./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a6a849c67042a7f19e24482aaf2265ac4440f1948afd354bf5dc3abb8c419d2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:01:54,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:01:54,747 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:01:54,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:01:54,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:01:54,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:01:54,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:01:54,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:01:54,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:01:54,821 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:01:54,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:01:54,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:01:54,822 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:01:54,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:01:54,823 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:01:54,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:01:54,823 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:01:54,823 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:01:54,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:01:54,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:01:54,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:01:54,824 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:01:54,824 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:01:54,824 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:01:54,824 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:01:54,824 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:01:54,824 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:01:54,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:01:54,824 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:01:54,824 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:01:54,825 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:01:54,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:01:54,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:01:54,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:01:54,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:01:54,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:01:54,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:01:54,826 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:01:54,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:01:54,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:01:54,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:01:54,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:01:54,827 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:01:54,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:01:54,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:01:54,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:01:54,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:01:54,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:01:54,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:01:54,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:01:54,828 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB 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 -> Automizer 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 -> 5a6a849c67042a7f19e24482aaf2265ac4440f1948afd354bf5dc3abb8c419d2 [2024-11-28 03:01:55,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:01:55,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:01:55,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:01:55,231 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:01:55,231 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:01:55,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c [2024-11-28 03:01:58,781 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data/6b7dbe6aa/ab1c787df4594b0798722613693b3550/FLAG4e9e1b82c [2024-11-28 03:01:59,105 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:01:59,105 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c [2024-11-28 03:01:59,115 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data/6b7dbe6aa/ab1c787df4594b0798722613693b3550/FLAG4e9e1b82c [2024-11-28 03:01:59,146 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data/6b7dbe6aa/ab1c787df4594b0798722613693b3550 [2024-11-28 03:01:59,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:01:59,153 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:01:59,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:01:59,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:01:59,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:01:59,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3096e431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59, skipping insertion in model container [2024-11-28 03:01:59,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:01:59,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:01:59,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:01:59,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:01:59,489 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:01:59,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59 WrapperNode [2024-11-28 03:01:59,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:01:59,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:01:59,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:01:59,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:01:59,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,542 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2024-11-28 03:01:59,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:01:59,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:01:59,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:01:59,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:01:59,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,586 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:01:59,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,594 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:01:59,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:01:59,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:01:59,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:01:59,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (1/1) ... [2024-11-28 03:01:59,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:01:59,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:59,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:01:59,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:01:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:01:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:01:59,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:01:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:01:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:01:59,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:01:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:01:59,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:01:59,777 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:01:59,781 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:02:00,223 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-11-28 03:02:00,223 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:02:00,238 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:02:00,238 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:02:00,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:00 BoogieIcfgContainer [2024-11-28 03:02:00,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:02:00,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:02:00,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:02:00,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:02:00,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:59" (1/3) ... [2024-11-28 03:02:00,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372503b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:00, skipping insertion in model container [2024-11-28 03:02:00,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:59" (2/3) ... [2024-11-28 03:02:00,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372503b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:00, skipping insertion in model container [2024-11-28 03:02:00,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:00" (3/3) ... [2024-11-28 03:02:00,250 INFO L128 eAbstractionObserver]: Analyzing ICFG geo2-ll2_valuebound50.c [2024-11-28 03:02:00,269 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:02:00,271 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo2-ll2_valuebound50.c that has 3 procedures, 79 locations, 1 initial locations, 1 loop locations, and 28 error locations. [2024-11-28 03:02:00,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:02:00,373 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, 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;@44f7c191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:02:00,374 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-28 03:02:00,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 44 states have (on average 1.75) internal successors, (77), 72 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:02:00,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:00,391 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:00,394 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:00,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:00,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1238501990, now seen corresponding path program 1 times [2024-11-28 03:02:00,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:00,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521131582] [2024-11-28 03:02:00,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:00,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:00,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:02:00,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:00,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521131582] [2024-11-28 03:02:00,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521131582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:00,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152201956] [2024-11-28 03:02:00,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:00,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:00,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:00,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:00,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:02:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:00,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:02:00,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:02:00,696 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:00,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152201956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:00,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:00,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:02:00,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043713926] [2024-11-28 03:02:00,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:00,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:02:00,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:00,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:02:00,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:02:00,734 INFO L87 Difference]: Start difference. First operand has 79 states, 44 states have (on average 1.75) internal successors, (77), 72 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:02:00,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:00,764 INFO L93 Difference]: Finished difference Result 154 states and 169 transitions. [2024-11-28 03:02:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:02:00,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-28 03:02:00,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:00,775 INFO L225 Difference]: With dead ends: 154 [2024-11-28 03:02:00,776 INFO L226 Difference]: Without dead ends: 72 [2024-11-28 03:02:00,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:02:00,789 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:00,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:02:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-28 03:02:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-28 03:02:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 66 states have internal predecessors, (67), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:02:00,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2024-11-28 03:02:00,850 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 15 [2024-11-28 03:02:00,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:00,851 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2024-11-28 03:02:00,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:02:00,852 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2024-11-28 03:02:00,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:02:00,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:00,854 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:00,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:02:01,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:02:01,055 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:01,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:01,056 INFO L85 PathProgramCache]: Analyzing trace with hash -535590370, now seen corresponding path program 1 times [2024-11-28 03:02:01,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:01,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587723001] [2024-11-28 03:02:01,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:01,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:01,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014473728] [2024-11-28 03:02:01,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:01,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:01,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:01,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:01,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:02:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:01,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:02:01,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:02:01,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:01,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:01,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587723001] [2024-11-28 03:02:01,270 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014473728] [2024-11-28 03:02:01,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014473728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:01,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:01,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:02:01,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135847661] [2024-11-28 03:02:01,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:01,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:02:01,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:01,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:02:01,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:01,274 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:01,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:01,635 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2024-11-28 03:02:01,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:02:01,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-28 03:02:01,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:01,640 INFO L225 Difference]: With dead ends: 110 [2024-11-28 03:02:01,642 INFO L226 Difference]: Without dead ends: 102 [2024-11-28 03:02:01,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:01,644 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 60 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:01,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 49 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:02:01,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-28 03:02:01,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 94. [2024-11-28 03:02:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 87 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 109 transitions. [2024-11-28 03:02:01,667 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 109 transitions. Word has length 15 [2024-11-28 03:02:01,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:01,669 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 109 transitions. [2024-11-28 03:02:01,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:01,669 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 109 transitions. [2024-11-28 03:02:01,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 03:02:01,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:01,672 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:01,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:01,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:01,876 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:01,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash 576567762, now seen corresponding path program 1 times [2024-11-28 03:02:01,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:01,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003902163] [2024-11-28 03:02:01,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:01,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:01,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015496007] [2024-11-28 03:02:01,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:01,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:01,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:01,920 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:01,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:02:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:01,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:02:01,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:02:02,034 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:02,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:02,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003902163] [2024-11-28 03:02:02,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:02,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015496007] [2024-11-28 03:02:02,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015496007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:02,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:02,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:02:02,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217718690] [2024-11-28 03:02:02,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:02,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:02:02,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:02,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:02:02,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:02,036 INFO L87 Difference]: Start difference. First operand 94 states and 109 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:02,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:02,266 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2024-11-28 03:02:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:02:02,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-28 03:02:02,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:02,269 INFO L225 Difference]: With dead ends: 110 [2024-11-28 03:02:02,269 INFO L226 Difference]: Without dead ends: 102 [2024-11-28 03:02:02,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:02,270 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 86 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:02,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 39 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:02:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-28 03:02:02,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 96. [2024-11-28 03:02:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.564516129032258) internal successors, (97), 89 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2024-11-28 03:02:02,283 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 16 [2024-11-28 03:02:02,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:02,283 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2024-11-28 03:02:02,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:02,284 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2024-11-28 03:02:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 03:02:02,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:02,284 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:02,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:02,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:02,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:02,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:02,486 INFO L85 PathProgramCache]: Analyzing trace with hash -377444956, now seen corresponding path program 1 times [2024-11-28 03:02:02,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:02,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503533777] [2024-11-28 03:02:02,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:02,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23897903] [2024-11-28 03:02:02,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:02,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:02,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:02,516 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:02,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:02:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:02,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:02:02,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:02,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:02:02,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:02,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:02,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503533777] [2024-11-28 03:02:02,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:02,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23897903] [2024-11-28 03:02:02,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23897903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:02,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:02,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:02:02,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173088845] [2024-11-28 03:02:02,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:02,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:02:02,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:02,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:02:02,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:02,688 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:02,911 INFO L93 Difference]: Finished difference Result 107 states and 116 transitions. [2024-11-28 03:02:02,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:02:02,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-28 03:02:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:02,913 INFO L225 Difference]: With dead ends: 107 [2024-11-28 03:02:02,913 INFO L226 Difference]: Without dead ends: 104 [2024-11-28 03:02:02,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:02,915 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 80 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:02,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 39 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:02:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-28 03:02:02,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2024-11-28 03:02:02,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.53125) internal successors, (98), 91 states have internal predecessors, (98), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:02,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2024-11-28 03:02:02,937 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 21 [2024-11-28 03:02:02,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:02,938 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2024-11-28 03:02:02,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2024-11-28 03:02:02,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 03:02:02,942 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:02,942 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:02,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:03,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-28 03:02:03,143 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:03,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1184108312, now seen corresponding path program 1 times [2024-11-28 03:02:03,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:03,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391122286] [2024-11-28 03:02:03,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:03,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:03,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303633849] [2024-11-28 03:02:03,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:03,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:03,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:03,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:03,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:02:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:03,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:02:03,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:02:03,313 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:03,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:03,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391122286] [2024-11-28 03:02:03,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:03,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303633849] [2024-11-28 03:02:03,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303633849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:03,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:03,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:02:03,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587115366] [2024-11-28 03:02:03,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:03,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:02:03,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:03,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:02:03,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:03,315 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:03,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:03,500 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2024-11-28 03:02:03,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:02:03,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-28 03:02:03,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:03,502 INFO L225 Difference]: With dead ends: 107 [2024-11-28 03:02:03,502 INFO L226 Difference]: Without dead ends: 104 [2024-11-28 03:02:03,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:02:03,503 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 78 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:03,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 39 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:02:03,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-28 03:02:03,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2024-11-28 03:02:03,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 66 states have (on average 1.5) internal successors, (99), 93 states have internal predecessors, (99), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:03,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2024-11-28 03:02:03,519 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 22 [2024-11-28 03:02:03,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:03,519 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2024-11-28 03:02:03,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:03,520 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2024-11-28 03:02:03,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 03:02:03,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:03,520 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:03,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:03,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:03,721 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:03,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:03,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1947347930, now seen corresponding path program 1 times [2024-11-28 03:02:03,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:03,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438533669] [2024-11-28 03:02:03,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:03,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:03,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050504694] [2024-11-28 03:02:03,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:03,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:03,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:03,756 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:03,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:02:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:03,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:02:03,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:02:03,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:03,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:03,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438533669] [2024-11-28 03:02:03,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:03,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050504694] [2024-11-28 03:02:03,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050504694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:03,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:03,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:02:03,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059459371] [2024-11-28 03:02:03,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:03,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:02:03,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:03,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:02:03,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:02:03,889 INFO L87 Difference]: Start difference. First operand 100 states and 107 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:04,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:04,161 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2024-11-28 03:02:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:02:04,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-28 03:02:04,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:04,163 INFO L225 Difference]: With dead ends: 108 [2024-11-28 03:02:04,163 INFO L226 Difference]: Without dead ends: 94 [2024-11-28 03:02:04,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:02:04,164 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:04,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 70 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:02:04,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-28 03:02:04,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2024-11-28 03:02:04,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 58 states have (on average 1.5172413793103448) internal successors, (88), 85 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:04,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2024-11-28 03:02:04,172 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 23 [2024-11-28 03:02:04,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:04,173 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2024-11-28 03:02:04,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:02:04,173 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2024-11-28 03:02:04,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 03:02:04,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:04,174 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:04,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:02:04,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 03:02:04,377 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:04,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:04,378 INFO L85 PathProgramCache]: Analyzing trace with hash -2018056926, now seen corresponding path program 1 times [2024-11-28 03:02:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:04,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73993926] [2024-11-28 03:02:04,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:04,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:02:04,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:04,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73993926] [2024-11-28 03:02:04,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73993926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:04,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:04,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:02:04,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739587708] [2024-11-28 03:02:04,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:04,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:02:04,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:04,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:02:04,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:02:04,496 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:02:04,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:04,519 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2024-11-28 03:02:04,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:02:04,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-28 03:02:04,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:04,520 INFO L225 Difference]: With dead ends: 94 [2024-11-28 03:02:04,521 INFO L226 Difference]: Without dead ends: 92 [2024-11-28 03:02:04,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:02:04,522 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 1 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:04,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 135 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:02:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-28 03:02:04,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-28 03:02:04,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 85 states have internal predecessors, (86), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions. [2024-11-28 03:02:04,531 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 31 [2024-11-28 03:02:04,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:04,531 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions. [2024-11-28 03:02:04,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:02:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions. [2024-11-28 03:02:04,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 03:02:04,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:04,533 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:04,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:02:04,533 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:04,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:04,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1624172544, now seen corresponding path program 1 times [2024-11-28 03:02:04,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:04,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086445920] [2024-11-28 03:02:04,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:04,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:04,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899841886] [2024-11-28 03:02:04,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:04,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:04,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:04,561 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:04,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:02:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:04,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:02:04,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:02:04,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:05,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:05,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086445920] [2024-11-28 03:02:05,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:05,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899841886] [2024-11-28 03:02:05,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899841886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:05,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:05,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 03:02:05,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126574250] [2024-11-28 03:02:05,163 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:05,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:02:05,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:05,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:02:05,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:02:05,164 INFO L87 Difference]: Start difference. First operand 92 states and 94 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:02:05,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:05,501 INFO L93 Difference]: Finished difference Result 92 states and 94 transitions. [2024-11-28 03:02:05,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:02:05,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-11-28 03:02:05,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:05,503 INFO L225 Difference]: With dead ends: 92 [2024-11-28 03:02:05,503 INFO L226 Difference]: Without dead ends: 86 [2024-11-28 03:02:05,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:02:05,504 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 57 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:05,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 96 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:02:05,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-28 03:02:05,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-28 03:02:05,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 79 states have internal predecessors, (80), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:05,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 88 transitions. [2024-11-28 03:02:05,512 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 88 transitions. Word has length 39 [2024-11-28 03:02:05,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:05,512 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 88 transitions. [2024-11-28 03:02:05,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:02:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2024-11-28 03:02:05,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 03:02:05,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:05,514 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:05,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:05,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:05,715 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:05,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:05,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1190258736, now seen corresponding path program 1 times [2024-11-28 03:02:05,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:05,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096689292] [2024-11-28 03:02:05,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:05,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:05,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378150262] [2024-11-28 03:02:05,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:05,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:05,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:05,757 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:05,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:02:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:05,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:02:05,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:02:06,178 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:06,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:06,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096689292] [2024-11-28 03:02:06,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:06,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378150262] [2024-11-28 03:02:06,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378150262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:06,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:06,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 03:02:06,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908764356] [2024-11-28 03:02:06,719 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:06,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:02:06,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:06,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:02:06,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:02:06,720 INFO L87 Difference]: Start difference. First operand 86 states and 88 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:02:07,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:07,109 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2024-11-28 03:02:07,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:02:07,109 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2024-11-28 03:02:07,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:07,110 INFO L225 Difference]: With dead ends: 122 [2024-11-28 03:02:07,110 INFO L226 Difference]: Without dead ends: 116 [2024-11-28 03:02:07,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:02:07,111 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 86 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:07,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 95 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:02:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-28 03:02:07,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 108. [2024-11-28 03:02:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 100 states have internal predecessors, (110), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:02:07,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 120 transitions. [2024-11-28 03:02:07,133 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 120 transitions. Word has length 40 [2024-11-28 03:02:07,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:07,133 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 120 transitions. [2024-11-28 03:02:07,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:02:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2024-11-28 03:02:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 03:02:07,134 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:07,134 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:07,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:07,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:07,340 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:07,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:07,341 INFO L85 PathProgramCache]: Analyzing trace with hash -251941884, now seen corresponding path program 1 times [2024-11-28 03:02:07,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:07,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709840478] [2024-11-28 03:02:07,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:07,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:07,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499397502] [2024-11-28 03:02:07,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:07,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:07,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:07,391 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:07,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:02:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:07,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:02:07,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:02:07,623 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:02:08,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:08,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709840478] [2024-11-28 03:02:08,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:08,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499397502] [2024-11-28 03:02:08,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499397502] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:02:08,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:02:08,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 03:02:08,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423829304] [2024-11-28 03:02:08,095 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:08,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:02:08,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:08,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:02:08,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:02:08,097 INFO L87 Difference]: Start difference. First operand 108 states and 120 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 03:02:08,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:08,980 INFO L93 Difference]: Finished difference Result 156 states and 196 transitions. [2024-11-28 03:02:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:02:08,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 43 [2024-11-28 03:02:08,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:08,983 INFO L225 Difference]: With dead ends: 156 [2024-11-28 03:02:08,984 INFO L226 Difference]: Without dead ends: 154 [2024-11-28 03:02:08,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:02:08,985 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 192 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:08,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 104 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:02:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-28 03:02:09,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 134. [2024-11-28 03:02:09,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 105 states have (on average 1.4476190476190476) internal successors, (152), 125 states have internal predecessors, (152), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:02:09,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 164 transitions. [2024-11-28 03:02:09,006 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 164 transitions. Word has length 43 [2024-11-28 03:02:09,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:09,007 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 164 transitions. [2024-11-28 03:02:09,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 03:02:09,007 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 164 transitions. [2024-11-28 03:02:09,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:02:09,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:09,008 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:09,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:02:09,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:09,209 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:09,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:09,209 INFO L85 PathProgramCache]: Analyzing trace with hash 779736244, now seen corresponding path program 1 times [2024-11-28 03:02:09,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:09,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854087787] [2024-11-28 03:02:09,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:09,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:09,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305736072] [2024-11-28 03:02:09,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:09,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:09,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:09,233 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:09,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:02:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:09,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:02:09,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:02:09,592 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:10,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:10,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854087787] [2024-11-28 03:02:10,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:10,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305736072] [2024-11-28 03:02:10,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305736072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:10,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:10,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 03:02:10,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174229252] [2024-11-28 03:02:10,148 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:10,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:02:10,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:10,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:02:10,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:02:10,149 INFO L87 Difference]: Start difference. First operand 134 states and 164 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:02:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:10,448 INFO L93 Difference]: Finished difference Result 134 states and 164 transitions. [2024-11-28 03:02:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:02:10,449 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2024-11-28 03:02:10,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:10,451 INFO L225 Difference]: With dead ends: 134 [2024-11-28 03:02:10,451 INFO L226 Difference]: Without dead ends: 128 [2024-11-28 03:02:10,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:02:10,453 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 75 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:10,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 86 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:02:10,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-28 03:02:10,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2024-11-28 03:02:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 115 states have internal predecessors, (138), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:02:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 150 transitions. [2024-11-28 03:02:10,469 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 150 transitions. Word has length 44 [2024-11-28 03:02:10,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:10,469 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 150 transitions. [2024-11-28 03:02:10,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:02:10,469 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 150 transitions. [2024-11-28 03:02:10,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 03:02:10,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:10,470 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:10,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:02:10,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:10,671 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:10,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:10,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1597980154, now seen corresponding path program 1 times [2024-11-28 03:02:10,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:10,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630173314] [2024-11-28 03:02:10,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:10,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:10,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1070002750] [2024-11-28 03:02:10,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:10,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:10,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:10,706 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:10,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:02:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:10,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:02:10,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:11,007 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:02:11,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:11,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:11,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630173314] [2024-11-28 03:02:11,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:11,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070002750] [2024-11-28 03:02:11,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070002750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:11,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:11,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 03:02:11,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744840219] [2024-11-28 03:02:11,226 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:11,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:02:11,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:11,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:02:11,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:02:11,228 INFO L87 Difference]: Start difference. First operand 124 states and 150 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:02:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:11,515 INFO L93 Difference]: Finished difference Result 124 states and 150 transitions. [2024-11-28 03:02:11,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:02:11,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2024-11-28 03:02:11,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:11,517 INFO L225 Difference]: With dead ends: 124 [2024-11-28 03:02:11,517 INFO L226 Difference]: Without dead ends: 121 [2024-11-28 03:02:11,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:02:11,518 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 24 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:11,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 106 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:02:11,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-28 03:02:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-28 03:02:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 101 states have (on average 1.297029702970297) internal successors, (131), 112 states have internal predecessors, (131), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:02:11,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 143 transitions. [2024-11-28 03:02:11,529 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 143 transitions. Word has length 45 [2024-11-28 03:02:11,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:11,530 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 143 transitions. [2024-11-28 03:02:11,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:02:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 143 transitions. [2024-11-28 03:02:11,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 03:02:11,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:11,531 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:11,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:11,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:11,732 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:11,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:11,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2002222838, now seen corresponding path program 1 times [2024-11-28 03:02:11,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:11,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741088614] [2024-11-28 03:02:11,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:11,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:11,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923135670] [2024-11-28 03:02:11,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:11,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:11,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:11,752 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:11,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:02:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:11,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:02:11,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:02:12,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:02:12,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:12,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741088614] [2024-11-28 03:02:12,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:12,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923135670] [2024-11-28 03:02:12,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923135670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:02:12,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:02:12,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-11-28 03:02:12,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713979680] [2024-11-28 03:02:12,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:12,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:02:12,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:12,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:02:12,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:02:12,856 INFO L87 Difference]: Start difference. First operand 121 states and 143 transitions. Second operand has 16 states, 15 states have (on average 4.866666666666666) internal successors, (73), 16 states have internal predecessors, (73), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 03:02:14,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:14,000 INFO L93 Difference]: Finished difference Result 151 states and 173 transitions. [2024-11-28 03:02:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:02:14,001 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.866666666666666) internal successors, (73), 16 states have internal predecessors, (73), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 46 [2024-11-28 03:02:14,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:14,003 INFO L225 Difference]: With dead ends: 151 [2024-11-28 03:02:14,003 INFO L226 Difference]: Without dead ends: 148 [2024-11-28 03:02:14,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:02:14,005 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 181 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:14,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 141 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:02:14,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-28 03:02:14,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 122. [2024-11-28 03:02:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 104 states have (on average 1.2307692307692308) internal successors, (128), 113 states have internal predecessors, (128), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:02:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 140 transitions. [2024-11-28 03:02:14,014 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 140 transitions. Word has length 46 [2024-11-28 03:02:14,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:14,014 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 140 transitions. [2024-11-28 03:02:14,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.866666666666666) internal successors, (73), 16 states have internal predecessors, (73), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 03:02:14,014 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 140 transitions. [2024-11-28 03:02:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 03:02:14,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:14,016 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:14,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:14,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 03:02:14,217 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:14,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:14,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1939365896, now seen corresponding path program 1 times [2024-11-28 03:02:14,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:14,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214835903] [2024-11-28 03:02:14,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:14,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:14,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647469130] [2024-11-28 03:02:14,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:14,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:14,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:14,242 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:14,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:02:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:14,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:02:14,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:02:14,445 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:14,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:14,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214835903] [2024-11-28 03:02:14,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:14,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647469130] [2024-11-28 03:02:14,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647469130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:14,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:14,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 03:02:14,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632037273] [2024-11-28 03:02:14,663 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:14,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:02:14,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:14,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:02:14,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:02:14,665 INFO L87 Difference]: Start difference. First operand 122 states and 140 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:02:14,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:14,908 INFO L93 Difference]: Finished difference Result 138 states and 151 transitions. [2024-11-28 03:02:14,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:02:14,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2024-11-28 03:02:14,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:14,910 INFO L225 Difference]: With dead ends: 138 [2024-11-28 03:02:14,910 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 03:02:14,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:02:14,911 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 20 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:14,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 98 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:02:14,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 03:02:14,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2024-11-28 03:02:14,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 104 states have (on average 1.2019230769230769) internal successors, (125), 113 states have internal predecessors, (125), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:02:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 137 transitions. [2024-11-28 03:02:14,920 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 137 transitions. Word has length 47 [2024-11-28 03:02:14,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:14,921 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 137 transitions. [2024-11-28 03:02:14,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:02:14,921 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 137 transitions. [2024-11-28 03:02:14,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 03:02:14,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:14,922 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:14,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:15,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:15,123 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:15,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:15,123 INFO L85 PathProgramCache]: Analyzing trace with hash 839937796, now seen corresponding path program 1 times [2024-11-28 03:02:15,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:15,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190182558] [2024-11-28 03:02:15,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:15,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:02:15,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:15,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190182558] [2024-11-28 03:02:15,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190182558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:15,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628881921] [2024-11-28 03:02:15,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:15,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:15,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:15,265 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:15,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:02:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:15,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:02:15,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:15,384 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:02:15,384 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:15,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628881921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:15,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:15,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-28 03:02:15,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778364164] [2024-11-28 03:02:15,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:15,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:02:15,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:15,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:02:15,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:02:15,386 INFO L87 Difference]: Start difference. First operand 122 states and 137 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:02:15,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:15,411 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2024-11-28 03:02:15,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:02:15,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-11-28 03:02:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:15,413 INFO L225 Difference]: With dead ends: 122 [2024-11-28 03:02:15,413 INFO L226 Difference]: Without dead ends: 121 [2024-11-28 03:02:15,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:02:15,414 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 13 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:15,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 96 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:02:15,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-28 03:02:15,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-28 03:02:15,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 104 states have (on average 1.1730769230769231) internal successors, (122), 112 states have internal predecessors, (122), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:02:15,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 134 transitions. [2024-11-28 03:02:15,422 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 134 transitions. Word has length 55 [2024-11-28 03:02:15,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:15,422 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 134 transitions. [2024-11-28 03:02:15,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:02:15,423 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 134 transitions. [2024-11-28 03:02:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:02:15,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:15,424 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:15,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:15,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:15,624 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:15,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash 268267974, now seen corresponding path program 1 times [2024-11-28 03:02:15,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:15,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985066615] [2024-11-28 03:02:15,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:15,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:02:15,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:15,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985066615] [2024-11-28 03:02:15,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985066615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:15,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254606214] [2024-11-28 03:02:15,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:15,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:15,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:15,757 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:15,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:02:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:15,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:02:15,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:15,869 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:02:15,869 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:15,947 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:02:15,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254606214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:02:15,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:02:15,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-28 03:02:15,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860186228] [2024-11-28 03:02:15,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:15,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:02:15,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:15,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:02:15,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:02:15,949 INFO L87 Difference]: Start difference. First operand 121 states and 134 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 03:02:16,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:16,003 INFO L93 Difference]: Finished difference Result 136 states and 145 transitions. [2024-11-28 03:02:16,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:02:16,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 56 [2024-11-28 03:02:16,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:16,005 INFO L225 Difference]: With dead ends: 136 [2024-11-28 03:02:16,005 INFO L226 Difference]: Without dead ends: 135 [2024-11-28 03:02:16,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:02:16,006 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 18 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:16,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 199 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:02:16,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-28 03:02:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 127. [2024-11-28 03:02:16,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 109 states have (on average 1.1743119266055047) internal successors, (128), 117 states have internal predecessors, (128), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:02:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 142 transitions. [2024-11-28 03:02:16,015 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 142 transitions. Word has length 56 [2024-11-28 03:02:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:16,016 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 142 transitions. [2024-11-28 03:02:16,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 03:02:16,016 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 142 transitions. [2024-11-28 03:02:16,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:02:16,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:16,017 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:16,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 03:02:16,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:02:16,218 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:16,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:16,218 INFO L85 PathProgramCache]: Analyzing trace with hash 655907982, now seen corresponding path program 2 times [2024-11-28 03:02:16,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:16,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573134690] [2024-11-28 03:02:16,219 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:16,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:16,235 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:16,235 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:02:16,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945357523] [2024-11-28 03:02:16,236 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:16,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:16,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:16,239 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:16,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 03:02:16,301 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:16,301 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:02:16,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:02:16,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 03:02:16,656 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:16,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:16,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573134690] [2024-11-28 03:02:16,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:16,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945357523] [2024-11-28 03:02:16,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945357523] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:16,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:16,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 03:02:16,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704958756] [2024-11-28 03:02:16,912 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:16,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:02:16,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:16,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:02:16,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:02:16,914 INFO L87 Difference]: Start difference. First operand 127 states and 142 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:17,357 INFO L93 Difference]: Finished difference Result 139 states and 153 transitions. [2024-11-28 03:02:17,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:02:17,358 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 64 [2024-11-28 03:02:17,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:17,359 INFO L225 Difference]: With dead ends: 139 [2024-11-28 03:02:17,359 INFO L226 Difference]: Without dead ends: 137 [2024-11-28 03:02:17,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:02:17,360 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 56 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:17,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 108 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:02:17,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-28 03:02:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2024-11-28 03:02:17,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 109 states have (on average 1.1559633027522935) internal successors, (126), 117 states have internal predecessors, (126), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:02:17,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 140 transitions. [2024-11-28 03:02:17,369 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 140 transitions. Word has length 64 [2024-11-28 03:02:17,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:17,369 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 140 transitions. [2024-11-28 03:02:17,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:02:17,369 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 140 transitions. [2024-11-28 03:02:17,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 03:02:17,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:17,370 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:17,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:17,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:02:17,571 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:17,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:17,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1773528554, now seen corresponding path program 2 times [2024-11-28 03:02:17,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:17,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472256751] [2024-11-28 03:02:17,571 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:17,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:17,589 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:17,590 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:02:17,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144309599] [2024-11-28 03:02:17,590 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:17,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:17,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:17,593 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:17,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 03:02:17,659 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:17,659 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:02:17,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:02:17,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:18,062 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 03:02:18,063 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:02:18,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:18,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472256751] [2024-11-28 03:02:18,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:18,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144309599] [2024-11-28 03:02:18,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144309599] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:18,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:18,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-28 03:02:18,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462915811] [2024-11-28 03:02:18,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:18,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:02:18,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:18,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:02:18,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:02:18,390 INFO L87 Difference]: Start difference. First operand 127 states and 140 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:02:18,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:18,903 INFO L93 Difference]: Finished difference Result 127 states and 140 transitions. [2024-11-28 03:02:18,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:02:18,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 71 [2024-11-28 03:02:18,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:18,905 INFO L225 Difference]: With dead ends: 127 [2024-11-28 03:02:18,905 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 03:02:18,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:02:18,906 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 42 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:18,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 76 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:02:18,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 03:02:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-28 03:02:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 109 states have (on average 1.1192660550458715) internal successors, (122), 115 states have internal predecessors, (122), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:02:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 136 transitions. [2024-11-28 03:02:18,917 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 136 transitions. Word has length 71 [2024-11-28 03:02:18,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:18,917 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 136 transitions. [2024-11-28 03:02:18,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:02:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 136 transitions. [2024-11-28 03:02:18,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 03:02:18,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:18,919 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:18,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:19,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:02:19,123 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:19,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:19,124 INFO L85 PathProgramCache]: Analyzing trace with hash -855189610, now seen corresponding path program 1 times [2024-11-28 03:02:19,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:19,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164921473] [2024-11-28 03:02:19,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:19,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:19,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006404324] [2024-11-28 03:02:19,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:19,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:19,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:19,146 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:19,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 03:02:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:19,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:02:19,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 03:02:19,530 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:02:19,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:19,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164921473] [2024-11-28 03:02:19,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:19,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006404324] [2024-11-28 03:02:19,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006404324] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:19,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:19,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-28 03:02:19,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335066661] [2024-11-28 03:02:19,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:19,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:02:19,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:19,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:02:19,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:02:19,754 INFO L87 Difference]: Start difference. First operand 125 states and 136 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:02:20,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:20,245 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2024-11-28 03:02:20,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:02:20,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 72 [2024-11-28 03:02:20,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:20,247 INFO L225 Difference]: With dead ends: 125 [2024-11-28 03:02:20,247 INFO L226 Difference]: Without dead ends: 113 [2024-11-28 03:02:20,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:02:20,248 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 62 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:20,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 76 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:02:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-28 03:02:20,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-28 03:02:20,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.0707070707070707) internal successors, (106), 103 states have internal predecessors, (106), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:02:20,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 120 transitions. [2024-11-28 03:02:20,260 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 120 transitions. Word has length 72 [2024-11-28 03:02:20,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:20,261 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 120 transitions. [2024-11-28 03:02:20,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:02:20,261 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 120 transitions. [2024-11-28 03:02:20,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:02:20,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:20,262 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:20,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:20,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:20,466 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:20,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:20,467 INFO L85 PathProgramCache]: Analyzing trace with hash -505473300, now seen corresponding path program 3 times [2024-11-28 03:02:20,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:20,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685325252] [2024-11-28 03:02:20,467 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:02:20,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:20,494 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 03:02:20,494 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:02:20,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1409690837] [2024-11-28 03:02:20,495 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:02:20,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:20,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:20,498 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:20,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 03:02:20,971 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 03:02:20,971 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:02:20,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:02:20,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 03:02:28,573 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:28,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:28,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685325252] [2024-11-28 03:02:28,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:28,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409690837] [2024-11-28 03:02:28,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409690837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:28,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:28,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:02:28,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72512821] [2024-11-28 03:02:28,947 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:28,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:02:28,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:28,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:02:28,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=151, Unknown=2, NotChecked=0, Total=210 [2024-11-28 03:02:28,949 INFO L87 Difference]: Start difference. First operand 113 states and 120 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:02:30,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:02:32,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:02:33,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:02:38,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:02:41,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:02:42,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:02:44,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:02:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:44,515 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2024-11-28 03:02:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:02:44,516 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 88 [2024-11-28 03:02:44,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:44,517 INFO L225 Difference]: With dead ends: 119 [2024-11-28 03:02:44,517 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 03:02:44,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=68, Invalid=170, Unknown=2, NotChecked=0, Total=240 [2024-11-28 03:02:44,517 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 69 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:44,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 108 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 233 Invalid, 5 Unknown, 0 Unchecked, 15.5s Time] [2024-11-28 03:02:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 03:02:44,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113. [2024-11-28 03:02:44,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.0505050505050506) internal successors, (104), 103 states have internal predecessors, (104), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:02:44,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 118 transitions. [2024-11-28 03:02:44,529 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 118 transitions. Word has length 88 [2024-11-28 03:02:44,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:44,530 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 118 transitions. [2024-11-28 03:02:44,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:02:44,530 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 118 transitions. [2024-11-28 03:02:44,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 03:02:44,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:44,531 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:44,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:44,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:44,732 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:44,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:44,733 INFO L85 PathProgramCache]: Analyzing trace with hash -866904246, now seen corresponding path program 4 times [2024-11-28 03:02:44,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:44,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928334274] [2024-11-28 03:02:44,733 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:02:44,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:44,774 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:02:44,774 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:02:44,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718902443] [2024-11-28 03:02:44,776 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:02:44,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:44,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:44,780 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:44,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 03:02:44,945 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:02:44,945 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:02:44,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 03:02:44,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 9 proven. 131 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:02:46,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:47,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:47,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928334274] [2024-11-28 03:02:47,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:47,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718902443] [2024-11-28 03:02:47,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718902443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:47,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:47,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 03:02:47,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92385471] [2024-11-28 03:02:47,282 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:47,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:02:47,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:47,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:02:47,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:02:47,283 INFO L87 Difference]: Start difference. First operand 113 states and 118 transitions. Second operand has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:02:48,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:48,350 INFO L93 Difference]: Finished difference Result 142 states and 150 transitions. [2024-11-28 03:02:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:02:48,350 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 112 [2024-11-28 03:02:48,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:48,352 INFO L225 Difference]: With dead ends: 142 [2024-11-28 03:02:48,352 INFO L226 Difference]: Without dead ends: 140 [2024-11-28 03:02:48,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:02:48,353 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 54 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:48,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 251 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:02:48,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-28 03:02:48,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 123. [2024-11-28 03:02:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 109 states have (on average 1.0458715596330275) internal successors, (114), 113 states have internal predecessors, (114), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:02:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 128 transitions. [2024-11-28 03:02:48,374 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 128 transitions. Word has length 112 [2024-11-28 03:02:48,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:48,374 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 128 transitions. [2024-11-28 03:02:48,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 6 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:02:48,374 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 128 transitions. [2024-11-28 03:02:48,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 03:02:48,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:48,376 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:48,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 03:02:48,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:48,577 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:48,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:48,578 INFO L85 PathProgramCache]: Analyzing trace with hash -305992022, now seen corresponding path program 2 times [2024-11-28 03:02:48,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:48,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364380370] [2024-11-28 03:02:48,578 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:48,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:48,605 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:48,605 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:02:48,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672834784] [2024-11-28 03:02:48,606 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:48,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:48,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:48,610 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:48,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 03:02:48,676 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:48,676 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:02:48,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:02:48,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 67 proven. 4 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-28 03:02:49,204 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:49,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:49,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364380370] [2024-11-28 03:02:49,479 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:49,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672834784] [2024-11-28 03:02:49,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672834784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:49,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:49,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 03:02:49,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851103253] [2024-11-28 03:02:49,480 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:49,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:02:49,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:49,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:02:49,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:02:49,481 INFO L87 Difference]: Start difference. First operand 123 states and 128 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:02:49,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:49,661 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2024-11-28 03:02:49,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:02:49,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 115 [2024-11-28 03:02:49,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:49,663 INFO L225 Difference]: With dead ends: 123 [2024-11-28 03:02:49,663 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 03:02:49,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:02:49,665 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:49,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 65 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:02:49,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 03:02:49,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-28 03:02:49,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 109 states have (on average 1.036697247706422) internal successors, (113), 112 states have internal predecessors, (113), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:02:49,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2024-11-28 03:02:49,680 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 115 [2024-11-28 03:02:49,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:49,681 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2024-11-28 03:02:49,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 03:02:49,681 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2024-11-28 03:02:49,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:02:49,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:49,682 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:49,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 03:02:49,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 03:02:49,883 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:02:49,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:49,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1887669616, now seen corresponding path program 2 times [2024-11-28 03:02:49,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:49,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635316610] [2024-11-28 03:02:49,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:49,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:49,919 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:49,919 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:02:49,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698763607] [2024-11-28 03:02:49,921 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:49,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:49,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:49,927 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:49,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 03:02:50,062 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:50,062 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:02:50,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:02:50,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 79 proven. 64 refuted. 8 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-28 03:03:00,945 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 03:03:01,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:01,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635316610] [2024-11-28 03:03:01,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:01,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698763607] [2024-11-28 03:03:01,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698763607] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:01,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:01,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-28 03:03:01,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433185195] [2024-11-28 03:03:01,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:01,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:03:01,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:01,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:03:01,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=193, Unknown=3, NotChecked=0, Total=240 [2024-11-28 03:03:01,971 INFO L87 Difference]: Start difference. First operand 122 states and 127 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:03:02,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:02,693 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2024-11-28 03:03:02,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:03:02,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 118 [2024-11-28 03:03:02,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:02,694 INFO L225 Difference]: With dead ends: 122 [2024-11-28 03:03:02,694 INFO L226 Difference]: Without dead ends: 121 [2024-11-28 03:03:02,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=62, Invalid=277, Unknown=3, NotChecked=0, Total=342 [2024-11-28 03:03:02,695 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 26 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:02,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 85 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:03:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-28 03:03:02,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-28 03:03:02,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 109 states have (on average 1.0275229357798166) internal successors, (112), 111 states have internal predecessors, (112), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:03:02,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2024-11-28 03:03:02,713 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 118 [2024-11-28 03:03:02,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:02,713 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2024-11-28 03:03:02,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:03:02,713 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2024-11-28 03:03:02,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:03:02,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:02,714 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:02,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 03:03:02,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 03:03:02,915 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:03:02,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:02,916 INFO L85 PathProgramCache]: Analyzing trace with hash -228447008, now seen corresponding path program 2 times [2024-11-28 03:03:02,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:02,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761349074] [2024-11-28 03:03:02,916 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:03:02,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:02,936 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:03:02,936 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:03:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-28 03:03:03,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:03,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761349074] [2024-11-28 03:03:03,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761349074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:03,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952869128] [2024-11-28 03:03:03,164 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:03:03,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:03,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:03,166 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:03,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 03:03:03,241 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:03:03,241 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:03:03,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:03:03,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-28 03:03:03,438 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-28 03:03:03,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952869128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:03:03,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:03:03,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-28 03:03:03,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925834741] [2024-11-28 03:03:03,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:03,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:03:03,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:03,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:03:03,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:03:03,659 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 03:03:03,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:03,709 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2024-11-28 03:03:03,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:03:03,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 128 [2024-11-28 03:03:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:03,712 INFO L225 Difference]: With dead ends: 121 [2024-11-28 03:03:03,712 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 03:03:03,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:03:03,713 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 30 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:03,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 100 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:03:03,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 03:03:03,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 03:03:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 109 states have (on average 1.018348623853211) internal successors, (111), 110 states have internal predecessors, (111), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:03:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2024-11-28 03:03:03,731 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 128 [2024-11-28 03:03:03,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:03,731 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2024-11-28 03:03:03,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 03:03:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2024-11-28 03:03:03,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 03:03:03,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:03,732 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:03,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 03:03:03,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 03:03:03,933 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:03:03,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:03,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1904565672, now seen corresponding path program 5 times [2024-11-28 03:03:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:03,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010369038] [2024-11-28 03:03:03,934 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:03:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:03,973 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 03:03:03,973 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:03:03,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705327969] [2024-11-28 03:03:03,974 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:03:03,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:03,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:03,977 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:03,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 03:03:04,062 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-28 03:03:04,062 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:03:04,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:03:04,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-28 03:03:22,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:22,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:22,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010369038] [2024-11-28 03:03:22,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:22,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705327969] [2024-11-28 03:03:22,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705327969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:22,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:22,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 03:03:22,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945581843] [2024-11-28 03:03:22,498 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:22,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:03:22,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:22,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:03:22,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:03:22,499 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 14 states have internal predecessors, (113), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:03:25,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:32,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:36,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:40,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:42,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:44,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:49,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:53,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:58,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:01,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:05,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:09,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:10,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:12,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:15,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:19,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:21,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:25,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:27,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:31,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:36,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:38,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:42,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:46,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:47,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:54,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:54,605 INFO L93 Difference]: Finished difference Result 156 states and 163 transitions. [2024-11-28 03:04:54,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:04:54,606 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 14 states have internal predecessors, (113), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Word has length 136 [2024-11-28 03:04:54,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:54,607 INFO L225 Difference]: With dead ends: 156 [2024-11-28 03:04:54,607 INFO L226 Difference]: Without dead ends: 154 [2024-11-28 03:04:54,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:04:54,608 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 60 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 3 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:54,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 105 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 238 Invalid, 20 Unknown, 0 Unchecked, 92.1s Time] [2024-11-28 03:04:54,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-28 03:04:54,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 140. [2024-11-28 03:04:54,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 128 states have (on average 1.015625) internal successors, (130), 129 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:04:54,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 146 transitions. [2024-11-28 03:04:54,632 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 146 transitions. Word has length 136 [2024-11-28 03:04:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:04:54,633 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 146 transitions. [2024-11-28 03:04:54,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 14 states have internal predecessors, (113), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:04:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 146 transitions. [2024-11-28 03:04:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:04:54,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:04:54,635 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:04:54,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 03:04:54,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 03:04:54,835 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:04:54,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:04:54,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1837045242, now seen corresponding path program 6 times [2024-11-28 03:04:54,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:04:54,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865546185] [2024-11-28 03:04:54,836 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:04:54,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:04:54,871 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 03:04:54,871 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:04:54,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642408226] [2024-11-28 03:04:54,872 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:04:54,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:04:54,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:04:54,876 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:04:54,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 03:04:55,178 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 03:04:55,179 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:04:55,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 03:04:55,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:24,279 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-28 03:06:24,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-28 03:06:24,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:06:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865546185] [2024-11-28 03:06:24,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:06:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642408226] [2024-11-28 03:06:24,280 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-28 03:06:24,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 03:06:24,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 03:06:24,481 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:947) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 44 more [2024-11-28 03:06:24,488 INFO L158 Benchmark]: Toolchain (without parser) took 265335.52ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 92.7MB in the beginning and 83.4MB in the end (delta: 9.3MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2024-11-28 03:06:24,488 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:06:24,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.10ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.5MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:06:24,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.00ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:06:24,489 INFO L158 Benchmark]: Boogie Preprocessor took 63.31ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 79.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:06:24,489 INFO L158 Benchmark]: RCFGBuilder took 624.73ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 64.7MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:06:24,490 INFO L158 Benchmark]: TraceAbstraction took 264244.85ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 64.1MB in the beginning and 83.4MB in the end (delta: -19.3MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-11-28 03:06:24,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.10ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.5MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.00ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.31ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 79.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 624.73ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 64.7MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 264244.85ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 64.1MB in the beginning and 83.4MB in the end (delta: -19.3MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a6a849c67042a7f19e24482aaf2265ac4440f1948afd354bf5dc3abb8c419d2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:06:27,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:06:27,609 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-28 03:06:27,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:06:27,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:06:27,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:06:27,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:06:27,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:06:27,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:06:27,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:06:27,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:06:27,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:06:27,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:06:27,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:06:27,682 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:06:27,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:06:27,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:06:27,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:06:27,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:06:27,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:06:27,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:06:27,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:06:27,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:06:27,684 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:06:27,684 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:06:27,684 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:06:27,684 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:06:27,684 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:06:27,684 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:06:27,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:06:27,684 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:06:27,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:06:27,685 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:06:27,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:27,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:27,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:27,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:27,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:06:27,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:27,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:06:27,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:06:27,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:27,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:06:27,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:06:27,686 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:06:27,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:06:27,686 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:06:27,686 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:06:27,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:06:27,686 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:06:27,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:06:27,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:06:27,690 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB 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 -> Automizer 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 -> 5a6a849c67042a7f19e24482aaf2265ac4440f1948afd354bf5dc3abb8c419d2 [2024-11-28 03:06:28,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:06:28,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:06:28,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:06:28,100 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:06:28,101 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:06:28,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c [2024-11-28 03:06:31,805 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data/06f502703/bd0b1d12cc704eccb21a1b8f94cb2b84/FLAG05d0818e8 [2024-11-28 03:06:32,087 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:06:32,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound50.c [2024-11-28 03:06:32,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data/06f502703/bd0b1d12cc704eccb21a1b8f94cb2b84/FLAG05d0818e8 [2024-11-28 03:06:32,117 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/data/06f502703/bd0b1d12cc704eccb21a1b8f94cb2b84 [2024-11-28 03:06:32,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:06:32,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:06:32,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:32,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:06:32,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:06:32,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e20f444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32, skipping insertion in model container [2024-11-28 03:06:32,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:06:32,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:32,401 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:06:32,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:32,464 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:06:32,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32 WrapperNode [2024-11-28 03:06:32,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:32,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:32,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:06:32,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:06:32,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,529 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2024-11-28 03:06:32,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:32,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:06:32,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:06:32,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:06:32,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,547 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,572 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:06:32,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,587 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:06:32,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:06:32,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:06:32,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:06:32,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (1/1) ... [2024-11-28 03:06:32,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:06:32,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:32,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:32,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:06:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:06:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:06:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:06:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:06:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:06:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:06:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:06:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:06:32,778 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:06:32,780 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:06:44,401 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-28 03:06:44,401 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:06:44,416 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:06:44,416 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:06:44,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:44 BoogieIcfgContainer [2024-11-28 03:06:44,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:06:44,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:06:44,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:06:44,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:06:44,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:06:32" (1/3) ... [2024-11-28 03:06:44,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f67a99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:44, skipping insertion in model container [2024-11-28 03:06:44,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:32" (2/3) ... [2024-11-28 03:06:44,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f67a99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:44, skipping insertion in model container [2024-11-28 03:06:44,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:44" (3/3) ... [2024-11-28 03:06:44,431 INFO L128 eAbstractionObserver]: Analyzing ICFG geo2-ll2_valuebound50.c [2024-11-28 03:06:44,454 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:06:44,456 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo2-ll2_valuebound50.c that has 3 procedures, 79 locations, 1 initial locations, 1 loop locations, and 28 error locations. [2024-11-28 03:06:44,525 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:06:44,550 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, 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;@4a50aa6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:06:44,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-28 03:06:44,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 44 states have (on average 1.75) internal successors, (77), 72 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:06:44,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:06:44,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:44,565 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:44,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:06:44,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:44,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1238501990, now seen corresponding path program 1 times [2024-11-28 03:06:44,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:06:44,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922617015] [2024-11-28 03:06:44,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:44,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:44,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:44,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:44,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:06:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:44,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:06:44,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:44,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:06:44,808 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:06:44,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:06:44,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922617015] [2024-11-28 03:06:44,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922617015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:06:44,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:06:44,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:06:44,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353267380] [2024-11-28 03:06:44,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:44,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:06:44,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:06:44,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:06:44,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:06:44,840 INFO L87 Difference]: Start difference. First operand has 79 states, 44 states have (on average 1.75) internal successors, (77), 72 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:06:44,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:44,867 INFO L93 Difference]: Finished difference Result 150 states and 169 transitions. [2024-11-28 03:06:44,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:06:44,870 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-28 03:06:44,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:06:44,878 INFO L225 Difference]: With dead ends: 150 [2024-11-28 03:06:44,878 INFO L226 Difference]: Without dead ends: 68 [2024-11-28 03:06:44,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:06:44,886 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:06:44,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:06:44,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-28 03:06:44,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-28 03:06:44,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 62 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:06:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2024-11-28 03:06:44,933 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 15 [2024-11-28 03:06:44,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:06:44,934 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2024-11-28 03:06:44,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:06:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2024-11-28 03:06:44,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:06:44,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:06:44,936 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:06:44,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:06:45,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:45,137 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:06:45,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:45,137 INFO L85 PathProgramCache]: Analyzing trace with hash -535590370, now seen corresponding path program 1 times [2024-11-28 03:06:45,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:06:45,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806699071] [2024-11-28 03:06:45,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:45,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:45,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:45,140 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:45,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:06:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:45,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:06:45,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:06:45,659 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:06:50,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:06:50,779 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:06:50,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806699071] [2024-11-28 03:06:50,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806699071] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:50,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:06:50,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:06:50,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882017282] [2024-11-28 03:06:50,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:06:50,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:06:50,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:06:50,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:06:50,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:06:50,783 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:06:55,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:01,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:02,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:04,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:08,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:12,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:16,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:20,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:21,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:22,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:25,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:28,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:31,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:37,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:40,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:41,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:44,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:45,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:47,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:51,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:55,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:07:59,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:02,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:06,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:09,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:13,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:14,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:16,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:19,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:20,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:22,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:25,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:28,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:28,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:08:28,521 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2024-11-28 03:08:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:08:28,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-28 03:08:28,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:08:28,575 INFO L225 Difference]: With dead ends: 70 [2024-11-28 03:08:28,575 INFO L226 Difference]: Without dead ends: 67 [2024-11-28 03:08:28,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:08:28,576 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 27 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:08:28,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 39 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 8 Unknown, 0 Unchecked, 97.7s Time] [2024-11-28 03:08:28,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-28 03:08:28,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-28 03:08:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 40 states have (on average 1.55) internal successors, (62), 61 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:08:28,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2024-11-28 03:08:28,586 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 15 [2024-11-28 03:08:28,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:08:28,587 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2024-11-28 03:08:28,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:08:28,588 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2024-11-28 03:08:28,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 03:08:28,589 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:08:28,589 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:08:28,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:08:28,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:08:28,790 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:08:28,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:08:28,790 INFO L85 PathProgramCache]: Analyzing trace with hash 576567762, now seen corresponding path program 1 times [2024-11-28 03:08:28,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:08:28,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043036092] [2024-11-28 03:08:28,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:08:28,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:08:28,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:08:28,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:08:28,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:08:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:08:29,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:08:29,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:29,573 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:08:29,573 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:08:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:08:39,183 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:08:39,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043036092] [2024-11-28 03:08:39,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043036092] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:39,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:08:39,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:08:39,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617929948] [2024-11-28 03:08:39,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:08:39,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:08:39,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:08:39,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:08:39,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:08:39,188 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:08:41,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:45,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:46,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:48,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:51,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:55,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:57,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:08:59,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:01,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:05,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:07,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:12,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:17,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:20,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:22,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:24,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:29,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:31,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:33,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:35,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:36,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:37,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:42,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:44,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:47,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:50,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:53,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:56,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:09:59,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:00,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:00,958 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2024-11-28 03:10:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:00,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-28 03:10:00,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:00,977 INFO L225 Difference]: With dead ends: 69 [2024-11-28 03:10:00,977 INFO L226 Difference]: Without dead ends: 66 [2024-11-28 03:10:00,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:00,978 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:00,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 40 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 4 Unknown, 0 Unchecked, 81.7s Time] [2024-11-28 03:10:00,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-28 03:10:00,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-28 03:10:00,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 60 states have internal predecessors, (61), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:10:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2024-11-28 03:10:00,988 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 16 [2024-11-28 03:10:00,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:00,988 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2024-11-28 03:10:00,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:10:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2024-11-28 03:10:00,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 03:10:00,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:00,989 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:01,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:10:01,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:01,190 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:10:01,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:01,191 INFO L85 PathProgramCache]: Analyzing trace with hash 30839700, now seen corresponding path program 1 times [2024-11-28 03:10:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:01,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [488608157] [2024-11-28 03:10:01,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:01,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:01,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:01,196 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:01,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:10:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:01,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:10:01,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:01,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:10:01,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:03,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:10:03,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:03,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488608157] [2024-11-28 03:10:03,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488608157] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:03,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:03,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:10:03,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775592694] [2024-11-28 03:10:03,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:03,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:03,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:03,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:03,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:03,415 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:10:05,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:07,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:09,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:14,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:16,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:19,587 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2024-11-28 03:10:19,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:19,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-28 03:10:19,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:19,595 INFO L225 Difference]: With dead ends: 69 [2024-11-28 03:10:19,595 INFO L226 Difference]: Without dead ends: 66 [2024-11-28 03:10:19,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:19,596 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 24 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:19,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 41 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2024-11-28 03:10:19,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-28 03:10:19,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-28 03:10:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 60 states have internal predecessors, (61), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:10:19,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2024-11-28 03:10:19,609 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 18 [2024-11-28 03:10:19,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:19,610 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2024-11-28 03:10:19,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:10:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2024-11-28 03:10:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 03:10:19,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:19,611 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:19,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:10:19,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:19,814 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:10:19,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:19,814 INFO L85 PathProgramCache]: Analyzing trace with hash 956030754, now seen corresponding path program 1 times [2024-11-28 03:10:19,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:19,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843485892] [2024-11-28 03:10:19,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:19,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:19,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:19,819 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:19,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:10:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:20,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:10:20,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:10:20,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:10:22,448 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:22,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843485892] [2024-11-28 03:10:22,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843485892] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:22,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:22,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:10:22,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243875143] [2024-11-28 03:10:22,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:22,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:22,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:22,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:22,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:22,450 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:10:25,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:26,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:28,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:30,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:34,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:42,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:45,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:45,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:45,937 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2024-11-28 03:10:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:45,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-28 03:10:45,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:45,946 INFO L225 Difference]: With dead ends: 68 [2024-11-28 03:10:45,946 INFO L226 Difference]: Without dead ends: 66 [2024-11-28 03:10:45,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:45,947 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 23 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:45,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 42 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 23.5s Time] [2024-11-28 03:10:45,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-28 03:10:45,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-28 03:10:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 60 states have internal predecessors, (61), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:10:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2024-11-28 03:10:45,956 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 19 [2024-11-28 03:10:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:45,957 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2024-11-28 03:10:45,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:10:45,957 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2024-11-28 03:10:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 03:10:45,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:45,958 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:45,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:10:46,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:46,159 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:10:46,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:46,159 INFO L85 PathProgramCache]: Analyzing trace with hash -427817642, now seen corresponding path program 1 times [2024-11-28 03:10:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:10:46,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582559484] [2024-11-28 03:10:46,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:46,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:46,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:46,162 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:46,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:10:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:46,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:10:46,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:46,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:10:46,970 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:10:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:10:48,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:10:48,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582559484] [2024-11-28 03:10:48,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582559484] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:48,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:48,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:10:48,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647141397] [2024-11-28 03:10:48,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:48,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:48,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:10:48,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:48,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:48,791 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:10:52,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:10:54,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:00,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:06,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:07,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:11,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:16,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:17,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:20,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:20,091 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2024-11-28 03:11:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:11:20,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-28 03:11:20,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:20,102 INFO L225 Difference]: With dead ends: 68 [2024-11-28 03:11:20,102 INFO L226 Difference]: Without dead ends: 66 [2024-11-28 03:11:20,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:11:20,103 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 22 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:20,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 43 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 31.3s Time] [2024-11-28 03:11:20,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-28 03:11:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-28 03:11:20,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 60 states have internal predecessors, (61), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:11:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2024-11-28 03:11:20,112 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 20 [2024-11-28 03:11:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:20,112 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2024-11-28 03:11:20,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:11:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2024-11-28 03:11:20,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 03:11:20,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:20,113 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:20,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:11:20,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:20,314 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:11:20,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:20,315 INFO L85 PathProgramCache]: Analyzing trace with hash -377444956, now seen corresponding path program 1 times [2024-11-28 03:11:20,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:20,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333029353] [2024-11-28 03:11:20,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:20,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:20,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:20,317 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:20,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:11:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:20,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:11:20,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:21,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:11:21,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:11:34,001 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:34,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333029353] [2024-11-28 03:11:34,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333029353] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:34,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:11:34,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:11:34,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659097575] [2024-11-28 03:11:34,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:34,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:11:34,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:34,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:11:34,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:11:34,003 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:11:37,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:39,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:41,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:42,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:44,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:46,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:51,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:52,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:56,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:11:59,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:02,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:06,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:08,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:11,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:13,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:17,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:18,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:20,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:21,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:23,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:26,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:30,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:35,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:39,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:41,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:42,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:43,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:45,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:50,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:53,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:55,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:12:57,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:01,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:03,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:04,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:04,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:04,969 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2024-11-28 03:13:04,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:13:04,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-28 03:13:04,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:04,988 INFO L225 Difference]: With dead ends: 68 [2024-11-28 03:13:04,988 INFO L226 Difference]: Without dead ends: 65 [2024-11-28 03:13:04,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:13:04,989 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 23 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:04,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 40 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 6 Unknown, 0 Unchecked, 90.9s Time] [2024-11-28 03:13:04,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-28 03:13:04,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-28 03:13:04,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 59 states have internal predecessors, (60), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:13:04,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2024-11-28 03:13:04,996 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 21 [2024-11-28 03:13:04,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:04,997 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2024-11-28 03:13:04,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:13:04,997 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2024-11-28 03:13:04,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 03:13:04,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:04,998 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:05,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:13:05,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:05,199 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:13:05,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:05,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1184108312, now seen corresponding path program 1 times [2024-11-28 03:13:05,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:05,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049862325] [2024-11-28 03:13:05,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:05,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:13:05,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:13:05,201 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:13:05,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:13:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:05,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:13:05,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:06,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:13:06,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:13:21,363 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:21,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049862325] [2024-11-28 03:13:21,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049862325] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:13:21,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:13:21,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:13:21,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500439491] [2024-11-28 03:13:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:21,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:13:21,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:21,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:13:21,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:13:21,365 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:13:26,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:30,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:31,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:34,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:38,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:39,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:41,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:42,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:44,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:48,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:52,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:57,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:13:58,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:02,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:05,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:08,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:12,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:13,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:16,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:18,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:19,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:21,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:23,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:26,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:29,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:30,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:32,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:33,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:33,671 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2024-11-28 03:14:33,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:14:33,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-28 03:14:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:33,689 INFO L225 Difference]: With dead ends: 67 [2024-11-28 03:14:33,690 INFO L226 Difference]: Without dead ends: 64 [2024-11-28 03:14:33,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:14:33,690 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:33,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 42 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 5 Unknown, 0 Unchecked, 72.3s Time] [2024-11-28 03:14:33,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-28 03:14:33,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-28 03:14:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 58 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:14:33,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2024-11-28 03:14:33,698 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 22 [2024-11-28 03:14:33,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:33,699 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2024-11-28 03:14:33,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:14:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2024-11-28 03:14:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 03:14:33,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:33,700 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:33,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:14:33,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:33,900 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:14:33,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:33,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1947347930, now seen corresponding path program 1 times [2024-11-28 03:14:33,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:33,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058825044] [2024-11-28 03:14:33,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:33,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:14:33,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:14:33,903 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:14:33,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:14:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:34,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:14:34,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:14:35,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:14:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:14:43,447 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:43,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058825044] [2024-11-28 03:14:43,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058825044] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:14:43,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:14:43,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:14:43,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985132059] [2024-11-28 03:14:43,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:43,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:14:43,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:43,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:14:43,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:14:43,448 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:14:45,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:46,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:49,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:52,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:54,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:58,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:14:59,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:00,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:04,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:05,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:11,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:13,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:15,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:17,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:17,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:17,093 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2024-11-28 03:15:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:17,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-28 03:15:17,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:17,128 INFO L225 Difference]: With dead ends: 66 [2024-11-28 03:15:17,128 INFO L226 Difference]: Without dead ends: 64 [2024-11-28 03:15:17,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:15:17,129 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:17,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 44 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 33.6s Time] [2024-11-28 03:15:17,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-28 03:15:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-28 03:15:17,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 58 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:15:17,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2024-11-28 03:15:17,137 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 23 [2024-11-28 03:15:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:17,137 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2024-11-28 03:15:17,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:17,137 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2024-11-28 03:15:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 03:15:17,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:17,138 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:17,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:15:17,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:17,339 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:15:17,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:17,339 INFO L85 PathProgramCache]: Analyzing trace with hash -238243622, now seen corresponding path program 1 times [2024-11-28 03:15:17,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:17,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425610707] [2024-11-28 03:15:17,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:17,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:17,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:15:17,342 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:15:17,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:15:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:17,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:15:17,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:18,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:15:18,635 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:15:27,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:27,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425610707] [2024-11-28 03:15:27,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425610707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:15:27,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [467335618] [2024-11-28 03:15:27,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:27,934 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:15:27,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:15:27,937 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:15:27,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-28 03:15:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:28,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:15:28,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:29,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:29,405 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:15:29,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [467335618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:29,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:15:29,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 03:15:29,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148651199] [2024-11-28 03:15:29,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:29,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:29,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:29,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:29,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:15:29,407 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:32,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:37,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:38,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:15:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:43,351 INFO L93 Difference]: Finished difference Result 86 states and 88 transitions. [2024-11-28 03:15:43,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:43,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-28 03:15:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:43,365 INFO L225 Difference]: With dead ends: 86 [2024-11-28 03:15:43,365 INFO L226 Difference]: Without dead ends: 74 [2024-11-28 03:15:43,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:15:43,366 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:43,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 52 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-11-28 03:15:43,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-28 03:15:43,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 67. [2024-11-28 03:15:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 50 states have (on average 1.22) internal successors, (61), 60 states have internal predecessors, (61), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:15:43,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2024-11-28 03:15:43,374 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 24 [2024-11-28 03:15:43,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:43,374 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2024-11-28 03:15:43,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:15:43,374 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2024-11-28 03:15:43,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 03:15:43,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:43,375 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:43,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-28 03:15:43,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:15:43,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:43,780 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:15:43,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1864744808, now seen corresponding path program 1 times [2024-11-28 03:15:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [858944659] [2024-11-28 03:15:43,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:43,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:43,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:15:43,785 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:15:43,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:15:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:44,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:15:44,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:15:44,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:15:44,353 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:15:44,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858944659] [2024-11-28 03:15:44,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858944659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:15:44,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:15:44,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:15:44,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082295624] [2024-11-28 03:15:44,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:15:44,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:15:44,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:15:44,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:15:44,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:44,355 INFO L87 Difference]: Start difference. First operand 67 states and 69 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:15:44,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:15:44,427 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2024-11-28 03:15:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:15:44,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-11-28 03:15:44,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:15:44,429 INFO L225 Difference]: With dead ends: 70 [2024-11-28 03:15:44,429 INFO L226 Difference]: Without dead ends: 69 [2024-11-28 03:15:44,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:15:44,429 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:15:44,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:15:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-28 03:15:44,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-11-28 03:15:44,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 62 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 03:15:44,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2024-11-28 03:15:44,436 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 32 [2024-11-28 03:15:44,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:15:44,436 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2024-11-28 03:15:44,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:15:44,436 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2024-11-28 03:15:44,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 03:15:44,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:15:44,439 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:15:44,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 03:15:44,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:44,640 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-28 03:15:44,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:15:44,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1624172544, now seen corresponding path program 1 times [2024-11-28 03:15:44,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:15:44,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627419491] [2024-11-28 03:15:44,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:15:44,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:15:44,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:15:44,646 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:15:44,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26ac7567-959d-4de2-a92e-242674b80b59/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:15:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:15:45,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:15:45,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:15:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:15:46,796 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:16:44,596 WARN L873 $PredicateComparison]: unable to prove that (bvsle (_ bv170141183460469231722463931679029329920 127) (let ((.cse0 ((_ sign_extend 32) |c_ULTIMATE.start_main_~z~0#1|))) (bvmul ((_ sign_extend 63) .cse0) ((_ sign_extend 63) (bvadd (_ bv1 64) .cse0))))) is different from true