./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longest.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_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/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_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longest.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/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_ced2e682-548d-4642-b235-6353bbffbcf3/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 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:08:11,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:08:11,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-24 22:08:11,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:08:11,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:08:11,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:08:11,351 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:08:11,351 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:08:11,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:08:11,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:08:11,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:08:11,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:08:11,360 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:08:11,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:08:11,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:08:11,368 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:08:11,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:08:11,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:08:11,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:08:11,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:08:11,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:08:11,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:08:11,383 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:08:11,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:08:11,384 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:08:11,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:08:11,385 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:08:11,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:08:11,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:08:11,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:08:11,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:08:11,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:08:11,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:08:11,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:08:11,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:08:11,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:08:11,390 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-24 22:08:11,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:08:11,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:08:11,390 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:08:11,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:08:11,391 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:08:11,391 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:08:11,392 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:08:11,392 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_ced2e682-548d-4642-b235-6353bbffbcf3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d [2023-11-24 22:08:11,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:08:11,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:08:11,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:08:11,783 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:08:11,784 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:08:11,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/pthread/queue_ok_longest.i [2023-11-24 22:08:14,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:08:15,214 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:08:15,215 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/sv-benchmarks/c/pthread/queue_ok_longest.i [2023-11-24 22:08:15,244 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/data/4fe4a67f5/a1d08ce6a9034433a460b293490eb464/FLAG3fc703b1a [2023-11-24 22:08:15,260 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/data/4fe4a67f5/a1d08ce6a9034433a460b293490eb464 [2023-11-24 22:08:15,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:08:15,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:08:15,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:08:15,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:08:15,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:08:15,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:08:15" (1/1) ... [2023-11-24 22:08:15,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46053564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:15, skipping insertion in model container [2023-11-24 22:08:15,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:08:15" (1/1) ... [2023-11-24 22:08:15,327 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:08:15,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:08:15,943 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:08:16,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:08:16,133 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:08:16,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16 WrapperNode [2023-11-24 22:08:16,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:08:16,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:08:16,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:08:16,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:08:16,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,251 INFO L138 Inliner]: procedures = 275, calls = 61, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 226 [2023-11-24 22:08:16,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:08:16,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:08:16,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:08:16,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:08:16,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,295 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:08:16,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:08:16,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:08:16,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:08:16,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (1/1) ... [2023-11-24 22:08:16,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:08:16,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:16,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:16,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 22:08:16,412 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-24 22:08:16,413 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-24 22:08:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-24 22:08:16,413 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-24 22:08:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:08:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:08:16,413 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 22:08:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:08:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:08:16,414 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 22:08:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:08:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:08:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:08:16,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:08:16,419 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 22:08:16,657 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:08:16,660 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:08:17,197 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:08:17,549 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:08:17,549 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:08:17,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:08:17 BoogieIcfgContainer [2023-11-24 22:08:17,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:08:17,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:08:17,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:08:17,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:08:17,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:08:15" (1/3) ... [2023-11-24 22:08:17,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e60f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:08:17, skipping insertion in model container [2023-11-24 22:08:17,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:16" (2/3) ... [2023-11-24 22:08:17,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e60f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:08:17, skipping insertion in model container [2023-11-24 22:08:17,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:08:17" (3/3) ... [2023-11-24 22:08:17,564 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longest.i [2023-11-24 22:08:17,575 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 22:08:17,586 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:08:17,586 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-24 22:08:17,587 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:08:17,680 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-24 22:08:17,730 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:17,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:08:17,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:17,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:17,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 22:08:17,793 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:08:17,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2023-11-24 22:08:17,815 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;@5bcd497e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:17,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-24 22:08:18,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:18,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:18,139 INFO L85 PathProgramCache]: Analyzing trace with hash -559619901, now seen corresponding path program 1 times [2023-11-24 22:08:18,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:18,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176212959] [2023-11-24 22:08:18,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:18,703 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 22:08:18,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:18,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176212959] [2023-11-24 22:08:18,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176212959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:18,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:18,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:18,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445535315] [2023-11-24 22:08:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:18,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:18,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:18,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:18,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:18,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,747 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:18,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:18,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:18,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 22:08:18,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:18,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:18,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1218594584, now seen corresponding path program 1 times [2023-11-24 22:08:18,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:18,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573099186] [2023-11-24 22:08:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:19,763 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 22:08:19,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:19,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573099186] [2023-11-24 22:08:19,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573099186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:19,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:19,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:19,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937132424] [2023-11-24 22:08:19,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:19,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 22:08:19,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:19,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 22:08:19,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 22:08:19,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:19,770 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:19,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:19,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:21,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 22:08:21,181 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:21,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:21,181 INFO L85 PathProgramCache]: Analyzing trace with hash 878274202, now seen corresponding path program 1 times [2023-11-24 22:08:21,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:21,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404707845] [2023-11-24 22:08:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:21,691 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 22:08:21,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:21,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404707845] [2023-11-24 22:08:21,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404707845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:21,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:21,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:08:21,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668317121] [2023-11-24 22:08:21,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:21,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:08:21,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:21,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:08:21,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:21,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,699 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:21,699 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 22:08:21,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:21,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:21,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 22:08:21,845 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:21,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:21,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2087028611, now seen corresponding path program 1 times [2023-11-24 22:08:21,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:21,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987292883] [2023-11-24 22:08:21,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:21,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:22,504 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 22:08:22,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:22,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987292883] [2023-11-24 22:08:22,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987292883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:22,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:22,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:08:22,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040711483] [2023-11-24 22:08:22,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:22,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:08:22,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:22,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:08:22,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:22,508 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:22,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:22,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:22,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:22,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:22,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:23,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:23,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 22:08:23,820 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:23,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:23,821 INFO L85 PathProgramCache]: Analyzing trace with hash -722129008, now seen corresponding path program 1 times [2023-11-24 22:08:23,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:23,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259146516] [2023-11-24 22:08:23,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:23,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:23,905 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 22:08:23,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:23,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259146516] [2023-11-24 22:08:23,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259146516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:23,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:23,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:23,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564346320] [2023-11-24 22:08:23,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:23,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:08:23,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:23,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:08:23,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:08:23,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:23,910 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:23,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:23,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:23,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:23,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:23,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:23,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:30,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:30,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:30,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 22:08:30,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:30,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:30,239 INFO L85 PathProgramCache]: Analyzing trace with hash 546556225, now seen corresponding path program 1 times [2023-11-24 22:08:30,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:30,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242313384] [2023-11-24 22:08:30,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:30,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:30,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:30,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242313384] [2023-11-24 22:08:30,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242313384] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:30,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374294034] [2023-11-24 22:08:30,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:30,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:30,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:30,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:30,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 22:08:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:30,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-24 22:08:30,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:31,239 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 22:08:31,312 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 25 treesize of output 13 [2023-11-24 22:08:31,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:31,353 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 18 treesize of output 13 [2023-11-24 22:08:31,411 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 26 treesize of output 20 [2023-11-24 22:08:31,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-11-24 22:08:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:31,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:31,599 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_164 Int) (v_ArrVal_166 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_7| Int)) (or (< (+ |v_t1Thread1of1ForFork0_enqueue_~x#1_7| 2147483648) 0) (< 0 (+ 2147483650 (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_164)) |c_~#stored_elements~0.base| v_ArrVal_166) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 (+ |c_~#queue~0.offset| 3204)) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_7|)) (+ 3208 |c_~#queue~0.offset|)))))) is different from false [2023-11-24 22:08:31,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:31,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 51 [2023-11-24 22:08:31,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:31,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 67 [2023-11-24 22:08:31,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2023-11-24 22:08:31,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2023-11-24 22:08:31,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:31,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 51 [2023-11-24 22:08:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:33,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374294034] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:33,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:33,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2023-11-24 22:08:33,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451083973] [2023-11-24 22:08:33,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:33,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-24 22:08:33,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:33,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-24 22:08:33,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=291, Unknown=3, NotChecked=36, Total=420 [2023-11-24 22:08:33,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:33,899 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:33,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 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 22:08:33,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:33,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:33,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:33,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:33,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:33,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:34,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:34,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-24 22:08:34,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:34,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:34,528 INFO L85 PathProgramCache]: Analyzing trace with hash -236625567, now seen corresponding path program 1 times [2023-11-24 22:08:34,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:34,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441087504] [2023-11-24 22:08:34,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:34,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:35,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:35,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441087504] [2023-11-24 22:08:35,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441087504] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:35,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225819726] [2023-11-24 22:08:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:35,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:35,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:35,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:35,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 22:08:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:36,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-24 22:08:36,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:36,118 INFO L349 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2023-11-24 22:08:36,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 34 [2023-11-24 22:08:36,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:36,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 15 [2023-11-24 22:08:36,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:36,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2023-11-24 22:08:36,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:36,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:36,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:36,179 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 22:08:36,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-24 22:08:36,279 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 24 treesize of output 19 [2023-11-24 22:08:36,366 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 43 treesize of output 34 [2023-11-24 22:08:36,455 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 51 treesize of output 42 [2023-11-24 22:08:36,666 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 62 treesize of output 49 [2023-11-24 22:08:36,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:36,739 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 53 treesize of output 38 [2023-11-24 22:08:36,827 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 61 treesize of output 45 [2023-11-24 22:08:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:36,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:36,931 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_232 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_11| Int)) (< (select (let ((.cse0 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_232) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 (+ |c_~#queue~0.offset| 3204)) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_11|)) (+ 3208 |c_~#queue~0.offset|)) 2147483647)) is different from false [2023-11-24 22:08:36,948 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_231 Int) (v_ArrVal_232 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_11| Int)) (or (< (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|) v_ArrVal_231) (< (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_231)) |c_~#stored_elements~0.base| v_ArrVal_232) |c_~#queue~0.base|))) (store .cse0 (+ |c_~#queue~0.offset| (* (select .cse0 (+ |c_~#queue~0.offset| 3204)) 4)) |v_t1Thread1of1ForFork0_enqueue_~x#1_11|)) (+ 3208 |c_~#queue~0.offset|)) 2147483647))) is different from false [2023-11-24 22:08:37,072 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse2 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (let ((.cse3 (select .cse1 .cse2))) (or (forall ((v_ArrVal_231 Int) (v_ArrVal_232 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_11| Int) (v_ArrVal_228 Int)) (or (< (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse1 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_228) .cse2 v_ArrVal_231)) |c_~#stored_elements~0.base| v_ArrVal_232) |c_~#queue~0.base|))) (store .cse0 (+ |c_~#queue~0.offset| (* (select .cse0 (+ |c_~#queue~0.offset| 3204)) 4)) |v_t1Thread1of1ForFork0_enqueue_~x#1_11|)) (+ 3208 |c_~#queue~0.offset|)) 2147483647) (< (+ |c_t1Thread1of1ForFork0_enqueue_#t~post38#1| 1) v_ArrVal_228) (< (+ .cse3 1) v_ArrVal_231))) (= 800 .cse3)))) is different from false [2023-11-24 22:08:45,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-11-24 22:08:45,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225819726] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:45,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:45,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 24 [2023-11-24 22:08:45,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789511457] [2023-11-24 22:08:45,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:45,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-24 22:08:45,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:45,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-24 22:08:45,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=380, Unknown=10, NotChecked=132, Total=650 [2023-11-24 22:08:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:45,643 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:45,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.56) internal successors, (64), 25 states have internal predecessors, (64), 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 22:08:45,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:45,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:45,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:45,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:45,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:45,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:45,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:49,761 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_~#queue~0.base|)) (.cse6 (+ |c_~#queue~0.offset| 3204))) (let ((.cse2 (+ 3208 |c_~#queue~0.offset|)) (.cse1 (+ (* (select .cse0 .cse6) 4) |c_~#queue~0.offset|))) (and (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_11| Int)) (< (select (store .cse0 .cse1 |v_t1Thread1of1ForFork0_enqueue_~x#1_11|) .cse2) 2147483647)) (or (forall ((v_ArrVal_231 Int) (v_ArrVal_232 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_11| Int)) (let ((.cse3 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse4 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (or (< (+ (select .cse3 .cse4) 1) v_ArrVal_231) (< (select (let ((.cse5 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store .cse3 .cse4 v_ArrVal_231)) |c_~#stored_elements~0.base| v_ArrVal_232) |c_~#queue~0.base|))) (store .cse5 (+ |c_~#queue~0.offset| (* (select .cse5 .cse6) 4)) |v_t1Thread1of1ForFork0_enqueue_~x#1_11|)) .cse2) 2147483647)))) (= |c_t1Thread1of1ForFork0_enqueue_#t~mem39#1| 800)) (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_13| Int) (v_ArrVal_231 Int) (v_ArrVal_232 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_11| Int) (v_ArrVal_228 Int)) (let ((.cse7 (store .cse0 .cse1 |v_t1Thread1of1ForFork0_enqueue_~x#1_13|))) (let ((.cse8 (select .cse7 .cse6))) (or (< (+ (select .cse7 .cse2) 1) v_ArrVal_228) (= 800 .cse8) (< (select (let ((.cse9 (select (store (store |c_#memory_int| |c_~#queue~0.base| (store (store .cse7 .cse2 v_ArrVal_228) .cse6 v_ArrVal_231)) |c_~#stored_elements~0.base| v_ArrVal_232) |c_~#queue~0.base|))) (store .cse9 (+ (* (select .cse9 .cse6) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_11|)) .cse2) 2147483647) (< (+ .cse8 1) v_ArrVal_231)))))))) is different from false [2023-11-24 22:08:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 22:08:49,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-24 22:08:49,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:49,976 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:49,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:49,977 INFO L85 PathProgramCache]: Analyzing trace with hash 236117380, now seen corresponding path program 1 times [2023-11-24 22:08:49,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:49,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945373773] [2023-11-24 22:08:49,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:49,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:51,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:51,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:51,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945373773] [2023-11-24 22:08:51,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945373773] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:51,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469095542] [2023-11-24 22:08:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:51,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:51,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:51,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:51,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 22:08:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:51,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-24 22:08:51,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:51,508 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 35 treesize of output 19 [2023-11-24 22:08:51,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:51,560 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 26 treesize of output 19 [2023-11-24 22:08:51,635 INFO L349 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2023-11-24 22:08:51,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 35 [2023-11-24 22:08:51,694 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 33 treesize of output 17 [2023-11-24 22:08:51,708 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 25 treesize of output 13 [2023-11-24 22:08:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:51,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:51,857 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_294 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_15| Int)) (< 0 (+ 2147483650 (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_294) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_15|)) .cse1))))) is different from false [2023-11-24 22:08:51,868 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_294 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_15| Int)) (< 0 (+ 2147483650 (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|))) |c_~#stored_elements~0.base| v_ArrVal_294) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_15|)) .cse1))))) is different from false [2023-11-24 22:08:52,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:52,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 51 [2023-11-24 22:08:52,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:52,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 74 [2023-11-24 22:08:52,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2023-11-24 22:08:52,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-24 22:08:52,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:52,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 47 [2023-11-24 22:08:52,241 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:52,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469095542] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:52,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:52,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 27 [2023-11-24 22:08:52,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051835493] [2023-11-24 22:08:52,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:52,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-24 22:08:52,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-24 22:08:52,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=591, Unknown=2, NotChecked=102, Total=812 [2023-11-24 22:08:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:52,245 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:52,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.5714285714285716) internal successors, (72), 28 states have internal predecessors, (72), 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 22:08:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:52,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:52,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-24 22:08:52,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:53,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:53,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:53,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:53,248 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:53,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:53,248 INFO L85 PathProgramCache]: Analyzing trace with hash -982918871, now seen corresponding path program 1 times [2023-11-24 22:08:53,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:53,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235893725] [2023-11-24 22:08:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:53,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:53,360 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:53,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:53,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235893725] [2023-11-24 22:08:53,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235893725] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:53,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925788277] [2023-11-24 22:08:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:53,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:53,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:53,362 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:53,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 22:08:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:53,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:08:53,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:53,600 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:53,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 22:08:53,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925788277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:53,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 22:08:53,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-24 22:08:53,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801309363] [2023-11-24 22:08:53,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:53,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:08:53,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:53,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:08:53,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-24 22:08:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:53,605 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:53,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:53,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:53,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:53,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:53,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:53,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:53,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:53,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:53,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:53,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:53,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:53,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:53,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:53,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:53,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:53,960 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:53,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:53,960 INFO L85 PathProgramCache]: Analyzing trace with hash -405713276, now seen corresponding path program 1 times [2023-11-24 22:08:53,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:53,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718506616] [2023-11-24 22:08:53,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:53,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:54,026 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:08:54,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:54,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718506616] [2023-11-24 22:08:54,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718506616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:54,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:54,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:54,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62661830] [2023-11-24 22:08:54,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:54,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:08:54,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:54,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:08:54,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:08:54,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:54,029 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:54,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 22:08:54,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:54,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:54,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:54,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:54,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:54,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:54,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-24 22:08:54,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-24 22:08:54,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:54,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:54,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:54,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:54,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:54,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-24 22:08:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:54,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-24 22:08:54,442 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:08:54,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:54,443 INFO L85 PathProgramCache]: Analyzing trace with hash -712516148, now seen corresponding path program 1 times [2023-11-24 22:08:54,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:54,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510821455] [2023-11-24 22:08:54,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:54,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:56,020 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:56,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:56,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510821455] [2023-11-24 22:08:56,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510821455] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:56,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641318111] [2023-11-24 22:08:56,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:56,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:56,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:56,022 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:56,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-24 22:08:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:56,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 77 conjunts are in the unsatisfiable core [2023-11-24 22:08:56,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:56,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:56,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2023-11-24 22:08:56,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:56,272 INFO L349 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2023-11-24 22:08:56,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 30 [2023-11-24 22:08:56,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:56,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:56,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:56,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2023-11-24 22:08:56,398 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 24 treesize of output 19 [2023-11-24 22:08:56,463 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 43 treesize of output 34 [2023-11-24 22:08:56,538 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 38 treesize of output 31 [2023-11-24 22:08:56,716 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 44 treesize of output 33 [2023-11-24 22:08:56,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:56,760 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 35 treesize of output 26 [2023-11-24 22:08:56,806 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 54 treesize of output 41 [2023-11-24 22:08:56,897 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 49 treesize of output 38 [2023-11-24 22:08:57,061 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 51 treesize of output 38 [2023-11-24 22:08:57,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:57,109 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 42 treesize of output 31 [2023-11-24 22:08:57,173 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 61 treesize of output 46 [2023-11-24 22:08:57,237 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 56 treesize of output 43 [2023-11-24 22:08:57,288 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 48 treesize of output 36 [2023-11-24 22:08:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:57,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:57,421 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_19| Int) (v_ArrVal_487 (Array Int Int))) (< (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_487) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_19|)) .cse1)) 2147483647)) is different from false [2023-11-24 22:08:57,431 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_19| Int) (v_ArrVal_487 (Array Int Int))) (< (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|))) |c_~#stored_elements~0.base| v_ArrVal_487) |c_~#queue~0.base|))) (store .cse0 (+ |c_~#queue~0.offset| (* (select .cse0 .cse1) 4)) |v_t1Thread1of1ForFork0_enqueue_~x#1_19|)) .cse1)) 2147483647)) is different from false [2023-11-24 22:08:57,533 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (let ((.cse4 (select .cse2 .cse3))) (or (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_19| Int) (v_ArrVal_483 Int) (v_ArrVal_487 (Array Int Int))) (< (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse2 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_483) .cse3 (+ .cse4 1))) |c_~#stored_elements~0.base| v_ArrVal_487) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_19|)) .cse1)) 2147483647)) (= 800 .cse4)))) is different from false [2023-11-24 22:08:57,784 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_19| Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_483 Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_21| Int) (v_ArrVal_487 (Array Int Int))) (let ((.cse2 (+ |c_~#queue~0.offset| 3204)) (.cse3 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|))))) (let ((.cse4 (let ((.cse5 (select (store .cse3 |c_~#stored_elements~0.base| v_ArrVal_481) |c_~#queue~0.base|))) (store .cse5 (+ |c_~#queue~0.offset| (* (select .cse5 .cse2) 4)) |v_t1Thread1of1ForFork0_enqueue_~x#1_21|)))) (let ((.cse0 (select .cse4 .cse2))) (or (= .cse0 800) (< (select (let ((.cse1 (select (store (store .cse3 |c_~#queue~0.base| (store (store .cse4 (+ 3208 |c_~#queue~0.offset|) v_ArrVal_483) .cse2 (+ .cse0 1))) |c_~#stored_elements~0.base| v_ArrVal_487) |c_~#queue~0.base|))) (store .cse1 (+ (* (select .cse1 .cse2) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_19|)) .cse2) 2147483647)))))) is different from false [2023-11-24 22:08:57,827 WARN L854 $PredicateComparison]: unable to prove that (or (= |c_t1Thread1of1ForFork0_enqueue_#t~mem39#1| 800) (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_19| Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_483 Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_21| Int) (v_ArrVal_487 (Array Int Int))) (let ((.cse2 (+ |c_~#queue~0.offset| 3204)) (.cse3 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse6 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse7 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store .cse6 .cse7 (+ (select .cse6 .cse7) 1)))))) (let ((.cse4 (let ((.cse5 (select (store .cse3 |c_~#stored_elements~0.base| v_ArrVal_481) |c_~#queue~0.base|))) (store .cse5 (+ (* (select .cse5 .cse2) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_21|)))) (let ((.cse0 (select .cse4 .cse2))) (or (= 800 .cse0) (< (select (let ((.cse1 (select (store (store .cse3 |c_~#queue~0.base| (store (store .cse4 (+ 3208 |c_~#queue~0.offset|) v_ArrVal_483) .cse2 (+ .cse0 1))) |c_~#stored_elements~0.base| v_ArrVal_487) |c_~#queue~0.base|))) (store .cse1 (+ (* 4 (select .cse1 .cse2)) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_19|)) .cse2) 2147483647))))))) is different from false [2023-11-24 22:08:57,855 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse8 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (let ((.cse0 (select .cse7 .cse8))) (or (= 800 .cse0) (forall ((v_ArrVal_477 Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_19| Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_483 Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_21| Int) (v_ArrVal_487 (Array Int Int))) (let ((.cse3 (+ |c_~#queue~0.offset| 3204)) (.cse4 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse7 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_477) .cse8 (+ .cse0 1))))) (let ((.cse5 (let ((.cse6 (select (store .cse4 |c_~#stored_elements~0.base| v_ArrVal_481) |c_~#queue~0.base|))) (store .cse6 (+ |c_~#queue~0.offset| (* (select .cse6 .cse3) 4)) |v_t1Thread1of1ForFork0_enqueue_~x#1_21|)))) (let ((.cse1 (select .cse5 .cse3))) (or (= 800 .cse1) (< (select (let ((.cse2 (select (store (store .cse4 |c_~#queue~0.base| (store (store .cse5 (+ 3208 |c_~#queue~0.offset|) v_ArrVal_483) .cse3 (+ .cse1 1))) |c_~#stored_elements~0.base| v_ArrVal_487) |c_~#queue~0.base|))) (store .cse2 (+ (* (select .cse2 .cse3) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_19|)) .cse3) 2147483647))))))))) is different from false [2023-11-24 22:08:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2023-11-24 22:08:58,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641318111] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:58,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:58,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 14] total 38 [2023-11-24 22:08:58,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577935092] [2023-11-24 22:08:58,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:58,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-24 22:08:58,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:58,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-24 22:08:58,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=855, Unknown=19, NotChecked=414, Total=1560 [2023-11-24 22:08:58,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:58,436 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:58,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 39 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:08:58,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:58,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:58,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:58,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:58,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:58,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:08:58,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:08:58,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-11-24 22:08:58,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:08:58,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:58,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:09:00,319 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (let ((.cse4 (select .cse2 .cse3))) (and (or (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_19| Int) (v_ArrVal_487 (Array Int Int))) (< (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store .cse2 .cse3 (+ .cse4 1))) |c_~#stored_elements~0.base| v_ArrVal_487) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_19|)) .cse1)) 2147483647)) (= |c_t1Thread1of1ForFork0_enqueue_#t~mem39#1| 800)) (< .cse4 2147483647)))) is different from false [2023-11-24 22:09:00,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:09:00,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:00,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:00,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:09:00,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:00,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 22:09:00,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 22:09:00,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-24 22:09:00,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 22:09:00,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:09:00,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 22:09:00,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-24 22:09:00,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-24 22:09:00,523 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-24 22:09:00,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:09:00,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1308815999, now seen corresponding path program 2 times [2023-11-24 22:09:00,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:09:00,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564910547] [2023-11-24 22:09:00,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:09:00,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:09:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:09:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:09:03,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:09:03,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564910547] [2023-11-24 22:09:03,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564910547] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:09:03,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012804399] [2023-11-24 22:09:03,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:09:03,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:09:03,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:09:03,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:09:03,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced2e682-548d-4642-b235-6353bbffbcf3/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-24 22:09:03,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 22:09:03,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:09:03,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 99 conjunts are in the unsatisfiable core [2023-11-24 22:09:03,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:09:03,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:03,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2023-11-24 22:09:03,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:03,578 INFO L349 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2023-11-24 22:09:03,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 30 [2023-11-24 22:09:03,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:03,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:03,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:03,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2023-11-24 22:09:03,701 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 24 treesize of output 19 [2023-11-24 22:09:03,784 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 43 treesize of output 34 [2023-11-24 22:09:03,867 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 51 treesize of output 42 [2023-11-24 22:09:04,038 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 51 treesize of output 38 [2023-11-24 22:09:04,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:04,099 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 42 treesize of output 31 [2023-11-24 22:09:04,174 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 61 treesize of output 46 [2023-11-24 22:09:04,288 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 69 treesize of output 54 [2023-11-24 22:09:04,497 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 69 treesize of output 54 [2023-11-24 22:09:04,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:09:04,570 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 60 treesize of output 43 [2023-11-24 22:09:04,653 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 79 treesize of output 58 [2023-11-24 22:09:04,890 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 99 treesize of output 74 [2023-11-24 22:09:05,536 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 314 treesize of output 243