./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/25_stack-pthread.i --full-output --validate ./goblint.2024-08-08_07-59-58.files/protection-local/25_stack-pthread.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/25_stack-pthread.i ./goblint.2024-08-08_07-59-58.files/protection-local/25_stack-pthread.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 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-23 16:01:26,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 16:01:26,238 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 16:01:26,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 16:01:26,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 16:01:26,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 16:01:26,278 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 16:01:26,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 16:01:26,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 16:01:26,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 16:01:26,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 16:01:26,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 16:01:26,281 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 16:01:26,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 16:01:26,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 16:01:26,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 16:01:26,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 16:01:26,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 16:01:26,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 16:01:26,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 16:01:26,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 16:01:26,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 16:01:26,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 16:01:26,288 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 16:01:26,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 16:01:26,288 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 16:01:26,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 16:01:26,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 16:01:26,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 16:01:26,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 16:01:26,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 16:01:26,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 16:01:26,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 16:01:26,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 16:01:26,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 16:01:26,291 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 16:01:26,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 16:01:26,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 16:01:26,293 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 16:01:26,293 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 16:01:26,293 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 16:01:26,293 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 16:01:26,294 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-23 16:01:26,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 16:01:26,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 16:01:26,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 16:01:26,590 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 16:01:26,591 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 16:01:26,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-local/25_stack-pthread.yml/witness.yml [2024-08-23 16:01:26,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 16:01:26,701 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 16:01:26,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/25_stack-pthread.i [2024-08-23 16:01:28,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 16:01:28,346 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 16:01:28,347 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack-pthread.i [2024-08-23 16:01:28,364 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/dc807f5bd/d5e01acb56e64c42af8d85d4f7a14ecf/FLAG4716da564 [2024-08-23 16:01:28,377 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/dc807f5bd/d5e01acb56e64c42af8d85d4f7a14ecf [2024-08-23 16:01:28,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 16:01:28,379 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 16:01:28,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 16:01:28,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 16:01:28,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 16:01:28,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 04:01:26" (1/2) ... [2024-08-23 16:01:28,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d01d968 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:01:28, skipping insertion in model container [2024-08-23 16:01:28,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 04:01:26" (1/2) ... [2024-08-23 16:01:28,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@72bf3edd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 04:01:28, skipping insertion in model container [2024-08-23 16:01:28,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 04:01:28" (2/2) ... [2024-08-23 16:01:28,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d01d968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28, skipping insertion in model container [2024-08-23 16:01:28,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 04:01:28" (2/2) ... [2024-08-23 16:01:28,392 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-23 16:01:28,399 INFO L92 edCorrectnessWitness]: Witness did not contain any usable entries. [2024-08-23 16:01:28,449 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 16:01:28,817 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/25_stack-pthread.i[31344,31357] [2024-08-23 16:01:28,836 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 16:01:28,851 INFO L202 MainTranslator]: Completed pre-run [2024-08-23 16:01:28,915 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/25_stack-pthread.i[31344,31357] [2024-08-23 16:01:28,925 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 16:01:28,969 INFO L206 MainTranslator]: Completed translation [2024-08-23 16:01:28,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28 WrapperNode [2024-08-23 16:01:28,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 16:01:28,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 16:01:28,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 16:01:28,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 16:01:28,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:28,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,025 INFO L138 Inliner]: procedures = 171, calls = 35, calls flagged for inlining = 9, calls inlined = 8, statements flattened = 133 [2024-08-23 16:01:29,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 16:01:29,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 16:01:29,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 16:01:29,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 16:01:29,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 16:01:29,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 16:01:29,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 16:01:29,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 16:01:29,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (1/1) ... [2024-08-23 16:01:29,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 16:01:29,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:29,096 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 16:01:29,100 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 16:01:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-08-23 16:01:29,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-08-23 16:01:29,130 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-23 16:01:29,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-23 16:01:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 16:01:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 16:01:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-23 16:01:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-23 16:01:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 16:01:29,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 16:01:29,153 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 16:01:29,290 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 16:01:29,292 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 16:01:29,501 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 16:01:29,501 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 16:01:29,696 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 16:01:29,696 INFO L319 CfgBuilder]: Removed 2 assume(true) statements. [2024-08-23 16:01:29,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 04:01:29 BoogieIcfgContainer [2024-08-23 16:01:29,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 16:01:29,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 16:01:29,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 16:01:29,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 16:01:29,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 04:01:26" (1/4) ... [2024-08-23 16:01:29,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7b3f77 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 04:01:29, skipping insertion in model container [2024-08-23 16:01:29,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 04:01:28" (2/4) ... [2024-08-23 16:01:29,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7b3f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 04:01:29, skipping insertion in model container [2024-08-23 16:01:29,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 04:01:28" (3/4) ... [2024-08-23 16:01:29,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7b3f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 04:01:29, skipping insertion in model container [2024-08-23 16:01:29,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 04:01:29" (4/4) ... [2024-08-23 16:01:29,709 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack-pthread.i [2024-08-23 16:01:29,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 16:01:29,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-23 16:01:29,731 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 16:01:29,798 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-23 16:01:29,847 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 16:01:29,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 16:01:29,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:29,851 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 16:01:29,852 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 16:01:29,887 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 16:01:29,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-08-23 16:01:29,903 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;@6c42fbbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 16:01:29,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-23 16:01:30,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:30,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1921419239, now seen corresponding path program 1 times [2024-08-23 16:01:30,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:30,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734630704] [2024-08-23 16:01:30,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:30,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:30,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:30,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734630704] [2024-08-23 16:01:30,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734630704] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:30,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:30,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 16:01:30,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775099575] [2024-08-23 16:01:30,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:30,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 16:01:30,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:30,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 16:01:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 16:01:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:30,472 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:30,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 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 16:01:30,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:30,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:30,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 16:01:30,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:30,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:30,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1004362886, now seen corresponding path program 1 times [2024-08-23 16:01:30,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:30,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555096306] [2024-08-23 16:01:30,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:30,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:30,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:30,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555096306] [2024-08-23 16:01:30,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555096306] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:30,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:30,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:30,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605289192] [2024-08-23 16:01:30,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:30,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 16:01:30,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:30,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 16:01:30,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-23 16:01:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:30,755 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:30,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) 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 16:01:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:30,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:30,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-23 16:01:30,884 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:30,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:30,886 INFO L85 PathProgramCache]: Analyzing trace with hash 753684577, now seen corresponding path program 1 times [2024-08-23 16:01:30,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:30,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273598040] [2024-08-23 16:01:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:30,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:31,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:31,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273598040] [2024-08-23 16:01:31,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273598040] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:31,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:31,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-23 16:01:31,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996003473] [2024-08-23 16:01:31,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:31,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-23 16:01:31,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:31,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-23 16:01:31,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-08-23 16:01:31,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:31,332 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:31,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 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 16:01:31,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:31,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:31,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-08-23 16:01:31,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-23 16:01:31,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-23 16:01:31,983 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-08-23 16:01:31,984 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2024-08-23 16:01:31,987 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 16:01:31,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 16:01:31,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:32,005 INFO L229 MonitoredProcess]: Starting monitored process 3 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 16:01:32,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-08-23 16:01:32,009 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 16:01:32,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 16:01:32,010 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;@6c42fbbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 16:01:32,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-23 16:01:32,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:32,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:32,081 INFO L85 PathProgramCache]: Analyzing trace with hash 352059429, now seen corresponding path program 1 times [2024-08-23 16:01:32,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:32,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423948005] [2024-08-23 16:01:32,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:32,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:32,121 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 16:01:32,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:32,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423948005] [2024-08-23 16:01:32,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423948005] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:32,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:32,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 16:01:32,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222706313] [2024-08-23 16:01:32,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:32,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 16:01:32,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:32,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 16:01:32,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 16:01:32,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:32,127 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:32,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 16:01:32,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:32,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-23 16:01:32,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:32,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:32,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1174918982, now seen corresponding path program 1 times [2024-08-23 16:01:32,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:32,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597432818] [2024-08-23 16:01:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:32,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:32,255 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 16:01:32,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:32,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597432818] [2024-08-23 16:01:32,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597432818] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:32,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:32,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:32,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856557830] [2024-08-23 16:01:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:32,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 16:01:32,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:32,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 16:01:32,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-23 16:01:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:32,258 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:32,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 16:01:32,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:32,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:32,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:32,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:32,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-23 16:01:32,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:32,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:32,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1558583699, now seen corresponding path program 1 times [2024-08-23 16:01:32,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:32,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412063982] [2024-08-23 16:01:32,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:32,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:32,533 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 16:01:32,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:32,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412063982] [2024-08-23 16:01:32,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412063982] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:32,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:32,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-23 16:01:32,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583635694] [2024-08-23 16:01:32,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:32,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-23 16:01:32,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:32,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-23 16:01:32,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-08-23 16:01:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:32,536 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:32,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 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 16:01:32,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:32,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:32,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:32,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:32,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:32,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 16:01:32,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-23 16:01:32,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:32,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:32,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1558582738, now seen corresponding path program 1 times [2024-08-23 16:01:32,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:32,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296385904] [2024-08-23 16:01:32,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:32,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 16:01:32,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-23 16:01:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 16:01:32,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-23 16:01:32,741 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-23 16:01:32,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-08-23 16:01:32,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-23 16:01:32,745 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-08-23 16:01:32,746 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2024-08-23 16:01:32,746 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-23 16:01:32,746 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-08-23 16:01:32,780 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-23 16:01:32,782 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 16:01:32,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 16:01:32,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:32,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-23 16:01:32,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-08-23 16:01:32,788 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 16:01:32,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 16:01:32,789 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;@6c42fbbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 16:01:32,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-23 16:01:32,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:32,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:32,969 INFO L85 PathProgramCache]: Analyzing trace with hash -972665791, now seen corresponding path program 1 times [2024-08-23 16:01:32,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:32,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888601453] [2024-08-23 16:01:32,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:32,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:33,029 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 16:01:33,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:33,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888601453] [2024-08-23 16:01:33,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888601453] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:33,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:33,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 16:01:33,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315887458] [2024-08-23 16:01:33,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:33,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 16:01:33,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:33,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 16:01:33,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 16:01:33,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:33,032 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:33,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 16:01:33,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:33,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:33,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-23 16:01:33,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:33,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:33,093 INFO L85 PathProgramCache]: Analyzing trace with hash -234768512, now seen corresponding path program 1 times [2024-08-23 16:01:33,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:33,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376846330] [2024-08-23 16:01:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:33,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:33,175 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 16:01:33,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:33,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376846330] [2024-08-23 16:01:33,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376846330] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:33,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:33,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:33,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144320189] [2024-08-23 16:01:33,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:33,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 16:01:33,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:33,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 16:01:33,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-23 16:01:33,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:33,178 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:33,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 16:01:33,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:33,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:33,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:33,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:33,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-08-23 16:01:33,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:33,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:33,306 INFO L85 PathProgramCache]: Analyzing trace with hash 521114945, now seen corresponding path program 1 times [2024-08-23 16:01:33,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:33,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138520719] [2024-08-23 16:01:33,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:33,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:33,388 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 16:01:33,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:33,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138520719] [2024-08-23 16:01:33,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138520719] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:01:33,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663624977] [2024-08-23 16:01:33,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:33,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:33,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:33,391 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 16:01:33,393 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 16:01:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:33,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2024-08-23 16:01:33,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:01:33,604 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 16:01:33,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 16:01:33,740 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 16:01:33,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663624977] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 16:01:33,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 16:01:33,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-08-23 16:01:33,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158647781] [2024-08-23 16:01:33,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 16:01:33,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-23 16:01:33,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:33,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-23 16:01:33,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-08-23 16:01:33,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:33,744 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:33,744 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 16:01:33,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:33,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:33,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:33,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:33,861 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 16:01:34,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:34,044 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:34,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:34,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1343974498, now seen corresponding path program 1 times [2024-08-23 16:01:34,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:34,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223728156] [2024-08-23 16:01:34,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:34,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:34,176 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 16:01:34,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:34,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223728156] [2024-08-23 16:01:34,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223728156] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:34,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:34,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:34,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718881065] [2024-08-23 16:01:34,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:34,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 16:01:34,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:34,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 16:01:34,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 16:01:34,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:34,178 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:34,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 16:01:34,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:34,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-08-23 16:01:34,264 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:34,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:34,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1343975459, now seen corresponding path program 1 times [2024-08-23 16:01:34,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:34,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64812718] [2024-08-23 16:01:34,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:34,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:34,373 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 16:01:34,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:34,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64812718] [2024-08-23 16:01:34,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64812718] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:01:34,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600894490] [2024-08-23 16:01:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:34,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:34,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:34,375 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 16:01:34,377 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 16:01:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:34,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-23 16:01:34,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:01:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:34,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 16:01:34,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600894490] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:34,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 16:01:34,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-08-23 16:01:34,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963670557] [2024-08-23 16:01:34,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:34,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-23 16:01:34,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:34,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-23 16:01:34,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-08-23 16:01:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:34,595 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:34,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 16:01:34,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:34,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:34,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:34,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:34,773 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 16:01:34,955 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,SelfDestructingSolverStorable11 [2024-08-23 16:01:34,956 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:34,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:34,956 INFO L85 PathProgramCache]: Analyzing trace with hash 821631212, now seen corresponding path program 1 times [2024-08-23 16:01:34,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:34,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906463724] [2024-08-23 16:01:34,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:34,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:35,256 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 16:01:35,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:35,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906463724] [2024-08-23 16:01:35,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906463724] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:35,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:35,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-23 16:01:35,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635242703] [2024-08-23 16:01:35,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:35,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-23 16:01:35,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:35,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-23 16:01:35,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-08-23 16:01:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:35,258 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:35,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 16:01:35,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:35,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:35,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:35,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:35,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:35,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 16:01:35,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-23 16:01:35,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:35,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:35,570 INFO L85 PathProgramCache]: Analyzing trace with hash 2019022948, now seen corresponding path program 1 times [2024-08-23 16:01:35,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:35,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420509033] [2024-08-23 16:01:35,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:35,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:35,707 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-08-23 16:01:35,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:35,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420509033] [2024-08-23 16:01:35,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420509033] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:35,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:35,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:35,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513607549] [2024-08-23 16:01:35,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:35,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 16:01:35,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:35,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 16:01:35,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 16:01:35,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:35,714 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:35,714 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 16:01:35,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:35,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:35,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:35,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 16:01:35,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 16:01:35,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:35,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-08-23 16:01:35,832 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:35,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:35,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1021950595, now seen corresponding path program 1 times [2024-08-23 16:01:35,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:35,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288938185] [2024-08-23 16:01:35,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:35,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:35,949 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:35,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:35,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288938185] [2024-08-23 16:01:35,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288938185] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:01:35,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345057456] [2024-08-23 16:01:35,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:35,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:35,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:35,951 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 16:01:35,953 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 16:01:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:36,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-23 16:01:36,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:01:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:36,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 16:01:36,267 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:36,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345057456] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 16:01:36,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 16:01:36,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-08-23 16:01:36,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516533646] [2024-08-23 16:01:36,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 16:01:36,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-08-23 16:01:36,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:36,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-08-23 16:01:36,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-08-23 16:01:36,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:36,270 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:36,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 9 states have internal predecessors, (112), 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 16:01:36,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:36,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:36,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:36,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:36,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:36,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 16:01:36,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:36,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:36,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 16:01:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-23 16:01:36,595 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 16:01:36,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-08-23 16:01:36,778 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:36,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:36,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1224580954, now seen corresponding path program 1 times [2024-08-23 16:01:36,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:36,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999642428] [2024-08-23 16:01:36,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:36,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:36,968 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-08-23 16:01:36,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:36,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999642428] [2024-08-23 16:01:36,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999642428] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:36,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:36,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:36,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882597931] [2024-08-23 16:01:36,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:36,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 16:01:36,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:36,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 16:01:36,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 16:01:36,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:36,970 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:36,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 16:01:36,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:36,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:36,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:36,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:36,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:36,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-23 16:01:36,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:36,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-23 16:01:36,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:37,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:37,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-23 16:01:37,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:37,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-23 16:01:37,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:37,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-08-23 16:01:37,068 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 16:01:37,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1224581915, now seen corresponding path program 1 times [2024-08-23 16:01:37,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:37,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945204747] [2024-08-23 16:01:37,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:37,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 16:01:37,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-23 16:01:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-23 16:01:37,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-23 16:01:37,145 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-23 16:01:37,145 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-08-23 16:01:37,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-08-23 16:01:37,147 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-23 16:01:37,147 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2024-08-23 16:01:37,147 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-23 16:01:37,147 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-08-23 16:01:37,185 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-23 16:01:37,187 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 16:01:37,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 16:01:37,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:37,190 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 16:01:37,191 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 16:01:37,193 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 16:01:37,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2024-08-23 16:01:37,194 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;@6c42fbbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 16:01:37,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-23 16:01:37,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:37,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash -721899778, now seen corresponding path program 1 times [2024-08-23 16:01:37,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:37,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445770462] [2024-08-23 16:01:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:37,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:37,526 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 16:01:37,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:37,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445770462] [2024-08-23 16:01:37,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445770462] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:37,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:37,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-23 16:01:37,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550656106] [2024-08-23 16:01:37,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:37,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 16:01:37,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:37,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 16:01:37,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 16:01:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:37,529 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:37,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 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 16:01:37,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:37,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:37,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-08-23 16:01:37,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:37,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:37,625 INFO L85 PathProgramCache]: Analyzing trace with hash 398936479, now seen corresponding path program 1 times [2024-08-23 16:01:37,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:37,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982011801] [2024-08-23 16:01:37,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:37,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 16:01:37,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:37,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982011801] [2024-08-23 16:01:37,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982011801] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:37,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:37,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:37,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220286164] [2024-08-23 16:01:37,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:37,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 16:01:37,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:37,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 16:01:37,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-23 16:01:37,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:37,735 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:37,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 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 16:01:37,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:37,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:37,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-08-23 16:01:37,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:37,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:37,907 INFO L85 PathProgramCache]: Analyzing trace with hash 715773239, now seen corresponding path program 1 times [2024-08-23 16:01:37,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:37,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805006815] [2024-08-23 16:01:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:37,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:37,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:37,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805006815] [2024-08-23 16:01:37,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805006815] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:01:37,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383050558] [2024-08-23 16:01:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:37,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:37,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:37,979 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 16:01:37,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-23 16:01:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:38,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 3 conjunts are in the unsatisfiable core [2024-08-23 16:01:38,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:01:38,200 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:38,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 16:01:38,256 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:38,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383050558] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 16:01:38,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 16:01:38,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-08-23 16:01:38,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849739992] [2024-08-23 16:01:38,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 16:01:38,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-23 16:01:38,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:38,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-23 16:01:38,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-08-23 16:01:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:38,260 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:38,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 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 16:01:38,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:38,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:38,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:38,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:38,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-08-23 16:01:38,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:38,580 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:38,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:38,581 INFO L85 PathProgramCache]: Analyzing trace with hash -480366697, now seen corresponding path program 1 times [2024-08-23 16:01:38,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:38,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730918280] [2024-08-23 16:01:38,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:38,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 16:01:38,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:38,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730918280] [2024-08-23 16:01:38,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730918280] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:38,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:38,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:38,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210386774] [2024-08-23 16:01:38,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:38,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 16:01:38,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:38,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 16:01:38,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 16:01:38,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:38,686 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:38,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 16:01:38,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:38,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:38,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:38,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:38,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:38,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-08-23 16:01:38,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:38,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:38,889 INFO L85 PathProgramCache]: Analyzing trace with hash 335395296, now seen corresponding path program 1 times [2024-08-23 16:01:38,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:38,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895242599] [2024-08-23 16:01:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:38,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-08-23 16:01:38,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:38,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895242599] [2024-08-23 16:01:38,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895242599] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:38,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:38,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 16:01:38,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104309794] [2024-08-23 16:01:38,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:38,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 16:01:38,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:38,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 16:01:38,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 16:01:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:38,998 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:38,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 16:01:38,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:38,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:38,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:38,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:38,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:39,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-08-23 16:01:39,297 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:39,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:39,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1030398339, now seen corresponding path program 1 times [2024-08-23 16:01:39,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:39,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331499141] [2024-08-23 16:01:39,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:39,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-23 16:01:39,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:39,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331499141] [2024-08-23 16:01:39,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331499141] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:39,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:39,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-23 16:01:39,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806004772] [2024-08-23 16:01:39,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:39,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-23 16:01:39,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:39,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-23 16:01:39,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-08-23 16:01:39,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:39,443 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:39,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 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 16:01:39,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:39,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:39,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:39,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:39,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:39,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:39,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:39,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-08-23 16:01:39,719 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:39,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1225453889, now seen corresponding path program 1 times [2024-08-23 16:01:39,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:39,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753694556] [2024-08-23 16:01:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:39,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:01:39,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:39,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753694556] [2024-08-23 16:01:39,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753694556] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:01:39,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571374763] [2024-08-23 16:01:39,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:39,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:39,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:39,906 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 16:01:39,909 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 16:01:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:40,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-23 16:01:40,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:01:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-23 16:01:40,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 16:01:40,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571374763] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:40,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 16:01:40,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-08-23 16:01:40,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894245230] [2024-08-23 16:01:40,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:40,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-23 16:01:40,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:40,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-23 16:01:40,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-08-23 16:01:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:40,202 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:40,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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 16:01:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:40,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:40,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:40,459 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 16:01:40,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:40,642 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:40,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:40,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1113697195, now seen corresponding path program 1 times [2024-08-23 16:01:40,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:40,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121105587] [2024-08-23 16:01:40,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:40,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 16:01:40,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:40,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121105587] [2024-08-23 16:01:40,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121105587] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:01:40,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214551434] [2024-08-23 16:01:40,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:40,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:40,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:40,816 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 16:01:40,817 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 16:01:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:41,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-23 16:01:41,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:01:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 16:01:41,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 16:01:41,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214551434] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:41,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 16:01:41,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2024-08-23 16:01:41,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743503295] [2024-08-23 16:01:41,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:41,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-23 16:01:41,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:41,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-23 16:01:41,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-08-23 16:01:41,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:41,110 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:41,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 16:01:41,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:41,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:41,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:41,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:41,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:41,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:41,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-08-23 16:01:41,486 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,SelfDestructingSolverStorable24 [2024-08-23 16:01:41,487 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:41,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:41,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1184259173, now seen corresponding path program 1 times [2024-08-23 16:01:41,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:41,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745668649] [2024-08-23 16:01:41,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:41,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:41,615 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-23 16:01:41,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:41,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745668649] [2024-08-23 16:01:41,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745668649] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:41,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:41,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 16:01:41,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200465026] [2024-08-23 16:01:41,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:41,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 16:01:41,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:41,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 16:01:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 16:01:41,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:41,616 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:41,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 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 16:01:41,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:41,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:41,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:41,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:41,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:41,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:41,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:41,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-08-23 16:01:41,972 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:41,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:41,973 INFO L85 PathProgramCache]: Analyzing trace with hash -763720810, now seen corresponding path program 1 times [2024-08-23 16:01:41,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:41,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218775681] [2024-08-23 16:01:41,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:41,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-08-23 16:01:42,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:42,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218775681] [2024-08-23 16:01:42,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218775681] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:42,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:42,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:42,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185518162] [2024-08-23 16:01:42,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:42,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 16:01:42,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:42,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 16:01:42,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 16:01:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:42,181 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:42,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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 16:01:42,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:42,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:42,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:42,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:42,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:42,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:42,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-08-23 16:01:42,756 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:42,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:42,757 INFO L85 PathProgramCache]: Analyzing trace with hash 255393803, now seen corresponding path program 2 times [2024-08-23 16:01:42,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:42,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193393377] [2024-08-23 16:01:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:42,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:42,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 1183 proven. 0 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2024-08-23 16:01:42,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:42,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193393377] [2024-08-23 16:01:42,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193393377] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:42,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:42,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 16:01:42,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417074447] [2024-08-23 16:01:42,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:42,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 16:01:42,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:42,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 16:01:42,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 16:01:42,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:42,971 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:42,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:42,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:43,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:43,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:43,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-08-23 16:01:43,203 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:43,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:43,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1226140430, now seen corresponding path program 1 times [2024-08-23 16:01:43,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:43,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983588839] [2024-08-23 16:01:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:43,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-08-23 16:01:43,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:43,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983588839] [2024-08-23 16:01:43,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983588839] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:43,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:43,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 16:01:43,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875451782] [2024-08-23 16:01:43,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:43,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-23 16:01:43,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:43,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-23 16:01:43,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-23 16:01:43,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:43,408 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:43,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 16:01:43,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:43,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:43,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:43,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:43,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:43,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:43,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:43,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:43,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:43,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:43,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-08-23 16:01:43,734 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:43,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2119246005, now seen corresponding path program 1 times [2024-08-23 16:01:43,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:43,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652719368] [2024-08-23 16:01:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:43,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:44,077 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 78 proven. 148 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 16:01:44,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:44,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652719368] [2024-08-23 16:01:44,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652719368] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:01:44,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445792371] [2024-08-23 16:01:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:44,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:44,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:44,080 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 16:01:44,082 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 16:01:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:44,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-23 16:01:44,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:01:44,613 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 78 proven. 148 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 16:01:44,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 16:01:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 78 proven. 148 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 16:01:44,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445792371] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 16:01:44,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 16:01:44,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-08-23 16:01:44,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155234880] [2024-08-23 16:01:44,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 16:01:44,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-08-23 16:01:44,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:44,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-08-23 16:01:44,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-08-23 16:01:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:44,880 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:44,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 15.666666666666666) internal successors, (329), 20 states have internal predecessors, (329), 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 16:01:44,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:44,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:44,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:44,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:44,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:44,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:44,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:44,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:44,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:44,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:44,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:44,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:44,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:45,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:01:45,667 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 16:01:45,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:45,849 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:45,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1121391025, now seen corresponding path program 2 times [2024-08-23 16:01:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:45,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729064272] [2024-08-23 16:01:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:45,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:46,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 240 proven. 1192 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 16:01:46,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:46,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729064272] [2024-08-23 16:01:46,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729064272] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:01:46,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117751117] [2024-08-23 16:01:46,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 16:01:46,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:01:46,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:01:46,962 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 16:01:46,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-23 16:01:47,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-08-23 16:01:47,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 16:01:47,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-23 16:01:47,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:01:47,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2024-08-23 16:01:47,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 16:01:47,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117751117] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:47,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 16:01:47,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [22] total 25 [2024-08-23 16:01:47,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694445568] [2024-08-23 16:01:47,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:47,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 16:01:47,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:47,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 16:01:47,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=343, Unknown=0, NotChecked=0, Total=600 [2024-08-23 16:01:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:47,344 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:47,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 16:01:47,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:47,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:47,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:47,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:47,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:47,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:47,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:01:47,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:47,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-08-23 16:01:47,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-08-23 16:01:47,798 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:47,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:47,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1180600742, now seen corresponding path program 1 times [2024-08-23 16:01:47,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:47,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689576822] [2024-08-23 16:01:47,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:47,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1507 trivial. 0 not checked. [2024-08-23 16:01:48,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:48,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689576822] [2024-08-23 16:01:48,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689576822] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:48,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:48,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-23 16:01:48,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71228961] [2024-08-23 16:01:48,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:48,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-23 16:01:48,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-23 16:01:48,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-08-23 16:01:48,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:48,814 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:48,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 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 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:48,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:48,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:48,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:01:48,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:48,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:01:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-08-23 16:01:49,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-08-23 16:01:49,487 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:01:49,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:01:49,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1746999924, now seen corresponding path program 1 times [2024-08-23 16:01:49,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:01:49,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328501240] [2024-08-23 16:01:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:01:49,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:01:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:01:49,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2024-08-23 16:01:49,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:01:49,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328501240] [2024-08-23 16:01:49,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328501240] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:01:49,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 16:01:49,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 16:01:49,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496903568] [2024-08-23 16:01:49,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:01:49,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 16:01:49,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:01:49,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 16:01:49,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 16:01:49,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:01:49,844 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:01:49,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 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 16:01:49,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:49,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:49,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-08-23 16:01:49,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:02:03,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-23 16:02:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:03,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-08-23 16:02:03,789 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:02:03,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:02:03,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1282631582, now seen corresponding path program 1 times [2024-08-23 16:02:03,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:02:03,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413130138] [2024-08-23 16:02:03,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:02:03,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:02:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:02:06,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2966 backedges. 2772 proven. 104 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-08-23 16:02:06,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:02:06,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413130138] [2024-08-23 16:02:06,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413130138] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:02:06,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2884269] [2024-08-23 16:02:06,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:02:06,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:02:06,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:02:06,115 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 16:02:06,116 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 16:02:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:02:06,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-23 16:02:06,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:02:06,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2966 backedges. 220 proven. 4 refuted. 0 times theorem prover too weak. 2742 trivial. 0 not checked. [2024-08-23 16:02:06,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 16:02:06,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2966 backedges. 220 proven. 4 refuted. 0 times theorem prover too weak. 2742 trivial. 0 not checked. [2024-08-23 16:02:06,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2884269] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 16:02:06,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 16:02:06,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 5, 5] total 41 [2024-08-23 16:02:06,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928881284] [2024-08-23 16:02:06,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 16:02:06,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-08-23 16:02:06,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:02:06,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-08-23 16:02:06,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=617, Invalid=1105, Unknown=0, NotChecked=0, Total=1722 [2024-08-23 16:02:06,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:02:06,954 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:02:06,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 13.5) internal successors, (567), 41 states have internal predecessors, (567), 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 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:02:06,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:02:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-23 16:02:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:02:22,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:02:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:02:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-08-23 16:02:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-08-23 16:02:22,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-08-23 16:02:23,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-08-23 16:02:23,020 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-23 16:02:23,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 16:02:23,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2085943484, now seen corresponding path program 1 times [2024-08-23 16:02:23,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 16:02:23,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514982746] [2024-08-23 16:02:23,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:02:23,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 16:02:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:02:25,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 3265 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 16:02:25,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 16:02:25,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514982746] [2024-08-23 16:02:25,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514982746] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 16:02:25,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083294046] [2024-08-23 16:02:25,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 16:02:25,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 16:02:25,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 16:02:25,491 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 16:02:25,493 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 16:02:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 16:02:26,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 2889 conjuncts, 34 conjunts are in the unsatisfiable core [2024-08-23 16:02:26,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 16:02:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 3269 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-08-23 16:02:26,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 16:02:26,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083294046] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 16:02:26,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 16:02:26,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [39] total 40 [2024-08-23 16:02:26,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100620037] [2024-08-23 16:02:26,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 16:02:26,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-08-23 16:02:26,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 16:02:26,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-08-23 16:02:26,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=783, Invalid=857, Unknown=0, NotChecked=0, Total=1640 [2024-08-23 16:02:26,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 16:02:26,854 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 16:02:26,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 15.971428571428572) internal successors, (559), 34 states have internal predecessors, (559), 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 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 16:02:26,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 16:02:26,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-08-23 16:02:26,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 16:02:26,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2024-08-23 16:02:26,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.