./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:07:47,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:07:47,565 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-24 22:07:47,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:07:47,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:07:47,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:07:47,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:07:47,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:07:47,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:07:47,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:07:47,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:07:47,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:07:47,603 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:07:47,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:07:47,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:07:47,605 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:07:47,605 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:07:47,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:07:47,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:07:47,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:07:47,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:07:47,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:07:47,609 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:07:47,610 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:07:47,610 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:07:47,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:07:47,611 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:07:47,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:07:47,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:07:47,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:07:47,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:07:47,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:47,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:07:47,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:07:47,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:07:47,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:07:47,616 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-24 22:07:47,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:07:47,617 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:07:47,617 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:07:47,617 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:07:47,618 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:07:47,618 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:07:47,619 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:07:47,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2023-11-24 22:07:47,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:07:47,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:07:47,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:07:47,902 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:07:47,903 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:07:47,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2023-11-24 22:07:51,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:07:51,430 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:07:51,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2023-11-24 22:07:51,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/data/19d9da043/e695e31c0f474c4189e38fbfa16c1c47/FLAG19de27580 [2023-11-24 22:07:51,485 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/data/19d9da043/e695e31c0f474c4189e38fbfa16c1c47 [2023-11-24 22:07:51,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:07:51,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:07:51,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:51,496 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:07:51,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:07:51,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:51" (1/1) ... [2023-11-24 22:07:51,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653e60fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:51, skipping insertion in model container [2023-11-24 22:07:51,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:07:51" (1/1) ... [2023-11-24 22:07:51,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:07:52,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:52,080 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:07:52,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:07:52,234 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:07:52,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52 WrapperNode [2023-11-24 22:07:52,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:07:52,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:07:52,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:07:52,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:07:52,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,313 INFO L138 Inliner]: procedures = 263, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2023-11-24 22:07:52,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:07:52,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:07:52,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:07:52,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:07:52,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:07:52,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:07:52,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:07:52,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:07:52,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (1/1) ... [2023-11-24 22:07:52,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:52,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:52,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 22:07:52,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 22:07:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:07:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 22:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 22:07:52,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:07:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-24 22:07:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-24 22:07:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:07:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:07:52,482 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 22:07:52,721 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:07:52,726 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:07:52,933 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:07:53,054 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:07:53,055 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 22:07:53,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:53 BoogieIcfgContainer [2023-11-24 22:07:53,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:07:53,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:07:53,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:07:53,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:07:53,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:07:51" (1/3) ... [2023-11-24 22:07:53,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4149050d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:53, skipping insertion in model container [2023-11-24 22:07:53,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:07:52" (2/3) ... [2023-11-24 22:07:53,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4149050d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:53, skipping insertion in model container [2023-11-24 22:07:53,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:53" (3/3) ... [2023-11-24 22:07:53,066 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2023-11-24 22:07:53,075 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 22:07:53,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:07:53,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-24 22:07:53,088 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:07:53,236 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 22:07:53,305 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:07:53,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:07:53,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:53,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:07:53,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 22:07:53,366 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:07:53,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2023-11-24 22:07:53,387 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c35ebc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:07:53,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 22:07:53,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:07:53,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:53,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2004464847, now seen corresponding path program 1 times [2023-11-24 22:07:53,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:53,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451470397] [2023-11-24 22:07:53,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:53,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:53,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:53,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451470397] [2023-11-24 22:07:53,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451470397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:53,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:53,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:07:53,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522549869] [2023-11-24 22:07:53,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:53,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:07:53,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:53,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:07:53,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:07:53,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:53,997 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:53,998 INFO L496 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) [2023-11-24 22:07:53,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:54,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 22:07:54,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:07:54,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1047130427, now seen corresponding path program 1 times [2023-11-24 22:07:54,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:54,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855836662] [2023-11-24 22:07:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:54,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:54,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:54,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855836662] [2023-11-24 22:07:54,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855836662] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:54,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664092579] [2023-11-24 22:07:54,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:54,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:54,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:54,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:54,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 22:07:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:54,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:07:54,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:54,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:54,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664092579] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:54,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:54,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-24 22:07:54,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646454113] [2023-11-24 22:07:54,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:54,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 22:07:54,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:54,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 22:07:54,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-24 22:07:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:54,522 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:54,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 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) [2023-11-24 22:07:54,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:54,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:54,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:54,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-24 22:07:54,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:54,897 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:07:54,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:54,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1070690949, now seen corresponding path program 2 times [2023-11-24 22:07:54,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:54,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943003989] [2023-11-24 22:07:54,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:54,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:55,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:55,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943003989] [2023-11-24 22:07:55,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943003989] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:55,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627563629] [2023-11-24 22:07:55,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:07:55,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:55,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:55,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:55,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 22:07:55,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 22:07:55,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:07:55,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-24 22:07:55,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:55,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-24 22:07:55,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:55,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-24 22:07:55,381 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 14 treesize of output 10 [2023-11-24 22:07:55,397 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:07:55,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:55,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627563629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:55,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:07:55,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2023-11-24 22:07:55,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385742438] [2023-11-24 22:07:55,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:55,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:07:55,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:55,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:07:55,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-24 22:07:55,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:55,402 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:55,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:55,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:55,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:55,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:55,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:55,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:55,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:55,804 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:07:55,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:55,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1168318672, now seen corresponding path program 1 times [2023-11-24 22:07:55,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:55,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214486838] [2023-11-24 22:07:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:55,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:55,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:55,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214486838] [2023-11-24 22:07:55,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214486838] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:55,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193811024] [2023-11-24 22:07:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:55,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:55,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:55,971 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:55,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 22:07:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:56,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:07:56,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:56,126 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:56,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:56,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193811024] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:56,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:56,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-11-24 22:07:56,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933599911] [2023-11-24 22:07:56,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:56,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-24 22:07:56,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:56,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-24 22:07:56,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-24 22:07:56,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:56,242 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:56,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 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) [2023-11-24 22:07:56,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:56,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:56,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:56,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:56,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:56,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:56,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:07:56,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:56,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:56,647 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:07:56,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:56,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1242400848, now seen corresponding path program 2 times [2023-11-24 22:07:56,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:56,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536137400] [2023-11-24 22:07:56,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:56,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:57,040 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:07:57,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:57,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536137400] [2023-11-24 22:07:57,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536137400] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:57,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410762199] [2023-11-24 22:07:57,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:07:57,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:57,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:57,047 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:57,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 22:07:57,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 22:07:57,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:07:57,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-24 22:07:57,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:57,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-24 22:07:57,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:07:57,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-24 22:07:57,421 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 14 treesize of output 10 [2023-11-24 22:07:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-24 22:07:57,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:07:57,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410762199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:57,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:07:57,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 20 [2023-11-24 22:07:57,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898782137] [2023-11-24 22:07:57,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:57,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:07:57,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:57,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:07:57,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2023-11-24 22:07:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:57,452 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:57,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2023-11-24 22:07:57,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:57,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:57,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:57,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:07:57,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:57,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:57,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:57,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:57,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:07:57,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:57,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:57,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:57,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:07:57,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:57,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1664770248, now seen corresponding path program 1 times [2023-11-24 22:07:57,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:57,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711978453] [2023-11-24 22:07:57,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:57,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:57,941 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-24 22:07:57,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:57,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711978453] [2023-11-24 22:07:57,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711978453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:07:57,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:07:57,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:07:57,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798268617] [2023-11-24 22:07:57,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:07:57,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:07:57,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:57,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:07:57,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:07:57,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:57,945 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:57,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:07:57,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:57,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:57,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:57,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:07:57,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:57,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:58,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:58,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:58,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:07:58,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:58,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:58,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 22:07:58,118 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:07:58,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:58,119 INFO L85 PathProgramCache]: Analyzing trace with hash 315115213, now seen corresponding path program 1 times [2023-11-24 22:07:58,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:58,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093592663] [2023-11-24 22:07:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:58,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 22:07:58,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:07:58,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093592663] [2023-11-24 22:07:58,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093592663] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:07:58,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979176854] [2023-11-24 22:07:58,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:58,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:07:58,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:07:58,563 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:07:58,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-24 22:07:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:07:58,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-24 22:07:58,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:07:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 22:07:58,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:07:58,990 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 22:07:58,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979176854] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:07:58,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:07:58,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2023-11-24 22:07:58,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913823606] [2023-11-24 22:07:58,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:07:58,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-24 22:07:58,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:07:58,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-24 22:07:58,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-24 22:07:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:58,995 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:07:58,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.260869565217391) internal successors, (52), 22 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) [2023-11-24 22:07:58,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:58,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:58,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:58,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:07:58,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:58,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:58,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:07:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:07:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:07:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:07:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:07:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:07:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:07:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:07:59,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-24 22:07:59,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-24 22:07:59,482 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:07:59,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:59,483 INFO L85 PathProgramCache]: Analyzing trace with hash 688461571, now seen corresponding path program 2 times [2023-11-24 22:07:59,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:59,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727644556] [2023-11-24 22:07:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:59,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:07:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:00,091 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:00,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:00,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727644556] [2023-11-24 22:08:00,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727644556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:00,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:00,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-24 22:08:00,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201391675] [2023-11-24 22:08:00,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:00,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 22:08:00,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:00,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 22:08:00,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-24 22:08:00,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:00,096 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:00,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:00,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:00,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:00,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:00,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:00,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:00,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:00,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:00,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:00,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 22:08:00,430 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:08:00,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:00,431 INFO L85 PathProgramCache]: Analyzing trace with hash -134435151, now seen corresponding path program 1 times [2023-11-24 22:08:00,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:00,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686241146] [2023-11-24 22:08:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:00,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:01,056 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:01,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:01,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686241146] [2023-11-24 22:08:01,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686241146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:01,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:01,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-24 22:08:01,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887479597] [2023-11-24 22:08:01,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:01,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 22:08:01,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:01,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 22:08:01,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-24 22:08:01,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:01,061 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:01,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 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) [2023-11-24 22:08:01,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:01,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:01,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:01,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:01,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:01,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:01,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:01,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:01,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:01,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:01,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:01,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:01,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:01,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:01,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:01,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:01,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:01,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:01,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 22:08:01,425 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:08:01,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:01,426 INFO L85 PathProgramCache]: Analyzing trace with hash -199647998, now seen corresponding path program 1 times [2023-11-24 22:08:01,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:01,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135596200] [2023-11-24 22:08:01,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:01,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:01,562 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:01,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:01,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135596200] [2023-11-24 22:08:01,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135596200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:01,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:01,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:08:01,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523671642] [2023-11-24 22:08:01,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:01,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:08:01,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:01,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:08:01,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:08:01,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:01,571 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:01,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-11-24 22:08:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:01,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:01,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:01,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:01,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:01,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:01,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:01,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:01,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:01,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-24 22:08:01,722 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:08:01,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:01,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1869245905, now seen corresponding path program 1 times [2023-11-24 22:08:01,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:01,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648240389] [2023-11-24 22:08:01,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:01,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:03,108 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:03,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:03,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648240389] [2023-11-24 22:08:03,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648240389] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:03,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236734185] [2023-11-24 22:08:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:03,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:03,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:03,111 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:03,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-24 22:08:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:03,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-24 22:08:03,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:03,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-24 22:08:03,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:03,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-24 22:08:03,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2023-11-24 22:08:04,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2023-11-24 22:08:04,310 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 21 treesize of output 15 [2023-11-24 22:08:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:04,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:05,469 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#t1~0#1.base_46| Int) (v_ArrVal_395 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_23| Int) (|ULTIMATE.start_cache_entry_addref_#t~post32#1| Int)) (or (< 0 (+ 2147483650 (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_46| v_ArrVal_395) |c_~#cache~0.base|) |c_~#cache~0.offset| (+ |ULTIMATE.start_cache_entry_addref_#t~post32#1| 1)) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_23|))) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_23| (+ 28 |c_~#cache~0.offset|)) (< |v_ULTIMATE.start_main_~#t1~0#1.base_46| (+ |c_#StackHeapBarrier| 1)))) is different from false [2023-11-24 22:08:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:05,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236734185] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:05,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:05,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 11] total 37 [2023-11-24 22:08:05,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583800127] [2023-11-24 22:08:05,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:05,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-24 22:08:05,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:05,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-24 22:08:05,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1189, Unknown=1, NotChecked=72, Total=1482 [2023-11-24 22:08:05,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:05,942 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:05,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.3684210526315788) internal successors, (90), 38 states have internal predecessors, (90), 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) [2023-11-24 22:08:05,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:05,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:05,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:05,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:05,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:05,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:05,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:05,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:05,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:05,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:05,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-24 22:08:08,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:08,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-24 22:08:08,772 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:08:08,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:08,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2112047930, now seen corresponding path program 1 times [2023-11-24 22:08:08,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:08,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147408711] [2023-11-24 22:08:08,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:08,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:10,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:10,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147408711] [2023-11-24 22:08:10,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147408711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:10,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071254552] [2023-11-24 22:08:10,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:10,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:10,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:10,038 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:10,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-24 22:08:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:10,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-24 22:08:10,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:10,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-24 22:08:10,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:10,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-24 22:08:10,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2023-11-24 22:08:11,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2023-11-24 22:08:11,253 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 21 treesize of output 15 [2023-11-24 22:08:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:11,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:14,399 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#t1~0#1.base_47| Int) (|ULTIMATE.start_cache_entry_addref_#t~post32#1| Int) (v_ArrVal_478 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_27| Int)) (or (< (select (store (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#t1~0#1.base_47| v_ArrVal_478) |c_~#cache~0.base|) |c_~#cache~0.offset| (+ |ULTIMATE.start_cache_entry_addref_#t~post32#1| 1)) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_27|) 2147483647) (< |v_ULTIMATE.start_main_~#t1~0#1.base_47| (+ |c_#StackHeapBarrier| 1)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_27| (+ 28 |c_~#cache~0.offset|)))) is different from false [2023-11-24 22:08:14,839 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:14,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071254552] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:14,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:14,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 11] total 38 [2023-11-24 22:08:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640614735] [2023-11-24 22:08:14,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:14,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-24 22:08:14,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:14,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-24 22:08:14,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1253, Unknown=2, NotChecked=74, Total=1560 [2023-11-24 22:08:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:14,850 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:14,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.3846153846153846) internal successors, (93), 39 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:14,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:14,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:14,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:14,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:14,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:14,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:14,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:14,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:14,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:14,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-11-24 22:08:14,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:16,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:16,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:16,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:16,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-24 22:08:16,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-24 22:08:16,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:17,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-24 22:08:17,061 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:08:17,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:17,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1251279858, now seen corresponding path program 1 times [2023-11-24 22:08:17,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:17,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288215232] [2023-11-24 22:08:17,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:17,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:17,190 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:17,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:17,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288215232] [2023-11-24 22:08:17,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288215232] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:17,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647662236] [2023-11-24 22:08:17,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:17,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:17,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:17,193 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:17,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-24 22:08:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:17,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:08:17,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:17,426 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:17,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:17,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647662236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:17,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:17,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-24 22:08:17,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791769781] [2023-11-24 22:08:17,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:17,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:08:17,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:08:17,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-24 22:08:17,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,431 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:17,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 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) [2023-11-24 22:08:17,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:17,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:17,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:17,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:17,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:17,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:17,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:17,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:17,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:17,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-11-24 22:08:17,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-11-24 22:08:17,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-24 22:08:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:17,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:17,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:17,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-24 22:08:17,844 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:08:17,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:17,844 INFO L85 PathProgramCache]: Analyzing trace with hash 134970217, now seen corresponding path program 1 times [2023-11-24 22:08:17,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:17,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597956095] [2023-11-24 22:08:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:17,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-24 22:08:17,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:17,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597956095] [2023-11-24 22:08:17,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597956095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:17,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:17,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:17,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635261372] [2023-11-24 22:08:17,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:17,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:08:17,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:17,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:08:17,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:08:17,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,928 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:17,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-11-24 22:08:17,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:17,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:17,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:17,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:17,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:17,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:17,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:17,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:17,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-11-24 22:08:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-24 22:08:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-24 22:08:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:18,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-24 22:08:18,326 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:08:18,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:18,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1480486173, now seen corresponding path program 1 times [2023-11-24 22:08:18,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:18,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494946607] [2023-11-24 22:08:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:18,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:18,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494946607] [2023-11-24 22:08:18,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494946607] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:18,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481711731] [2023-11-24 22:08:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:18,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:18,939 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:18,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-24 22:08:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:19,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-24 22:08:19,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:19,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 22:08:19,777 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 17 treesize of output 9 [2023-11-24 22:08:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:19,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:19,874 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 44 treesize of output 36 [2023-11-24 22:08:20,044 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-24 22:08:20,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481711731] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:20,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:20,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 12] total 32 [2023-11-24 22:08:20,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863004613] [2023-11-24 22:08:20,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:20,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-24 22:08:20,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:20,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-24 22:08:20,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2023-11-24 22:08:20,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:20,048 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:20,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.4375) internal successors, (110), 32 states have internal predecessors, (110), 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) [2023-11-24 22:08:20,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:20,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-24 22:08:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-24 22:08:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-24 22:08:21,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:21,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-24 22:08:21,584 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 22:08:21,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:21,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1347661521, now seen corresponding path program 1 times [2023-11-24 22:08:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:21,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549025486] [2023-11-24 22:08:21,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:23,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:23,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549025486] [2023-11-24 22:08:23,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549025486] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:23,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492506691] [2023-11-24 22:08:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:23,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:23,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:23,416 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:23,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c50856d2-a487-4d4e-acb9-106153595dd8/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-24 22:08:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:23,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-24 22:08:23,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:23,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-11-24 22:08:23,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-24 22:08:24,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2023-11-24 22:08:24,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2023-11-24 22:08:24,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2023-11-24 22:08:25,164 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 40 treesize of output 30 [2023-11-24 22:08:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:25,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:33,365 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 22:08:33,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492506691] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:33,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:33,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 52 [2023-11-24 22:08:33,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595148718] [2023-11-24 22:08:33,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:33,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-11-24 22:08:33,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:33,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-11-24 22:08:33,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=2346, Unknown=8, NotChecked=0, Total=2756 [2023-11-24 22:08:33,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:33,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:33,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.30188679245283) internal successors, (122), 52 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:33,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:33,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:33,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:33,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:33,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:33,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:08:33,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:33,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 22:08:33,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:33,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-11-24 22:08:33,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-24 22:08:33,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:33,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:33,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-24 22:08:33,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.