./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1 --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 64bit --witnessprinter.graph.data.programhash b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:27:00,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:27:00,101 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 10:27:00,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:27:00,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:27:00,124 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:27:00,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:27:00,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:27:00,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:27:00,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:27:00,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:27:00,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:27:00,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:27:00,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:27:00,126 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:27:00,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:27:00,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:27:00,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:27:00,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:27:00,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:27:00,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:27:00,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:27:00,127 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 10:27:00,127 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:27:00,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:27:00,127 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:27:00,127 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:27:00,127 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:27:00,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:27:00,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:27:00,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:27:00,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:27:00,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:27:00,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:27:00,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:27:00,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:27:00,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:27:00,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:27:00,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:27:00,129 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:27:00,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:27:00,129 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:27:00,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:27:00,129 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:27:00,129 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:27:00,129 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:27:00,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:27:00,129 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_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0de00a094cfc3c067192c4a42cb6740c5eeeb1cc4308b3b5e47b47532a575 [2024-12-02 10:27:00,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:27:00,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:27:00,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:27:00,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:27:00,338 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:27:00,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2024-12-02 10:27:02,922 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/data/69d2cd11d/4d28a459a64b4597879683a9e2995bfa/FLAG56c4c7095 [2024-12-02 10:27:03,139 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:27:03,139 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2024-12-02 10:27:03,146 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/data/69d2cd11d/4d28a459a64b4597879683a9e2995bfa/FLAG56c4c7095 [2024-12-02 10:27:03,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/data/69d2cd11d/4d28a459a64b4597879683a9e2995bfa [2024-12-02 10:27:03,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:27:03,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:27:03,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:27:03,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:27:03,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:27:03,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265d920c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03, skipping insertion in model container [2024-12-02 10:27:03,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:27:03,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:27:03,630 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:27:03,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:27:03,652 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:27:03,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03 WrapperNode [2024-12-02 10:27:03,653 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:27:03,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:27:03,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:27:03,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:27:03,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,674 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-12-02 10:27:03,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:27:03,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:27:03,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:27:03,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:27:03,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,680 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,684 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 10:27:03,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,684 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,685 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:27:03,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:27:03,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:27:03,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:27:03,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (1/1) ... [2024-12-02 10:27:03,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:27:03,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:03,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:27:03,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:27:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:27:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:27:03,793 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:27:03,795 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:27:03,871 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-12-02 10:27:03,872 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:27:03,880 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:27:03,880 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 10:27:03,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:27:03 BoogieIcfgContainer [2024-12-02 10:27:03,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:27:03,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:27:03,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:27:03,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:27:03,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:27:03" (1/3) ... [2024-12-02 10:27:03,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec65db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:27:03, skipping insertion in model container [2024-12-02 10:27:03,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:03" (2/3) ... [2024-12-02 10:27:03,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec65db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:27:03, skipping insertion in model container [2024-12-02 10:27:03,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:27:03" (3/3) ... [2024-12-02 10:27:03,889 INFO L128 eAbstractionObserver]: Analyzing ICFG b.09-no-inv_assume.c [2024-12-02 10:27:03,903 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:27:03,905 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG b.09-no-inv_assume.c that has 1 procedures, 17 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-12-02 10:27:03,950 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:27:03,961 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;@23111f42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:27:03,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-02 10:27:03,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:03,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-02 10:27:03,969 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:03,969 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 10:27:03,970 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:03,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:03,975 INFO L85 PathProgramCache]: Analyzing trace with hash 889510801, now seen corresponding path program 1 times [2024-12-02 10:27:03,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:03,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085214914] [2024-12-02 10:27:03,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:03,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:04,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085214914] [2024-12-02 10:27:04,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085214914] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:04,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:04,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:27:04,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247323863] [2024-12-02 10:27:04,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:04,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:04,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:04,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:04,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:04,124 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:04,144 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2024-12-02 10:27:04,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:04,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-12-02 10:27:04,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:04,151 INFO L225 Difference]: With dead ends: 21 [2024-12-02 10:27:04,151 INFO L226 Difference]: Without dead ends: 12 [2024-12-02 10:27:04,154 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 [2024-12-02 10:27:04,156 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:04,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:04,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-12-02 10:27:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-12-02 10:27:04,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-12-02 10:27:04,180 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2024-12-02 10:27:04,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:04,180 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-12-02 10:27:04,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,180 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-12-02 10:27:04,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-02 10:27:04,180 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:04,180 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 10:27:04,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:27:04,181 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:04,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:04,181 INFO L85 PathProgramCache]: Analyzing trace with hash 889510858, now seen corresponding path program 1 times [2024-12-02 10:27:04,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:04,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395074700] [2024-12-02 10:27:04,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:04,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:04,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395074700] [2024-12-02 10:27:04,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395074700] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:04,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:04,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:27:04,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070425470] [2024-12-02 10:27:04,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:04,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:04,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:04,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:04,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:04,209 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:04,233 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2024-12-02 10:27:04,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:04,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-12-02 10:27:04,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:04,235 INFO L225 Difference]: With dead ends: 17 [2024-12-02 10:27:04,235 INFO L226 Difference]: Without dead ends: 16 [2024-12-02 10:27:04,235 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 [2024-12-02 10:27:04,236 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:04,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 11 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:04,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-12-02 10:27:04,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-12-02 10:27:04,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-12-02 10:27:04,240 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2024-12-02 10:27:04,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:04,240 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-12-02 10:27:04,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,240 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-02 10:27:04,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 10:27:04,241 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:04,241 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:04,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:27:04,241 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:04,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:04,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1805031113, now seen corresponding path program 1 times [2024-12-02 10:27:04,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:04,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251220975] [2024-12-02 10:27:04,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:04,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:04,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251220975] [2024-12-02 10:27:04,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251220975] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:04,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:04,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:27:04,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423568168] [2024-12-02 10:27:04,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:04,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:04,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:04,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:04,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:04,282 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. 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) [2024-12-02 10:27:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:04,293 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-12-02 10:27:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:04,294 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 [2024-12-02 10:27:04,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:04,294 INFO L225 Difference]: With dead ends: 20 [2024-12-02 10:27:04,294 INFO L226 Difference]: Without dead ends: 19 [2024-12-02 10:27:04,295 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 [2024-12-02 10:27:04,295 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:04,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:04,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-12-02 10:27:04,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-12-02 10:27:04,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2024-12-02 10:27:04,299 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 7 [2024-12-02 10:27:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:04,299 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-12-02 10:27:04,300 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) [2024-12-02 10:27:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-12-02 10:27:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 10:27:04,300 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:04,300 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:04,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:27:04,300 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:04,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:04,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1805032875, now seen corresponding path program 1 times [2024-12-02 10:27:04,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:04,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550895712] [2024-12-02 10:27:04,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:04,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:04,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550895712] [2024-12-02 10:27:04,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550895712] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:04,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:04,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:27:04,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498996742] [2024-12-02 10:27:04,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:04,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:04,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:04,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:04,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:04,333 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. 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) [2024-12-02 10:27:04,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:04,351 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2024-12-02 10:27:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:04,352 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 [2024-12-02 10:27:04,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:04,352 INFO L225 Difference]: With dead ends: 18 [2024-12-02 10:27:04,352 INFO L226 Difference]: Without dead ends: 17 [2024-12-02 10:27:04,352 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 [2024-12-02 10:27:04,353 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:04,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:04,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-12-02 10:27:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-12-02 10:27:04,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-12-02 10:27:04,357 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 7 [2024-12-02 10:27:04,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:04,357 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-12-02 10:27:04,358 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) [2024-12-02 10:27:04,358 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-12-02 10:27:04,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-02 10:27:04,358 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:04,358 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:04,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:27:04,358 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:04,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:04,359 INFO L85 PathProgramCache]: Analyzing trace with hash 691382434, now seen corresponding path program 1 times [2024-12-02 10:27:04,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:04,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098813655] [2024-12-02 10:27:04,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:04,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:04,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098813655] [2024-12-02 10:27:04,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098813655] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:04,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618189014] [2024-12-02 10:27:04,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:04,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:04,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:04,418 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:04,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:27:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:27:04,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,494 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618189014] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:04,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:04,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-12-02 10:27:04,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264704755] [2024-12-02 10:27:04,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:04,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:27:04,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:04,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:27:04,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:27:04,534 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:04,584 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2024-12-02 10:27:04,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:27:04,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-12-02 10:27:04,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:04,585 INFO L225 Difference]: With dead ends: 33 [2024-12-02 10:27:04,585 INFO L226 Difference]: Without dead ends: 32 [2024-12-02 10:27:04,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:04,587 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 48 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:04,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 15 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:04,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-12-02 10:27:04,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-12-02 10:27:04,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2024-12-02 10:27:04,593 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 10 [2024-12-02 10:27:04,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:04,593 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-12-02 10:27:04,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,593 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-12-02 10:27:04,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 10:27:04,593 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:04,593 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 10:27:04,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:27:04,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:04,794 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:04,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:04,795 INFO L85 PathProgramCache]: Analyzing trace with hash -41982735, now seen corresponding path program 1 times [2024-12-02 10:27:04,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:04,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042989675] [2024-12-02 10:27:04,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:04,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042989675] [2024-12-02 10:27:04,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042989675] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:04,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:04,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:27:04,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131496803] [2024-12-02 10:27:04,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:04,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:04,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:04,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:04,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:04,832 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2024-12-02 10:27:04,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:04,852 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-12-02 10:27:04,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:04,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 [2024-12-02 10:27:04,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:04,853 INFO L225 Difference]: With dead ends: 47 [2024-12-02 10:27:04,853 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 10:27:04,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:04,854 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:04,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 10:27:04,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-12-02 10:27:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:04,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2024-12-02 10:27:04,859 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 11 [2024-12-02 10:27:04,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:04,860 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2024-12-02 10:27:04,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2024-12-02 10:27:04,860 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2024-12-02 10:27:04,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 10:27:04,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:04,860 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:04,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:27:04,861 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:04,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1689007595, now seen corresponding path program 1 times [2024-12-02 10:27:04,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:04,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057291620] [2024-12-02 10:27:04,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:04,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:04,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057291620] [2024-12-02 10:27:04,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057291620] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:04,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268529731] [2024-12-02 10:27:04,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:04,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:04,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:04,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:04,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:27:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:04,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:27:04,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:04,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:04,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268529731] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:04,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:04,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-12-02 10:27:04,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387125895] [2024-12-02 10:27:04,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:04,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:27:04,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:04,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:27:04,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:27:04,997 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:05,019 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2024-12-02 10:27:05,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:27:05,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-12-02 10:27:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:05,020 INFO L225 Difference]: With dead ends: 49 [2024-12-02 10:27:05,020 INFO L226 Difference]: Without dead ends: 48 [2024-12-02 10:27:05,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:27:05,021 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:05,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:05,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-12-02 10:27:05,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2024-12-02 10:27:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2024-12-02 10:27:05,028 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 13 [2024-12-02 10:27:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:05,028 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2024-12-02 10:27:05,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2024-12-02 10:27:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-02 10:27:05,029 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:05,029 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2024-12-02 10:27:05,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:27:05,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 10:27:05,229 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:05,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash 603429682, now seen corresponding path program 1 times [2024-12-02 10:27:05,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:05,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806283231] [2024-12-02 10:27:05,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:05,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:05,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:05,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:05,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806283231] [2024-12-02 10:27:05,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806283231] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:05,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028438182] [2024-12-02 10:27:05,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:05,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:05,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:05,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:05,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:27:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:05,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 10:27:05,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:05,354 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:05,354 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:05,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:05,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028438182] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:05,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:05,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 10:27:05,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160762653] [2024-12-02 10:27:05,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:05,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:27:05,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:05,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:27:05,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:05,414 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:05,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:05,438 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2024-12-02 10:27:05,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:27:05,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-12-02 10:27:05,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:05,439 INFO L225 Difference]: With dead ends: 63 [2024-12-02 10:27:05,439 INFO L226 Difference]: Without dead ends: 62 [2024-12-02 10:27:05,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:27:05,440 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:05,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 25 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:05,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-12-02 10:27:05,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2024-12-02 10:27:05,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 59 states have (on average 1.0847457627118644) internal successors, (64), 60 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:05,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2024-12-02 10:27:05,448 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 18 [2024-12-02 10:27:05,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:05,448 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2024-12-02 10:27:05,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2024-12-02 10:27:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-02 10:27:05,449 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:05,449 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 10:27:05,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:27:05,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 10:27:05,649 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:05,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash -136059894, now seen corresponding path program 1 times [2024-12-02 10:27:05,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:05,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392760635] [2024-12-02 10:27:05,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:05,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:05,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:05,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392760635] [2024-12-02 10:27:05,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392760635] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:05,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118523793] [2024-12-02 10:27:05,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:05,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:05,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:05,712 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:05,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:27:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:05,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:27:05,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:05,776 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:05,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:05,841 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:05,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118523793] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:05,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:05,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-12-02 10:27:05,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294405223] [2024-12-02 10:27:05,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:05,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:27:05,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:05,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:27:05,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:27:05,843 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:05,865 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2024-12-02 10:27:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:27:05,866 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 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 22 [2024-12-02 10:27:05,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:05,866 INFO L225 Difference]: With dead ends: 61 [2024-12-02 10:27:05,866 INFO L226 Difference]: Without dead ends: 60 [2024-12-02 10:27:05,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:27:05,867 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:05,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:05,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-12-02 10:27:05,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 34. [2024-12-02 10:27:05,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2024-12-02 10:27:05,873 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 22 [2024-12-02 10:27:05,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:05,873 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2024-12-02 10:27:05,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2024-12-02 10:27:05,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 10:27:05,874 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:05,874 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-12-02 10:27:05,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:27:06,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 10:27:06,074 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:06,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash -613257735, now seen corresponding path program 2 times [2024-12-02 10:27:06,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:06,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460339189] [2024-12-02 10:27:06,075 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:27:06,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:06,086 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:27:06,086 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:06,150 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:06,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:06,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460339189] [2024-12-02 10:27:06,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460339189] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:06,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027768338] [2024-12-02 10:27:06,150 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:27:06,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:06,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:06,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:06,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:27:06,181 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:27:06,181 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:06,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:27:06,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:06,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:06,318 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:06,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027768338] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:06,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:06,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-12-02 10:27:06,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526307762] [2024-12-02 10:27:06,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:06,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:27:06,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:06,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:27:06,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:27:06,320 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:06,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:06,366 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2024-12-02 10:27:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:27:06,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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 31 [2024-12-02 10:27:06,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:06,367 INFO L225 Difference]: With dead ends: 71 [2024-12-02 10:27:06,367 INFO L226 Difference]: Without dead ends: 70 [2024-12-02 10:27:06,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:27:06,368 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:06,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 52 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:27:06,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-12-02 10:27:06,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-12-02 10:27:06,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 69 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:06,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2024-12-02 10:27:06,375 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 31 [2024-12-02 10:27:06,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:06,375 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2024-12-02 10:27:06,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:06,375 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2024-12-02 10:27:06,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 10:27:06,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:06,377 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-12-02 10:27:06,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:27:06,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 10:27:06,577 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:06,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:06,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1638997311, now seen corresponding path program 3 times [2024-12-02 10:27:06,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:06,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458895114] [2024-12-02 10:27:06,578 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:27:06,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:06,603 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-02 10:27:06,603 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:06,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:06,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458895114] [2024-12-02 10:27:06,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458895114] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:06,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067362595] [2024-12-02 10:27:06,805 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:27:06,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:06,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:06,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:06,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:27:06,853 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-12-02 10:27:06,853 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:06,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 10:27:06,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:06,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:07,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067362595] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:07,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:07,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-12-02 10:27:07,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035051261] [2024-12-02 10:27:07,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:07,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 10:27:07,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:07,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 10:27:07,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:27:07,239 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:07,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:07,315 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2024-12-02 10:27:07,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 10:27:07,316 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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 67 [2024-12-02 10:27:07,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:07,317 INFO L225 Difference]: With dead ends: 143 [2024-12-02 10:27:07,317 INFO L226 Difference]: Without dead ends: 142 [2024-12-02 10:27:07,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:27:07,318 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:07,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 102 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:27:07,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-12-02 10:27:07,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-12-02 10:27:07,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.0141843971631206) internal successors, (143), 141 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:07,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 143 transitions. [2024-12-02 10:27:07,328 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 143 transitions. Word has length 67 [2024-12-02 10:27:07,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:07,328 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 143 transitions. [2024-12-02 10:27:07,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:07,329 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 143 transitions. [2024-12-02 10:27:07,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 10:27:07,331 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:07,331 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2024-12-02 10:27:07,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:27:07,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:07,532 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:07,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1225555887, now seen corresponding path program 4 times [2024-12-02 10:27:07,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:07,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404919572] [2024-12-02 10:27:07,533 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 10:27:07,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:07,556 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 10:27:07,557 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:08,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:08,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404919572] [2024-12-02 10:27:08,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404919572] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:08,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615996824] [2024-12-02 10:27:08,079 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 10:27:08,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:08,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:08,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:08,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:27:08,144 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 10:27:08,144 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:08,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:27:08,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:08,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:08,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:09,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:09,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615996824] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:09,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:09,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-12-02 10:27:09,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185349332] [2024-12-02 10:27:09,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:09,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-12-02 10:27:09,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:09,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-12-02 10:27:09,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 10:27:09,191 INFO L87 Difference]: Start difference. First operand 142 states and 143 transitions. Second operand has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:09,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:09,369 INFO L93 Difference]: Finished difference Result 287 states and 311 transitions. [2024-12-02 10:27:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 10:27:09,369 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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 139 [2024-12-02 10:27:09,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:09,371 INFO L225 Difference]: With dead ends: 287 [2024-12-02 10:27:09,371 INFO L226 Difference]: Without dead ends: 286 [2024-12-02 10:27:09,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 10:27:09,373 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:09,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 200 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:27:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-12-02 10:27:09,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-12-02 10:27:09,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.0070175438596491) internal successors, (287), 285 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:09,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 287 transitions. [2024-12-02 10:27:09,394 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 287 transitions. Word has length 139 [2024-12-02 10:27:09,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:09,394 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 287 transitions. [2024-12-02 10:27:09,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:09,395 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 287 transitions. [2024-12-02 10:27:09,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-12-02 10:27:09,400 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:09,400 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2024-12-02 10:27:09,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:27:09,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:09,601 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:09,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash -756839567, now seen corresponding path program 5 times [2024-12-02 10:27:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301817936] [2024-12-02 10:27:09,601 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 10:27:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:09,846 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-12-02 10:27:09,846 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:11,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 6394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:11,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:11,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301817936] [2024-12-02 10:27:11,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301817936] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:11,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746844444] [2024-12-02 10:27:11,922 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 10:27:11,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:11,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:11,924 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:11,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:27:12,074 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-12-02 10:27:12,075 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:12,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 10:27:12,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:12,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 6394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:12,400 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:14,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 6394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:14,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746844444] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:14,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:14,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-12-02 10:27:14,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842232455] [2024-12-02 10:27:14,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:14,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-12-02 10:27:14,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:14,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-12-02 10:27:14,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-12-02 10:27:14,834 INFO L87 Difference]: Start difference. First operand 286 states and 287 transitions. Second operand has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:15,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:15,183 INFO L93 Difference]: Finished difference Result 575 states and 623 transitions. [2024-12-02 10:27:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-12-02 10:27:15,183 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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 283 [2024-12-02 10:27:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:15,185 INFO L225 Difference]: With dead ends: 575 [2024-12-02 10:27:15,185 INFO L226 Difference]: Without dead ends: 574 [2024-12-02 10:27:15,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-12-02 10:27:15,187 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:15,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 390 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:27:15,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-12-02 10:27:15,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2024-12-02 10:27:15,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 573 states have (on average 1.0034904013961605) internal successors, (575), 573 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 575 transitions. [2024-12-02 10:27:15,201 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 575 transitions. Word has length 283 [2024-12-02 10:27:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:15,201 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 575 transitions. [2024-12-02 10:27:15,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 575 transitions. [2024-12-02 10:27:15,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2024-12-02 10:27:15,208 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:15,208 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2024-12-02 10:27:15,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:27:15,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 10:27:15,409 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:15,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:15,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1696522673, now seen corresponding path program 6 times [2024-12-02 10:27:15,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:15,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160594977] [2024-12-02 10:27:15,410 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 10:27:15,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:15,625 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-12-02 10:27:15,625 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 26602 backedges. 0 proven. 26602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:21,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:21,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160594977] [2024-12-02 10:27:21,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160594977] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:21,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554659508] [2024-12-02 10:27:21,396 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 10:27:21,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:21,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:21,397 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:21,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:27:21,734 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-12-02 10:27:21,734 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:27:21,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-12-02 10:27:21,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 26602 backedges. 0 proven. 26602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:22,234 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:27:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 26602 backedges. 0 proven. 26602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:31,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554659508] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:27:31,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:27:31,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-12-02 10:27:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958831579] [2024-12-02 10:27:31,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:27:31,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-12-02 10:27:31,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:31,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-12-02 10:27:31,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-12-02 10:27:31,017 INFO L87 Difference]: Start difference. First operand 574 states and 575 transitions. Second operand has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:32,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:27:32,579 INFO L93 Difference]: Finished difference Result 1151 states and 1247 transitions. [2024-12-02 10:27:32,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-12-02 10:27:32,579 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 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 571 [2024-12-02 10:27:32,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:27:32,582 INFO L225 Difference]: With dead ends: 1151 [2024-12-02 10:27:32,582 INFO L226 Difference]: Without dead ends: 1150 [2024-12-02 10:27:32,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-12-02 10:27:32,584 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:27:32,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 778 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:27:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-12-02 10:27:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1150. [2024-12-02 10:27:32,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 1.001740644038294) internal successors, (1151), 1149 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:32,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1151 transitions. [2024-12-02 10:27:32,606 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1151 transitions. Word has length 571 [2024-12-02 10:27:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:27:32,607 INFO L471 AbstractCegarLoop]: Abstraction has 1150 states and 1151 transitions. [2024-12-02 10:27:32,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1151 transitions. [2024-12-02 10:27:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2024-12-02 10:27:32,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:27:32,633 INFO L218 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 1, 1, 1, 1, 1] [2024-12-02 10:27:32,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 10:27:32,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 10:27:32,834 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:27:32,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:32,834 INFO L85 PathProgramCache]: Analyzing trace with hash -251490767, now seen corresponding path program 7 times [2024-12-02 10:27:32,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:32,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933408075] [2024-12-02 10:27:32,835 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 10:27:32,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 108490 backedges. 0 proven. 108490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:58,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:58,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933408075] [2024-12-02 10:27:58,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933408075] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:27:58,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001584505] [2024-12-02 10:27:58,717 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 10:27:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:27:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:58,719 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:27:58,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 10:27:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:59,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-12-02 10:27:59,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:27:59,968 INFO L134 CoverageAnalysis]: Checked inductivity of 108490 backedges. 0 proven. 108490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:59,968 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:28:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 108490 backedges. 0 proven. 108490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:28:35,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001584505] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:28:35,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:28:35,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2024-12-02 10:28:35,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380071671] [2024-12-02 10:28:35,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:28:35,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-12-02 10:28:35,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:28:35,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-12-02 10:28:35,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2024-12-02 10:28:35,129 INFO L87 Difference]: Start difference. First operand 1150 states and 1151 transitions. Second operand has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:28:43,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:28:43,104 INFO L93 Difference]: Finished difference Result 2303 states and 2495 transitions. [2024-12-02 10:28:43,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2024-12-02 10:28:43,105 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 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 1147 [2024-12-02 10:28:43,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:28:43,110 INFO L225 Difference]: With dead ends: 2303 [2024-12-02 10:28:43,110 INFO L226 Difference]: Without dead ends: 2302 [2024-12-02 10:28:43,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2484 GetRequests, 2102 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.3s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2024-12-02 10:28:43,116 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:28:43,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1547 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:28:43,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2024-12-02 10:28:43,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2024-12-02 10:28:43,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2301 states have (on average 1.0008691873098652) internal successors, (2303), 2301 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:28:43,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 2303 transitions. [2024-12-02 10:28:43,181 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 2303 transitions. Word has length 1147 [2024-12-02 10:28:43,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:28:43,183 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 2303 transitions. [2024-12-02 10:28:43,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:28:43,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 2303 transitions. [2024-12-02 10:28:43,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2300 [2024-12-02 10:28:43,217 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:28:43,217 INFO L218 NwaCegarLoop]: trace histogram [383, 383, 382, 382, 382, 382, 1, 1, 1, 1, 1] [2024-12-02 10:28:43,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-12-02 10:28:43,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 10:28:43,418 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:28:43,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:28:43,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1770133711, now seen corresponding path program 8 times [2024-12-02 10:28:43,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:28:43,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579210202] [2024-12-02 10:28:43,419 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:28:43,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:28:44,116 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:28:44,117 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:31:13,543 INFO L134 CoverageAnalysis]: Checked inductivity of 438154 backedges. 0 proven. 438154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:31:13,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:31:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579210202] [2024-12-02 10:31:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579210202] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:31:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819909380] [2024-12-02 10:31:13,544 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:31:13,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:31:13,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:31:13,545 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:31:13,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 10:31:13,991 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:31:13,991 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:31:14,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 3837 conjuncts, 384 conjuncts are in the unsatisfiable core [2024-12-02 10:31:14,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:31:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 438154 backedges. 0 proven. 438154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:31:15,827 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:33:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 438154 backedges. 0 proven. 438154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:33:37,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819909380] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:33:37,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:33:37,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2024-12-02 10:33:37,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773072057] [2024-12-02 10:33:37,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:33:37,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2024-12-02 10:33:37,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:33:37,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2024-12-02 10:33:37,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2024-12-02 10:33:37,479 INFO L87 Difference]: Start difference. First operand 2302 states and 2303 transitions. Second operand has 768 states, 767 states have (on average 5.99348109517601) internal successors, (4597), 768 states have internal predecessors, (4597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:34:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:34:43,909 INFO L93 Difference]: Finished difference Result 4607 states and 4991 transitions. [2024-12-02 10:34:43,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2024-12-02 10:34:43,911 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 767 states have (on average 5.99348109517601) internal successors, (4597), 768 states have internal predecessors, (4597), 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 2299 [2024-12-02 10:34:43,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:34:43,926 INFO L225 Difference]: With dead ends: 4607 [2024-12-02 10:34:43,926 INFO L226 Difference]: Without dead ends: 4606 [2024-12-02 10:34:43,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4980 GetRequests, 4214 SyntacticMatches, 0 SemanticMatches, 766 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 183.2s TimeCoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2024-12-02 10:34:43,949 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:34:43,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3080 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 10:34:43,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4606 states. [2024-12-02 10:34:44,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4606 to 4606. [2024-12-02 10:34:44,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4606 states, 4605 states have (on average 1.0004343105320304) internal successors, (4607), 4605 states have internal predecessors, (4607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:34:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4606 states to 4606 states and 4607 transitions. [2024-12-02 10:34:44,080 INFO L78 Accepts]: Start accepts. Automaton has 4606 states and 4607 transitions. Word has length 2299 [2024-12-02 10:34:44,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:34:44,081 INFO L471 AbstractCegarLoop]: Abstraction has 4606 states and 4607 transitions. [2024-12-02 10:34:44,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 767 states have (on average 5.99348109517601) internal successors, (4597), 768 states have internal predecessors, (4597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:34:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4606 states and 4607 transitions. [2024-12-02 10:34:44,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4604 [2024-12-02 10:34:44,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:34:44,217 INFO L218 NwaCegarLoop]: trace histogram [767, 767, 766, 766, 766, 766, 1, 1, 1, 1, 1] [2024-12-02 10:34:44,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-12-02 10:34:44,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2935bc51-e328-47f2-9810-a4c90e506c31/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 10:34:44,417 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 10:34:44,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:34:44,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1740334799, now seen corresponding path program 9 times [2024-12-02 10:34:44,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:34:44,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323002461] [2024-12-02 10:34:44,419 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:34:44,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:15,954 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 767 check-sat command(s) [2024-12-02 10:35:15,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat