./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/fib_safe-11.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/fib_safe-11.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/pthread/fib_safe-11.i ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/fib_safe-11.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 14:33:01,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 14:33:01,428 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 14:33:01,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 14:33:01,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 14:33:01,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 14:33:01,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 14:33:01,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 14:33:01,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 14:33:01,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 14:33:01,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 14:33:01,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 14:33:01,456 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 14:33:01,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 14:33:01,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 14:33:01,457 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 14:33:01,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 14:33:01,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 14:33:01,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 14:33:01,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 14:33:01,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 14:33:01,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 14:33:01,460 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 14:33:01,461 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 14:33:01,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 14:33:01,461 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 14:33:01,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 14:33:01,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 14:33:01,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 14:33:01,463 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 14:33:01,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 14:33:01,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 14:33:01,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 14:33:01,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 14:33:01,464 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 14:33:01,465 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 14:33:01,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 14:33:01,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 14:33:01,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 14:33:01,466 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 14:33:01,466 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 14:33:01,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 14:33:01,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 14:33:01,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 14:33:01,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 14:33:01,746 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 14:33:01,747 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 14:33:01,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/fib_safe-11.yml/witness.yml [2024-09-08 14:33:01,859 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 14:33:01,859 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 14:33:01,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/fib_safe-11.i [2024-09-08 14:33:03,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 14:33:03,535 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 14:33:03,536 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-11.i [2024-09-08 14:33:03,551 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/dabcfddae/e6da3e1306904a28ab95137c874ea3b6/FLAGb67a2295a [2024-09-08 14:33:03,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/dabcfddae/e6da3e1306904a28ab95137c874ea3b6 [2024-09-08 14:33:03,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 14:33:03,568 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 14:33:03,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 14:33:03,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 14:33:03,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 14:33:03,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 02:33:01" (1/2) ... [2024-09-08 14:33:03,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb0b927 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 02:33:03, skipping insertion in model container [2024-09-08 14:33:03,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 02:33:01" (1/2) ... [2024-09-08 14:33:03,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@9605436 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 02:33:03, skipping insertion in model container [2024-09-08 14:33:03,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:33:03" (2/2) ... [2024-09-08 14:33:03,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb0b927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:03, skipping insertion in model container [2024-09-08 14:33:03,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:33:03" (2/2) ... [2024-09-08 14:33:03,634 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 14:33:03,634 INFO L1541 ArrayList]: Location invariant before [L718-L718] (((((((i == 1) && (j == 0)) && (p == 0)) && (q == 0)) && (cur == 1)) && (prev == 0)) && (next == 0)) && (x == 0) [2024-09-08 14:33:03,635 INFO L1541 ArrayList]: Location invariant before [L689-L689] (1 <= i) && (1 <= j) [2024-09-08 14:33:03,635 INFO L1541 ArrayList]: Location invariant before [L724-L724] (1 <= i) && (1 <= j) [2024-09-08 14:33:03,635 INFO L1541 ArrayList]: Location invariant before [L697-L697] (1 <= i) && (1 <= j) [2024-09-08 14:33:03,636 INFO L1541 ArrayList]: Location invariant before [L715-L715] (((((((i == 0) && (j == 0)) && (p == 0)) && (q == 0)) && (cur == 1)) && (prev == 0)) && (next == 0)) && (x == 0) [2024-09-08 14:33:03,712 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 14:33:04,044 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-11.i[30241,30254] [2024-09-08 14:33:04,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 14:33:04,083 INFO L200 MainTranslator]: Completed pre-run [2024-09-08 14:33:04,118 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-11.i[30241,30254] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 14:33:04,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 14:33:04,208 INFO L204 MainTranslator]: Completed translation [2024-09-08 14:33:04,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04 WrapperNode [2024-09-08 14:33:04,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 14:33:04,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 14:33:04,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 14:33:04,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 14:33:04,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,257 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-09-08 14:33:04,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 14:33:04,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 14:33:04,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 14:33:04,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 14:33:04,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 14:33:04,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 14:33:04,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 14:33:04,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 14:33:04,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (1/1) ... [2024-09-08 14:33:04,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 14:33:04,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:04,354 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 14:33:04,360 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 14:33:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-08 14:33:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-08 14:33:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-08 14:33:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-08 14:33:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 14:33:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 14:33:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 14:33:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 14:33:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 14:33:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 14:33:04,418 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 14:33:04,554 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 14:33:04,557 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 14:33:04,794 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 14:33:04,794 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 14:33:04,912 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 14:33:04,913 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-08 14:33:04,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:33:04 BoogieIcfgContainer [2024-09-08 14:33:04,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 14:33:04,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 14:33:04,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 14:33:04,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 14:33:04,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 02:33:01" (1/4) ... [2024-09-08 14:33:04,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd6916d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 02:33:04, skipping insertion in model container [2024-09-08 14:33:04,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 02:33:03" (2/4) ... [2024-09-08 14:33:04,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd6916d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 02:33:04, skipping insertion in model container [2024-09-08 14:33:04,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:04" (3/4) ... [2024-09-08 14:33:04,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd6916d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 02:33:04, skipping insertion in model container [2024-09-08 14:33:04,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:33:04" (4/4) ... [2024-09-08 14:33:04,926 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-11.i [2024-09-08 14:33:04,946 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 14:33:04,946 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-08 14:33:04,946 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 14:33:04,980 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-09-08 14:33:05,019 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 14:33:05,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 14:33:05,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:05,022 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 14:33:05,025 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 14:33:05,067 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 14:33:05,091 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2024-09-08 14:33:05,099 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;@7b8ef41c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 14:33:05,100 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 14:33:05,211 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 14:33:05,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:05,217 INFO L85 PathProgramCache]: Analyzing trace with hash 315772146, now seen corresponding path program 1 times [2024-09-08 14:33:05,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:05,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043600641] [2024-09-08 14:33:05,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:05,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:05,668 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 14:33:05,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:05,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043600641] [2024-09-08 14:33:05,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043600641] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:05,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 14:33:05,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 14:33:05,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860568312] [2024-09-08 14:33:05,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:05,677 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 14:33:05,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:05,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 14:33:05,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 14:33:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:05,705 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:05,706 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14:33:05,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:05,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:05,796 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 14:33:05,796 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 14:33:05,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:05,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1835280151, now seen corresponding path program 1 times [2024-09-08 14:33:05,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:05,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94246715] [2024-09-08 14:33:05,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:05,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:05,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:05,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94246715] [2024-09-08 14:33:05,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94246715] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:05,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 14:33:05,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 14:33:05,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735621111] [2024-09-08 14:33:05,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:05,986 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 14:33:05,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:05,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 14:33:05,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-08 14:33:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:05,988 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:05,988 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 14:33:05,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:05,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:06,069 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 14:33:06,069 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 14:33:06,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:06,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1057715220, now seen corresponding path program 1 times [2024-09-08 14:33:06,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:06,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131386257] [2024-09-08 14:33:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:06,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:06,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:06,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131386257] [2024-09-08 14:33:06,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131386257] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:33:06,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525523555] [2024-09-08 14:33:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:06,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:06,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:06,196 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 14:33:06,198 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 14:33:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:06,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 14:33:06,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:33:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:06,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 14:33:06,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525523555] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:06,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 14:33:06,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-09-08 14:33:06,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294649612] [2024-09-08 14:33:06,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:06,471 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 14:33:06,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:06,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 14:33:06,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-08 14:33:06,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:06,472 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:06,473 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 14:33:06,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:06,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:06,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:07,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:07,071 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-09-08 14:33:07,093 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 14:33:07,277 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 14:33:07,285 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-09-08 14:33:07,287 INFO L312 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was SAFE (1/3) [2024-09-08 14:33:07,291 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 14:33:07,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 14:33:07,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:07,293 INFO L229 MonitoredProcess]: Starting monitored process 4 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 14:33:07,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-09-08 14:33:07,299 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 14:33:07,301 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 14:33:07,302 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;@7b8ef41c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 14:33:07,303 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-08 14:33:07,304 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:07,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:07,307 INFO L85 PathProgramCache]: Analyzing trace with hash 9101, now seen corresponding path program 1 times [2024-09-08 14:33:07,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:07,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138231977] [2024-09-08 14:33:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:07,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:07,400 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 14:33:07,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:07,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138231977] [2024-09-08 14:33:07,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138231977] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:07,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 14:33:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-08 14:33:07,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252729706] [2024-09-08 14:33:07,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:07,404 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 14:33:07,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:07,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 14:33:07,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 14:33:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:07,405 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:07,405 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 14:33:07,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:07,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:07,413 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-08 14:33:07,414 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:07,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:07,414 INFO L85 PathProgramCache]: Analyzing trace with hash 282403, now seen corresponding path program 1 times [2024-09-08 14:33:07,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:07,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737596155] [2024-09-08 14:33:07,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:07,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:07,520 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 14:33:07,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:07,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737596155] [2024-09-08 14:33:07,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737596155] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:07,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 14:33:07,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 14:33:07,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409455160] [2024-09-08 14:33:07,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:07,522 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 14:33:07,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:07,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 14:33:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 14:33:07,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:07,523 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:07,523 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 14:33:07,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:07,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:07,666 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-08 14:33:07,667 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:07,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1768133360, now seen corresponding path program 1 times [2024-09-08 14:33:07,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:07,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323365879] [2024-09-08 14:33:07,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:07,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:07,774 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 14:33:07,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:07,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323365879] [2024-09-08 14:33:07,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323365879] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:07,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 14:33:07,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 14:33:07,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402678502] [2024-09-08 14:33:07,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:07,776 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 14:33:07,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:07,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 14:33:07,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 14:33:07,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:07,777 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:07,779 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 14:33:07,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:07,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:07,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:07,840 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-08 14:33:07,841 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:07,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:07,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1527341765, now seen corresponding path program 1 times [2024-09-08 14:33:07,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:07,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758859640] [2024-09-08 14:33:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:07,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 14:33:07,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:07,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758859640] [2024-09-08 14:33:07,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758859640] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:07,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 14:33:07,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 14:33:07,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900295210] [2024-09-08 14:33:07,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:07,929 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 14:33:07,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:07,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 14:33:07,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-08 14:33:07,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:07,931 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:07,931 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 14:33:07,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:07,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:07,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:07,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:08,002 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-08 14:33:08,002 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:08,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:08,003 INFO L85 PathProgramCache]: Analyzing trace with hash -617439478, now seen corresponding path program 1 times [2024-09-08 14:33:08,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:08,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635803133] [2024-09-08 14:33:08,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:08,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:08,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:08,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635803133] [2024-09-08 14:33:08,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635803133] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:33:08,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553070491] [2024-09-08 14:33:08,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:08,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:08,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:08,057 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 14:33:08,059 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 14:33:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:08,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 14:33:08,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:33:08,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:08,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 14:33:08,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553070491] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:08,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 14:33:08,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2024-09-08 14:33:08,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543715928] [2024-09-08 14:33:08,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:08,247 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 14:33:08,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:08,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 14:33:08,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-08 14:33:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:08,249 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:08,249 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 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 14:33:08,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:08,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:08,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:08,363 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 14:33:08,546 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:08,546 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:08,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:08,547 INFO L85 PathProgramCache]: Analyzing trace with hash 52262193, now seen corresponding path program 1 times [2024-09-08 14:33:08,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:08,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780192436] [2024-09-08 14:33:08,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:08,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:08,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:08,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780192436] [2024-09-08 14:33:08,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780192436] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:33:08,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67350350] [2024-09-08 14:33:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:08,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:08,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:08,623 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 14:33:08,625 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 14:33:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:08,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-08 14:33:08,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:33:08,736 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:08,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:33:08,783 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:08,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67350350] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:33:08,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:33:08,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-08 14:33:08,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696069769] [2024-09-08 14:33:08,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:33:08,785 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-08 14:33:08,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:08,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-08 14:33:08,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-08 14:33:08,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:08,788 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:08,788 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 14:33:08,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:08,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:08,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:08,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:08,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:08,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:08,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:08,930 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 14:33:09,115 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,SelfDestructingSolverStorable8 [2024-09-08 14:33:09,116 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:09,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:09,116 INFO L85 PathProgramCache]: Analyzing trace with hash -768086606, now seen corresponding path program 2 times [2024-09-08 14:33:09,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:09,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137802903] [2024-09-08 14:33:09,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:09,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:09,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:09,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137802903] [2024-09-08 14:33:09,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137802903] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:33:09,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424100429] [2024-09-08 14:33:09,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 14:33:09,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:09,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:09,298 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 14:33:09,299 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 14:33:09,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 14:33:09,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 14:33:09,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 14:33:09,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:33:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:09,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:33:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:09,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424100429] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:33:09,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:33:09,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-09-08 14:33:09,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663137713] [2024-09-08 14:33:09,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:33:09,630 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-08 14:33:09,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:09,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-08 14:33:09,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-08 14:33:09,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:09,634 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:09,634 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 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 14:33:09,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:09,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:09,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:09,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:09,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:09,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:09,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:33:09,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-08 14:33:10,071 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-08 14:33:10,071 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:10,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:10,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2144558414, now seen corresponding path program 3 times [2024-09-08 14:33:10,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:10,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698275895] [2024-09-08 14:33:10,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:10,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:10,563 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 735 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:10,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:10,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698275895] [2024-09-08 14:33:10,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698275895] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:33:10,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933589146] [2024-09-08 14:33:10,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 14:33:10,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:10,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:10,566 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 14:33:10,568 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 14:33:10,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-09-08 14:33:10,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 14:33:10,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 14:33:10,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:33:10,855 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 735 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:10,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:33:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 735 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:11,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933589146] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:33:11,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:33:11,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 27 [2024-09-08 14:33:11,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500612470] [2024-09-08 14:33:11,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:33:11,257 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-08 14:33:11,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:11,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-08 14:33:11,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2024-09-08 14:33:11,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:11,263 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:11,264 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.111111111111111) internal successors, (192), 27 states have internal predecessors, (192), 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 14:33:11,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:11,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:11,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:11,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:11,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:11,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:11,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:33:11,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:33:11,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:33:11,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-08 14:33:11,791 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,SelfDestructingSolverStorable10 [2024-09-08 14:33:11,792 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:11,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:11,792 INFO L85 PathProgramCache]: Analyzing trace with hash -632861454, now seen corresponding path program 4 times [2024-09-08 14:33:11,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:11,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690799953] [2024-09-08 14:33:11,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:11,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 1889 proven. 211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:14,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:14,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690799953] [2024-09-08 14:33:14,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690799953] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:33:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082877423] [2024-09-08 14:33:14,398 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 14:33:14,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:14,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:14,400 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 14:33:14,402 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 14:33:14,547 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 14:33:14,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 14:33:14,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-08 14:33:14,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:33:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 1476 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-09-08 14:33:14,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 14:33:14,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082877423] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:14,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 14:33:14,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [53] total 65 [2024-09-08 14:33:14,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075016885] [2024-09-08 14:33:14,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:14,989 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 14:33:14,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:14,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 14:33:14,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1279, Invalid=2881, Unknown=0, NotChecked=0, Total=4160 [2024-09-08 14:33:14,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:14,992 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:14,992 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 14:33:14,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:14,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:14,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:14,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:14,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:14,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:14,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:33:14,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:33:14,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:15,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:33:15,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:33:15,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:33:15,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-08 14:33:15,461 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:15,463 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:15,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash 716016239, now seen corresponding path program 1 times [2024-09-08 14:33:15,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:15,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139805682] [2024-09-08 14:33:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:15,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 1275 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:16,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:16,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139805682] [2024-09-08 14:33:16,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139805682] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:33:16,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002165817] [2024-09-08 14:33:16,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:16,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:16,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:16,273 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 14:33:16,274 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 14:33:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:16,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-08 14:33:16,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:33:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 1025 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-09-08 14:33:16,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 14:33:16,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002165817] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 14:33:16,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 14:33:16,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [27] total 28 [2024-09-08 14:33:16,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438380383] [2024-09-08 14:33:16,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 14:33:16,503 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 14:33:16,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:16,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 14:33:16,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=402, Unknown=0, NotChecked=0, Total=756 [2024-09-08 14:33:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:16,507 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:16,508 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:33:16,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:16,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:33:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:33:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:33:16,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:33:16,807 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 14:33:16,992 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:16,993 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:33:16,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:33:16,994 INFO L85 PathProgramCache]: Analyzing trace with hash 460089240, now seen corresponding path program 1 times [2024-09-08 14:33:16,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:33:16,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192822816] [2024-09-08 14:33:16,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:16,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:33:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:21,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:33:21,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192822816] [2024-09-08 14:33:21,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192822816] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:33:21,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822180206] [2024-09-08 14:33:21,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:33:21,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:33:21,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:33:21,267 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 14:33:21,269 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 14:33:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:33:21,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-09-08 14:33:21,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:33:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 78 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:25,420 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:33:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:33:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822180206] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:33:30,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:33:30,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-09-08 14:33:30,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740623839] [2024-09-08 14:33:30,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:33:30,454 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-09-08 14:33:30,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:33:30,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-09-08 14:33:30,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2162, Invalid=22330, Unknown=0, NotChecked=0, Total=24492 [2024-09-08 14:33:30,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:33:30,465 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:33:30,466 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 157 states have (on average 2.031847133757962) internal successors, (319), 156 states have internal predecessors, (319), 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 14:33:30,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:33:30,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:30,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:33:30,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:33:30,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:33:30,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:33:30,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:33:30,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:33:30,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:33:30,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:33:30,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:34:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:34:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:34:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:34:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:34:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:34:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:34:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:34:09,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:34:09,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:34:09,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:34:09,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2024-09-08 14:34:09,355 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 14:34:09,543 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,SelfDestructingSolverStorable13 [2024-09-08 14:34:09,543 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:34:09,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:34:09,544 INFO L85 PathProgramCache]: Analyzing trace with hash 616086540, now seen corresponding path program 2 times [2024-09-08 14:34:09,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:34:09,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370423509] [2024-09-08 14:34:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:34:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:34:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:34:12,969 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:34:12,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:34:12,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370423509] [2024-09-08 14:34:12,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370423509] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:34:12,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171829871] [2024-09-08 14:34:12,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 14:34:12,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:34:12,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:34:12,971 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 14:34:12,972 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 14:34:13,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 14:34:13,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 14:34:13,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-09-08 14:34:13,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:34:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 66 proven. 586 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:34:16,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:34:21,646 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:34:21,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171829871] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:34:21,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:34:21,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-09-08 14:34:21,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58069899] [2024-09-08 14:34:21,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:34:21,648 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-09-08 14:34:21,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:34:21,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-09-08 14:34:21,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2105, Invalid=22387, Unknown=0, NotChecked=0, Total=24492 [2024-09-08 14:34:21,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:34:21,655 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:34:21,655 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 157 states have (on average 2.031847133757962) internal successors, (319), 156 states have internal predecessors, (319), 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 14:34:21,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:34:21,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:34:21,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:34:21,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:34:21,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:34:21,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:34:21,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:34:21,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:34:21,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:34:21,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:34:21,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2024-09-08 14:34:21,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:35:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2024-09-08 14:35:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2024-09-08 14:35:33,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-08 14:35:33,440 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:35:33,440 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:35:33,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:35:33,441 INFO L85 PathProgramCache]: Analyzing trace with hash 793507736, now seen corresponding path program 3 times [2024-09-08 14:35:33,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:35:33,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503790486] [2024-09-08 14:35:33,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:35:33,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:35:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:35:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:35:36,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:35:36,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503790486] [2024-09-08 14:35:36,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503790486] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:35:36,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111663624] [2024-09-08 14:35:36,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 14:35:36,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:35:36,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:35:36,602 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 14:35:36,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-08 14:35:36,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-09-08 14:35:36,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 14:35:36,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-09-08 14:35:36,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:35:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 78 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:35:40,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:35:45,029 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:35:45,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111663624] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:35:45,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:35:45,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-09-08 14:35:45,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188416602] [2024-09-08 14:35:45,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:35:45,031 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-09-08 14:35:45,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:35:45,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-09-08 14:35:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2133, Invalid=22359, Unknown=0, NotChecked=0, Total=24492 [2024-09-08 14:35:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:35:45,036 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:35:45,037 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 157 states have (on average 2.031847133757962) internal successors, (319), 156 states have internal predecessors, (319), 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 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 186 states. [2024-09-08 14:35:45,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2024-09-08 14:36:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 245 states. [2024-09-08 14:36:53,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-08 14:36:54,077 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-08 14:36:54,077 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:36:54,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:36:54,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2047229224, now seen corresponding path program 4 times [2024-09-08 14:36:54,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:36:54,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780218754] [2024-09-08 14:36:54,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:36:54,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:36:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:36:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:36:57,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:36:57,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780218754] [2024-09-08 14:36:57,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780218754] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:36:57,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137115491] [2024-09-08 14:36:57,079 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 14:36:57,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:36:57,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:36:57,081 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 14:36:57,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-08 14:36:57,177 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 14:36:57,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 14:36:57,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-09-08 14:36:57,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:37:00,745 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 66 proven. 586 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:37:00,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:37:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:37:05,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137115491] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:37:05,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:37:05,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 155 [2024-09-08 14:37:05,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664906409] [2024-09-08 14:37:05,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:37:05,349 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2024-09-08 14:37:05,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:37:05,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2024-09-08 14:37:05,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2064, Invalid=21806, Unknown=0, NotChecked=0, Total=23870 [2024-09-08 14:37:05,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:37:05,352 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:37:05,353 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 2.0516129032258066) internal successors, (318), 155 states have internal predecessors, (318), 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 14:37:05,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:37:05,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:37:05,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:37:05,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:37:05,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:37:05,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:37:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:37:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:37:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:37:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:37:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2024-09-08 14:37:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2024-09-08 14:37:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 245 states. [2024-09-08 14:37:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:39:00,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:39:00,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:39:00,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:39:00,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:39:00,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:39:00,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:39:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:39:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:39:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:39:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:39:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 325 states. [2024-09-08 14:39:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2024-09-08 14:39:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2024-09-08 14:39:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2024-09-08 14:39:00,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-08 14:39:00,955 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-08 14:39:00,956 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:39:00,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:39:00,956 INFO L85 PathProgramCache]: Analyzing trace with hash 306074206, now seen corresponding path program 5 times [2024-09-08 14:39:00,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:39:00,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991429864] [2024-09-08 14:39:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:39:00,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:39:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:39:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:39:03,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:39:03,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991429864] [2024-09-08 14:39:03,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991429864] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:39:03,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570301928] [2024-09-08 14:39:03,716 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 14:39:03,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:39:03,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:39:03,717 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 14:39:03,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-08 14:39:03,814 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-09-08 14:39:03,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 14:39:03,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-09-08 14:39:03,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:39:07,461 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 66 proven. 586 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:39:07,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:39:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:39:11,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570301928] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:39:11,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:39:11,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-09-08 14:39:11,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942243100] [2024-09-08 14:39:11,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:39:11,965 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-09-08 14:39:11,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:39:11,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-09-08 14:39:11,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2118, Invalid=22374, Unknown=0, NotChecked=0, Total=24492 [2024-09-08 14:39:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:39:11,970 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:39:11,970 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 157 states have (on average 2.031847133757962) internal successors, (319), 156 states have internal predecessors, (319), 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 14:39:11,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:39:11,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:39:11,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:39:11,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:39:11,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:39:11,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:39:11,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:39:11,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:39:11,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:39:11,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:39:11,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 325 states. [2024-09-08 14:39:11,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 249 states. [2024-09-08 14:39:11,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2024-09-08 14:39:11,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2024-09-08 14:39:11,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:43:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:43:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:43:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:43:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:43:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:43:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:43:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:43:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:43:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:43:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:43:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 413 states. [2024-09-08 14:43:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 390 states. [2024-09-08 14:43:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 406 states. [2024-09-08 14:43:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2024-09-08 14:43:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2024-09-08 14:43:27,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-08 14:43:28,156 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-08 14:43:28,156 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:43:28,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:43:28,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1156782440, now seen corresponding path program 6 times [2024-09-08 14:43:28,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:43:28,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776573727] [2024-09-08 14:43:28,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:43:28,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:43:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:43:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:43:30,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:43:30,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776573727] [2024-09-08 14:43:30,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776573727] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:43:30,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904879113] [2024-09-08 14:43:30,914 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 14:43:30,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:43:30,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:43:30,915 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 14:43:30,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-08 14:43:31,010 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-09-08 14:43:31,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 14:43:31,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-09-08 14:43:31,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:43:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 78 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:43:34,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:43:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:43:39,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904879113] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:43:39,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:43:39,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-09-08 14:43:39,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735705594] [2024-09-08 14:43:39,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:43:39,192 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-09-08 14:43:39,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:43:39,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-09-08 14:43:39,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2186, Invalid=22306, Unknown=0, NotChecked=0, Total=24492 [2024-09-08 14:43:39,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:43:39,195 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:43:39,196 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 157 states have (on average 2.031847133757962) internal successors, (319), 156 states have internal predecessors, (319), 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 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 413 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 390 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 406 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 318 states. [2024-09-08 14:43:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:45:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:45:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:45:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:45:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:45:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:45:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:45:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:45:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:45:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:45:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:45:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 430 states. [2024-09-08 14:45:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 418 states. [2024-09-08 14:45:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 411 states. [2024-09-08 14:45:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 269 states. [2024-09-08 14:45:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2024-09-08 14:45:32,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2024-09-08 14:45:32,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-08 14:45:32,707 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:45:32,707 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 14:45:32,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 14:45:32,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1743443864, now seen corresponding path program 7 times [2024-09-08 14:45:32,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 14:45:32,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927371368] [2024-09-08 14:45:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 14:45:32,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 14:45:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:45:35,220 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:45:35,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 14:45:35,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927371368] [2024-09-08 14:45:35,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927371368] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 14:45:35,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354023694] [2024-09-08 14:45:35,221 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-08 14:45:35,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 14:45:35,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 14:45:35,222 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 14:45:35,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-08 14:45:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 14:45:35,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-09-08 14:45:35,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 14:45:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 78 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:45:38,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 14:45:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 14:45:43,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354023694] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 14:45:43,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 14:45:43,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-09-08 14:45:43,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219798713] [2024-09-08 14:45:43,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 14:45:43,387 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-09-08 14:45:43,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 14:45:43,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-09-08 14:45:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2153, Invalid=22339, Unknown=0, NotChecked=0, Total=24492 [2024-09-08 14:45:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 14:45:43,390 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 14:45:43,391 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 157 states have (on average 2.031847133757962) internal successors, (319), 156 states have internal predecessors, (319), 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 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 430 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 418 states. [2024-09-08 14:45:43,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 411 states. [2024-09-08 14:45:43,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 269 states. [2024-09-08 14:45:43,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 318 states. [2024-09-08 14:45:43,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2024-09-08 14:45:43,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15