./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.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/26_stack_cas_longest-2.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7bc0c755 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-ext/26_stack_cas_longest-2.i ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/26_stack_cas_longest-2.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-23 04:35:54,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 04:35:54,537 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 04:35:54,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 04:35:54,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 04:35:54,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 04:35:54,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 04:35:54,556 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 04:35:54,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 04:35:54,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 04:35:54,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 04:35:54,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 04:35:54,558 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 04:35:54,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 04:35:54,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 04:35:54,559 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 04:35:54,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 04:35:54,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 04:35:54,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 04:35:54,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 04:35:54,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 04:35:54,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 04:35:54,563 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 04:35:54,563 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 04:35:54,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 04:35:54,563 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 04:35:54,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 04:35:54,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 04:35:54,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 04:35:54,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 04:35:54,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 04:35:54,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 04:35:54,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 04:35:54,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 04:35:54,565 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 04:35:54,565 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 04:35:54,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 04:35:54,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 04:35:54,566 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 04:35:54,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 04:35:54,566 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 04:35:54,571 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 04:35:54,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-23 04:35:54,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 04:35:54,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 04:35:54,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 04:35:54,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 04:35:54,828 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 04:35:54,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2024-08-23 04:35:56,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 04:35:56,603 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 04:35:56,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2024-08-23 04:35:56,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d9c09072c/38198ed917db48d7b3c78afcc5278088/FLAG33cd019bb [2024-08-23 04:35:56,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d9c09072c/38198ed917db48d7b3c78afcc5278088 [2024-08-23 04:35:56,646 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 04:35:56,648 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 04:35:56,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/26_stack_cas_longest-2.yml/witness.yml [2024-08-23 04:35:56,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 04:35:56,704 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 04:35:56,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 04:35:56,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 04:35:56,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 04:35:56,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 04:35:56" (1/2) ... [2024-08-23 04:35:56,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5afe13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:35:56, skipping insertion in model container [2024-08-23 04:35:56,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 04:35:56" (1/2) ... [2024-08-23 04:35:56,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1593f626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:35:56, skipping insertion in model container [2024-08-23 04:35:56,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 04:35:56" (2/2) ... [2024-08-23 04:35:56,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5afe13 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:56, skipping insertion in model container [2024-08-23 04:35:56,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 04:35:56" (2/2) ... [2024-08-23 04:35:56,714 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-23 04:35:56,737 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-23 04:35:56,738 INFO L97 edCorrectnessWitness]: Location invariant before [L751-L751] (m == 0 || m == 1) && (m2 == 0 || m2 == 1) [2024-08-23 04:35:56,777 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 04:35:57,043 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-ext/26_stack_cas_longest-2.i[31306,31319] [2024-08-23 04:35:57,054 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 04:35:57,062 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-08-23 04:35:57,135 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-ext/26_stack_cas_longest-2.i[31306,31319] [2024-08-23 04:35:57,140 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 04:35:57,175 INFO L206 MainTranslator]: Completed translation [2024-08-23 04:35:57,176 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57 WrapperNode [2024-08-23 04:35:57,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 04:35:57,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 04:35:57,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 04:35:57,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 04:35:57,183 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 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,197 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 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,223 INFO L138 Inliner]: procedures = 179, calls = 50, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 202 [2024-08-23 04:35:57,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 04:35:57,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 04:35:57,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 04:35:57,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 04:35:57,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 04:35:57,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 04:35:57,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 04:35:57,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 04:35:57,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (1/1) ... [2024-08-23 04:35:57,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 04:35:57,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:35:57,284 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) [2024-08-23 04:35:57,291 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 [2024-08-23 04:35:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-23 04:35:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-08-23 04:35:57,320 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-08-23 04:35:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-23 04:35:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-23 04:35:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 04:35:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-23 04:35:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-23 04:35:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 04:35:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-23 04:35:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 04:35:57,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 04:35:57,324 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-23 04:35:57,453 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 04:35:57,455 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 04:35:57,737 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 04:35:57,737 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 04:35:57,969 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 04:35:57,969 INFO L319 CfgBuilder]: Removed 3 assume(true) statements. [2024-08-23 04:35:57,970 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 04:35:57 BoogieIcfgContainer [2024-08-23 04:35:57,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 04:35:57,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 04:35:57,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 04:35:57,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 04:35:57,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 04:35:56" (1/4) ... [2024-08-23 04:35:57,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d76949f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 04:35:57, skipping insertion in model container [2024-08-23 04:35:57,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 04:35:56" (2/4) ... [2024-08-23 04:35:57,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d76949f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 04:35:57, skipping insertion in model container [2024-08-23 04:35:57,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:35:57" (3/4) ... [2024-08-23 04:35:57,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d76949f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 04:35:57, skipping insertion in model container [2024-08-23 04:35:57,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 04:35:57" (4/4) ... [2024-08-23 04:35:57,978 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-2.i [2024-08-23 04:35:58,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 04:35:58,002 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-23 04:35:58,002 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 04:35:58,064 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-23 04:35:58,142 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 04:35:58,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 04:35:58,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:35:58,150 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) [2024-08-23 04:35:58,152 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 [2024-08-23 04:35:58,188 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 04:35:58,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-08-23 04:35:58,205 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;@7620c89b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 04:35:58,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-23 04:35:58,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:35:58,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:35:58,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1928716273, now seen corresponding path program 1 times [2024-08-23 04:35:58,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:35:58,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725877926] [2024-08-23 04:35:58,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:35:58,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:35:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:35:58,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:35:58,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:35:58,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725877926] [2024-08-23 04:35:58,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725877926] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:35:58,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:35:58,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 04:35:58,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628770557] [2024-08-23 04:35:58,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:35:58,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 04:35:58,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:35:58,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 04:35:58,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 04:35:58,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:35:58,653 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:35:58,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 04:35:58,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:35:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:35:58,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 04:35:58,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:35:58,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:35:58,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1474161368, now seen corresponding path program 1 times [2024-08-23 04:35:58,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:35:58,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984647380] [2024-08-23 04:35:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:35:58,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:35:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:35:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:35:59,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:35:59,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984647380] [2024-08-23 04:35:59,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984647380] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:35:59,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903695992] [2024-08-23 04:35:59,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:35:59,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:35:59,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:35:59,121 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) [2024-08-23 04:35:59,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-23 04:35:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:35:59,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 14 conjunts are in the unsatisfiable core [2024-08-23 04:35:59,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:35:59,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-08-23 04:35:59,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:35:59,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:35:59,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:35:59,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-08-23 04:35:59,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:35:59,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 04:35:59,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903695992] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:35:59,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 04:35:59,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2024-08-23 04:35:59,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059871361] [2024-08-23 04:35:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:35:59,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 04:35:59,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:35:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 04:35:59,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-08-23 04:35:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:35:59,591 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:35:59,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2024-08-23 04:35:59,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:35:59,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:35:59,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:35:59,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:35:59,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-08-23 04:35:59,856 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,SelfDestructingSolverStorable1 [2024-08-23 04:35:59,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:35:59,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:35:59,858 INFO L85 PathProgramCache]: Analyzing trace with hash -919099778, now seen corresponding path program 1 times [2024-08-23 04:35:59,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:35:59,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016592220] [2024-08-23 04:35:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:35:59,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:35:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:35:59,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 04:35:59,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:35:59,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016592220] [2024-08-23 04:35:59,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016592220] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:35:59,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:35:59,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-23 04:35:59,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789357548] [2024-08-23 04:35:59,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:35:59,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 04:35:59,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:35:59,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 04:35:59,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-23 04:35:59,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:35:59,949 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:35:59,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-08-23 04:35:59,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:35:59,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:35:59,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:00,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:00,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:00,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-23 04:36:00,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:00,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:00,028 INFO L85 PathProgramCache]: Analyzing trace with hash -919098753, now seen corresponding path program 1 times [2024-08-23 04:36:00,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:00,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099871321] [2024-08-23 04:36:00,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:00,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:00,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:00,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099871321] [2024-08-23 04:36:00,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099871321] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:00,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938823791] [2024-08-23 04:36:00,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:00,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:00,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:00,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:36:00,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-23 04:36:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:00,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 25 conjunts are in the unsatisfiable core [2024-08-23 04:36:00,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:00,577 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-23 04:36:00,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-23 04:36:00,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-08-23 04:36:00,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:00,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:00,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:00,895 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:00,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2024-08-23 04:36:00,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2024-08-23 04:36:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:01,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938823791] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:01,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:01,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6] total 21 [2024-08-23 04:36:01,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510917113] [2024-08-23 04:36:01,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:01,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-08-23 04:36:01,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:01,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-08-23 04:36:01,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=431, Unknown=1, NotChecked=0, Total=506 [2024-08-23 04:36:01,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:01,091 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:01,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.090909090909091) internal successors, (68), 22 states have internal predecessors, (68), 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) [2024-08-23 04:36:01,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:01,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:01,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:01,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:01,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:01,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:01,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:01,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-23 04:36:01,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-23 04:36:01,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:01,842 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:01,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:01,843 INFO L85 PathProgramCache]: Analyzing trace with hash 463514911, now seen corresponding path program 1 times [2024-08-23 04:36:01,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:01,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83389189] [2024-08-23 04:36:01,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:01,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:01,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:01,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83389189] [2024-08-23 04:36:01,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83389189] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:01,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386018014] [2024-08-23 04:36:01,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:01,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:01,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:01,915 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) [2024-08-23 04:36:01,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-23 04:36:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:02,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core [2024-08-23 04:36:02,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:02,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:02,118 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:02,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386018014] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:02,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:02,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-08-23 04:36:02,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930196933] [2024-08-23 04:36:02,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:02,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-23 04:36:02,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:02,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-23 04:36:02,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-08-23 04:36:02,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:02,121 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:02,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-08-23 04:36:02,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:02,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:02,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:02,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-08-23 04:36:02,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:02,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 04:36:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:02,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-23 04:36:02,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:02,452 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:02,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:02,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1014366888, now seen corresponding path program 1 times [2024-08-23 04:36:02,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:02,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948125981] [2024-08-23 04:36:02,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:02,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:02,949 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:02,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:02,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948125981] [2024-08-23 04:36:02,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948125981] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:02,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147954508] [2024-08-23 04:36:02,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:02,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:02,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:02,955 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) [2024-08-23 04:36:02,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-23 04:36:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:03,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 27 conjunts are in the unsatisfiable core [2024-08-23 04:36:03,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:03,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-08-23 04:36:03,181 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-23 04:36:03,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-23 04:36:03,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:03,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:03,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:03,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:03,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:03,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2024-08-23 04:36:03,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:03,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:03,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:03,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:03,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:03,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-08-23 04:36:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:03,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:03,487 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_228 (Array Int Int)) (|~#m~0.offset| Int)) (or (= (select (select (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_228) |c_~#m2~0.base|) |c_~#m2~0.offset|) 1) (= (select (select (store |c_#memory_int| |c_~#m~0.base| (store v_ArrVal_228 |~#m~0.offset| 0)) |c_~#m2~0.base|) |c_~#m2~0.offset|) 0))) is different from false [2024-08-23 04:36:03,598 WARN L854 $PredicateComparison]: unable to prove that (and (or (not (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select (select |c_#memory_int| |c_~#top~0.base|) |c_~#top~0.offset|))) (= |c_~#top~0.base| |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base|) (forall ((v_ArrVal_228 (Array Int Int)) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int)) (|~#m~0.offset| Int)) (let ((.cse0 (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_4) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_5))) (or (= (select (select (store .cse0 |c_~#m~0.base| (store v_ArrVal_228 |~#m~0.offset| 0)) |c_~#m2~0.base|) |c_~#m2~0.offset|) 0) (= (select (select (store .cse0 |c_~#m~0.base| v_ArrVal_228) |c_~#m2~0.base|) |c_~#m2~0.offset|) 1))))) (forall ((v_DerPreprocessor_3 (Array Int Int)) (v_ArrVal_228 (Array Int Int)) (|~#m~0.offset| Int)) (let ((.cse1 (store |c_#memory_int| |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_3))) (or (= (select (select (store .cse1 |c_~#m~0.base| v_ArrVal_228) |c_~#m2~0.base|) |c_~#m2~0.offset|) 1) (= 0 (select (select (store .cse1 |c_~#m~0.base| (store v_ArrVal_228 |~#m~0.offset| 0)) |c_~#m2~0.base|) |c_~#m2~0.offset|)))))) is different from false [2024-08-23 04:36:03,642 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_3 (Array Int Int)) (v_ArrVal_228 (Array Int Int)) (|~#m~0.offset| Int)) (let ((.cse0 (store |c_#memory_int| |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_3))) (or (= (select (select (store .cse0 |c_~#m~0.base| v_ArrVal_228) |c_~#m2~0.base|) |c_~#m2~0.offset|) 1) (= 0 (select (select (store .cse0 |c_~#m~0.base| (store v_ArrVal_228 |~#m~0.offset| 0)) |c_~#m2~0.base|) |c_~#m2~0.offset|))))) (or (= |c_~#top~0.base| |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base|) (forall ((v_ArrVal_228 (Array Int Int)) (v_DerPreprocessor_5 (Array Int Int)) (v_DerPreprocessor_4 (Array Int Int)) (|~#m~0.offset| Int)) (let ((.cse1 (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_4) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_5))) (or (= (select (select (store .cse1 |c_~#m~0.base| (store v_ArrVal_228 |~#m~0.offset| 0)) |c_~#m2~0.base|) |c_~#m2~0.offset|) 0) (= (select (select (store .cse1 |c_~#m~0.base| v_ArrVal_228) |c_~#m2~0.base|) |c_~#m2~0.offset|) 1)))))) is different from false [2024-08-23 04:36:03,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:03,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 44 [2024-08-23 04:36:03,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1547 treesize of output 1495 [2024-08-23 04:36:03,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 217 [2024-08-23 04:36:03,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 85 [2024-08-23 04:36:03,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 101 [2024-08-23 04:36:04,177 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:04,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 38 [2024-08-23 04:36:04,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 169 [2024-08-23 04:36:04,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 72 [2024-08-23 04:36:04,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2024-08-23 04:36:04,409 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2024-08-23 04:36:04,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147954508] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:04,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:04,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 21 [2024-08-23 04:36:04,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534238304] [2024-08-23 04:36:04,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:04,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-08-23 04:36:04,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:04,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-08-23 04:36:04,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=296, Unknown=4, NotChecked=114, Total=506 [2024-08-23 04:36:04,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:04,415 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:04,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.636363636363637) internal successors, (102), 22 states have internal predecessors, (102), 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) [2024-08-23 04:36:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 04:36:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:04,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:04,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-23 04:36:04,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:04,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 04:36:04,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-23 04:36:05,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-08-23 04:36:05,165 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:05,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:05,165 INFO L85 PathProgramCache]: Analyzing trace with hash 690009631, now seen corresponding path program 1 times [2024-08-23 04:36:05,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:05,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437280168] [2024-08-23 04:36:05,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:05,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-23 04:36:05,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437280168] [2024-08-23 04:36:05,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437280168] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296550569] [2024-08-23 04:36:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:05,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:05,918 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) [2024-08-23 04:36:05,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-23 04:36:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:06,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 28 conjunts are in the unsatisfiable core [2024-08-23 04:36:06,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:06,344 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-08-23 04:36:06,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-08-23 04:36:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:06,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:06,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296550569] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:06,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:06,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 7] total 27 [2024-08-23 04:36:06,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563956965] [2024-08-23 04:36:06,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:06,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-08-23 04:36:06,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:06,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-08-23 04:36:06,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=712, Unknown=3, NotChecked=0, Total=812 [2024-08-23 04:36:06,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:06,730 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:06,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.357142857142857) internal successors, (150), 28 states have internal predecessors, (150), 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) [2024-08-23 04:36:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:06,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:06,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-08-23 04:36:06,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:06,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 04:36:06,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:08,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-23 04:36:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 04:36:08,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-08-23 04:36:08,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-23 04:36:08,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:08,624 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:08,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:08,624 INFO L85 PathProgramCache]: Analyzing trace with hash 831512496, now seen corresponding path program 1 times [2024-08-23 04:36:08,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:08,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806667398] [2024-08-23 04:36:08,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:08,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:08,822 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-08-23 04:36:08,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:08,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806667398] [2024-08-23 04:36:08,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806667398] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:08,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:08,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 04:36:08,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916164178] [2024-08-23 04:36:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:08,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 04:36:08,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:08,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 04:36:08,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 04:36:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:08,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:08,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-08-23 04:36:08,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:08,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:08,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:08,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-08-23 04:36:08,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:08,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 04:36:08,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-08-23 04:36:08,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-23 04:36:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 04:36:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-08-23 04:36:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:09,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-08-23 04:36:09,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-23 04:36:09,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-23 04:36:09,828 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-08-23 04:36:09,829 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE,SAFE (1/2) [2024-08-23 04:36:09,831 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 04:36:09,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 04:36:09,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:09,833 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-23 04:36:09,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-08-23 04:36:09,836 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 04:36:09,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 04:36:09,836 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;@7620c89b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 04:36:09,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-23 04:36:09,886 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 04:36:09,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:09,887 INFO L85 PathProgramCache]: Analyzing trace with hash 515972878, now seen corresponding path program 1 times [2024-08-23 04:36:09,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:09,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966062832] [2024-08-23 04:36:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:09,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:09,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:09,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966062832] [2024-08-23 04:36:09,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966062832] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:09,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:09,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 04:36:09,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135146384] [2024-08-23 04:36:09,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:09,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 04:36:09,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:09,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 04:36:09,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 04:36:09,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:09,909 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:09,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 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) [2024-08-23 04:36:09,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:09,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-08-23 04:36:09,927 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 04:36:09,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:09,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1339246667, now seen corresponding path program 1 times [2024-08-23 04:36:09,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:09,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404359373] [2024-08-23 04:36:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:09,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 04:36:09,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-23 04:36:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 04:36:09,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-23 04:36:09,973 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-23 04:36:09,973 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-08-23 04:36:09,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-08-23 04:36:09,975 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-23 04:36:09,976 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2024-08-23 04:36:09,976 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-23 04:36:09,977 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-08-23 04:36:10,022 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-23 04:36:10,024 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 04:36:10,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 04:36:10,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:10,026 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-23 04:36:10,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-08-23 04:36:10,029 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 04:36:10,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 04:36:10,029 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;@7620c89b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 04:36:10,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-23 04:36:10,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 04:36:10,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2116720034, now seen corresponding path program 1 times [2024-08-23 04:36:10,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:10,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838438230] [2024-08-23 04:36:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:10,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 04:36:10,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838438230] [2024-08-23 04:36:10,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838438230] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:10,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:10,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 04:36:10,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235476994] [2024-08-23 04:36:10,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:10,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 04:36:10,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:10,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 04:36:10,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 04:36:10,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:10,206 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:10,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2024-08-23 04:36:10,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:10,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-08-23 04:36:10,282 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 04:36:10,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:10,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1997116807, now seen corresponding path program 1 times [2024-08-23 04:36:10,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:10,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773473022] [2024-08-23 04:36:10,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:10,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:10,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:10,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773473022] [2024-08-23 04:36:10,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773473022] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:10,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9194281] [2024-08-23 04:36:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:10,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:10,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:10,345 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) [2024-08-23 04:36:10,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-23 04:36:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:10,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2024-08-23 04:36:10,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:10,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:10,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9194281] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:10,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:10,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-08-23 04:36:10,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052993031] [2024-08-23 04:36:10,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:10,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-23 04:36:10,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:10,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-23 04:36:10,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-08-23 04:36:10,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:10,538 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:10,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 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) [2024-08-23 04:36:10,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:10,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:10,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:10,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-08-23 04:36:10,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:10,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 04:36:10,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:10,787 INFO L85 PathProgramCache]: Analyzing trace with hash 648194847, now seen corresponding path program 1 times [2024-08-23 04:36:10,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:10,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364594765] [2024-08-23 04:36:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 04:36:10,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:10,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364594765] [2024-08-23 04:36:10,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364594765] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:10,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:10,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 04:36:10,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237896179] [2024-08-23 04:36:10,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:10,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 04:36:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:10,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 04:36:10,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 04:36:10,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:10,864 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:10,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-08-23 04:36:10,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:10,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:10,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:10,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-23 04:36:10,910 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 04:36:10,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:10,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1339218685, now seen corresponding path program 1 times [2024-08-23 04:36:10,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:10,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670475725] [2024-08-23 04:36:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:10,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:11,069 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:11,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:11,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670475725] [2024-08-23 04:36:11,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670475725] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:11,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799198187] [2024-08-23 04:36:11,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:11,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:11,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:11,072 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) [2024-08-23 04:36:11,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-23 04:36:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:11,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 29 conjunts are in the unsatisfiable core [2024-08-23 04:36:11,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:11,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-08-23 04:36:11,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:11,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:11,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:11,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-08-23 04:36:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:11,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:11,552 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:11,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2024-08-23 04:36:11,563 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_~state~0 0))) (and (or (forall ((v_arrayElimArr_5 (Array Int Int)) (|~#m2~0.offset| Int)) (or (not (= (select v_arrayElimArr_5 |~#m2~0.offset|) 0)) (= (select (select (store |c_#memory_int| |c_~#m2~0.base| v_arrayElimArr_5) |c_~#m~0.base|) |c_~#m~0.offset|) 0))) .cse0) (or (forall ((|~#m2~0.offset| Int) (v_ArrVal_582 (Array Int Int)) (v_DerPreprocessor_8 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_8) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_582) |c_~#top~0.base| v_DerPreprocessor_8) |c_~#m2~0.base|) |~#m2~0.offset| 0)) |c_~#m~0.base|) |c_~#m~0.offset|) 0)) (not .cse0)))) is different from false [2024-08-23 04:36:11,609 WARN L854 $PredicateComparison]: unable to prove that (or (= |c_thr1Thread1of2ForFork0_push_~newTop~0#1| 0) (let ((.cse0 (= c_~state~0 0))) (and (or (forall ((v_arrayElimArr_5 (Array Int Int)) (|~#m2~0.offset| Int)) (or (not (= (select v_arrayElimArr_5 |~#m2~0.offset|) 0)) (= (select (select (store |c_#memory_int| |c_~#m2~0.base| v_arrayElimArr_5) |c_~#m~0.base|) |c_~#m~0.offset|) 0))) .cse0) (or (forall ((|~#m2~0.offset| Int) (v_ArrVal_582 (Array Int Int)) (v_DerPreprocessor_8 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_8) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_582) |c_~#top~0.base| v_DerPreprocessor_8) |c_~#m2~0.base|) |~#m2~0.offset| 0)) |c_~#m~0.base|) |c_~#m~0.offset|) 0)) (not .cse0))))) is different from false [2024-08-23 04:36:11,628 WARN L854 $PredicateComparison]: unable to prove that (or (= |c_thr1Thread1of2ForFork0_index_malloc_~curr_alloc_idx~0#1| 0) (let ((.cse0 (= c_~state~0 0))) (and (or (forall ((v_arrayElimArr_5 (Array Int Int)) (|~#m2~0.offset| Int)) (or (not (= (select v_arrayElimArr_5 |~#m2~0.offset|) 0)) (= (select (select (store |c_#memory_int| |c_~#m2~0.base| v_arrayElimArr_5) |c_~#m~0.base|) |c_~#m~0.offset|) 0))) .cse0) (or (forall ((|~#m2~0.offset| Int) (v_ArrVal_582 (Array Int Int)) (v_DerPreprocessor_8 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_8) |c_~#m2~0.base| (store (select (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_582) |c_~#top~0.base| v_DerPreprocessor_8) |c_~#m2~0.base|) |~#m2~0.offset| 0)) |c_~#m~0.base|) |c_~#m~0.offset|) 0)) (not .cse0))))) is different from false [2024-08-23 04:36:11,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:11,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 33 [2024-08-23 04:36:11,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 194 [2024-08-23 04:36:11,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2024-08-23 04:36:11,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 86 [2024-08-23 04:36:11,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:11,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2024-08-23 04:36:11,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-08-23 04:36:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-08-23 04:36:11,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799198187] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:11,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:11,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 10] total 22 [2024-08-23 04:36:11,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099573761] [2024-08-23 04:36:11,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:11,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-08-23 04:36:11,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:11,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-08-23 04:36:11,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=283, Unknown=8, NotChecked=114, Total=506 [2024-08-23 04:36:11,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:11,818 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:11,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.652173913043478) internal successors, (84), 22 states have internal predecessors, (84), 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) [2024-08-23 04:36:11,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:11,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:11,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:11,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:12,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 04:36:12,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-08-23 04:36:12,420 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 [2024-08-23 04:36:12,421 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 04:36:12,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:12,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1045634526, now seen corresponding path program 1 times [2024-08-23 04:36:12,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:12,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528570858] [2024-08-23 04:36:12,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:12,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 04:36:12,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:12,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528570858] [2024-08-23 04:36:12,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528570858] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:12,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:12,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-23 04:36:12,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413345124] [2024-08-23 04:36:12,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:12,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 04:36:12,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:12,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 04:36:12,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-23 04:36:12,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:12,535 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:12,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-08-23 04:36:12,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:12,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:12,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:12,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 04:36:12,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:12,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 04:36:12,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:12,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-08-23 04:36:12,672 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 04:36:12,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:12,672 INFO L85 PathProgramCache]: Analyzing trace with hash 830233542, now seen corresponding path program 1 times [2024-08-23 04:36:12,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:12,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611593626] [2024-08-23 04:36:12,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:12,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:13,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:13,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611593626] [2024-08-23 04:36:13,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611593626] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:13,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048114841] [2024-08-23 04:36:13,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:13,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:13,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:13,041 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) [2024-08-23 04:36:13,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-23 04:36:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:13,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 34 conjunts are in the unsatisfiable core [2024-08-23 04:36:13,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:13,351 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-23 04:36:13,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-08-23 04:36:13,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-08-23 04:36:13,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:13,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:13,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:13,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2024-08-23 04:36:13,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2024-08-23 04:36:13,825 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:13,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048114841] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:13,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:13,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 27 [2024-08-23 04:36:13,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473249234] [2024-08-23 04:36:13,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:13,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-08-23 04:36:13,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:13,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-08-23 04:36:13,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=628, Unknown=5, NotChecked=0, Total=756 [2024-08-23 04:36:13,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:13,827 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:13,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 27 states have internal predecessors, (97), 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) [2024-08-23 04:36:13,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:13,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:13,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:13,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-23 04:36:13,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:13,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-23 04:36:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:14,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-23 04:36:14,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-08-23 04:36:14,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:14,521 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 04:36:14,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:14,521 INFO L85 PathProgramCache]: Analyzing trace with hash -977220921, now seen corresponding path program 1 times [2024-08-23 04:36:14,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:14,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095521872] [2024-08-23 04:36:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:14,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 04:36:14,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-23 04:36:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 04:36:14,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-23 04:36:14,605 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-23 04:36:14,606 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-08-23 04:36:14,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-08-23 04:36:14,608 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-08-23 04:36:14,609 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2024-08-23 04:36:14,609 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-23 04:36:14,609 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-08-23 04:36:14,665 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-23 04:36:14,669 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 04:36:14,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 04:36:14,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:14,673 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-23 04:36:14,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2024-08-23 04:36:14,677 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 04:36:14,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2024-08-23 04:36:14,679 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;@7620c89b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 04:36:14,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-23 04:36:15,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:15,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1848737655, now seen corresponding path program 1 times [2024-08-23 04:36:15,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:15,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294331355] [2024-08-23 04:36:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:15,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:15,186 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-23 04:36:15,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:15,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294331355] [2024-08-23 04:36:15,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294331355] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:15,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:15,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 04:36:15,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119332814] [2024-08-23 04:36:15,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:15,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 04:36:15,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:15,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 04:36:15,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 04:36:15,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:15,189 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:15,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 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) [2024-08-23 04:36:15,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:15,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:15,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-08-23 04:36:15,254 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:15,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:15,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1109725145, now seen corresponding path program 1 times [2024-08-23 04:36:15,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:15,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790512130] [2024-08-23 04:36:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:15,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 04:36:15,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:15,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790512130] [2024-08-23 04:36:15,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790512130] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:15,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85750328] [2024-08-23 04:36:15,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:15,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:15,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:15,316 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) [2024-08-23 04:36:15,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-23 04:36:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:15,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 3 conjunts are in the unsatisfiable core [2024-08-23 04:36:15,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:15,542 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 04:36:15,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 04:36:15,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85750328] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:15,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:15,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-08-23 04:36:15,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150935208] [2024-08-23 04:36:15,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:15,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-23 04:36:15,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:15,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-23 04:36:15,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-08-23 04:36:15,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:15,585 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:15,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 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) [2024-08-23 04:36:15,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:15,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:15,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:15,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:15,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-08-23 04:36:15,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:15,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:15,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:15,892 INFO L85 PathProgramCache]: Analyzing trace with hash -179797097, now seen corresponding path program 1 times [2024-08-23 04:36:15,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:15,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335716679] [2024-08-23 04:36:15,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:15,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:16,007 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-08-23 04:36:16,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:16,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335716679] [2024-08-23 04:36:16,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335716679] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:16,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:16,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 04:36:16,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260225971] [2024-08-23 04:36:16,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:16,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 04:36:16,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:16,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 04:36:16,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 04:36:16,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:16,010 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:16,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 04:36:16,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:16,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:16,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:16,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:16,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-08-23 04:36:16,199 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:16,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1501270155, now seen corresponding path program 1 times [2024-08-23 04:36:16,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:16,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719917682] [2024-08-23 04:36:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-23 04:36:16,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:16,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719917682] [2024-08-23 04:36:16,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719917682] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:16,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:16,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-23 04:36:16,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148960908] [2024-08-23 04:36:16,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:16,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 04:36:16,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:16,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 04:36:16,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-23 04:36:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:16,332 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:16,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2024-08-23 04:36:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:16,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:16,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:16,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:16,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:16,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:16,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-08-23 04:36:16,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:16,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:16,503 INFO L85 PathProgramCache]: Analyzing trace with hash -550371274, now seen corresponding path program 1 times [2024-08-23 04:36:16,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:16,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323728377] [2024-08-23 04:36:16,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:16,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:17,055 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 04:36:17,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:17,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323728377] [2024-08-23 04:36:17,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323728377] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:17,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855959025] [2024-08-23 04:36:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:17,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:17,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:17,057 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) [2024-08-23 04:36:17,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-23 04:36:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:17,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 27 conjunts are in the unsatisfiable core [2024-08-23 04:36:17,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:17,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-08-23 04:36:17,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:17,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:17,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:17,545 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:17,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:17,603 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int)) (or (= (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1025) |c_~#m~0.base|) |c_~#m~0.offset|) 0) (not (= (select v_ArrVal_1025 |~#m2~0.offset|) 0)))) is different from false [2024-08-23 04:36:17,648 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_~state~0 0))) (and (or .cse0 (forall ((v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int)) (or (= (select (select (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1025) |c_~#m~0.base|) |c_~#m~0.offset|) 0) (not (= (select v_ArrVal_1025 |~#m2~0.offset|) 0))))) (or (forall ((v_ArrVal_1025 (Array Int Int)) (|~#m2~0.offset| Int) (v_DerPreprocessor_12 (Array Int Int))) (or (not (= (select v_ArrVal_1025 |~#m2~0.offset|) 0)) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_12) |c_~#m2~0.base| v_ArrVal_1025) |c_~#m~0.base|) |c_~#m~0.offset|) 0))) (not .cse0)))) is different from false [2024-08-23 04:36:17,851 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:17,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2024-08-23 04:36:17,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-08-23 04:36:17,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:17,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2024-08-23 04:36:17,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 110 [2024-08-23 04:36:17,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2024-08-23 04:36:17,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:17,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2024-08-23 04:36:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2024-08-23 04:36:18,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855959025] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:18,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:18,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 27 [2024-08-23 04:36:18,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327521761] [2024-08-23 04:36:18,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:18,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-08-23 04:36:18,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:18,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-08-23 04:36:18,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=536, Unknown=13, NotChecked=98, Total=756 [2024-08-23 04:36:18,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:18,044 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:18,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 27 states have internal predecessors, (151), 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) [2024-08-23 04:36:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:19,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 04:36:19,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-08-23 04:36:19,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:19,756 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:19,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:19,757 INFO L85 PathProgramCache]: Analyzing trace with hash 769458014, now seen corresponding path program 1 times [2024-08-23 04:36:19,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:19,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988814792] [2024-08-23 04:36:19,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:19,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-23 04:36:19,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:19,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988814792] [2024-08-23 04:36:19,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988814792] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:19,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:19,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-23 04:36:19,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425123269] [2024-08-23 04:36:19,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:19,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 04:36:19,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:19,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 04:36:19,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-23 04:36:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:19,880 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:19,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-08-23 04:36:19,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:19,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:19,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 04:36:19,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 04:36:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:20,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-08-23 04:36:20,133 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:20,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:20,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2027055465, now seen corresponding path program 1 times [2024-08-23 04:36:20,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:20,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013547550] [2024-08-23 04:36:20,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:20,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:20,636 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 04:36:20,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:20,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013547550] [2024-08-23 04:36:20,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013547550] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:20,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121164965] [2024-08-23 04:36:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:20,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:20,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:20,639 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) [2024-08-23 04:36:20,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-08-23 04:36:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:20,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 58 conjunts are in the unsatisfiable core [2024-08-23 04:36:20,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:21,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:21,484 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-08-23 04:36:21,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2024-08-23 04:36:21,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:21,612 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-08-23 04:36:21,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 31 [2024-08-23 04:36:21,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:21,810 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-08-23 04:36:21,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 31 [2024-08-23 04:36:22,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:36:22,045 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-08-23 04:36:22,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 34 [2024-08-23 04:36:22,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2024-08-23 04:36:22,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-08-23 04:36:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:22,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:22,397 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse0 (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1195))) (store .cse0 |c_~#top~0.base| (store (select .cse0 |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_push_~newTop~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2024-08-23 04:36:22,430 WARN L854 $PredicateComparison]: unable to prove that (and (or (not (= c_~state~0 0)) (forall ((v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base| (store (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_push_~newTop~0#1|)) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (forall ((v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse0 (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1195))) (store .cse0 |c_~#top~0.base| (store (select .cse0 |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_push_~newTop~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) is different from false [2024-08-23 04:36:22,473 WARN L854 $PredicateComparison]: unable to prove that (and (or (not (= c_~state~0 0)) (forall ((v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (store (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base| (store (select (store (store |c_#memory_int| |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_index_malloc_~curr_alloc_idx~0#1|)) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (forall ((v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse0 (store |c_#memory_int| |c_~#m2~0.base| v_ArrVal_1195))) (store .cse0 |c_~#top~0.base| (store (select .cse0 |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_index_malloc_~curr_alloc_idx~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) is different from false [2024-08-23 04:36:22,676 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:36:22,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 166 treesize of output 184 [2024-08-23 04:36:22,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 141 [2024-08-23 04:36:22,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 139 [2024-08-23 04:36:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2024-08-23 04:36:23,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121164965] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:23,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:23,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 22, 15] total 44 [2024-08-23 04:36:23,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374832326] [2024-08-23 04:36:23,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:23,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-08-23 04:36:23,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:23,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-08-23 04:36:23,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1543, Unknown=6, NotChecked=246, Total=1980 [2024-08-23 04:36:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:23,033 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:23,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.933333333333333) internal successors, (177), 44 states have internal predecessors, (177), 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) [2024-08-23 04:36:23,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:23,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:23,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:23,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:23,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 04:36:23,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:23,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:24,695 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse11 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse5 (select .cse11 |c_~#top~0.offset|))) (let ((.cse3 (= |c_thr1Thread2of3ForFork0_push_~oldTop~0#1| .cse5)) (.cse2 (forall ((v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| (store .cse11 |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_push_~newTop~0#1|)) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (.cse7 (= c_~state~0 1)) (.cse1 (not (= c_~state~0 0)))) (and (or (forall ((v_ArrVal_1192 (Array Int Int)) (v_DerPreprocessor_15 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23| Int) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (or (not (= (+ (select (select |c_#memory_int| |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23|) 0) 1) 0)) (not (= (select (select (store (let ((.cse0 (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192))) (store (store .cse0 |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base| (store (select (store (store .cse0 |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) .cse1) (= c_~next_alloc_idx~0 3) (or .cse2 (not .cse3)) (forall ((v_ArrVal_1192 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse4 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192) |c_~#m2~0.base| v_ArrVal_1195))) (store .cse4 |c_~#top~0.base| (store (select .cse4 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (= |c_~#top~0.offset| 0) (= |c_thr1Thread1of3ForFork0_push_~newTop~0#1| 1) (<= |c_~#m~0.base| 3) (or .cse3 (forall ((v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (not (= |c_thr1Thread1of3ForFork0_push_#res#1| 0)) (not (= .cse5 0)) .cse2 (or .cse1 (forall ((v_ArrVal_1192 (Array Int Int)) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse6 (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192))) (store (store .cse6 |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base| (store (select (store (store .cse6 |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_index_malloc_~curr_alloc_idx~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) .cse7 (or (and .cse7 |c_thr1Thread2of3ForFork0_#t~switch18#1|) (and (not .cse7) (not |c_thr1Thread2of3ForFork0_#t~switch18#1|))) (not (= (select |c_#valid| 4) 0)) (= 4 |c_~#top~0.base|) (<= 5 |c_~#m2~0.base|) (forall ((v_ArrVal_1192 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse8 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192) |c_~#m2~0.base| v_ArrVal_1195))) (store .cse8 |c_~#top~0.base| (store (select .cse8 |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_index_malloc_~curr_alloc_idx~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not (= c_~next_alloc_idx~0 0)) (<= 1 |c_thr1Thread1of3ForFork0_push_#res#1|) (or .cse1 (forall ((v_ArrVal_1192 (Array Int Int)) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse9 (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192))) (store (store .cse9 |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base| (store (select (store (store .cse9 |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (forall ((|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23| Int)) (or (not (= (+ (select (select |c_#memory_int| |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23|) 0) 1) 0)) (forall ((v_ArrVal_1192 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse10 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192) |c_~#m2~0.base| v_ArrVal_1195))) (store .cse10 |c_~#top~0.base| (store (select .cse10 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))))))) is different from false [2024-08-23 04:36:25,311 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse12 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse6 (select .cse12 |c_~#top~0.offset|))) (let ((.cse3 (= |c_thr1Thread2of3ForFork0_push_~oldTop~0#1| .cse6)) (.cse2 (forall ((v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| (store .cse12 |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_push_~newTop~0#1|)) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (.cse5 (= |c_~#top~0.offset| 0)) (.cse8 (= c_~next_alloc_idx~0 0)) (.cse1 (not (= c_~state~0 0)))) (and (or (forall ((v_ArrVal_1192 (Array Int Int)) (v_DerPreprocessor_15 (Array Int Int)) (|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23| Int) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (or (not (= (+ (select (select |c_#memory_int| |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23|) 0) 1) 0)) (not (= (select (select (store (let ((.cse0 (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192))) (store (store .cse0 |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base| (store (select (store (store .cse0 |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) .cse1) (not (= |c_thr1Thread1of3ForFork0_push_loop_~r~0#1| 0)) (or .cse2 (not .cse3)) (forall ((v_ArrVal_1192 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse4 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192) |c_~#m2~0.base| v_ArrVal_1195))) (store .cse4 |c_~#top~0.base| (store (select .cse4 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse5 (or .cse3 (forall ((v_DerPreprocessor_13 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_13) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (not (= |c_thr1Thread1of3ForFork0_push_#res#1| 0)) (not (= .cse6 0)) .cse2 (or .cse1 (forall ((v_ArrVal_1192 (Array Int Int)) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse7 (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192))) (store (store .cse7 |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base| (store (select (store (store .cse7 |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_index_malloc_~curr_alloc_idx~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (or (and .cse5 (not (= (+ c_~next_alloc_idx~0 2) 0))) .cse8) (not (= (select |c_#valid| 4) 0)) (= 4 |c_~#top~0.base|) (forall ((v_ArrVal_1192 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse9 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192) |c_~#m2~0.base| v_ArrVal_1195))) (store .cse9 |c_~#top~0.base| (store (select .cse9 |c_~#top~0.base|) |c_~#top~0.offset| |c_thr1Thread2of3ForFork0_index_malloc_~curr_alloc_idx~0#1|))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse8) (or .cse1 (forall ((v_ArrVal_1192 (Array Int Int)) (v_DerPreprocessor_15 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse10 (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192))) (store (store .cse10 |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base| (store (select (store (store .cse10 |c_~#top~0.base| v_DerPreprocessor_15) |c_~#m2~0.base| v_ArrVal_1195) |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |c_thr1Thread2of3ForFork0_push_~#casret~0#1.base| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (forall ((|v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23| Int)) (or (not (= (+ (select (select |c_#memory_int| |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23|) 0) 1) 0)) (forall ((v_ArrVal_1192 (Array Int Int)) (v_ArrVal_1195 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (not (= (select (select (store (let ((.cse11 (store (store |c_#memory_int| |c_~#m~0.base| v_ArrVal_1192) |c_~#m2~0.base| v_ArrVal_1195))) (store .cse11 |c_~#top~0.base| (store (select .cse11 |c_~#top~0.base|) |c_~#top~0.offset| c_~next_alloc_idx~0))) |v_thr1Thread2of3ForFork0_push_~#casret~0#1.base_23| v_DerPreprocessor_14) |c_~#top~0.base|) |c_~#top~0.offset|) 0))))))))) is different from false [2024-08-23 04:36:26,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 04:36:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:26,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-08-23 04:36:26,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:26,705 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:26,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash 50362078, now seen corresponding path program 1 times [2024-08-23 04:36:26,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:26,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511594818] [2024-08-23 04:36:26,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:26,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:27,432 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 04:36:27,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:27,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511594818] [2024-08-23 04:36:27,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511594818] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:27,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902128634] [2024-08-23 04:36:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:27,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:27,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:27,437 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) [2024-08-23 04:36:27,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-08-23 04:36:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:27,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 39 conjunts are in the unsatisfiable core [2024-08-23 04:36:27,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:28,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-08-23 04:36:28,118 INFO L349 Elim1Store]: treesize reduction 51, result has 40.0 percent of original size [2024-08-23 04:36:28,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 44 [2024-08-23 04:36:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:28,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:28,583 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:28,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902128634] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:28,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:28,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 12] total 32 [2024-08-23 04:36:28,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272766243] [2024-08-23 04:36:28,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:28,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-08-23 04:36:28,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:28,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-08-23 04:36:28,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=925, Unknown=3, NotChecked=0, Total=1056 [2024-08-23 04:36:28,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:28,587 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:28,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.242424242424242) internal successors, (206), 32 states have internal predecessors, (206), 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) [2024-08-23 04:36:28,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:28,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:28,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:28,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:28,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-23 04:36:28,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:28,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:28,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:31,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 04:36:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:31,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-08-23 04:36:31,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-08-23 04:36:31,243 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:31,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:31,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1078224228, now seen corresponding path program 1 times [2024-08-23 04:36:31,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:31,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849563330] [2024-08-23 04:36:31,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:31,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-08-23 04:36:31,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:31,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849563330] [2024-08-23 04:36:31,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849563330] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:31,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:31,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 04:36:31,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465239593] [2024-08-23 04:36:31,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:31,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 04:36:31,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:31,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 04:36:31,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 04:36:31,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:31,411 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:31,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 04:36:31,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:31,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:31,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:31,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:31,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-23 04:36:31,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:31,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:31,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:31,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 04:36:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-08-23 04:36:31,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:31,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-08-23 04:36:31,654 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:31,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:31,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1089282377, now seen corresponding path program 1 times [2024-08-23 04:36:31,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:31,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672884233] [2024-08-23 04:36:31,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:31,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:31,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:31,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672884233] [2024-08-23 04:36:31,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672884233] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:31,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106949775] [2024-08-23 04:36:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:31,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:31,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:31,772 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:36:31,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-08-23 04:36:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:31,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-23 04:36:31,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:32,066 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:32,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106949775] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:32,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:32,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-08-23 04:36:32,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202346418] [2024-08-23 04:36:32,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:32,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-23 04:36:32,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:32,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-23 04:36:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-08-23 04:36:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:32,171 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:32,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.076923076923077) internal successors, (183), 12 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 04:36:32,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:32,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:32,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:32,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:32,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-23 04:36:32,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:32,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:32,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-08-23 04:36:32,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:32,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 04:36:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-08-23 04:36:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-23 04:36:32,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-08-23 04:36:32,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-08-23 04:36:32,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:32,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:32,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1459657685, now seen corresponding path program 1 times [2024-08-23 04:36:32,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:32,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406634572] [2024-08-23 04:36:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:32,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-23 04:36:33,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:33,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406634572] [2024-08-23 04:36:33,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406634572] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:33,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026551043] [2024-08-23 04:36:33,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:33,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:33,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:33,164 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:36:33,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-08-23 04:36:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:33,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 28 conjunts are in the unsatisfiable core [2024-08-23 04:36:33,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:33,811 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-08-23 04:36:33,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-08-23 04:36:33,948 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:33,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:34,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026551043] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:34,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:34,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 8] total 27 [2024-08-23 04:36:34,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485790475] [2024-08-23 04:36:34,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:34,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-08-23 04:36:34,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:34,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-08-23 04:36:34,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=666, Unknown=1, NotChecked=0, Total=756 [2024-08-23 04:36:34,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:34,216 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:34,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.821428571428571) internal successors, (247), 27 states have internal predecessors, (247), 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) [2024-08-23 04:36:34,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:34,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:34,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:34,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:34,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-23 04:36:34,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:34,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:34,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-08-23 04:36:34,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:34,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-23 04:36:34,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-08-23 04:36:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:36:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 04:36:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 04:36:37,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-08-23 04:36:37,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-08-23 04:36:37,345 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:37,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:37,345 INFO L85 PathProgramCache]: Analyzing trace with hash -971007870, now seen corresponding path program 1 times [2024-08-23 04:36:37,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:37,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787658855] [2024-08-23 04:36:37,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:37,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-08-23 04:36:37,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:37,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787658855] [2024-08-23 04:36:37,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787658855] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:37,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:37,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-23 04:36:37,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414133171] [2024-08-23 04:36:37,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:37,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 04:36:37,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:37,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 04:36:37,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-23 04:36:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:37,531 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:37,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 04:36:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:37,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-08-23 04:36:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:36:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 04:36:37,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-08-23 04:36:37,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:37,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-08-23 04:36:37,827 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:37,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:37,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2078167955, now seen corresponding path program 1 times [2024-08-23 04:36:37,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:37,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938871242] [2024-08-23 04:36:37,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:37,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-23 04:36:38,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:38,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938871242] [2024-08-23 04:36:38,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938871242] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:38,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814545491] [2024-08-23 04:36:38,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:38,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:38,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:38,493 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:36:38,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-08-23 04:36:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:38,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 33 conjunts are in the unsatisfiable core [2024-08-23 04:36:38,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:39,143 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-08-23 04:36:39,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-08-23 04:36:39,307 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:36:39,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:39,436 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-23 04:36:39,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814545491] provided 1 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:39,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-08-23 04:36:39,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11, 11] total 26 [2024-08-23 04:36:39,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315190241] [2024-08-23 04:36:39,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:39,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 04:36:39,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:39,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 04:36:39,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=601, Unknown=4, NotChecked=0, Total=702 [2024-08-23 04:36:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:39,439 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:39,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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) [2024-08-23 04:36:39,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:39,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:39,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:39,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:39,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-08-23 04:36:39,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:39,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-08-23 04:36:39,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:36:39,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:39,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 04:36:39,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-08-23 04:36:39,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:39,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-08-23 04:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-08-23 04:36:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:43,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-08-23 04:36:43,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:43,812 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:43,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:43,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1202783612, now seen corresponding path program 1 times [2024-08-23 04:36:43,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:43,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808257216] [2024-08-23 04:36:43,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:43,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:44,033 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-08-23 04:36:44,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:44,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808257216] [2024-08-23 04:36:44,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808257216] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:44,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:44,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 04:36:44,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609197808] [2024-08-23 04:36:44,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:44,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 04:36:44,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:44,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 04:36:44,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 04:36:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:44,036 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:44,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 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) [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:44,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:44,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2024-08-23 04:36:44,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:44,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-08-23 04:36:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:44,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-08-23 04:36:44,616 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:44,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:44,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1061541743, now seen corresponding path program 1 times [2024-08-23 04:36:44,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:44,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576873171] [2024-08-23 04:36:44,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:44,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-08-23 04:36:44,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:44,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576873171] [2024-08-23 04:36:44,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576873171] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:44,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:44,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 04:36:44,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057505735] [2024-08-23 04:36:44,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:44,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 04:36:44,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:44,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 04:36:44,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 04:36:44,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:44,898 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:44,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2024-08-23 04:36:44,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:44,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:44,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:36:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:45,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-08-23 04:36:45,256 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:45,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:45,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2112545495, now seen corresponding path program 2 times [2024-08-23 04:36:45,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:45,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182630936] [2024-08-23 04:36:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:45,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-08-23 04:36:45,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:45,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182630936] [2024-08-23 04:36:45,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182630936] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:45,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:36:45,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 04:36:45,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463488855] [2024-08-23 04:36:45,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:45,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 04:36:45,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:45,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 04:36:45,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 04:36:45,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:45,578 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:45,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:45,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-08-23 04:36:45,926 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:45,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:45,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1688039253, now seen corresponding path program 1 times [2024-08-23 04:36:45,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:45,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300062360] [2024-08-23 04:36:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:45,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:46,628 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 317 proven. 176 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-08-23 04:36:46,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:46,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300062360] [2024-08-23 04:36:46,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300062360] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:46,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196542414] [2024-08-23 04:36:46,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:46,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:46,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:46,631 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:36:46,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-08-23 04:36:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:47,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 1764 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-23 04:36:47,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 317 proven. 176 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-08-23 04:36:47,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 317 proven. 176 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-08-23 04:36:47,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196542414] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:47,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:47,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-08-23 04:36:47,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513580459] [2024-08-23 04:36:47,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:47,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-08-23 04:36:47,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:47,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-08-23 04:36:47,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-08-23 04:36:47,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:47,735 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:47,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.08) internal successors, (377), 24 states have internal predecessors, (377), 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) [2024-08-23 04:36:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:47,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:47,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:47,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:47,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:47,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:48,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:48,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:36:48,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-08-23 04:36:48,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-08-23 04:36:48,556 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:48,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:48,557 INFO L85 PathProgramCache]: Analyzing trace with hash -782407915, now seen corresponding path program 2 times [2024-08-23 04:36:48,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:48,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372708875] [2024-08-23 04:36:48,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:48,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 725 proven. 968 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-08-23 04:36:49,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372708875] [2024-08-23 04:36:49,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372708875] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078421526] [2024-08-23 04:36:49,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 04:36:49,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:49,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:49,873 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:36:49,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-08-23 04:36:50,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 04:36:50,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 04:36:50,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 24 conjunts are in the unsatisfiable core [2024-08-23 04:36:50,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:50,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 18 proven. 1653 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-08-23 04:36:50,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:36:51,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1902 backedges. 18 proven. 1653 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-08-23 04:36:51,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078421526] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:36:51,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:36:51,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2024-08-23 04:36:51,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708979876] [2024-08-23 04:36:51,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:36:51,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-08-23 04:36:51,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:51,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-08-23 04:36:51,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-08-23 04:36:51,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:51,991 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:51,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 15.653061224489797) internal successors, (767), 48 states have internal predecessors, (767), 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) [2024-08-23 04:36:51,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:51,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:51,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:51,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:51,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:51,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:36:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:53,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:53,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:53,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:53,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:53,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:53,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:36:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:36:53,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-08-23 04:36:53,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,22 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:53,473 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:36:53,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:36:53,473 INFO L85 PathProgramCache]: Analyzing trace with hash -20900203, now seen corresponding path program 3 times [2024-08-23 04:36:53,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:36:53,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075326242] [2024-08-23 04:36:53,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:36:53,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:36:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:36:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6318 backedges. 1541 proven. 4568 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-08-23 04:36:58,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:36:58,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075326242] [2024-08-23 04:36:58,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075326242] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:36:58,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95340017] [2024-08-23 04:36:58,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 04:36:58,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:36:58,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:36:58,572 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:36:58,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-08-23 04:36:59,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-08-23 04:36:59,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 04:36:59,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-23 04:36:59,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:36:59,601 INFO L134 CoverageAnalysis]: Checked inductivity of 6318 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 6187 trivial. 0 not checked. [2024-08-23 04:36:59,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 04:36:59,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95340017] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:36:59,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 04:36:59,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [48] total 51 [2024-08-23 04:36:59,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397019618] [2024-08-23 04:36:59,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:36:59,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 04:36:59,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:36:59,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 04:36:59,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1180, Invalid=1370, Unknown=0, NotChecked=0, Total=2550 [2024-08-23 04:36:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:59,605 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:36:59,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-08-23 04:36:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:36:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:59,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:59,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:59,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:36:59,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:36:59,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:36:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:36:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:36:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:36:59,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-08-23 04:37:00,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-08-23 04:37:00,016 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:37:00,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:37:00,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1286981403, now seen corresponding path program 1 times [2024-08-23 04:37:00,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:37:00,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175168552] [2024-08-23 04:37:00,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:37:00,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:37:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:37:01,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5071 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 5041 trivial. 0 not checked. [2024-08-23 04:37:01,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:37:01,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175168552] [2024-08-23 04:37:01,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175168552] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 04:37:01,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 04:37:01,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 04:37:01,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822529789] [2024-08-23 04:37:01,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 04:37:01,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 04:37:01,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:37:01,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 04:37:01,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 04:37:01,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:37:01,176 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:37:01,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-08-23 04:37:01,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:01,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-08-23 04:37:01,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:37:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:37:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:37:05,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-08-23 04:37:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:37:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-08-23 04:37:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:37:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-08-23 04:37:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:37:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:37:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:05,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-08-23 04:37:05,142 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:37:05,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:37:05,142 INFO L85 PathProgramCache]: Analyzing trace with hash -450426101, now seen corresponding path program 1 times [2024-08-23 04:37:05,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:37:05,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124034494] [2024-08-23 04:37:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:37:05,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:37:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:37:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4788 backedges. 220 proven. 4568 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:37:09,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:37:09,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124034494] [2024-08-23 04:37:09,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124034494] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:37:09,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617863819] [2024-08-23 04:37:09,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:37:09,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:37:09,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:37:09,909 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:37:09,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-08-23 04:37:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:37:11,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 4093 conjuncts, 48 conjunts are in the unsatisfiable core [2024-08-23 04:37:11,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:37:11,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4788 backedges. 220 proven. 4568 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:37:11,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:37:14,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4788 backedges. 220 proven. 4568 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:37:14,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617863819] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:37:14,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:37:14,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2024-08-23 04:37:14,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779031558] [2024-08-23 04:37:14,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:37:14,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2024-08-23 04:37:14,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:37:14,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2024-08-23 04:37:14,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2024-08-23 04:37:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:37:14,947 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:37:14,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 14.11340206185567) internal successors, (1369), 96 states have internal predecessors, (1369), 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) [2024-08-23 04:37:14,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:14,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:14,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:37:14,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:14,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:14,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:37:19,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-08-23 04:37:19,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-08-23 04:37:20,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-08-23 04:37:20,128 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:37:20,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:37:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash -376968693, now seen corresponding path program 2 times [2024-08-23 04:37:20,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:37:20,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135142838] [2024-08-23 04:37:20,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:37:20,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:37:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:37:39,217 INFO L134 CoverageAnalysis]: Checked inductivity of 20292 backedges. 460 proven. 19832 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:37:39,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:37:39,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135142838] [2024-08-23 04:37:39,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135142838] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:37:39,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524016769] [2024-08-23 04:37:39,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 04:37:39,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:37:39,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:37:39,220 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:37:39,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-08-23 04:37:41,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 04:37:41,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 04:37:41,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 8077 conjuncts, 96 conjunts are in the unsatisfiable core [2024-08-23 04:37:41,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:37:42,969 INFO L134 CoverageAnalysis]: Checked inductivity of 20292 backedges. 30 proven. 20262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:37:42,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:37:52,997 INFO L134 CoverageAnalysis]: Checked inductivity of 20292 backedges. 30 proven. 20262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:37:52,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524016769] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:37:52,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:37:52,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 192 [2024-08-23 04:37:52,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762395908] [2024-08-23 04:37:52,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:37:53,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2024-08-23 04:37:53,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:37:53,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2024-08-23 04:37:53,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2024-08-23 04:37:53,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:37:53,017 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:37:53,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 14.2279792746114) internal successors, (2746), 192 states have internal predecessors, (2746), 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) [2024-08-23 04:37:53,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2024-08-23 04:37:53,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:38:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:38:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:38:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:38:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:38:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-08-23 04:38:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:38:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:38:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:38:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:38:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-08-23 04:38:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-08-23 04:38:20,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-08-23 04:38:20,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,25 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:38:20,574 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:38:20,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:38:20,575 INFO L85 PathProgramCache]: Analyzing trace with hash -964319221, now seen corresponding path program 3 times [2024-08-23 04:38:20,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:38:20,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23218624] [2024-08-23 04:38:20,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:38:20,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:38:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 04:39:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 83556 backedges. 940 proven. 82616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 04:39:34,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 04:39:34,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23218624] [2024-08-23 04:39:34,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23218624] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 04:39:34,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427661450] [2024-08-23 04:39:34,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 04:39:34,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 04:39:34,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 04:39:34,840 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 04:39:34,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-08-23 04:39:37,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-08-23 04:39:37,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 04:39:37,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 31 conjunts are in the unsatisfiable core [2024-08-23 04:39:37,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 04:39:58,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 7 [2024-08-23 04:39:58,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-08-23 04:39:59,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:39:59,090 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-08-23 04:39:59,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2024-08-23 04:39:59,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-08-23 04:39:59,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-08-23 04:39:59,283 INFO L134 CoverageAnalysis]: Checked inductivity of 83556 backedges. 1881 proven. 62 refuted. 0 times theorem prover too weak. 81613 trivial. 0 not checked. [2024-08-23 04:39:59,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 04:39:59,922 INFO L349 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2024-08-23 04:39:59,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 38 [2024-08-23 04:39:59,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 04:39:59,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 50 [2024-08-23 04:39:59,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2024-08-23 04:40:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 83556 backedges. 1571 proven. 248 refuted. 0 times theorem prover too weak. 81737 trivial. 0 not checked. [2024-08-23 04:40:03,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427661450] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 04:40:03,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 04:40:03,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 9, 7] total 208 [2024-08-23 04:40:03,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241018598] [2024-08-23 04:40:03,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 04:40:03,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 209 states [2024-08-23 04:40:03,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 04:40:03,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2024-08-23 04:40:03,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18622, Invalid=24843, Unknown=7, NotChecked=0, Total=43472 [2024-08-23 04:40:03,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:40:03,310 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 04:40:03,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 209 states, 209 states have (on average 13.89952153110048) internal successors, (2905), 208 states have internal predecessors, (2905), 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) [2024-08-23 04:40:03,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:40:03,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:40:03,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:40:03,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:40:03,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-08-23 04:40:03,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:40:03,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:40:03,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2024-08-23 04:40:03,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:40:03,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:40:03,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2024-08-23 04:40:03,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:40:03,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:40:03,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:40:03,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:40:03,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:40:03,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:40:03,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:40:03,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:40:03,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:40:03,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2024-08-23 04:40:03,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 192 states. [2024-08-23 04:40:03,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:42:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-08-23 04:42:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 957 states. [2024-08-23 04:42:57,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-08-23 04:42:58,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-08-23 04:42:58,023 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 04:42:58,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 04:42:58,024 INFO L85 PathProgramCache]: Analyzing trace with hash 353253922, now seen corresponding path program 1 times [2024-08-23 04:42:58,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 04:42:58,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583171485] [2024-08-23 04:42:58,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 04:42:58,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 04:43:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat