./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.2024-08-08_07-59-58.files/mutex-meet-local/fib_safe-11.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee 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.2024-08-08_07-59-58.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.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-13 22:26:58,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 22:26:58,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-13 22:26:58,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 22:26:58,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 22:26:58,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 22:26:58,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 22:26:58,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 22:26:58,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 22:26:58,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 22:26:58,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 22:26:58,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 22:26:58,926 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 22:26:58,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 22:26:58,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 22:26:58,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 22:26:58,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-13 22:26:58,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 22:26:58,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 22:26:58,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 22:26:58,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 22:26:58,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 22:26:58,934 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 22:26:58,934 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 22:26:58,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 22:26:58,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 22:26:58,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 22:26:58,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 22:26:58,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 22:26:58,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 22:26:58,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 22:26:58,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 22:26:58,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 22:26:58,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 22:26:58,937 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-13 22:26:58,941 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 22:26:58,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-13 22:26:58,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 22:26:58,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 22:26:58,941 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 22:26:58,942 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 22:26:58,943 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 22:26:58,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-13 22:26:59,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 22:26:59,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 22:26:59,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 22:26:59,255 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 22:26:59,256 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 22:26:59,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/fib_safe-11.i [2024-08-13 22:27:00,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 22:27:00,966 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 22:27:00,966 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-11.i [2024-08-13 22:27:00,986 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7f9eaabce/0339c11b96c64fb4a4e00b30baa1e7e1/FLAG5b3a34da9 [2024-08-13 22:27:01,283 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7f9eaabce/0339c11b96c64fb4a4e00b30baa1e7e1 [2024-08-13 22:27:01,286 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 22:27:01,286 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 22:27:01,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/fib_safe-11.yml/witness.yml [2024-08-13 22:27:01,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 22:27:01,427 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 22:27:01,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 22:27:01,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 22:27:01,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 22:27:01,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 10:27:01" (1/2) ... [2024-08-13 22:27:01,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebd4c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:27:01, skipping insertion in model container [2024-08-13 22:27:01,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 10:27:01" (1/2) ... [2024-08-13 22:27:01,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@188745a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 10:27:01, skipping insertion in model container [2024-08-13 22:27:01,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 10:27:01" (2/2) ... [2024-08-13 22:27:01,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebd4c80 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:01, skipping insertion in model container [2024-08-13 22:27:01,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 10:27:01" (2/2) ... [2024-08-13 22:27:01,439 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-13 22:27:01,492 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-13 22:27:01,494 INFO L97 edCorrectnessWitness]: Location invariant before [L724-L724] (1 <= i) && (1 <= j) [2024-08-13 22:27:01,494 INFO L97 edCorrectnessWitness]: Location invariant before [L697-L697] (1 <= i) && (1 <= j) [2024-08-13 22:27:01,495 INFO L97 edCorrectnessWitness]: Location invariant before [L715-L715] (((((((i == 0) && (j == 0)) && (p == 0)) && (q == 0)) && (cur == 1)) && (prev == 0)) && (next == 0)) && (x == 0) [2024-08-13 22:27:01,495 INFO L97 edCorrectnessWitness]: Location invariant before [L689-L689] (1 <= i) && (1 <= j) [2024-08-13 22:27:01,495 INFO L97 edCorrectnessWitness]: Location invariant before [L718-L718] (((((((i == 1) && (j == 0)) && (p == 0)) && (q == 0)) && (cur == 1)) && (prev == 0)) && (next == 0)) && (x == 0) [2024-08-13 22:27:01,532 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 22:27:01,874 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] [2024-08-13 22:27:01,902 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 22:27:01,910 INFO L202 MainTranslator]: Completed pre-run [2024-08-13 22:27:01,955 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 [2024-08-13 22:27:02,000 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 22:27:02,033 INFO L206 MainTranslator]: Completed translation [2024-08-13 22:27:02,034 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02 WrapperNode [2024-08-13 22:27:02,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 22:27:02,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-13 22:27:02,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-13 22:27:02,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-13 22:27:02,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,129 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-08-13 22:27:02,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-13 22:27:02,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-13 22:27:02,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-13 22:27:02,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-13 22:27:02,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-13 22:27:02,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-13 22:27:02,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-13 22:27:02,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-13 22:27:02,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (1/1) ... [2024-08-13 22:27:02,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 22:27:02,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:02,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-13 22:27:02,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-13 22:27:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-08-13 22:27:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-08-13 22:27:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-08-13 22:27:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-08-13 22:27:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-13 22:27:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-13 22:27:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-13 22:27:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-13 22:27:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-13 22:27:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-13 22:27:02,254 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-13 22:27:02,368 INFO L244 CfgBuilder]: Building ICFG [2024-08-13 22:27:02,370 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-13 22:27:02,553 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-13 22:27:02,553 INFO L293 CfgBuilder]: Performing block encoding [2024-08-13 22:27:02,675 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-13 22:27:02,676 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-08-13 22:27:02,676 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 10:27:02 BoogieIcfgContainer [2024-08-13 22:27:02,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-13 22:27:02,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-13 22:27:02,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-13 22:27:02,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-13 22:27:02,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 10:27:01" (1/4) ... [2024-08-13 22:27:02,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190e2ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 10:27:02, skipping insertion in model container [2024-08-13 22:27:02,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 10:27:01" (2/4) ... [2024-08-13 22:27:02,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190e2ef2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 10:27:02, skipping insertion in model container [2024-08-13 22:27:02,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 10:27:02" (3/4) ... [2024-08-13 22:27:02,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190e2ef2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 10:27:02, skipping insertion in model container [2024-08-13 22:27:02,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 10:27:02" (4/4) ... [2024-08-13 22:27:02,690 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-11.i [2024-08-13 22:27:02,709 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-13 22:27:02,710 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-08-13 22:27:02,710 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-13 22:27:02,747 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-13 22:27:02,793 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 22:27:02,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 22:27:02,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:02,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-13 22:27:02,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-13 22:27:02,832 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 22:27:02,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2024-08-13 22:27:02,850 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b8fb16b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 22:27:02,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-13 22:27:02,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-13 22:27:02,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:02,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1845228914, now seen corresponding path program 1 times [2024-08-13 22:27:02,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:02,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260069079] [2024-08-13 22:27:02,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:02,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:03,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:03,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260069079] [2024-08-13 22:27:03,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260069079] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:03,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 22:27:03,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 22:27:03,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472719834] [2024-08-13 22:27:03,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:03,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 22:27:03,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:03,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 22:27:03,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 22:27:03,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:03,355 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:03,356 INFO L496 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) [2024-08-13 22:27:03,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:03,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-13 22:27:03,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-13 22:27:03,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:03,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1553789527, now seen corresponding path program 1 times [2024-08-13 22:27:03,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:03,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782288311] [2024-08-13 22:27:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:03,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:03,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:03,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:03,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782288311] [2024-08-13 22:27:03,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782288311] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:03,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 22:27:03,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-13 22:27:03,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500687887] [2024-08-13 22:27:03,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:03,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-13 22:27:03,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:03,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-13 22:27:03,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-13 22:27:03,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:03,633 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:03,633 INFO L496 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) [2024-08-13 22:27:03,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:03,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:03,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:03,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:03,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-13 22:27:03,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-13 22:27:03,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:03,738 INFO L85 PathProgramCache]: Analyzing trace with hash -921440478, now seen corresponding path program 1 times [2024-08-13 22:27:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:03,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556623795] [2024-08-13 22:27:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:03,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:03,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:03,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556623795] [2024-08-13 22:27:03,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556623795] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:27:03,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661822711] [2024-08-13 22:27:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:03,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:03,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:03,881 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 22:27:03,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-13 22:27:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:03,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-13 22:27:03,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:27:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:04,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-13 22:27:04,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661822711] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:04,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-13 22:27:04,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2024-08-13 22:27:04,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714856166] [2024-08-13 22:27:04,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:04,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 22:27:04,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:04,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 22:27:04,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-08-13 22:27:04,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:04,186 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:04,186 INFO L496 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) [2024-08-13 22:27:04,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:04,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:04,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:04,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:04,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:04,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:04,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-08-13 22:27:04,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-13 22:27:05,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-08-13 22:27:05,053 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-08-13 22:27:05,056 INFO L308 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was SAFE (1/3) [2024-08-13 22:27:05,060 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 22:27:05,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 22:27:05,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:05,061 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) [2024-08-13 22:27:05,062 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 [2024-08-13 22:27:05,066 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 22:27:05,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 22:27:05,067 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b8fb16b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 22:27:05,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-08-13 22:27:05,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:05,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:05,068 INFO L85 PathProgramCache]: Analyzing trace with hash 8781, now seen corresponding path program 1 times [2024-08-13 22:27:05,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:05,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151472439] [2024-08-13 22:27:05,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:05,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:05,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:05,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151472439] [2024-08-13 22:27:05,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151472439] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:05,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 22:27:05,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-13 22:27:05,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302933197] [2024-08-13 22:27:05,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:05,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 22:27:05,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:05,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 22:27:05,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 22:27:05,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:05,157 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:05,157 INFO L496 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) [2024-08-13 22:27:05,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:05,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:05,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-13 22:27:05,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:05,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:05,170 INFO L85 PathProgramCache]: Analyzing trace with hash 272473, now seen corresponding path program 1 times [2024-08-13 22:27:05,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:05,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875157936] [2024-08-13 22:27:05,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:05,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:05,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:05,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:05,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875157936] [2024-08-13 22:27:05,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875157936] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:05,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 22:27:05,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 22:27:05,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902952652] [2024-08-13 22:27:05,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:05,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 22:27:05,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:05,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 22:27:05,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 22:27:05,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:05,280 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:05,280 INFO L496 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) [2024-08-13 22:27:05,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:05,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:05,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-13 22:27:05,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:05,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:05,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2075730704, now seen corresponding path program 1 times [2024-08-13 22:27:05,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:05,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732786691] [2024-08-13 22:27:05,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:05,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:05,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:05,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:05,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732786691] [2024-08-13 22:27:05,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732786691] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:05,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 22:27:05,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-13 22:27:05,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628392242] [2024-08-13 22:27:05,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:05,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 22:27:05,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:05,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 22:27:05,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 22:27:05,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:05,505 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:05,506 INFO L496 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) [2024-08-13 22:27:05,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:05,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:05,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:05,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:05,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-13 22:27:05,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:05,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1456891461, now seen corresponding path program 1 times [2024-08-13 22:27:05,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:05,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597270754] [2024-08-13 22:27:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:05,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-13 22:27:05,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:05,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597270754] [2024-08-13 22:27:05,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597270754] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:05,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 22:27:05,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-13 22:27:05,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412126855] [2024-08-13 22:27:05,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:05,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-13 22:27:05,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:05,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-13 22:27:05,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-13 22:27:05,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:05,658 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:05,659 INFO L496 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) [2024-08-13 22:27:05,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:05,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:05,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:05,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:05,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:05,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-13 22:27:05,733 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:05,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:05,733 INFO L85 PathProgramCache]: Analyzing trace with hash 836551872, now seen corresponding path program 1 times [2024-08-13 22:27:05,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:05,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916347908] [2024-08-13 22:27:05,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:05,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:05,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:05,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916347908] [2024-08-13 22:27:05,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916347908] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:27:05,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231591437] [2024-08-13 22:27:05,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:05,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:05,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:05,799 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 22:27:05,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-13 22:27:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:05,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-13 22:27:05,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:27:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:06,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-13 22:27:06,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231591437] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:06,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-13 22:27:06,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2024-08-13 22:27:06,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794330203] [2024-08-13 22:27:06,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:06,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 22:27:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:06,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 22:27:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-08-13 22:27:06,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:06,004 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:06,004 INFO L496 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) [2024-08-13 22:27:06,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:06,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:06,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:06,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:06,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:06,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:06,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-13 22:27:06,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:06,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:06,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:06,309 INFO L85 PathProgramCache]: Analyzing trace with hash -651501263, now seen corresponding path program 1 times [2024-08-13 22:27:06,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:06,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037372596] [2024-08-13 22:27:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:06,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:06,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:06,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037372596] [2024-08-13 22:27:06,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037372596] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:27:06,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743612850] [2024-08-13 22:27:06,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:06,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:06,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:06,392 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 22:27:06,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-13 22:27:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:06,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-13 22:27:06,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:27:06,507 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:06,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:27:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:06,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743612850] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:27:06,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:27:06,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-08-13 22:27:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748592507] [2024-08-13 22:27:06,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:27:06,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-13 22:27:06,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-13 22:27:06,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-08-13 22:27:06,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:06,561 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:06,561 INFO L496 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) [2024-08-13 22:27:06,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:06,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:06,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:06,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:06,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:06,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:06,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:06,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:06,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:06,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:06,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-13 22:27:06,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-08-13 22:27:06,889 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:06,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:06,889 INFO L85 PathProgramCache]: Analyzing trace with hash -43193240, now seen corresponding path program 2 times [2024-08-13 22:27:06,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:06,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741619829] [2024-08-13 22:27:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:06,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:07,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:07,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741619829] [2024-08-13 22:27:07,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741619829] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:27:07,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525995136] [2024-08-13 22:27:07,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-13 22:27:07,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:07,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:07,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 22:27:07,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-13 22:27:07,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-13 22:27:07,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 22:27:07,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-13 22:27:07,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:27:07,256 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:07,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:27:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:07,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525995136] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:27:07,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:27:07,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-08-13 22:27:07,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347825051] [2024-08-13 22:27:07,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:27:07,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-08-13 22:27:07,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:07,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-08-13 22:27:07,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-08-13 22:27:07,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:07,417 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:07,417 INFO L496 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) [2024-08-13 22:27:07,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:07,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:07,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:07,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:07,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:07,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:07,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:27:07,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-13 22:27:07,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-08-13 22:27:07,846 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:07,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:07,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1246624664, now seen corresponding path program 3 times [2024-08-13 22:27:07,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:07,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879301046] [2024-08-13 22:27:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:07,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 735 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:08,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:08,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879301046] [2024-08-13 22:27:08,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879301046] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:27:08,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381926653] [2024-08-13 22:27:08,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-13 22:27:08,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:08,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:08,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 22:27:08,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-13 22:27:08,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-08-13 22:27:08,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 22:27:08,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-13 22:27:08,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:27:08,572 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 735 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:08,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:27:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 735 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:08,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381926653] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:27:08,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:27:08,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 27 [2024-08-13 22:27:08,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233016482] [2024-08-13 22:27:08,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:27:08,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-08-13 22:27:08,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:08,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-08-13 22:27:08,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2024-08-13 22:27:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:08,960 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:08,960 INFO L496 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) [2024-08-13 22:27:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:27:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:09,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:09,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:09,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:27:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:27:09,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-08-13 22:27:09,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-08-13 22:27:09,501 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:09,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash 877666920, now seen corresponding path program 4 times [2024-08-13 22:27:09,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:09,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659753515] [2024-08-13 22:27:09,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:09,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:12,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 1889 proven. 211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:12,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:12,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659753515] [2024-08-13 22:27:12,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659753515] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:27:12,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691956147] [2024-08-13 22:27:12,197 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-13 22:27:12,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:12,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:12,199 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 22:27:12,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-13 22:27:12,350 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-13 22:27:12,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 22:27:12,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-13 22:27:12,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:27:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 1476 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-08-13 22:27:12,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-13 22:27:12,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691956147] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:12,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-13 22:27:12,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [53] total 65 [2024-08-13 22:27:12,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287699160] [2024-08-13 22:27:12,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:12,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-08-13 22:27:12,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:12,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-08-13 22:27:12,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1279, Invalid=2881, Unknown=0, NotChecked=0, Total=4160 [2024-08-13 22:27:12,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:12,846 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:12,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 22:27:12,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:12,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:12,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:12,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:12,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:12,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:12,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:27:12,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:27:12,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:27:13,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:27:13,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:27:13,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-08-13 22:27:13,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:13,333 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:13,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:13,334 INFO L85 PathProgramCache]: Analyzing trace with hash 651705839, now seen corresponding path program 1 times [2024-08-13 22:27:13,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:13,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933624548] [2024-08-13 22:27:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:13,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:14,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 1275 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:14,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:14,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933624548] [2024-08-13 22:27:14,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933624548] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:27:14,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955954787] [2024-08-13 22:27:14,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:14,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:14,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:14,076 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 22:27:14,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-13 22:27:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:14,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-13 22:27:14,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:27:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 1025 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-08-13 22:27:14,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-13 22:27:14,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955954787] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 22:27:14,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-13 22:27:14,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [27] total 28 [2024-08-13 22:27:14,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978665661] [2024-08-13 22:27:14,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 22:27:14,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-08-13 22:27:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:14,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-08-13 22:27:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=402, Unknown=0, NotChecked=0, Total=756 [2024-08-13 22:27:14,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:14,343 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:14,343 INFO L496 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) [2024-08-13 22:27:14,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:14,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:14,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:14,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:14,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:14,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:14,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:27:14,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:27:14,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:27:14,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:27:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:27:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:27:14,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:27:14,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-08-13 22:27:14,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:14,813 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:27:14,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:27:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2074361394, now seen corresponding path program 1 times [2024-08-13 22:27:14,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:27:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332666396] [2024-08-13 22:27:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:14,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:27:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:18,972 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:18,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:27:18,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332666396] [2024-08-13 22:27:18,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332666396] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:27:18,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920070859] [2024-08-13 22:27:18,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:27:18,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:27:18,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:27:18,976 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 22:27:18,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-13 22:27:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:27:19,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjunts are in the unsatisfiable core [2024-08-13 22:27:19,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:27:23,332 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 78 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:23,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:27:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:27:28,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920070859] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:27:28,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:27:28,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-08-13 22:27:28,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627770624] [2024-08-13 22:27:28,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:27:28,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-08-13 22:27:28,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:27:28,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-08-13 22:27:28,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2162, Invalid=22330, Unknown=0, NotChecked=0, Total=24492 [2024-08-13 22:27:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:27:28,633 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:27:28,634 INFO L496 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) [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:27:28,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:28:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:28:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:28:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:28:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:28:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:28:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:28:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:28:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:28:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:28:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:28:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2024-08-13 22:28:07,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-08-13 22:28:07,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-08-13 22:28:07,260 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:28:07,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:28:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1918364094, now seen corresponding path program 2 times [2024-08-13 22:28:07,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:28:07,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157542680] [2024-08-13 22:28:07,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:28:07,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:28:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:28:10,545 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:28:10,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:28:10,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157542680] [2024-08-13 22:28:10,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157542680] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:28:10,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743622509] [2024-08-13 22:28:10,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-13 22:28:10,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:28:10,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:28:10,547 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 22:28:10,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-13 22:28:10,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-13 22:28:10,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 22:28:10,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjunts are in the unsatisfiable core [2024-08-13 22:28:10,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:28:14,551 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 66 proven. 586 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:28:14,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:28:19,302 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:28:19,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743622509] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:28:19,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:28:19,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-08-13 22:28:19,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702406062] [2024-08-13 22:28:19,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:28:19,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-08-13 22:28:19,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:28:19,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-08-13 22:28:19,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2105, Invalid=22387, Unknown=0, NotChecked=0, Total=24492 [2024-08-13 22:28:19,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:28:19,312 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:28:19,312 INFO L496 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) [2024-08-13 22:28:19,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2024-08-13 22:28:19,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:29:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:29:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:29:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:29:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:29:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:29:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:29:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:29:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:29:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:29:32,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:29:32,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2024-08-13 22:29:32,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2024-08-13 22:29:32,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-08-13 22:29:32,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:29:32,217 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:29:32,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:29:32,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1740942898, now seen corresponding path program 3 times [2024-08-13 22:29:32,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:29:32,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721053822] [2024-08-13 22:29:32,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:29:32,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:29:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:29:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:29:35,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:29:35,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721053822] [2024-08-13 22:29:35,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721053822] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:29:35,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582967868] [2024-08-13 22:29:35,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-13 22:29:35,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:29:35,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:29:35,272 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) [2024-08-13 22:29:35,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-13 22:29:35,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-08-13 22:29:35,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 22:29:35,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjunts are in the unsatisfiable core [2024-08-13 22:29:35,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:29:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 78 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:29:39,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:29:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:29:43,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582967868] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:29:43,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:29:43,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-08-13 22:29:43,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604798040] [2024-08-13 22:29:43,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:29:43,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-08-13 22:29:43,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:29:43,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-08-13 22:29:43,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2133, Invalid=22359, Unknown=0, NotChecked=0, Total=24492 [2024-08-13 22:29:43,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:29:43,829 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:29:43,830 INFO L496 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) [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 251 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 186 states. [2024-08-13 22:29:43,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:30:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:30:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:30:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:30:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:30:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:30:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:30:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:30:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:30:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:30:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:30:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2024-08-13 22:30:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2024-08-13 22:30:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 245 states. [2024-08-13 22:30:52,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-08-13 22:30:52,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-08-13 22:30:52,446 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:30:52,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:30:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash -286712562, now seen corresponding path program 4 times [2024-08-13 22:30:52,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:30:52,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815315474] [2024-08-13 22:30:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:30:52,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:30:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:30:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:30:55,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:30:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815315474] [2024-08-13 22:30:55,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815315474] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:30:55,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570990016] [2024-08-13 22:30:55,385 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-13 22:30:55,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:30:55,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:30:55,387 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) [2024-08-13 22:30:55,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-13 22:30:55,481 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-13 22:30:55,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 22:30:55,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjunts are in the unsatisfiable core [2024-08-13 22:30:55,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:30:59,087 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 66 proven. 586 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:30:59,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:31:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:31:03,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570990016] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:31:03,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:31:03,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 155 [2024-08-13 22:31:03,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973621135] [2024-08-13 22:31:03,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:31:03,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2024-08-13 22:31:03,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:31:03,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2024-08-13 22:31:03,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2064, Invalid=21806, Unknown=0, NotChecked=0, Total=23870 [2024-08-13 22:31:03,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:31:03,650 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:31:03,651 INFO L496 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) [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 245 states. [2024-08-13 22:31:03,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:32:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:32:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:32:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:32:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:32:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:32:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:32:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:32:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:32:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:32:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:32:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 325 states. [2024-08-13 22:32:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2024-08-13 22:32:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2024-08-13 22:32:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2024-08-13 22:32:58,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-08-13 22:32:58,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-08-13 22:32:58,753 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:32:58,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:32:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2066590868, now seen corresponding path program 5 times [2024-08-13 22:32:58,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:32:58,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986787780] [2024-08-13 22:32:58,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:32:58,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:32:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:33:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:33:01,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:33:01,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986787780] [2024-08-13 22:33:01,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986787780] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:33:01,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612959904] [2024-08-13 22:33:01,500 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-13 22:33:01,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:33:01,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:33:01,502 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) [2024-08-13 22:33:01,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-13 22:33:01,598 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-08-13 22:33:01,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 22:33:01,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjunts are in the unsatisfiable core [2024-08-13 22:33:01,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:33:05,256 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 66 proven. 586 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:33:05,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:33:09,844 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:33:09,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612959904] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:33:09,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:33:09,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-08-13 22:33:09,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910389355] [2024-08-13 22:33:09,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:33:09,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-08-13 22:33:09,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:33:09,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-08-13 22:33:09,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2118, Invalid=22374, Unknown=0, NotChecked=0, Total=24492 [2024-08-13 22:33:09,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:33:09,849 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:33:09,849 INFO L496 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) [2024-08-13 22:33:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:33:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:33:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 325 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 249 states. [2024-08-13 22:33:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2024-08-13 22:33:09,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2024-08-13 22:33:09,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:37:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:37:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:37:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:37:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:37:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:37:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:37:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:37:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:37:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:37:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:37:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 413 states. [2024-08-13 22:37:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 390 states. [2024-08-13 22:37:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 406 states. [2024-08-13 22:37:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2024-08-13 22:37:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2024-08-13 22:37:29,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-08-13 22:37:29,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-08-13 22:37:29,208 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:37:29,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:37:29,208 INFO L85 PathProgramCache]: Analyzing trace with hash 603734222, now seen corresponding path program 6 times [2024-08-13 22:37:29,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:37:29,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14570227] [2024-08-13 22:37:29,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:37:29,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:37:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:37:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:37:31,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:37:31,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14570227] [2024-08-13 22:37:31,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14570227] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:37:31,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555313113] [2024-08-13 22:37:31,811 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-13 22:37:31,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:37:31,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:37:31,812 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) [2024-08-13 22:37:31,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-08-13 22:37:31,908 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-08-13 22:37:31,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 22:37:31,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjunts are in the unsatisfiable core [2024-08-13 22:37:31,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:37:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 78 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:37:35,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:37:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:37:40,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555313113] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:37:40,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:37:40,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-08-13 22:37:40,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634551974] [2024-08-13 22:37:40,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:37:40,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-08-13 22:37:40,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:37:40,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-08-13 22:37:40,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2186, Invalid=22306, Unknown=0, NotChecked=0, Total=24492 [2024-08-13 22:37:40,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:37:40,216 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:37:40,217 INFO L496 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) [2024-08-13 22:37:40,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:37:40,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:37:40,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:37:40,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:37:40,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:37:40,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:37:40,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:37:40,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:37:40,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:37:40,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:37:40,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 413 states. [2024-08-13 22:37:40,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 390 states. [2024-08-13 22:37:40,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 406 states. [2024-08-13 22:37:40,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2024-08-13 22:37:40,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 318 states. [2024-08-13 22:37:40,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:39:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:39:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:39:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:39:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:39:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:39:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:39:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:39:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:39:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:39:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:39:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 430 states. [2024-08-13 22:39:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 418 states. [2024-08-13 22:39:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 411 states. [2024-08-13 22:39:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 269 states. [2024-08-13 22:39:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2024-08-13 22:39:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2024-08-13 22:39:32,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-08-13 22:39:32,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:39:32,694 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-13 22:39:32,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 22:39:32,694 INFO L85 PathProgramCache]: Analyzing trace with hash -791006770, now seen corresponding path program 7 times [2024-08-13 22:39:32,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 22:39:32,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515957544] [2024-08-13 22:39:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 22:39:32,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 22:39:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:39:35,300 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:39:35,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 22:39:35,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515957544] [2024-08-13 22:39:35,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515957544] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 22:39:35,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829374129] [2024-08-13 22:39:35,301 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-08-13 22:39:35,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 22:39:35,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 22:39:35,303 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) [2024-08-13 22:39:35,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-08-13 22:39:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 22:39:35,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 105 conjunts are in the unsatisfiable core [2024-08-13 22:39:35,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 22:39:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 78 proven. 574 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:39:38,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 22:39:43,628 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 22:39:43,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829374129] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 22:39:43,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 22:39:43,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2024-08-13 22:39:43,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111676818] [2024-08-13 22:39:43,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 22:39:43,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-08-13 22:39:43,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 22:39:43,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-08-13 22:39:43,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2153, Invalid=22339, Unknown=0, NotChecked=0, Total=24492 [2024-08-13 22:39:43,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 22:39:43,632 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 22:39:43,632 INFO L496 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) [2024-08-13 22:39:43,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-13 22:39:43,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 430 states. [2024-08-13 22:39:43,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 418 states. [2024-08-13 22:39:43,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 411 states. [2024-08-13 22:39:43,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 269 states. [2024-08-13 22:39:43,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 318 states. [2024-08-13 22:39:43,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2024-08-13 22:39:43,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15