./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 08:22:14,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 08:22:14,401 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-12-05 08:22:14,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 08:22:14,406 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 08:22:14,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 08:22:14,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 08:22:14,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 08:22:14,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 08:22:14,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 08:22:14,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 08:22:14,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 08:22:14,428 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 08:22:14,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 08:22:14,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 08:22:14,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 08:22:14,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 08:22:14,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 08:22:14,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 08:22:14,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 08:22:14,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 08:22:14,430 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 08:22:14,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2024-12-05 08:22:14,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 08:22:14,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 08:22:14,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 08:22:14,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 08:22:14,689 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 08:22:14,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-12-05 08:22:17,328 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/data/b1d6a72d3/a8a625f4c6574ed491ebb0169c30bb4b/FLAGe84d9e3b1 [2024-12-05 08:22:17,588 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 08:22:17,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-12-05 08:22:17,602 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/data/b1d6a72d3/a8a625f4c6574ed491ebb0169c30bb4b/FLAGe84d9e3b1 [2024-12-05 08:22:17,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/data/b1d6a72d3/a8a625f4c6574ed491ebb0169c30bb4b [2024-12-05 08:22:17,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 08:22:17,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 08:22:17,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 08:22:17,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 08:22:17,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 08:22:17,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:22:17" (1/1) ... [2024-12-05 08:22:17,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607a2281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:17, skipping insertion in model container [2024-12-05 08:22:17,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:22:17" (1/1) ... [2024-12-05 08:22:17,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 08:22:18,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 08:22:18,287 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 08:22:18,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 08:22:18,379 INFO L204 MainTranslator]: Completed translation [2024-12-05 08:22:18,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18 WrapperNode [2024-12-05 08:22:18,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 08:22:18,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 08:22:18,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 08:22:18,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 08:22:18,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,424 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 266 [2024-12-05 08:22:18,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 08:22:18,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 08:22:18,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 08:22:18,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 08:22:18,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,447 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,448 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 08:22:18,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 08:22:18,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 08:22:18,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 08:22:18,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (1/1) ... [2024-12-05 08:22:18,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 08:22:18,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:22:18,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 08:22:18,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 08:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 08:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 08:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-05 08:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 08:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 08:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-05 08:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 08:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-05 08:22:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-05 08:22:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 08:22:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 08:22:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 08:22:18,505 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 08:22:18,616 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 08:22:18,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 08:22:19,032 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 08:22:19,032 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 08:22:19,472 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 08:22:19,472 INFO L312 CfgBuilder]: Removed 13 assume(true) statements. [2024-12-05 08:22:19,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:22:19 BoogieIcfgContainer [2024-12-05 08:22:19,472 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 08:22:19,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 08:22:19,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 08:22:19,479 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 08:22:19,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:22:17" (1/3) ... [2024-12-05 08:22:19,480 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b97b9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:22:19, skipping insertion in model container [2024-12-05 08:22:19,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:22:18" (2/3) ... [2024-12-05 08:22:19,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b97b9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:22:19, skipping insertion in model container [2024-12-05 08:22:19,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:22:19" (3/3) ... [2024-12-05 08:22:19,482 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2024-12-05 08:22:19,497 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 08:22:19,499 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_76-tricky_address3_racefree.i that has 2 procedures, 109 locations, 1 initial locations, 13 loop locations, and 27 error locations. [2024-12-05 08:22:19,499 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 08:22:19,557 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-05 08:22:19,604 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:22:19,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 08:22:19,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:22:19,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 08:22:19,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 08:22:19,683 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:22:19,692 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-12-05 08:22:19,700 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8ffc656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:22:19,700 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-12-05 08:22:19,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:19,937 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:19,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:19,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1272502046, now seen corresponding path program 1 times [2024-12-05 08:22:19,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:19,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362435296] [2024-12-05 08:22:19,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:19,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:20,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:20,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:20,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362435296] [2024-12-05 08:22:20,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362435296] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:20,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:20,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 08:22:20,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528042691] [2024-12-05 08:22:20,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:20,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:22:20,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:20,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:22:20,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:22:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:20,219 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:20,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-12-05 08:22:20,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:20,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-05 08:22:20,292 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:20,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:20,293 INFO L85 PathProgramCache]: Analyzing trace with hash -185525132, now seen corresponding path program 1 times [2024-12-05 08:22:20,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:20,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138098662] [2024-12-05 08:22:20,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:20,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:20,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:20,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138098662] [2024-12-05 08:22:20,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138098662] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:22:20,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114265927] [2024-12-05 08:22:20,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:20,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:22:20,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:22:20,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:22:20,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-05 08:22:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:20,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 08:22:20,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:22:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:20,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:22:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:20,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114265927] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:22:20,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:22:20,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-05 08:22:20,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253826772] [2024-12-05 08:22:20,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:22:20,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-05 08:22:20,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:20,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-05 08:22:20,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-05 08:22:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:20,566 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:20,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 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) [2024-12-05 08:22:20,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:20,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:20,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:20,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:20,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-05 08:22:20,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:22:20,818 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:20,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash 196967090, now seen corresponding path program 2 times [2024-12-05 08:22:20,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:20,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819256232] [2024-12-05 08:22:20,819 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:22:20,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:20,852 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 08:22:20,852 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:22:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-05 08:22:21,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:21,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819256232] [2024-12-05 08:22:21,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819256232] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:21,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:21,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 08:22:21,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294789408] [2024-12-05 08:22:21,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:21,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:22:21,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:21,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:22:21,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:22:21,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:21,080 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:21,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-12-05 08:22:21,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:21,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:21,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:21,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:21,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-05 08:22:21,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:21,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:21,209 INFO L85 PathProgramCache]: Analyzing trace with hash 196967091, now seen corresponding path program 1 times [2024-12-05 08:22:21,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:21,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278390851] [2024-12-05 08:22:21,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:21,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:21,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:21,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278390851] [2024-12-05 08:22:21,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278390851] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:22:21,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945827483] [2024-12-05 08:22:21,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:21,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:22:21,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:22:21,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:22:21,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-05 08:22:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:21,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 08:22:21,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:22:21,497 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:21,497 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:22:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:21,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945827483] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:22:21,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:22:21,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-12-05 08:22:21,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046360682] [2024-12-05 08:22:21,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:22:21,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-05 08:22:21,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:21,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-05 08:22:21,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-05 08:22:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:21,563 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:21,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 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) [2024-12-05 08:22:21,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:21,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:21,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:21,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:21,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:21,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:21,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:21,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:21,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-05 08:22:21,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:22:21,843 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:21,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:21,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1134084979, now seen corresponding path program 2 times [2024-12-05 08:22:21,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:21,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15718222] [2024-12-05 08:22:21,843 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:22:21,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:21,867 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 08:22:21,867 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:22:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:22,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15718222] [2024-12-05 08:22:22,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15718222] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:22,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:22,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 08:22:22,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313654157] [2024-12-05 08:22:22,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:22,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:22:22,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:22,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:22:22,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:22:22,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:22,131 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:22,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-12-05 08:22:22,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:22,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:22,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:22,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:22,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:22,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:22,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-05 08:22:22,749 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:22,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:22,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2144106977, now seen corresponding path program 1 times [2024-12-05 08:22:22,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:22,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488560017] [2024-12-05 08:22:22,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:22,870 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:22,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:22,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488560017] [2024-12-05 08:22:22,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488560017] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:22,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:22,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 08:22:22,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130921567] [2024-12-05 08:22:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:22,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-05 08:22:22,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:22,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 08:22:22,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-05 08:22:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:22,872 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:22,872 INFO L472 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) [2024-12-05 08:22:22,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:22,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:22,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:22,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:22,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:22,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:23,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:23,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-05 08:22:23,052 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:23,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:23,053 INFO L85 PathProgramCache]: Analyzing trace with hash -120223238, now seen corresponding path program 1 times [2024-12-05 08:22:23,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:23,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244176396] [2024-12-05 08:22:23,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:23,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:24,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:24,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244176396] [2024-12-05 08:22:24,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244176396] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:24,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:24,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-05 08:22:24,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026848308] [2024-12-05 08:22:24,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:24,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 08:22:24,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:24,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 08:22:24,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-05 08:22:24,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:24,228 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:24,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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) [2024-12-05 08:22:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:24,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:24,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 08:22:25,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-05 08:22:25,005 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:25,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:25,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1921611575, now seen corresponding path program 1 times [2024-12-05 08:22:25,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:25,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385184393] [2024-12-05 08:22:25,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:25,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:25,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:25,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385184393] [2024-12-05 08:22:25,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385184393] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:25,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:25,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-05 08:22:25,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060130993] [2024-12-05 08:22:25,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:25,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 08:22:25,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:25,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 08:22:25,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-05 08:22:25,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:25,942 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:25,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 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) [2024-12-05 08:22:25,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:25,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:25,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:25,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:25,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:25,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:25,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-12-05 08:22:25,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-05 08:22:26,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-05 08:22:26,423 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2024-12-05 08:22:26,423 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2024-12-05 08:22:26,423 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2024-12-05 08:22:26,423 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2024-12-05 08:22:26,423 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2024-12-05 08:22:26,423 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2024-12-05 08:22:26,424 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2024-12-05 08:22:26,424 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2024-12-05 08:22:26,424 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2024-12-05 08:22:26,424 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2024-12-05 08:22:26,424 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONMEMORY_LEAK (0 of 11 remaining) [2024-12-05 08:22:26,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-05 08:22:26,432 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2024-12-05 08:22:26,434 INFO L319 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2024-12-05 08:22:26,437 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:22:26,438 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:22:26,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:22:26,438 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8ffc656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:22:26,439 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-12-05 08:22:26,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:26,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:22:26,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:26,507 INFO L85 PathProgramCache]: Analyzing trace with hash 168632594, now seen corresponding path program 1 times [2024-12-05 08:22:26,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:26,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468778785] [2024-12-05 08:22:26,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:26,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:26,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:26,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468778785] [2024-12-05 08:22:26,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468778785] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:26,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:26,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 08:22:26,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559810420] [2024-12-05 08:22:26,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:26,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:22:26,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:26,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:22:26,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:22:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:26,537 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:26,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-12-05 08:22:26,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:26,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-05 08:22:26,564 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:22:26,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash 314711440, now seen corresponding path program 1 times [2024-12-05 08:22:26,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:26,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822824200] [2024-12-05 08:22:26,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:26,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:26,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:26,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822824200] [2024-12-05 08:22:26,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822824200] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:22:26,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054870551] [2024-12-05 08:22:26,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:26,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:22:26,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:22:26,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:22:26,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-05 08:22:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:26,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 08:22:26,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:22:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:26,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:22:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:26,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054870551] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:22:26,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:22:26,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-05 08:22:26,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907815592] [2024-12-05 08:22:26,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:22:26,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-05 08:22:26,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:26,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-05 08:22:26,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-05 08:22:26,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:26,712 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:26,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-12-05 08:22:26,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:26,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:26,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:26,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:26,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-05 08:22:26,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-05 08:22:26,939 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:22:26,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:26,939 INFO L85 PathProgramCache]: Analyzing trace with hash 229068946, now seen corresponding path program 2 times [2024-12-05 08:22:26,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:26,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867547015] [2024-12-05 08:22:26,940 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:22:26,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:26,954 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:22:26,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:22:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:27,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867547015] [2024-12-05 08:22:27,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867547015] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:22:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057887196] [2024-12-05 08:22:27,009 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:22:27,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:22:27,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:22:27,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:22:27,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-05 08:22:27,103 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:22:27,103 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:22:27,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 08:22:27,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:22:27,116 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:27,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:22:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:27,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057887196] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:22:27,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:22:27,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-12-05 08:22:27,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303094704] [2024-12-05 08:22:27,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:22:27,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-05 08:22:27,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:27,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-05 08:22:27,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-05 08:22:27,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:27,165 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:27,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 08:22:27,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:27,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:27,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:27,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:27,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:27,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:27,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-05 08:22:27,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-05 08:22:27,393 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:22:27,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:27,394 INFO L85 PathProgramCache]: Analyzing trace with hash -963538990, now seen corresponding path program 3 times [2024-12-05 08:22:27,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:27,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509412997] [2024-12-05 08:22:27,394 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:22:27,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:27,426 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-12-05 08:22:27,427 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-05 08:22:27,427 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 08:22:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:22:27,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 08:22:27,456 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 08:22:27,457 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-12-05 08:22:27,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 17 remaining) [2024-12-05 08:22:27,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 17 remaining) [2024-12-05 08:22:27,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 17 remaining) [2024-12-05 08:22:27,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 17 remaining) [2024-12-05 08:22:27,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK (11 of 17 remaining) [2024-12-05 08:22:27,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 17 remaining) [2024-12-05 08:22:27,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 17 remaining) [2024-12-05 08:22:27,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 17 remaining) [2024-12-05 08:22:27,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 17 remaining) [2024-12-05 08:22:27,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 17 remaining) [2024-12-05 08:22:27,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 17 remaining) [2024-12-05 08:22:27,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 17 remaining) [2024-12-05 08:22:27,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 17 remaining) [2024-12-05 08:22:27,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 17 remaining) [2024-12-05 08:22:27,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 17 remaining) [2024-12-05 08:22:27,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (0 of 17 remaining) [2024-12-05 08:22:27,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-05 08:22:27,461 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2024-12-05 08:22:27,461 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/2) [2024-12-05 08:22:27,462 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-05 08:22:27,462 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-05 08:22:27,496 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-05 08:22:27,498 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:22:27,509 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:22:27,509 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of2ForFork0 ======== [2024-12-05 08:22:27,510 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8ffc656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:22:27,510 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-12-05 08:22:27,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:27,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:27,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:27,671 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:27,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:27,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2123848033, now seen corresponding path program 1 times [2024-12-05 08:22:27,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:27,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787941221] [2024-12-05 08:22:27,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:27,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:27,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:27,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787941221] [2024-12-05 08:22:27,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787941221] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:27,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:27,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 08:22:27,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757481272] [2024-12-05 08:22:27,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:27,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:22:27,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:27,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:22:27,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:22:27,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:27,699 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:27,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-12-05 08:22:27,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:27,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-05 08:22:27,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:27,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:27,736 INFO L85 PathProgramCache]: Analyzing trace with hash 649644959, now seen corresponding path program 1 times [2024-12-05 08:22:27,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:27,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793217693] [2024-12-05 08:22:27,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:27,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:27,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:27,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:27,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793217693] [2024-12-05 08:22:27,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793217693] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:22:27,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098201103] [2024-12-05 08:22:27,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:27,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:22:27,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:22:27,765 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:22:27,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-05 08:22:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:27,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 08:22:27,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:22:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:27,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:22:27,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:27,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098201103] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:22:27,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:22:27,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-05 08:22:27,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720423196] [2024-12-05 08:22:27,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:22:27,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-05 08:22:27,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:27,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-05 08:22:27,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-05 08:22:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:27,889 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:27,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 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) [2024-12-05 08:22:27,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:27,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:27,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:27,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:27,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-05 08:22:28,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-05 08:22:28,131 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:28,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:28,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1425693591, now seen corresponding path program 2 times [2024-12-05 08:22:28,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:28,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589419727] [2024-12-05 08:22:28,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:22:28,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:28,140 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 08:22:28,140 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:22:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-05 08:22:28,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:28,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589419727] [2024-12-05 08:22:28,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589419727] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:28,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:28,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 08:22:28,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608674407] [2024-12-05 08:22:28,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:28,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:22:28,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:28,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:22:28,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:22:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:28,221 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:28,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-12-05 08:22:28,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:28,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:28,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:28,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:28,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:28,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:28,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:28,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-05 08:22:28,302 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:28,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1425693592, now seen corresponding path program 1 times [2024-12-05 08:22:28,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:28,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522803635] [2024-12-05 08:22:28,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:28,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:28,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522803635] [2024-12-05 08:22:28,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522803635] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:22:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845177525] [2024-12-05 08:22:28,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:28,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:22:28,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:22:28,374 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:22:28,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-05 08:22:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:28,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 08:22:28,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:22:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:28,493 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:22:28,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:22:28,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845177525] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:22:28,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:22:28,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-12-05 08:22:28,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926565372] [2024-12-05 08:22:28,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:22:28,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-05 08:22:28,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:28,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-05 08:22:28,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-05 08:22:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:28,538 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:28,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 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) [2024-12-05 08:22:28,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:28,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:28,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:28,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:28,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:28,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-05 08:22:28,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-05 08:22:28,797 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:28,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:28,797 INFO L85 PathProgramCache]: Analyzing trace with hash -936452456, now seen corresponding path program 2 times [2024-12-05 08:22:28,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:28,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267570114] [2024-12-05 08:22:28,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:22:28,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:28,811 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 08:22:28,811 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:22:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:28,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:28,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267570114] [2024-12-05 08:22:28,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267570114] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:28,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:28,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 08:22:28,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457675072] [2024-12-05 08:22:28,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:28,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:22:28,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:28,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:22:28,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:22:28,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:28,938 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:28,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-12-05 08:22:28,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:28,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:28,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:28,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:28,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:29,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:29,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:29,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:29,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-05 08:22:29,765 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:29,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:29,765 INFO L85 PathProgramCache]: Analyzing trace with hash -90335870, now seen corresponding path program 1 times [2024-12-05 08:22:29,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:29,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738656379] [2024-12-05 08:22:29,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:29,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:29,829 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:29,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:29,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738656379] [2024-12-05 08:22:29,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738656379] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:29,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:29,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:22:29,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407875738] [2024-12-05 08:22:29,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:29,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:22:29,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:29,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:22:29,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:22:29,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:29,831 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:29,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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) [2024-12-05 08:22:29,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:29,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:29,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:29,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:29,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:29,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:30,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:30,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-05 08:22:30,503 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:30,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:30,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1336821601, now seen corresponding path program 1 times [2024-12-05 08:22:30,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:30,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979475978] [2024-12-05 08:22:30,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:30,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:31,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:31,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979475978] [2024-12-05 08:22:31,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979475978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:31,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:31,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-05 08:22:31,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431016919] [2024-12-05 08:22:31,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:31,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 08:22:31,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:31,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 08:22:31,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-05 08:22:31,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:31,186 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:31,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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) [2024-12-05 08:22:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:31,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:31,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:22:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:33,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-05 08:22:33,631 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:33,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:33,631 INFO L85 PathProgramCache]: Analyzing trace with hash -373854838, now seen corresponding path program 1 times [2024-12-05 08:22:33,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:33,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398036536] [2024-12-05 08:22:33,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:33,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:34,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:34,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398036536] [2024-12-05 08:22:34,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398036536] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:34,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:34,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-05 08:22:34,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452810720] [2024-12-05 08:22:34,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:34,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 08:22:34,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:34,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 08:22:34,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-05 08:22:34,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:34,228 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:34,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 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) [2024-12-05 08:22:34,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:34,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:34,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:34,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:34,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:34,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:34,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:34,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:22:35,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-05 08:22:35,136 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:35,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:35,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2091745836, now seen corresponding path program 1 times [2024-12-05 08:22:35,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:35,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393757055] [2024-12-05 08:22:35,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:35,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:35,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:35,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393757055] [2024-12-05 08:22:35,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393757055] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:35,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:35,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-05 08:22:35,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759935081] [2024-12-05 08:22:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:35,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:22:35,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:35,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:22:35,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:22:35,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:35,333 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:35,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-12-05 08:22:35,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:35,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:35,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:35,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:35,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:35,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:35,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:35,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:22:35,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:38,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:22:38,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:38,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-05 08:22:38,721 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:38,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:38,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1466810032, now seen corresponding path program 1 times [2024-12-05 08:22:38,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:38,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101040632] [2024-12-05 08:22:38,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:38,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:45,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:45,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101040632] [2024-12-05 08:22:45,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101040632] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:45,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:45,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-05 08:22:45,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570226782] [2024-12-05 08:22:45,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:45,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-05 08:22:45,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:45,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-05 08:22:45,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-05 08:22:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:45,462 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:45,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:45,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:22:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-05 08:22:51,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-05 08:22:51,756 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:51,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:51,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1832207547, now seen corresponding path program 1 times [2024-12-05 08:22:51,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:51,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382247969] [2024-12-05 08:22:51,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:51,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:22:51,803 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:51,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:51,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382247969] [2024-12-05 08:22:51,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382247969] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:51,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:51,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-05 08:22:51,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485838556] [2024-12-05 08:22:51,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:51,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-05 08:22:51,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:51,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-05 08:22:51,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-05 08:22:51,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:51,804 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:51,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-12-05 08:22:51,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:51,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:51,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:51,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:51,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:51,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:51,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:51,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:22:51,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:51,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-12-05 08:22:51,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-05 08:22:52,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:52,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-05 08:22:52,638 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:52,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:52,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1758143752, now seen corresponding path program 2 times [2024-12-05 08:22:52,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:52,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911617112] [2024-12-05 08:22:52,639 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:22:52,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:52,681 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 08:22:52,682 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:22:56,431 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:22:56,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:22:56,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911617112] [2024-12-05 08:22:56,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911617112] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:22:56,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:22:56,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-05 08:22:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67748744] [2024-12-05 08:22:56,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:22:56,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-05 08:22:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:22:56,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-05 08:22:56,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-05 08:22:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:56,432 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:22:56,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 08:22:56,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:56,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:56,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:56,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:56,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:56,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:56,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:56,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:22:56,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:56,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-12-05 08:22:56,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:56,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:22:58,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:22:58,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-05 08:22:58,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-05 08:22:58,075 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:22:58,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:22:58,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2057024099, now seen corresponding path program 1 times [2024-12-05 08:22:58,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:22:58,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88636611] [2024-12-05 08:22:58,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:22:58,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:22:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:23:03,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:03,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88636611] [2024-12-05 08:23:03,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88636611] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:23:03,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:23:03,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-05 08:23:03,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998508357] [2024-12-05 08:23:03,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:23:03,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-05 08:23:03,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:03,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-05 08:23:03,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-12-05 08:23:03,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:03,011 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:03,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 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) [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:03,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-12-05 08:23:03,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:03,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-05 08:23:03,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-05 08:23:05,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:23:05,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-05 08:23:05,155 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:23:05,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash -304156827, now seen corresponding path program 2 times [2024-12-05 08:23:05,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:05,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023143715] [2024-12-05 08:23:05,156 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:23:05,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:05,209 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 08:23:05,209 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:23:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:23:09,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:09,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023143715] [2024-12-05 08:23:09,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023143715] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:23:09,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:23:09,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-05 08:23:09,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177861350] [2024-12-05 08:23:09,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:23:09,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-05 08:23:09,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:09,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-05 08:23:09,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-12-05 08:23:09,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:09,134 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:09,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 14 states have internal predecessors, (41), 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) [2024-12-05 08:23:09,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:09,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:09,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:09,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:09,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:09,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-12-05 08:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-05 08:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:23:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 08:23:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-05 08:23:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-05 08:23:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-05 08:23:16,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-05 08:23:16,535 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:23:16,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:16,535 INFO L85 PathProgramCache]: Analyzing trace with hash -276962504, now seen corresponding path program 3 times [2024-12-05 08:23:16,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:16,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122453848] [2024-12-05 08:23:16,535 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:23:16,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:16,583 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-05 08:23:16,583 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:23:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:23:19,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:19,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122453848] [2024-12-05 08:23:19,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122453848] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:23:19,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:23:19,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-05 08:23:19,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495709858] [2024-12-05 08:23:19,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:23:19,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-05 08:23:19,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:19,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-05 08:23:19,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-12-05 08:23:19,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:19,942 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:19,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-12-05 08:23:19,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:23:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:23:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-05 08:23:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-05 08:23:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-05 08:23:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-05 08:23:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-05 08:23:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-05 08:23:22,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2024-12-05 08:23:22,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2024-12-05 08:23:22,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2024-12-05 08:23:22,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2024-12-05 08:23:22,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2024-12-05 08:23:22,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2024-12-05 08:23:22,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2024-12-05 08:23:22,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2024-12-05 08:23:22,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2024-12-05 08:23:22,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2024-12-05 08:23:22,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONMEMORY_LEAK (0 of 11 remaining) [2024-12-05 08:23:22,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-05 08:23:22,107 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-12-05 08:23:22,107 INFO L319 ceAbstractionStarter]: Result for error location t_funThread1of2ForFork0 was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/3) [2024-12-05 08:23:22,110 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:23:22,111 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:23:22,111 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:23:22,112 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8ffc656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:23:22,112 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-12-05 08:23:22,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:22,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:22,174 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:23:22,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:22,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1542618960, now seen corresponding path program 1 times [2024-12-05 08:23:22,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:22,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425709827] [2024-12-05 08:23:22,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:22,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:22,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:22,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425709827] [2024-12-05 08:23:22,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425709827] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:23:22,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:23:22,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 08:23:22,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30999876] [2024-12-05 08:23:22,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:23:22,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:23:22,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:22,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:23:22,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:23:22,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:22,207 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:22,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 08:23:22,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:22,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:22,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-05 08:23:22,231 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:23:22,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:22,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1324444744, now seen corresponding path program 1 times [2024-12-05 08:23:22,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:22,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745911255] [2024-12-05 08:23:22,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:22,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:22,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:22,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:22,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745911255] [2024-12-05 08:23:22,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745911255] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:23:22,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738904771] [2024-12-05 08:23:22,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:22,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:22,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:23:22,266 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:23:22,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-05 08:23:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:22,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 08:23:22,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:23:22,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:22,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:23:22,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:22,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738904771] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:23:22,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:23:22,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-05 08:23:22,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692505466] [2024-12-05 08:23:22,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:23:22,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-05 08:23:22,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:22,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-05 08:23:22,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-05 08:23:22,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:22,404 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:22,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-12-05 08:23:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:22,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:22,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:22,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-05 08:23:22,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-05 08:23:22,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:23:22,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:22,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1698562736, now seen corresponding path program 2 times [2024-12-05 08:23:22,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:22,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106067759] [2024-12-05 08:23:22,633 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:23:22,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:22,645 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:23:22,646 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:23:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:22,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:22,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106067759] [2024-12-05 08:23:22,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106067759] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:23:22,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264999932] [2024-12-05 08:23:22,692 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:23:22,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:22,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:23:22,694 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:23:22,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-05 08:23:22,803 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:23:22,803 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:23:22,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 08:23:22,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:23:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:22,815 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:23:22,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:22,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264999932] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:23:22,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:23:22,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-12-05 08:23:22,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995609869] [2024-12-05 08:23:22,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:23:22,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-05 08:23:22,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:22,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-05 08:23:22,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-05 08:23:22,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:22,860 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:22,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 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) [2024-12-05 08:23:22,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:22,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:22,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:22,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:22,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-05 08:23:23,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:23,095 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:23:23,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:23,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2104564304, now seen corresponding path program 3 times [2024-12-05 08:23:23,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:23,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115838652] [2024-12-05 08:23:23,096 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:23:23,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:23,110 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-12-05 08:23:23,110 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-05 08:23:23,110 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 08:23:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:23:23,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 08:23:23,121 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 08:23:23,121 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-12-05 08:23:23,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 17 remaining) [2024-12-05 08:23:23,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 17 remaining) [2024-12-05 08:23:23,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 17 remaining) [2024-12-05 08:23:23,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 17 remaining) [2024-12-05 08:23:23,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK (11 of 17 remaining) [2024-12-05 08:23:23,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 17 remaining) [2024-12-05 08:23:23,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 17 remaining) [2024-12-05 08:23:23,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 17 remaining) [2024-12-05 08:23:23,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 17 remaining) [2024-12-05 08:23:23,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 17 remaining) [2024-12-05 08:23:23,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 17 remaining) [2024-12-05 08:23:23,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 17 remaining) [2024-12-05 08:23:23,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 17 remaining) [2024-12-05 08:23:23,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 17 remaining) [2024-12-05 08:23:23,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 17 remaining) [2024-12-05 08:23:23,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (0 of 17 remaining) [2024-12-05 08:23:23,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-05 08:23:23,123 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2024-12-05 08:23:23,124 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/3) [2024-12-05 08:23:23,124 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-05 08:23:23,124 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-05 08:23:23,157 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-05 08:23:23,159 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:23:23,172 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:23:23,172 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-05 08:23:23,173 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8ffc656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:23:23,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-12-05 08:23:23,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:23,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:23,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:23,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:23:23,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash -2110488803, now seen corresponding path program 1 times [2024-12-05 08:23:23,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:23,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899716225] [2024-12-05 08:23:23,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:23,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:23,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:23,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899716225] [2024-12-05 08:23:23,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899716225] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:23:23,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:23:23,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 08:23:23,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20288623] [2024-12-05 08:23:23,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:23:23,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:23:23,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:23,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:23:23,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:23:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:23,276 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:23,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-12-05 08:23:23,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:23,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:23,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-05 08:23:23,303 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:23:23,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:23,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1262775177, now seen corresponding path program 1 times [2024-12-05 08:23:23,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:23,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034549262] [2024-12-05 08:23:23,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:23,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:23,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:23,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:23,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034549262] [2024-12-05 08:23:23,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034549262] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:23:23,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42838046] [2024-12-05 08:23:23,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:23,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:23,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:23:23,338 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:23:23,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-05 08:23:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:23,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 08:23:23,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:23:23,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:23,477 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:23:23,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:23,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42838046] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:23:23,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:23:23,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-05 08:23:23,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067216784] [2024-12-05 08:23:23,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:23:23,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-05 08:23:23,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:23,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-05 08:23:23,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-05 08:23:23,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:23,488 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:23,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2024-12-05 08:23:23,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:23,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:23,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-05 08:23:23,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:23,714 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:23:23,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:23,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1979450781, now seen corresponding path program 2 times [2024-12-05 08:23:23,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:23,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297763768] [2024-12-05 08:23:23,714 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:23:23,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:23,725 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:23:23,725 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:23:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:23,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:23,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297763768] [2024-12-05 08:23:23,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297763768] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:23:23,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350883635] [2024-12-05 08:23:23,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:23:23,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:23,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:23:23,765 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:23:23,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-05 08:23:23,896 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-05 08:23:23,896 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:23:23,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 08:23:23,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:23:23,908 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:23,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:23:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:23,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350883635] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:23:23,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:23:23,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-12-05 08:23:23,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969481751] [2024-12-05 08:23:23,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:23:23,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-05 08:23:23,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:23,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-05 08:23:23,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-05 08:23:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:23,945 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:23,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 08:23:23,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:23,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:23,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:23,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:23,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:23,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:23,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-05 08:23:24,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:24,183 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-12-05 08:23:24,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:24,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1413499043, now seen corresponding path program 3 times [2024-12-05 08:23:24,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:24,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802147341] [2024-12-05 08:23:24,183 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-05 08:23:24,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:24,200 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-12-05 08:23:24,201 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-05 08:23:24,201 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 08:23:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 08:23:24,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-05 08:23:24,213 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-05 08:23:24,213 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK (11 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 17 remaining) [2024-12-05 08:23:24,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (0 of 17 remaining) [2024-12-05 08:23:24,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-05 08:23:24,215 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2024-12-05 08:23:24,215 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/4) [2024-12-05 08:23:24,215 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-05 08:23:24,215 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-12-05 08:23:24,243 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-05 08:23:24,245 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:23:24,258 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 08:23:24,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread4of4ForFork0 ======== [2024-12-05 08:23:24,258 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8ffc656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 08:23:24,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-12-05 08:23:24,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:24,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:24,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:24,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:24,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:24,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:24,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:24,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:31,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:23:31,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:31,841 INFO L85 PathProgramCache]: Analyzing trace with hash 825131589, now seen corresponding path program 1 times [2024-12-05 08:23:31,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:31,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58168855] [2024-12-05 08:23:31,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:31,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:31,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:31,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:31,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58168855] [2024-12-05 08:23:31,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58168855] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:23:31,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:23:31,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-05 08:23:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679238470] [2024-12-05 08:23:31,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:23:31,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:23:31,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:31,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:23:31,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:23:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:31,863 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:31,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 08:23:31,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:31,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:31,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-05 08:23:31,910 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:23:31,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:31,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1845463325, now seen corresponding path program 1 times [2024-12-05 08:23:31,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:31,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234130439] [2024-12-05 08:23:31,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:31,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:31,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:31,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:31,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234130439] [2024-12-05 08:23:31,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234130439] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:23:31,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531702595] [2024-12-05 08:23:31,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:31,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:31,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:23:31,948 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:23:31,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-05 08:23:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:32,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 08:23:32,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:23:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:32,099 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:23:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:32,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531702595] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:23:32,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:23:32,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-05 08:23:32,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984615809] [2024-12-05 08:23:32,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:23:32,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-05 08:23:32,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:32,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-05 08:23:32,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-05 08:23:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:32,111 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:32,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-12-05 08:23:32,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:32,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:32,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:32,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:32,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-05 08:23:32,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:32,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:23:32,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:32,357 INFO L85 PathProgramCache]: Analyzing trace with hash -255200586, now seen corresponding path program 2 times [2024-12-05 08:23:32,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:32,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113001005] [2024-12-05 08:23:32,357 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:23:32,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:32,367 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 08:23:32,367 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:23:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-05 08:23:32,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:32,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113001005] [2024-12-05 08:23:32,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113001005] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:23:32,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:23:32,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 08:23:32,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660399876] [2024-12-05 08:23:32,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:23:32,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:23:32,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:32,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:23:32,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:23:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:32,432 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:32,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 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) [2024-12-05 08:23:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:32,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:32,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:32,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-05 08:23:32,524 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:23:32,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:32,525 INFO L85 PathProgramCache]: Analyzing trace with hash -255200585, now seen corresponding path program 1 times [2024-12-05 08:23:32,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:32,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183371302] [2024-12-05 08:23:32,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:32,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:32,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:32,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183371302] [2024-12-05 08:23:32,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183371302] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-05 08:23:32,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837277237] [2024-12-05 08:23:32,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:32,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-05 08:23:32,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 08:23:32,575 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-05 08:23:32,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-05 08:23:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:32,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-05 08:23:32,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 08:23:32,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:32,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-05 08:23:32,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 08:23:32,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837277237] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-05 08:23:32,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-05 08:23:32,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-12-05 08:23:32,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052848911] [2024-12-05 08:23:32,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-05 08:23:32,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-05 08:23:32,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:32,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-05 08:23:32,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-05 08:23:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:32,777 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:32,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 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) [2024-12-05 08:23:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:32,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:32,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:32,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-05 08:23:33,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2116d5e3-d82d-4c2e-9dc3-d85662360de2/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-05 08:23:33,031 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:23:33,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:33,031 INFO L85 PathProgramCache]: Analyzing trace with hash 99521431, now seen corresponding path program 2 times [2024-12-05 08:23:33,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:33,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057808741] [2024-12-05 08:23:33,032 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:23:33,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:33,045 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 08:23:33,045 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:23:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:23:33,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:33,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057808741] [2024-12-05 08:23:33,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057808741] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:23:33,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:23:33,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 08:23:33,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222948217] [2024-12-05 08:23:33,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:23:33,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:23:33,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:33,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:23:33,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:23:33,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:33,180 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:33,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-05 08:23:33,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:33,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:33,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:33,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:33,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:33,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:23:53,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:53,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-05 08:23:53,645 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:23:53,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:23:53,645 INFO L85 PathProgramCache]: Analyzing trace with hash -388603741, now seen corresponding path program 1 times [2024-12-05 08:23:53,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:23:53,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520541360] [2024-12-05 08:23:53,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:23:53,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:23:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:23:53,685 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:23:53,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:23:53,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520541360] [2024-12-05 08:23:53,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520541360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:23:53,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:23:53,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-05 08:23:53,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569962193] [2024-12-05 08:23:53,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:23:53,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-05 08:23:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:23:53,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-05 08:23:53,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-05 08:23:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:23:53,687 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:23:53,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2024-12-05 08:23:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:23:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:23:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:23:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:23:53,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:25:21,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:25:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:25:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:25:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:25:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:25:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:25:21,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-05 08:25:21,319 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:25:21,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:25:21,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2096684670, now seen corresponding path program 1 times [2024-12-05 08:25:21,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:25:21,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050102711] [2024-12-05 08:25:21,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:25:21,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:25:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:25:22,429 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:25:22,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:25:22,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050102711] [2024-12-05 08:25:22,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050102711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:25:22,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:25:22,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-05 08:25:22,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708583033] [2024-12-05 08:25:22,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:25:22,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 08:25:22,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:25:22,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 08:25:22,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-05 08:25:22,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:25:22,430 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:25:22,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 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) [2024-12-05 08:25:22,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:25:22,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:25:22,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:25:22,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:25:22,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:25:22,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:25:22,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:25:22,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:26:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:26:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:26:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:26:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:26:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:26:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:26:43,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:26:43,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-05 08:26:43,460 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:26:43,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:26:43,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1728222128, now seen corresponding path program 2 times [2024-12-05 08:26:43,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:26:43,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708246026] [2024-12-05 08:26:43,460 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-05 08:26:43,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:26:43,481 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-05 08:26:43,482 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-05 08:26:44,016 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:26:44,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:26:44,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708246026] [2024-12-05 08:26:44,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708246026] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:26:44,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:26:44,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-05 08:26:44,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933967633] [2024-12-05 08:26:44,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:26:44,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-05 08:26:44,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:26:44,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-05 08:26:44,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-05 08:26:44,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:26:44,018 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:26:44,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 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) [2024-12-05 08:26:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:26:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:26:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:26:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:26:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:26:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:26:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:26:44,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:28:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:28:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:28:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:28:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:28:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:28:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:28:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:28:01,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:28:01,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-05 08:28:01,027 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:28:01,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:28:01,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1050365265, now seen corresponding path program 1 times [2024-12-05 08:28:01,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:28:01,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302333839] [2024-12-05 08:28:01,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:28:01,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:28:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:28:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:28:01,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:28:01,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302333839] [2024-12-05 08:28:01,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302333839] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:28:01,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:28:01,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-05 08:28:01,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929850847] [2024-12-05 08:28:01,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:28:01,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:28:01,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:28:01,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:28:01,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:28:01,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:28:01,178 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:28:01,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-12-05 08:28:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:28:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:28:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:28:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:28:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:28:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:28:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:28:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:28:01,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:28:01,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:28:01,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:29:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:29:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:29:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:29:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:29:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:29:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:29:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:29:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:29:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:29:10,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-05 08:29:10,003 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr10ASSERT_VIOLATIONMEMORY_LEAK === [t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-12-05 08:29:10,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 08:29:10,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1737050222, now seen corresponding path program 1 times [2024-12-05 08:29:10,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 08:29:10,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745915363] [2024-12-05 08:29:10,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 08:29:10,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 08:29:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 08:29:10,127 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-05 08:29:10,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 08:29:10,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745915363] [2024-12-05 08:29:10,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745915363] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 08:29:10,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 08:29:10,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-05 08:29:10,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172130396] [2024-12-05 08:29:10,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 08:29:10,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-05 08:29:10,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 08:29:10,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-05 08:29:10,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-05 08:29:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:29:10,129 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 08:29:10,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 08:29:10,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 08:29:10,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-05 08:29:10,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3