274686] [2024-09-08 12:28:45,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:28:45,152 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-08 12:28:45,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:45,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-08 12:28:45,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-09-08 12:28:45,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:45,154 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:45,154 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.5) internal successors, (143), 22 states have internal predecessors, (143), 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) [2024-09-08 12:28:45,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:45,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:45,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:45,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:45,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 12:28:45,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:45,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 12:28:45,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 12:28:45,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-08 12:28:45,754 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-08 12:28:45,755 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:45,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:45,756 INFO L85 PathProgramCache]: Analyzing trace with hash 839732214, now seen corresponding path program 5 times [2024-09-08 12:28:45,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:45,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922664847] [2024-09-08 12:28:45,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:45,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-09-08 12:28:46,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:46,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922664847] [2024-09-08 12:28:46,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922664847] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 12:28:46,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 12:28:46,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-08 12:28:46,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391951425] [2024-09-08 12:28:46,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 12:28:46,044 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 12:28:46,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:46,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 12:28:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-08 12:28:46,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:46,045 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:46,045 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 12:28:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:46,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:46,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 12:28:46,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 12:28:46,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:46,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 12:28:46,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 12:28:46,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 12:28:46,266 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-08 12:28:46,267 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:46,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:46,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2048086187, now seen corresponding path program 1 times [2024-09-08 12:28:46,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:46,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124743277] [2024-09-08 12:28:46,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:46,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:46,546 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 3 proven. 71 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-08 12:28:46,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:46,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124743277] [2024-09-08 12:28:46,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124743277] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:28:46,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447857382] [2024-09-08 12:28:46,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:46,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:46,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:46,550 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) [2024-09-08 12:28:46,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 12:28:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:46,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 12:28:46,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:28:46,901 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 6 proven. 68 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-08 12:28:46,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:28:47,126 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 10 proven. 64 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-08 12:28:47,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447857382] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:28:47,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:28:47,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 24 [2024-09-08 12:28:47,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114868896] [2024-09-08 12:28:47,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:28:47,128 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-08 12:28:47,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:47,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-08 12:28:47,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2024-09-08 12:28:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:47,129 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:47,129 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.4) internal successors, (135), 24 states have internal predecessors, (135), 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) [2024-09-08 12:28:47,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:47,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:47,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:47,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:47,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 12:28:47,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 12:28:47,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 12:28:47,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 12:28:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 12:28:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 12:28:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-08 12:28:47,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-08 12:28:47,713 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:47,714 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:47,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:47,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1160710826, now seen corresponding path program 2 times [2024-09-08 12:28:47,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:47,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878650750] [2024-09-08 12:28:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:47,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:49,034 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 186 proven. 231 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 12:28:49,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:49,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878650750] [2024-09-08 12:28:49,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878650750] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:28:49,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730589576] [2024-09-08 12:28:49,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 12:28:49,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:49,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:49,039 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) [2024-09-08 12:28:49,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 12:28:49,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 12:28:49,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 12:28:49,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-08 12:28:49,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:28:49,612 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 287 proven. 10 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-09-08 12:28:49,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:28:50,058 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 287 proven. 10 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-09-08 12:28:50,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730589576] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:28:50,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:28:50,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 12, 12] total 55 [2024-09-08 12:28:50,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377012062] [2024-09-08 12:28:50,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:28:50,062 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-09-08 12:28:50,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:50,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-09-08 12:28:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2658, Unknown=0, NotChecked=0, Total=3080 [2024-09-08 12:28:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:50,069 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:50,070 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 4.642857142857143) internal successors, (260), 55 states have internal predecessors, (260), 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) [2024-09-08 12:28:50,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:50,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:50,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:50,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:50,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 12:28:50,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 12:28:50,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 12:28:50,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-08 12:28:50,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:50,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 12:28:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 12:28:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 12:28:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-08 12:28:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:28:50,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-08 12:28:50,729 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-09-08 12:28:50,731 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:50,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:50,732 INFO L85 PathProgramCache]: Analyzing trace with hash 634286108, now seen corresponding path program 3 times [2024-09-08 12:28:50,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:50,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73407644] [2024-09-08 12:28:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:50,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:51,890 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 186 proven. 236 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 12:28:51,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:51,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73407644] [2024-09-08 12:28:51,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73407644] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:28:51,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218759937] [2024-09-08 12:28:51,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 12:28:51,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:51,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:51,893 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) [2024-09-08 12:28:51,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-08 12:28:52,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 12:28:52,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 12:28:52,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 12:28:52,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:28:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 115 proven. 5 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-09-08 12:28:52,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:28:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 115 proven. 5 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-09-08 12:28:52,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218759937] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:28:52,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:28:52,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 7, 7] total 43 [2024-09-08 12:28:52,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384983319] [2024-09-08 12:28:52,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:28:52,324 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-08 12:28:52,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:52,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-08 12:28:52,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1558, Unknown=0, NotChecked=0, Total=1806 [2024-09-08 12:28:52,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:52,326 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:52,326 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.255813953488372) internal successors, (183), 43 states have internal predecessors, (183), 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) [2024-09-08 12:28:52,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:52,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:52,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:52,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:52,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 12:28:52,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 12:28:52,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 12:28:52,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-08 12:28:52,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:28:52,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 12:28:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 12:28:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-08 12:28:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:28:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 12:28:54,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-08 12:28:54,605 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:54,606 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:54,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1635474833, now seen corresponding path program 6 times [2024-09-08 12:28:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:54,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124481325] [2024-09-08 12:28:54,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:54,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 30 proven. 65 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-09-08 12:28:55,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:55,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124481325] [2024-09-08 12:28:55,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124481325] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:28:55,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031378288] [2024-09-08 12:28:55,193 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 12:28:55,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:55,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:55,195 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) [2024-09-08 12:28:55,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-08 12:28:55,322 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-09-08 12:28:55,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 12:28:55,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 12:28:55,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:28:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-09-08 12:28:55,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 12:28:55,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031378288] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 12:28:55,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 12:28:55,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 17 [2024-09-08 12:28:55,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020386899] [2024-09-08 12:28:55,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 12:28:55,468 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 12:28:55,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:55,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 12:28:55,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-09-08 12:28:55,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:55,471 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:55,471 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-09-08 12:28:55,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:55,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:55,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:55,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:55,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-08 12:28:55,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 12:28:55,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:55,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-08 12:28:55,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:28:55,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-08 12:28:55,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:56,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-08 12:28:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-08 12:28:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:28:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-08 12:28:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:28:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 12:28:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:56,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-08 12:28:56,576 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:56,577 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:28:56,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:28:56,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1192682140, now seen corresponding path program 1 times [2024-09-08 12:28:56,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:28:56,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568137962] [2024-09-08 12:28:56,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:56,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:28:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-08 12:28:56,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:28:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568137962] [2024-09-08 12:28:56,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568137962] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:28:56,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115483185] [2024-09-08 12:28:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:28:56,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:28:56,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:28:56,693 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) [2024-09-08 12:28:56,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-08 12:28:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:28:56,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 12:28:56,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:28:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 41 proven. 19 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-08 12:28:56,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:28:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 41 proven. 19 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-08 12:28:56,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115483185] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 12:28:56,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 12:28:56,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-08 12:28:56,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640980188] [2024-09-08 12:28:56,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 12:28:56,958 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 12:28:56,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:28:56,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 12:28:56,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-08 12:28:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:28:56,959 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:28:56,959 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 12:28:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:28:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:28:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:28:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-09-08 12:28:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-09-08 12:28:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:28:56,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-08 12:28:56,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:28:56,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 12:28:56,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:28:56,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:30:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:30:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:30:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:30:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:30:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-09-08 12:30:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-09-08 12:30:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:30:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 12:30:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2024-09-08 12:30:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 426 states. [2024-09-08 12:30:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:30:24,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:30:24,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-08 12:30:24,569 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-08 12:30:24,570 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 4 more)] === [2024-09-08 12:30:24,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 12:30:24,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1674019338, now seen corresponding path program 1 times [2024-09-08 12:30:24,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 12:30:24,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294812959] [2024-09-08 12:30:24,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:30:24,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 12:30:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:30:24,655 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 12:30:24,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 12:30:24,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294812959] [2024-09-08 12:30:24,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294812959] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 12:30:24,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652458889] [2024-09-08 12:30:24,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 12:30:24,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 12:30:24,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 12:30:24,661 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) [2024-09-08 12:30:24,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-08 12:30:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 12:30:24,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 12:30:24,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 12:30:24,832 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 12:30:24,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 12:30:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 12:30:24,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652458889] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-08 12:30:24,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-08 12:30:24,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2024-09-08 12:30:24,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604686969] [2024-09-08 12:30:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 12:30:24,891 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 12:30:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 12:30:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 12:30:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-09-08 12:30:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 12:30:24,892 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 12:30:24,892 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-09-08 12:30:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 12:30:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 12:30:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 12:30:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 12:30:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2024-09-08 12:30:24,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2024-09-08 12:30:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:30:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-08 12:30:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2024-09-08 12:30:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 426 states. [2024-09-08 12:30:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 12:30:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 12:30:24,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.