./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/nested6.i --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_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/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_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/nested6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/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_d53e15eb-7c92-45d7-a79e-07cc25ff6846/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 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:09:10,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:09:10,730 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:09:10,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:09:10,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:09:10,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:09:10,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:09:10,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:09:10,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:09:10,795 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:09:10,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:09:10,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:09:10,797 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:09:10,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:09:10,797 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:09:10,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:09:10,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:09:10,797 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:09:10,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:09:10,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:09:10,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:09:10,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:09:10,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:09:10,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:09:10,800 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:09:10,800 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:09:10,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:09:10,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:09:10,801 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:09:10,801 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:09:10,802 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:09:10,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:09:10,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:09:10,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:09:10,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:10,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:09:10,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:09:10,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:09:10,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:09:10,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:10,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:09:10,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:09:10,804 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:09:10,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:09:10,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:09:10,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:09:10,805 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:09:10,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:09:10,805 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:09:10,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:09:10,805 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_d53e15eb-7c92-45d7-a79e-07cc25ff6846/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 -> 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc [2024-11-27 20:09:11,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:09:11,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:09:11,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:09:11,210 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:09:11,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:09:11,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-invgen/nested6.i [2024-11-27 20:09:15,221 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/data/435e5dbec/1c17aa39914e4270be186f26e5ce49ff/FLAG3e5a42744 [2024-11-27 20:09:15,580 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:09:15,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/sv-benchmarks/c/loop-invgen/nested6.i [2024-11-27 20:09:15,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/data/435e5dbec/1c17aa39914e4270be186f26e5ce49ff/FLAG3e5a42744 [2024-11-27 20:09:15,802 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/data/435e5dbec/1c17aa39914e4270be186f26e5ce49ff [2024-11-27 20:09:15,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:09:15,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:09:15,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:09:15,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:09:15,817 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:09:15,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:09:15" (1/1) ... [2024-11-27 20:09:15,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee217cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:15, skipping insertion in model container [2024-11-27 20:09:15,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:09:15" (1/1) ... [2024-11-27 20:09:15,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:09:16,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:09:16,029 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:09:16,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:09:16,067 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:09:16,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16 WrapperNode [2024-11-27 20:09:16,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:09:16,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:09:16,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:09:16,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:09:16,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,097 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2024-11-27 20:09:16,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:09:16,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:09:16,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:09:16,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:09:16,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,118 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]. [2024-11-27 20:09:16,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,121 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:09:16,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:09:16,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:09:16,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:09:16,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (1/1) ... [2024-11-27 20:09:16,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:09:16,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:16,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:09:16,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:09:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:09:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:09:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:09:16,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:09:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:09:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:09:16,301 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:09:16,304 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:09:16,515 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-27 20:09:16,515 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:09:16,526 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:09:16,527 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-27 20:09:16,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:09:16 BoogieIcfgContainer [2024-11-27 20:09:16,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:09:16,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:09:16,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:09:16,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:09:16,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:09:15" (1/3) ... [2024-11-27 20:09:16,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc90235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:09:16, skipping insertion in model container [2024-11-27 20:09:16,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:09:16" (2/3) ... [2024-11-27 20:09:16,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc90235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:09:16, skipping insertion in model container [2024-11-27 20:09:16,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:09:16" (3/3) ... [2024-11-27 20:09:16,538 INFO L128 eAbstractionObserver]: Analyzing ICFG nested6.i [2024-11-27 20:09:16,551 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:09:16,552 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG nested6.i that has 2 procedures, 47 locations, 1 initial locations, 3 loop locations, and 10 error locations. [2024-11-27 20:09:16,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:09:16,622 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;@1bbe4e9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:09:16,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-27 20:09:16,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 32 states have (on average 1.65625) internal successors, (53), 43 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 20:09:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-27 20:09:16,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:16,633 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:16,634 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:16,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:16,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1806845292, now seen corresponding path program 1 times [2024-11-27 20:09:16,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:16,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727505716] [2024-11-27 20:09:16,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:16,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:16,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:16,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:16,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727505716] [2024-11-27 20:09:16,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727505716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:16,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:16,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:09:16,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136419564] [2024-11-27 20:09:16,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:16,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:09:16,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:16,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:09:16,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:09:16,897 INFO L87 Difference]: Start difference. First operand has 47 states, 32 states have (on average 1.65625) internal successors, (53), 43 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:17,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:17,019 INFO L93 Difference]: Finished difference Result 111 states and 153 transitions. [2024-11-27 20:09:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:09:17,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-27 20:09:17,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:17,032 INFO L225 Difference]: With dead ends: 111 [2024-11-27 20:09:17,033 INFO L226 Difference]: Without dead ends: 63 [2024-11-27 20:09:17,037 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 [2024-11-27 20:09:17,045 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 21 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:17,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 84 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:17,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-27 20:09:17,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2024-11-27 20:09:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 52 states have internal predecessors, (61), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:09:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 73 transitions. [2024-11-27 20:09:17,111 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 73 transitions. Word has length 7 [2024-11-27 20:09:17,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:17,112 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 73 transitions. [2024-11-27 20:09:17,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:17,112 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2024-11-27 20:09:17,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-27 20:09:17,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:17,114 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:17,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:09:17,116 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:17,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash 353671638, now seen corresponding path program 1 times [2024-11-27 20:09:17,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:17,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183846607] [2024-11-27 20:09:17,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:17,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:17,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:17,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183846607] [2024-11-27 20:09:17,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183846607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:17,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:17,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:09:17,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217467076] [2024-11-27 20:09:17,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:17,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:09:17,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:17,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:09:17,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:09:17,304 INFO L87 Difference]: Start difference. First operand 58 states and 73 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:17,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:17,405 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2024-11-27 20:09:17,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:09:17,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-27 20:09:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:17,407 INFO L225 Difference]: With dead ends: 67 [2024-11-27 20:09:17,407 INFO L226 Difference]: Without dead ends: 65 [2024-11-27 20:09:17,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:09:17,408 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 19 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:17,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 102 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-27 20:09:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2024-11-27 20:09:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 55 states have internal predecessors, (64), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:09:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2024-11-27 20:09:17,427 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 11 [2024-11-27 20:09:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:17,427 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2024-11-27 20:09:17,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:17,431 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2024-11-27 20:09:17,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 20:09:17,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:17,432 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:17,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:09:17,433 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:17,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:17,433 INFO L85 PathProgramCache]: Analyzing trace with hash 582660987, now seen corresponding path program 1 times [2024-11-27 20:09:17,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:17,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352361418] [2024-11-27 20:09:17,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:17,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:17,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:17,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352361418] [2024-11-27 20:09:17,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352361418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:17,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:17,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:09:17,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856215498] [2024-11-27 20:09:17,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:17,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:09:17,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:17,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:09:17,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:09:17,616 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:17,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:17,808 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2024-11-27 20:09:17,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:09:17,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-27 20:09:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:17,811 INFO L225 Difference]: With dead ends: 65 [2024-11-27 20:09:17,813 INFO L226 Difference]: Without dead ends: 64 [2024-11-27 20:09:17,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:17,814 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 29 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:17,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 127 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:17,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-27 20:09:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2024-11-27 20:09:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 55 states have internal predecessors, (63), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:09:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2024-11-27 20:09:17,834 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 14 [2024-11-27 20:09:17,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:17,834 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2024-11-27 20:09:17,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:17,835 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2024-11-27 20:09:17,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 20:09:17,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:17,836 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:17,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:09:17,836 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:17,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:17,837 INFO L85 PathProgramCache]: Analyzing trace with hash 677097885, now seen corresponding path program 1 times [2024-11-27 20:09:17,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:17,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422971249] [2024-11-27 20:09:17,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:17,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:18,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:18,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:18,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422971249] [2024-11-27 20:09:18,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422971249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:18,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292755194] [2024-11-27 20:09:18,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:18,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:18,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:18,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:18,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:09:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:18,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:09:18,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:18,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:18,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:18,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292755194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:18,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:09:18,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-11-27 20:09:18,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065409744] [2024-11-27 20:09:18,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:18,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:09:18,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:18,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:09:18,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:09:18,252 INFO L87 Difference]: Start difference. First operand 61 states and 75 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:18,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:18,439 INFO L93 Difference]: Finished difference Result 117 states and 139 transitions. [2024-11-27 20:09:18,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:09:18,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-27 20:09:18,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:18,441 INFO L225 Difference]: With dead ends: 117 [2024-11-27 20:09:18,441 INFO L226 Difference]: Without dead ends: 79 [2024-11-27 20:09:18,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:09:18,443 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 79 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:18,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 105 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:18,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-27 20:09:18,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 62. [2024-11-27 20:09:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 56 states have internal predecessors, (64), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:09:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2024-11-27 20:09:18,472 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 14 [2024-11-27 20:09:18,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:18,472 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2024-11-27 20:09:18,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:18,473 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2024-11-27 20:09:18,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:09:18,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:18,473 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:18,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:09:18,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:18,674 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:18,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:18,675 INFO L85 PathProgramCache]: Analyzing trace with hash 882621515, now seen corresponding path program 1 times [2024-11-27 20:09:18,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:18,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286257717] [2024-11-27 20:09:18,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:18,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:18,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:18,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:18,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286257717] [2024-11-27 20:09:18,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286257717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:18,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:18,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:09:18,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904139572] [2024-11-27 20:09:18,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:18,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:09:18,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:18,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:09:18,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:09:18,763 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:18,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:18,898 INFO L93 Difference]: Finished difference Result 82 states and 98 transitions. [2024-11-27 20:09:18,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:09:18,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-27 20:09:18,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:18,900 INFO L225 Difference]: With dead ends: 82 [2024-11-27 20:09:18,900 INFO L226 Difference]: Without dead ends: 81 [2024-11-27 20:09:18,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:18,905 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 44 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:18,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 129 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:18,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-27 20:09:18,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2024-11-27 20:09:18,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 68 states have internal predecessors, (79), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:09:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2024-11-27 20:09:18,921 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 15 [2024-11-27 20:09:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:18,921 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2024-11-27 20:09:18,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2024-11-27 20:09:18,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 20:09:18,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:18,922 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:18,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:09:18,923 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:18,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1563661824, now seen corresponding path program 1 times [2024-11-27 20:09:18,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:18,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933020712] [2024-11-27 20:09:18,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:18,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:19,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:19,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:19,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933020712] [2024-11-27 20:09:19,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933020712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:19,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:19,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:09:19,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251530485] [2024-11-27 20:09:19,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:19,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:09:19,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:19,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:09:19,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:19,105 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:09:19,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:19,299 INFO L93 Difference]: Finished difference Result 116 states and 140 transitions. [2024-11-27 20:09:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:09:19,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-27 20:09:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:19,302 INFO L225 Difference]: With dead ends: 116 [2024-11-27 20:09:19,304 INFO L226 Difference]: Without dead ends: 115 [2024-11-27 20:09:19,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:09:19,306 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 68 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:19,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 216 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-27 20:09:19,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 76. [2024-11-27 20:09:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 68 states have internal predecessors, (78), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:09:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2024-11-27 20:09:19,333 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 21 [2024-11-27 20:09:19,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:19,334 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2024-11-27 20:09:19,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:09:19,334 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2024-11-27 20:09:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 20:09:19,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:19,335 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:19,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:09:19,335 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:19,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:19,336 INFO L85 PathProgramCache]: Analyzing trace with hash 474320667, now seen corresponding path program 1 times [2024-11-27 20:09:19,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:19,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901552853] [2024-11-27 20:09:19,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:19,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:09:19,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:19,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901552853] [2024-11-27 20:09:19,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901552853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:19,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117982007] [2024-11-27 20:09:19,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:19,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:19,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:19,474 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:19,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:09:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:19,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:09:19,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:19,716 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:19,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117982007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:19,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:09:19,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2024-11-27 20:09:19,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604976805] [2024-11-27 20:09:19,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:19,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:09:19,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:19,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:09:19,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:09:19,719 INFO L87 Difference]: Start difference. First operand 76 states and 96 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:19,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:19,920 INFO L93 Difference]: Finished difference Result 141 states and 173 transitions. [2024-11-27 20:09:19,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:09:19,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-27 20:09:19,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:19,922 INFO L225 Difference]: With dead ends: 141 [2024-11-27 20:09:19,922 INFO L226 Difference]: Without dead ends: 85 [2024-11-27 20:09:19,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:09:19,924 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 52 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:19,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 151 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:19,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-27 20:09:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 77. [2024-11-27 20:09:19,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 69 states have internal predecessors, (79), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:09:19,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 97 transitions. [2024-11-27 20:09:19,947 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 97 transitions. Word has length 21 [2024-11-27 20:09:19,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:19,947 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 97 transitions. [2024-11-27 20:09:19,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:19,947 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 97 transitions. [2024-11-27 20:09:19,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-27 20:09:19,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:19,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:19,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:20,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:20,152 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:20,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:20,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1228876199, now seen corresponding path program 1 times [2024-11-27 20:09:20,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:20,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011381561] [2024-11-27 20:09:20,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:20,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:09:20,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:20,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011381561] [2024-11-27 20:09:20,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011381561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:20,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:20,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:09:20,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570073819] [2024-11-27 20:09:20,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:20,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:09:20,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:20,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:09:20,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:20,254 INFO L87 Difference]: Start difference. First operand 77 states and 97 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:09:20,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:20,412 INFO L93 Difference]: Finished difference Result 88 states and 105 transitions. [2024-11-27 20:09:20,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:09:20,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-27 20:09:20,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:20,414 INFO L225 Difference]: With dead ends: 88 [2024-11-27 20:09:20,414 INFO L226 Difference]: Without dead ends: 87 [2024-11-27 20:09:20,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:09:20,416 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 43 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:20,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 136 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:20,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-27 20:09:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2024-11-27 20:09:20,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 74 states have internal predecessors, (84), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:09:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 104 transitions. [2024-11-27 20:09:20,450 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 104 transitions. Word has length 22 [2024-11-27 20:09:20,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:20,451 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 104 transitions. [2024-11-27 20:09:20,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:09:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 104 transitions. [2024-11-27 20:09:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-27 20:09:20,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:20,452 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] [2024-11-27 20:09:20,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:09:20,453 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:20,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:20,453 INFO L85 PathProgramCache]: Analyzing trace with hash -110684573, now seen corresponding path program 1 times [2024-11-27 20:09:20,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:20,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581295643] [2024-11-27 20:09:20,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:20,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:20,615 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:09:20,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:20,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581295643] [2024-11-27 20:09:20,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581295643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:20,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592625745] [2024-11-27 20:09:20,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:20,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:20,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:20,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:20,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:09:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:20,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:09:20,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:09:20,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:20,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592625745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:20,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:09:20,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-27 20:09:20,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359571223] [2024-11-27 20:09:20,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:20,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:09:20,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:20,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:09:20,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:20,781 INFO L87 Difference]: Start difference. First operand 83 states and 104 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-27 20:09:20,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:20,893 INFO L93 Difference]: Finished difference Result 86 states and 104 transitions. [2024-11-27 20:09:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:09:20,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 30 [2024-11-27 20:09:20,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:20,898 INFO L225 Difference]: With dead ends: 86 [2024-11-27 20:09:20,898 INFO L226 Difference]: Without dead ends: 83 [2024-11-27 20:09:20,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:20,899 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 33 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:20,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 133 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:20,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-27 20:09:20,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2024-11-27 20:09:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 71 states have internal predecessors, (81), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:09:20,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2024-11-27 20:09:20,928 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 30 [2024-11-27 20:09:20,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:20,929 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2024-11-27 20:09:20,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-27 20:09:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2024-11-27 20:09:20,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-27 20:09:20,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:20,930 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] [2024-11-27 20:09:20,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:09:21,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:21,131 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:21,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:21,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2063798203, now seen corresponding path program 1 times [2024-11-27 20:09:21,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:21,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853289649] [2024-11-27 20:09:21,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:21,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:21,223 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:09:21,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:21,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853289649] [2024-11-27 20:09:21,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853289649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:21,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:21,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:09:21,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27184774] [2024-11-27 20:09:21,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:21,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:09:21,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:21,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:09:21,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:09:21,225 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-11-27 20:09:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:21,299 INFO L93 Difference]: Finished difference Result 132 states and 169 transitions. [2024-11-27 20:09:21,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:09:21,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 31 [2024-11-27 20:09:21,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:21,302 INFO L225 Difference]: With dead ends: 132 [2024-11-27 20:09:21,302 INFO L226 Difference]: Without dead ends: 82 [2024-11-27 20:09:21,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:09:21,303 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 17 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:21,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 78 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:09:21,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-27 20:09:21,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-27 20:09:21,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 64 states have (on average 1.296875) internal successors, (83), 73 states have internal predecessors, (83), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:09:21,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 103 transitions. [2024-11-27 20:09:21,329 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 103 transitions. Word has length 31 [2024-11-27 20:09:21,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:21,329 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 103 transitions. [2024-11-27 20:09:21,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-11-27 20:09:21,330 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 103 transitions. [2024-11-27 20:09:21,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-27 20:09:21,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:21,334 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:09:21,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:09:21,334 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:21,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:21,335 INFO L85 PathProgramCache]: Analyzing trace with hash 863745590, now seen corresponding path program 1 times [2024-11-27 20:09:21,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:21,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124160455] [2024-11-27 20:09:21,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:21,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:09:21,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:21,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124160455] [2024-11-27 20:09:21,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124160455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:21,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653917982] [2024-11-27 20:09:21,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:21,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:21,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:21,464 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:21,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:09:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:21,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:09:21,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:21,620 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:09:21,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:21,725 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-27 20:09:21,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653917982] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:21,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:21,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-27 20:09:21,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597410242] [2024-11-27 20:09:21,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:21,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:09:21,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:21,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:09:21,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:09:21,727 INFO L87 Difference]: Start difference. First operand 82 states and 103 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 20:09:21,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:21,860 INFO L93 Difference]: Finished difference Result 116 states and 142 transitions. [2024-11-27 20:09:21,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:09:21,861 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 31 [2024-11-27 20:09:21,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:21,862 INFO L225 Difference]: With dead ends: 116 [2024-11-27 20:09:21,862 INFO L226 Difference]: Without dead ends: 113 [2024-11-27 20:09:21,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:09:21,863 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 92 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:21,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 204 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:21,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-27 20:09:21,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 106. [2024-11-27 20:09:21,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 95 states have internal predecessors, (111), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:09:21,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 137 transitions. [2024-11-27 20:09:21,882 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 137 transitions. Word has length 31 [2024-11-27 20:09:21,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:21,882 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 137 transitions. [2024-11-27 20:09:21,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 20:09:21,883 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 137 transitions. [2024-11-27 20:09:21,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-27 20:09:21,884 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:21,884 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] [2024-11-27 20:09:21,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:22,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:22,088 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:22,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:22,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1649334005, now seen corresponding path program 1 times [2024-11-27 20:09:22,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:22,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202865885] [2024-11-27 20:09:22,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:22,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:09:22,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202865885] [2024-11-27 20:09:22,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202865885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150372415] [2024-11-27 20:09:22,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:22,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:22,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:22,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:22,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:09:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:22,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:09:22,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:22,401 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:09:22,402 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:09:22,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150372415] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:22,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:22,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-11-27 20:09:22,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187751302] [2024-11-27 20:09:22,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:22,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:09:22,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:22,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:09:22,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:09:22,541 INFO L87 Difference]: Start difference. First operand 106 states and 137 transitions. Second operand has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:09:23,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:23,014 INFO L93 Difference]: Finished difference Result 282 states and 359 transitions. [2024-11-27 20:09:23,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:09:23,014 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 33 [2024-11-27 20:09:23,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:23,017 INFO L225 Difference]: With dead ends: 282 [2024-11-27 20:09:23,017 INFO L226 Difference]: Without dead ends: 281 [2024-11-27 20:09:23,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2024-11-27 20:09:23,019 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 209 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:23,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 394 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:09:23,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-27 20:09:23,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 127. [2024-11-27 20:09:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 104 states have (on average 1.2692307692307692) internal successors, (132), 113 states have internal predecessors, (132), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:09:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 164 transitions. [2024-11-27 20:09:23,060 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 164 transitions. Word has length 33 [2024-11-27 20:09:23,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:23,061 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 164 transitions. [2024-11-27 20:09:23,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 20:09:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 164 transitions. [2024-11-27 20:09:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-27 20:09:23,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:23,063 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-27 20:09:23,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:09:23,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:09:23,267 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:23,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:23,268 INFO L85 PathProgramCache]: Analyzing trace with hash -317638022, now seen corresponding path program 1 times [2024-11-27 20:09:23,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:23,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112927051] [2024-11-27 20:09:23,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:23,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:23,526 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:09:23,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:23,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112927051] [2024-11-27 20:09:23,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112927051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:23,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:23,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:09:23,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566700937] [2024-11-27 20:09:23,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:23,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:09:23,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:23,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:09:23,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:09:23,529 INFO L87 Difference]: Start difference. First operand 127 states and 164 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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) [2024-11-27 20:09:23,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:23,846 INFO L93 Difference]: Finished difference Result 178 states and 225 transitions. [2024-11-27 20:09:23,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:09:23,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 37 [2024-11-27 20:09:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:23,850 INFO L225 Difference]: With dead ends: 178 [2024-11-27 20:09:23,850 INFO L226 Difference]: Without dead ends: 177 [2024-11-27 20:09:23,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:09:23,851 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 59 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:23,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 231 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:09:23,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-27 20:09:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 127. [2024-11-27 20:09:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 113 states have internal predecessors, (131), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:09:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2024-11-27 20:09:23,882 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 37 [2024-11-27 20:09:23,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:23,885 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2024-11-27 20:09:23,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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) [2024-11-27 20:09:23,886 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2024-11-27 20:09:23,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:09:23,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:23,888 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-27 20:09:23,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:09:23,889 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:23,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:23,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1256844001, now seen corresponding path program 1 times [2024-11-27 20:09:23,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:23,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618766520] [2024-11-27 20:09:23,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:23,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:09:24,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:24,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618766520] [2024-11-27 20:09:24,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618766520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:24,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529916302] [2024-11-27 20:09:24,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:24,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:24,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:24,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:24,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:09:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:24,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:09:24,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:24,347 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:09:24,348 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:09:24,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529916302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:24,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:24,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-11-27 20:09:24,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895215213] [2024-11-27 20:09:24,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:24,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:09:24,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:24,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:09:24,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:09:24,565 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-27 20:09:25,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:25,575 INFO L93 Difference]: Finished difference Result 301 states and 403 transitions. [2024-11-27 20:09:25,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-27 20:09:25,575 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 38 [2024-11-27 20:09:25,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:25,579 INFO L225 Difference]: With dead ends: 301 [2024-11-27 20:09:25,579 INFO L226 Difference]: Without dead ends: 299 [2024-11-27 20:09:25,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=273, Invalid=987, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:09:25,581 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 310 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:25,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 368 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:09:25,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-27 20:09:25,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 186. [2024-11-27 20:09:25,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 155 states have (on average 1.2580645161290323) internal successors, (195), 165 states have internal predecessors, (195), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 20:09:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 243 transitions. [2024-11-27 20:09:25,635 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 243 transitions. Word has length 38 [2024-11-27 20:09:25,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:25,636 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 243 transitions. [2024-11-27 20:09:25,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-27 20:09:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 243 transitions. [2024-11-27 20:09:25,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 20:09:25,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:25,637 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:25,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:09:25,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:25,839 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:25,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:25,839 INFO L85 PathProgramCache]: Analyzing trace with hash 652100158, now seen corresponding path program 1 times [2024-11-27 20:09:25,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:25,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991284369] [2024-11-27 20:09:25,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:25,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-27 20:09:25,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:25,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991284369] [2024-11-27 20:09:25,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991284369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:25,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:25,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:09:25,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379744858] [2024-11-27 20:09:25,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:25,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:09:25,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:25,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:09:25,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:09:25,933 INFO L87 Difference]: Start difference. First operand 186 states and 243 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-27 20:09:26,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:26,011 INFO L93 Difference]: Finished difference Result 186 states and 243 transitions. [2024-11-27 20:09:26,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:09:26,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 42 [2024-11-27 20:09:26,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:26,014 INFO L225 Difference]: With dead ends: 186 [2024-11-27 20:09:26,014 INFO L226 Difference]: Without dead ends: 185 [2024-11-27 20:09:26,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:09:26,015 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 20 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:26,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 72 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:09:26,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-27 20:09:26,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-27 20:09:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 155 states have (on average 1.2516129032258065) internal successors, (194), 164 states have internal predecessors, (194), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 20:09:26,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 242 transitions. [2024-11-27 20:09:26,062 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 242 transitions. Word has length 42 [2024-11-27 20:09:26,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:26,062 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 242 transitions. [2024-11-27 20:09:26,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-27 20:09:26,062 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 242 transitions. [2024-11-27 20:09:26,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 20:09:26,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:26,064 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-27 20:09:26,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:09:26,064 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:26,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:26,065 INFO L85 PathProgramCache]: Analyzing trace with hash 512278199, now seen corresponding path program 1 times [2024-11-27 20:09:26,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:26,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809855700] [2024-11-27 20:09:26,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:26,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:09:26,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:26,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809855700] [2024-11-27 20:09:26,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809855700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:26,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987544962] [2024-11-27 20:09:26,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:26,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:26,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:26,311 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:26,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:09:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:26,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:09:26,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:09:26,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:09:26,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987544962] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:26,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:26,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-27 20:09:26,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067864871] [2024-11-27 20:09:26,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:26,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:09:26,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:26,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:09:26,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:09:26,754 INFO L87 Difference]: Start difference. First operand 185 states and 242 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-27 20:09:27,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:27,036 INFO L93 Difference]: Finished difference Result 268 states and 344 transitions. [2024-11-27 20:09:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:09:27,037 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 44 [2024-11-27 20:09:27,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:27,039 INFO L225 Difference]: With dead ends: 268 [2024-11-27 20:09:27,039 INFO L226 Difference]: Without dead ends: 189 [2024-11-27 20:09:27,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:09:27,041 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 122 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:27,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 196 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:09:27,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-27 20:09:27,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2024-11-27 20:09:27,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 155 states have (on average 1.2451612903225806) internal successors, (193), 164 states have internal predecessors, (193), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 20:09:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 241 transitions. [2024-11-27 20:09:27,079 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 241 transitions. Word has length 44 [2024-11-27 20:09:27,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:27,079 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 241 transitions. [2024-11-27 20:09:27,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-27 20:09:27,081 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 241 transitions. [2024-11-27 20:09:27,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-27 20:09:27,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:27,082 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:27,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:27,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:09:27,283 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:27,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:27,284 INFO L85 PathProgramCache]: Analyzing trace with hash -726640609, now seen corresponding path program 1 times [2024-11-27 20:09:27,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:27,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721891696] [2024-11-27 20:09:27,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:27,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:09:27,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:27,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721891696] [2024-11-27 20:09:27,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721891696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:27,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160191675] [2024-11-27 20:09:27,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:27,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:27,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:27,447 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:27,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:09:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:27,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:09:27,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:09:27,597 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:27,795 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:09:27,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160191675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:27,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:27,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-27 20:09:27,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884213469] [2024-11-27 20:09:27,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:27,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:09:27,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:27,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:09:27,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:09:27,797 INFO L87 Difference]: Start difference. First operand 185 states and 241 transitions. Second operand has 17 states, 16 states have (on average 3.4375) internal successors, (55), 17 states have internal predecessors, (55), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 20:09:28,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:28,276 INFO L93 Difference]: Finished difference Result 280 states and 371 transitions. [2024-11-27 20:09:28,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:09:28,277 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.4375) internal successors, (55), 17 states have internal predecessors, (55), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 56 [2024-11-27 20:09:28,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:28,279 INFO L225 Difference]: With dead ends: 280 [2024-11-27 20:09:28,279 INFO L226 Difference]: Without dead ends: 279 [2024-11-27 20:09:28,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2024-11-27 20:09:28,281 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 326 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:28,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 237 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:09:28,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-27 20:09:28,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 269. [2024-11-27 20:09:28,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 221 states have (on average 1.2714932126696832) internal successors, (281), 236 states have internal predecessors, (281), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 20:09:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 365 transitions. [2024-11-27 20:09:28,329 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 365 transitions. Word has length 56 [2024-11-27 20:09:28,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:28,330 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 365 transitions. [2024-11-27 20:09:28,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.4375) internal successors, (55), 17 states have internal predecessors, (55), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-27 20:09:28,330 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 365 transitions. [2024-11-27 20:09:28,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-27 20:09:28,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:28,331 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2024-11-27 20:09:28,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:28,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 20:09:28,533 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:28,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:28,534 INFO L85 PathProgramCache]: Analyzing trace with hash -459799299, now seen corresponding path program 2 times [2024-11-27 20:09:28,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:28,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525892350] [2024-11-27 20:09:28,534 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:09:28,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:28,545 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:09:28,545 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-27 20:09:28,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:28,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525892350] [2024-11-27 20:09:28,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525892350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:28,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:28,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:09:28,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20469244] [2024-11-27 20:09:28,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:28,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:09:28,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:28,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:09:28,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:09:28,604 INFO L87 Difference]: Start difference. First operand 269 states and 365 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-27 20:09:28,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:28,878 INFO L93 Difference]: Finished difference Result 367 states and 502 transitions. [2024-11-27 20:09:28,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:09:28,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 60 [2024-11-27 20:09:28,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:28,882 INFO L225 Difference]: With dead ends: 367 [2024-11-27 20:09:28,882 INFO L226 Difference]: Without dead ends: 366 [2024-11-27 20:09:28,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:09:28,883 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 80 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:28,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 120 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:28,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-27 20:09:28,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 269. [2024-11-27 20:09:28,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 221 states have (on average 1.253393665158371) internal successors, (277), 236 states have internal predecessors, (277), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 20:09:28,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 361 transitions. [2024-11-27 20:09:28,942 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 361 transitions. Word has length 60 [2024-11-27 20:09:28,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:28,942 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 361 transitions. [2024-11-27 20:09:28,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-27 20:09:28,942 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2024-11-27 20:09:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-27 20:09:28,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:28,944 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:28,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:09:28,944 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:28,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:28,944 INFO L85 PathProgramCache]: Analyzing trace with hash 139518751, now seen corresponding path program 1 times [2024-11-27 20:09:28,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:28,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471160740] [2024-11-27 20:09:28,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:28,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:09:29,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:29,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471160740] [2024-11-27 20:09:29,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471160740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:29,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301238894] [2024-11-27 20:09:29,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:29,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:29,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:29,281 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:29,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:09:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:29,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:09:29,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:09:29,538 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:09:29,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301238894] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:29,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:29,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2024-11-27 20:09:29,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384713661] [2024-11-27 20:09:29,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:29,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-27 20:09:29,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:29,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-27 20:09:29,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=767, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:09:29,857 INFO L87 Difference]: Start difference. First operand 269 states and 361 transitions. Second operand has 31 states, 30 states have (on average 3.2333333333333334) internal successors, (97), 31 states have internal predecessors, (97), 12 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-27 20:09:31,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:31,837 INFO L93 Difference]: Finished difference Result 856 states and 1181 transitions. [2024-11-27 20:09:31,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-27 20:09:31,838 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.2333333333333334) internal successors, (97), 31 states have internal predecessors, (97), 12 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 12 states have call successors, (15) Word has length 60 [2024-11-27 20:09:31,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:31,846 INFO L225 Difference]: With dead ends: 856 [2024-11-27 20:09:31,846 INFO L226 Difference]: Without dead ends: 855 [2024-11-27 20:09:31,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1831 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1059, Invalid=4947, Unknown=0, NotChecked=0, Total=6006 [2024-11-27 20:09:31,852 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 454 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:31,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 657 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:09:31,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-27 20:09:31,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 325. [2024-11-27 20:09:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 269 states have (on average 1.237918215613383) internal successors, (333), 284 states have internal predecessors, (333), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-27 20:09:31,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 433 transitions. [2024-11-27 20:09:31,949 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 433 transitions. Word has length 60 [2024-11-27 20:09:31,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:31,950 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 433 transitions. [2024-11-27 20:09:31,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.2333333333333334) internal successors, (97), 31 states have internal predecessors, (97), 12 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-27 20:09:31,951 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 433 transitions. [2024-11-27 20:09:31,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-27 20:09:31,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:31,953 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:31,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:32,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:32,157 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:32,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:32,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2006195440, now seen corresponding path program 1 times [2024-11-27 20:09:32,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:32,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444911317] [2024-11-27 20:09:32,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:32,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:32,231 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-27 20:09:32,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:32,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444911317] [2024-11-27 20:09:32,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444911317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:32,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:32,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:09:32,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329562451] [2024-11-27 20:09:32,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:32,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:09:32,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:32,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:09:32,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:09:32,233 INFO L87 Difference]: Start difference. First operand 325 states and 433 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:09:32,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:32,360 INFO L93 Difference]: Finished difference Result 325 states and 433 transitions. [2024-11-27 20:09:32,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:09:32,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 62 [2024-11-27 20:09:32,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:32,363 INFO L225 Difference]: With dead ends: 325 [2024-11-27 20:09:32,363 INFO L226 Difference]: Without dead ends: 324 [2024-11-27 20:09:32,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:32,367 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 31 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:32,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 71 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:32,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-27 20:09:32,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-11-27 20:09:32,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 269 states have (on average 1.2230483271375465) internal successors, (329), 283 states have internal predecessors, (329), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-27 20:09:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 429 transitions. [2024-11-27 20:09:32,449 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 429 transitions. Word has length 62 [2024-11-27 20:09:32,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:32,449 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 429 transitions. [2024-11-27 20:09:32,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:09:32,450 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 429 transitions. [2024-11-27 20:09:32,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-27 20:09:32,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:32,451 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:32,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 20:09:32,452 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:32,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:32,452 INFO L85 PathProgramCache]: Analyzing trace with hash 509145616, now seen corresponding path program 2 times [2024-11-27 20:09:32,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:32,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523165941] [2024-11-27 20:09:32,453 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:09:32,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:32,459 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:09:32,459 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-27 20:09:32,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:32,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523165941] [2024-11-27 20:09:32,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523165941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:32,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029599372] [2024-11-27 20:09:32,483 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:09:32,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:32,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:32,486 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:32,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:09:32,533 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:09:32,533 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:32,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:09:32,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-27 20:09:32,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:32,744 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-27 20:09:32,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029599372] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:32,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:32,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-27 20:09:32,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584759451] [2024-11-27 20:09:32,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:32,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:09:32,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:32,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:09:32,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:09:32,746 INFO L87 Difference]: Start difference. First operand 324 states and 429 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:09:32,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:32,853 INFO L93 Difference]: Finished difference Result 324 states and 429 transitions. [2024-11-27 20:09:32,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:09:32,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 61 [2024-11-27 20:09:32,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:32,858 INFO L225 Difference]: With dead ends: 324 [2024-11-27 20:09:32,858 INFO L226 Difference]: Without dead ends: 323 [2024-11-27 20:09:32,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:32,860 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 30 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:32,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 59 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:09:32,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-27 20:09:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 273. [2024-11-27 20:09:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 226 states have (on average 1.2168141592920354) internal successors, (275), 237 states have internal predecessors, (275), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-27 20:09:32,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 361 transitions. [2024-11-27 20:09:32,924 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 361 transitions. Word has length 61 [2024-11-27 20:09:32,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:32,924 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 361 transitions. [2024-11-27 20:09:32,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:09:32,925 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 361 transitions. [2024-11-27 20:09:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 20:09:32,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:32,932 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:32,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:09:33,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 20:09:33,133 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:33,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:33,134 INFO L85 PathProgramCache]: Analyzing trace with hash -280383829, now seen corresponding path program 2 times [2024-11-27 20:09:33,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:33,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430249416] [2024-11-27 20:09:33,134 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:09:33,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:33,146 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:09:33,146 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:33,269 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-27 20:09:33,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:33,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430249416] [2024-11-27 20:09:33,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430249416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:33,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601754628] [2024-11-27 20:09:33,270 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:09:33,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:33,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:33,273 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:33,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:09:33,331 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:09:33,331 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:33,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:09:33,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:33,474 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-27 20:09:33,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:33,635 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-27 20:09:33,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601754628] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:33,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:33,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 10 [2024-11-27 20:09:33,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283856024] [2024-11-27 20:09:33,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:33,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:09:33,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:33,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:09:33,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:09:33,638 INFO L87 Difference]: Start difference. First operand 273 states and 361 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 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) [2024-11-27 20:09:33,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:33,872 INFO L93 Difference]: Finished difference Result 273 states and 361 transitions. [2024-11-27 20:09:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:09:33,872 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 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 70 [2024-11-27 20:09:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:33,875 INFO L225 Difference]: With dead ends: 273 [2024-11-27 20:09:33,875 INFO L226 Difference]: Without dead ends: 272 [2024-11-27 20:09:33,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 130 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:09:33,881 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 87 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:33,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 109 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:33,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-27 20:09:33,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 164. [2024-11-27 20:09:33,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 134 states have (on average 1.208955223880597) internal successors, (162), 144 states have internal predecessors, (162), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 20:09:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 216 transitions. [2024-11-27 20:09:33,926 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 216 transitions. Word has length 70 [2024-11-27 20:09:33,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:33,926 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 216 transitions. [2024-11-27 20:09:33,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 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) [2024-11-27 20:09:33,927 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 216 transitions. [2024-11-27 20:09:33,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-27 20:09:33,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:33,928 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:33,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:09:34,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 20:09:34,129 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:34,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash 541670263, now seen corresponding path program 3 times [2024-11-27 20:09:34,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:34,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799126611] [2024-11-27 20:09:34,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:09:34,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:34,149 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:09:34,150 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-27 20:09:34,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:34,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799126611] [2024-11-27 20:09:34,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799126611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:34,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:34,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:09:34,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901459048] [2024-11-27 20:09:34,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:34,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:09:34,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:34,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:09:34,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:09:34,306 INFO L87 Difference]: Start difference. First operand 164 states and 216 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:09:34,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:34,575 INFO L93 Difference]: Finished difference Result 269 states and 358 transitions. [2024-11-27 20:09:34,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:09:34,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 76 [2024-11-27 20:09:34,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:34,578 INFO L225 Difference]: With dead ends: 269 [2024-11-27 20:09:34,578 INFO L226 Difference]: Without dead ends: 268 [2024-11-27 20:09:34,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:09:34,580 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 43 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:34,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 112 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:09:34,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-27 20:09:34,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 131. [2024-11-27 20:09:34,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.1851851851851851) internal successors, (128), 115 states have internal predecessors, (128), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:09:34,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 170 transitions. [2024-11-27 20:09:34,635 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 170 transitions. Word has length 76 [2024-11-27 20:09:34,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:34,636 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 170 transitions. [2024-11-27 20:09:34,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:09:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 170 transitions. [2024-11-27 20:09:34,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-27 20:09:34,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:34,637 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:34,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 20:09:34,638 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:34,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:34,638 INFO L85 PathProgramCache]: Analyzing trace with hash -295567172, now seen corresponding path program 1 times [2024-11-27 20:09:34,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:34,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538779899] [2024-11-27 20:09:34,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:34,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:34,992 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:09:34,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:34,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538779899] [2024-11-27 20:09:34,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538779899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:34,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874840023] [2024-11-27 20:09:34,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:34,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:34,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:34,997 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:35,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:09:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:35,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:09:35,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 99 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-27 20:09:35,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 35 proven. 13 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-27 20:09:35,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874840023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:35,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:35,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 22 [2024-11-27 20:09:35,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487076960] [2024-11-27 20:09:35,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:35,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:09:35,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:35,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:09:35,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:09:35,574 INFO L87 Difference]: Start difference. First operand 131 states and 170 transitions. Second operand has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 20:09:36,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:36,009 INFO L93 Difference]: Finished difference Result 249 states and 325 transitions. [2024-11-27 20:09:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:09:36,010 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 79 [2024-11-27 20:09:36,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:36,012 INFO L225 Difference]: With dead ends: 249 [2024-11-27 20:09:36,012 INFO L226 Difference]: Without dead ends: 195 [2024-11-27 20:09:36,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 142 SyntacticMatches, 8 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:09:36,013 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 119 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:36,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 215 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:09:36,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-27 20:09:36,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 164. [2024-11-27 20:09:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 135 states have (on average 1.1777777777777778) internal successors, (159), 144 states have internal predecessors, (159), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 20:09:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 213 transitions. [2024-11-27 20:09:36,078 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 213 transitions. Word has length 79 [2024-11-27 20:09:36,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:36,078 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 213 transitions. [2024-11-27 20:09:36,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-27 20:09:36,079 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 213 transitions. [2024-11-27 20:09:36,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 20:09:36,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:36,080 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:36,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:09:36,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:09:36,285 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-27 20:09:36,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:36,286 INFO L85 PathProgramCache]: Analyzing trace with hash -928619338, now seen corresponding path program 2 times [2024-11-27 20:09:36,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:36,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842191848] [2024-11-27 20:09:36,286 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:09:36,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:36,297 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:09:36,297 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:36,337 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-27 20:09:36,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:36,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842191848] [2024-11-27 20:09:36,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842191848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:36,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117998171] [2024-11-27 20:09:36,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:09:36,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:36,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:36,342 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:36,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:09:36,393 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:09:36,394 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:09:36,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:09:36,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-27 20:09:36,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-27 20:09:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117998171] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:36,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:36,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 20:09:36,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337924175] [2024-11-27 20:09:36,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:36,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:09:36,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:36,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:09:36,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:09:36,648 INFO L87 Difference]: Start difference. First operand 164 states and 213 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-27 20:09:36,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:36,790 INFO L93 Difference]: Finished difference Result 164 states and 213 transitions. [2024-11-27 20:09:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:09:36,790 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), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 95 [2024-11-27 20:09:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:36,791 INFO L225 Difference]: With dead ends: 164 [2024-11-27 20:09:36,791 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:09:36,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:09:36,792 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:36,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 108 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:09:36,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:09:36,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:09:36,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:09:36,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:09:36,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2024-11-27 20:09:36,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:36,794 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:09:36,795 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), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-27 20:09:36,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:09:36,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:09:36,798 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-27 20:09:36,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-27 20:09:36,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-27 20:09:36,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-27 20:09:36,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-27 20:09:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-27 20:09:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-27 20:09:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-27 20:09:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-27 20:09:36,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-27 20:09:36,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 20:09:37,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 20:09:37,004 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:37,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:09:42,862 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 230 DAG size of output: 116 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-27 20:09:52,188 WARN L286 SmtUtils]: Spent 9.32s on a formula simplification. DAG size of input: 228 DAG size of output: 133 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-27 20:10:02,062 WARN L286 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 228 DAG size of output: 133 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-27 20:10:04,441 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:10:04,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:10:04 BoogieIcfgContainer [2024-11-27 20:10:04,464 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:10:04,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:10:04,465 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:10:04,465 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:10:04,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:09:16" (3/4) ... [2024-11-27 20:10:04,469 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:10:04,479 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-27 20:10:04,488 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-27 20:10:04,488 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:10:04,488 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:10:04,489 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:10:04,592 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:10:04,593 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:10:04,593 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:10:04,599 INFO L158 Benchmark]: Toolchain (without parser) took 48786.26ms. Allocated memory was 142.6MB in the beginning and 872.4MB in the end (delta: 729.8MB). Free memory was 104.1MB in the beginning and 536.5MB in the end (delta: -432.4MB). Peak memory consumption was 295.6MB. Max. memory is 16.1GB. [2024-11-27 20:10:04,599 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:10:04,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.90ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 93.1MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:10:04,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.64ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 91.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:10:04,600 INFO L158 Benchmark]: Boogie Preprocessor took 33.92ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:10:04,600 INFO L158 Benchmark]: RCFGBuilder took 394.21ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 79.0MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:10:04,600 INFO L158 Benchmark]: TraceAbstraction took 47934.64ms. Allocated memory was 142.6MB in the beginning and 872.4MB in the end (delta: 729.8MB). Free memory was 78.3MB in the beginning and 541.0MB in the end (delta: -462.7MB). Peak memory consumption was 485.5MB. Max. memory is 16.1GB. [2024-11-27 20:10:04,602 INFO L158 Benchmark]: Witness Printer took 128.45ms. Allocated memory is still 872.4MB. Free memory was 541.0MB in the beginning and 536.5MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:10:04,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.90ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 93.1MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.64ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 91.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.92ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 394.21ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 79.0MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 47934.64ms. Allocated memory was 142.6MB in the beginning and 872.4MB in the end (delta: 729.8MB). Free memory was 78.3MB in the beginning and 541.0MB in the end (delta: -462.7MB). Peak memory consumption was 485.5MB. Max. memory is 16.1GB. * Witness Printer took 128.45ms. Allocated memory is still 872.4MB. Free memory was 541.0MB in the beginning and 536.5MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 20.4s, OverallIterations: 25, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2531 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2403 mSDsluCounter, 4414 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3528 mSDsCounter, 346 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2923 IncrementalHoareTripleChecker+Invalid, 3269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 346 mSolverCounterUnsat, 886 mSDtfsCounter, 2923 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1446 GetRequests, 1105 SyntacticMatches, 15 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3010 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred in iteration=19, InterpolantAutomatonStates: 263, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 25 MinimizatonAttempts, 1379 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 1662 NumberOfCodeBlocks, 1214 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 2181 ConstructedInterpolants, 0 QuantifiedInterpolants, 5191 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1000 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 48 InterpolantComputations, 15 PerfectInterpolantSequences, 2441/2815 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((0 <= (k + 2147483648)) && (i == 0)) && (1 <= j)) && (1 <= n)) && (k <= 2147483646)) || (((((i <= 999998) && (0 <= (j + 2147483648))) && (0 <= (k + 2147483648))) && (1 <= i)) && (k <= 2147483646))) && (n <= 999999)) && (j <= 2147483646)) || ((((((0 <= (k + 2147483648)) && (i == 0)) && (n <= 999999)) && (1 <= n)) && (k <= 2147483646)) && (j == 0))) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((((((0 <= (k + 2147483648)) && (i == 0)) && (n <= 999999)) && (k <= 2147483646)) || ((((0 <= (k + 2147483648)) && (1 <= i)) && (n <= 999999)) && (k <= 2147483646))) || ((i == 1) && (n <= 1))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((0 <= k) && (i == 0)) && (n <= 999999)) && (1 <= n)) && (k <= 2147483646)) && (j == 0)) || ((((((i == 0) && (1 <= j)) && (n <= 999999)) && (((long long) j + 1) <= n)) && (k <= 2147483646)) && (1 <= k))) || ((((((i <= 999998) && (0 <= (j + 2147483648))) && (1 <= i)) && (n <= 999999)) && (((long long) j + 1) <= n)) && (k <= 2147483646))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:10:04,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d53e15eb-7c92-45d7-a79e-07cc25ff6846/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE