./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.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_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/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_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/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_1b27742e-f809-48fb-8453-92a2330ee3a9/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 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:12:22,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:12:22,583 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 06:12:22,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:12:22,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:12:22,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:12:22,608 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:12:22,608 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:12:22,609 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:12:22,609 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:12:22,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:12:22,609 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:12:22,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:12:22,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:12:22,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:12:22,610 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:12:22,611 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:12:22,611 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:12:22,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:12:22,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:12:22,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:12:22,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:12:22,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:12:22,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:12:22,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:12:22,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:12:22,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:12:22,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:12:22,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:12:22,612 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:12:22,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:12:22,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:12:22,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:12:22,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:12:22,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:12:22,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:12:22,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:12:22,612 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_1b27742e-f809-48fb-8453-92a2330ee3a9/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 -> 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 [2024-12-02 06:12:22,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:12:22,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:12:22,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:12:22,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:12:22,849 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:12:22,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-12-02 06:12:25,485 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/data/35bdaed29/738fe5c0292f40bdab68a84b7598f7e9/FLAGb5ea726be [2024-12-02 06:12:25,678 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:12:25,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-12-02 06:12:25,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/data/35bdaed29/738fe5c0292f40bdab68a84b7598f7e9/FLAGb5ea726be [2024-12-02 06:12:25,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/data/35bdaed29/738fe5c0292f40bdab68a84b7598f7e9 [2024-12-02 06:12:25,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:12:25,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:12:25,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:12:25,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:12:25,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:12:25,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e14f965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25, skipping insertion in model container [2024-12-02 06:12:25,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:12:25,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:12:25,852 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:12:25,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:12:25,871 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:12:25,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25 WrapperNode [2024-12-02 06:12:25,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:12:25,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:12:25,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:12:25,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:12:25,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,898 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2024-12-02 06:12:25,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:12:25,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:12:25,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:12:25,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:12:25,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,912 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 06:12:25,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,914 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:12:25,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:12:25,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:12:25,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:12:25,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (1/1) ... [2024-12-02 06:12:25,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:12:25,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:25,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:12:25,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:12:25,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:12:25,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:12:26,047 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:12:26,050 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:12:26,131 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-02 06:12:26,131 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:12:26,140 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:12:26,140 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:12:26,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:12:26 BoogieIcfgContainer [2024-12-02 06:12:26,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:12:26,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:12:26,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:12:26,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:12:26,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:12:25" (1/3) ... [2024-12-02 06:12:26,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3aa7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:12:26, skipping insertion in model container [2024-12-02 06:12:26,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:25" (2/3) ... [2024-12-02 06:12:26,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3aa7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:12:26, skipping insertion in model container [2024-12-02 06:12:26,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:12:26" (3/3) ... [2024-12-02 06:12:26,150 INFO L128 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-12-02 06:12:26,166 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:12:26,168 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c that has 1 procedures, 18 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-12-02 06:12:26,216 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:12:26,227 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;@901ef5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:12:26,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-02 06:12:26,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 17 states have internal predecessors, (22), 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 06:12:26,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 06:12:26,235 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:26,236 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:12:26,236 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:26,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:26,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029034, now seen corresponding path program 1 times [2024-12-02 06:12:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:26,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061475802] [2024-12-02 06:12:26,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:26,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:26,396 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 06:12:26,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:26,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061475802] [2024-12-02 06:12:26,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061475802] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:26,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:26,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:12:26,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867544470] [2024-12-02 06:12:26,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:26,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:12:26,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:26,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:12:26,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:12:26,417 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 17 states have internal predecessors, (22), 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 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 06:12:26,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:26,469 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2024-12-02 06:12:26,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:12:26,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 06:12:26,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:26,476 INFO L225 Difference]: With dead ends: 34 [2024-12-02 06:12:26,476 INFO L226 Difference]: Without dead ends: 13 [2024-12-02 06:12:26,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:12:26,480 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:26,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 29 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:12:26,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-12-02 06:12:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-12-02 06:12:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:12:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-12-02 06:12:26,502 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2024-12-02 06:12:26,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:26,503 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-12-02 06:12:26,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 06:12:26,503 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-12-02 06:12:26,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 06:12:26,503 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:26,504 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:12:26,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:12:26,504 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:26,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:26,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029103, now seen corresponding path program 1 times [2024-12-02 06:12:26,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:26,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744390072] [2024-12-02 06:12:26,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:26,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:26,559 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 06:12:26,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:26,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744390072] [2024-12-02 06:12:26,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744390072] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:26,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:26,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:12:26,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165626547] [2024-12-02 06:12:26,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:26,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:12:26,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:26,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:12:26,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:12:26,562 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 06:12:26,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:26,603 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2024-12-02 06:12:26,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:12:26,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 06:12:26,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:26,604 INFO L225 Difference]: With dead ends: 23 [2024-12-02 06:12:26,604 INFO L226 Difference]: Without dead ends: 13 [2024-12-02 06:12:26,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:12:26,605 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:26,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 8 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:12:26,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-12-02 06:12:26,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-12-02 06:12:26,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:12:26,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-12-02 06:12:26,608 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2024-12-02 06:12:26,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:26,608 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-12-02 06:12:26,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 06:12:26,609 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-12-02 06:12:26,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-02 06:12:26,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:26,609 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:12:26,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:12:26,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:26,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:26,610 INFO L85 PathProgramCache]: Analyzing trace with hash 121325264, now seen corresponding path program 1 times [2024-12-02 06:12:26,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:26,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290880916] [2024-12-02 06:12:26,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:26,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:26,659 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 06:12:26,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:26,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290880916] [2024-12-02 06:12:26,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290880916] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:12:26,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:12:26,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:12:26,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378522042] [2024-12-02 06:12:26,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:12:26,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:12:26,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:26,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:12:26,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:12:26,661 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 06:12:26,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:26,696 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2024-12-02 06:12:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:12:26,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-12-02 06:12:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:26,697 INFO L225 Difference]: With dead ends: 16 [2024-12-02 06:12:26,697 INFO L226 Difference]: Without dead ends: 15 [2024-12-02 06:12:26,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:12:26,698 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:26,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:12:26,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-12-02 06:12:26,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-12-02 06:12:26,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:12:26,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2024-12-02 06:12:26,702 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 8 [2024-12-02 06:12:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:26,702 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-12-02 06:12:26,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 06:12:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-12-02 06:12:26,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 06:12:26,703 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:26,703 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:12:26,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:12:26,703 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 06:12:26,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:26,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1961472603, now seen corresponding path program 1 times [2024-12-02 06:12:26,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:26,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935171362] [2024-12-02 06:12:26,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:26,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:26,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:12:26,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:26,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935171362] [2024-12-02 06:12:26,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935171362] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:26,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323667856] [2024-12-02 06:12:26,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:26,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:26,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:26,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:26,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:12:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:26,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 06:12:26,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:26,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:12:26,922 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:26,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:12:26,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323667856] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:26,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:26,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 06:12:26,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971500142] [2024-12-02 06:12:26,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:26,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:12:26,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:26,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:12:26,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:12:26,962 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 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 06:12:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:27,020 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2024-12-02 06:12:27,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:12:27,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 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 11 [2024-12-02 06:12:27,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:27,021 INFO L225 Difference]: With dead ends: 35 [2024-12-02 06:12:27,021 INFO L226 Difference]: Without dead ends: 23 [2024-12-02 06:12:27,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:12:27,022 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:27,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:12:27,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-12-02 06:12:27,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-12-02 06:12:27,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 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 06:12:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-12-02 06:12:27,027 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2024-12-02 06:12:27,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:27,028 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-12-02 06:12:27,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 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 06:12:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-12-02 06:12:27,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 06:12:27,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:27,028 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:12:27,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:12:27,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:27,229 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:27,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:27,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1778346251, now seen corresponding path program 1 times [2024-12-02 06:12:27,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:27,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150923042] [2024-12-02 06:12:27,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:27,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:27,327 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:12:27,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:27,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150923042] [2024-12-02 06:12:27,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150923042] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:27,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707911950] [2024-12-02 06:12:27,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:12:27,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:27,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:27,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:27,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:12:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:27,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:12:27,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:27,446 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:12:27,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:27,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:12:27,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707911950] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:27,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:27,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-12-02 06:12:27,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253464258] [2024-12-02 06:12:27,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:27,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 06:12:27,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:27,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 06:12:27,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:12:27,553 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 15 states have internal predecessors, (43), 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 06:12:27,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:27,851 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2024-12-02 06:12:27,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 06:12:27,852 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 15 states have internal predecessors, (43), 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 19 [2024-12-02 06:12:27,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:27,853 INFO L225 Difference]: With dead ends: 72 [2024-12-02 06:12:27,853 INFO L226 Difference]: Without dead ends: 70 [2024-12-02 06:12:27,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2024-12-02 06:12:27,854 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 36 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:27,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 28 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:12:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-12-02 06:12:27,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2024-12-02 06:12:27,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 64 states have internal predecessors, (76), 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 06:12:27,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2024-12-02 06:12:27,865 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 19 [2024-12-02 06:12:27,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:27,866 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2024-12-02 06:12:27,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 15 states have internal predecessors, (43), 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 06:12:27,866 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2024-12-02 06:12:27,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 06:12:27,866 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:27,867 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:12:27,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:12:28,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:28,067 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:28,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:28,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1121409877, now seen corresponding path program 2 times [2024-12-02 06:12:28,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:28,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391520522] [2024-12-02 06:12:28,068 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:12:28,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:28,082 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:12:28,082 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:28,207 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:12:28,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:28,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391520522] [2024-12-02 06:12:28,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391520522] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:28,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129536053] [2024-12-02 06:12:28,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:12:28,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:28,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:28,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:28,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:12:28,243 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:12:28,243 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:28,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:12:28,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 06:12:28,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 06:12:28,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129536053] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:28,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:28,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-12-02 06:12:28,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337645040] [2024-12-02 06:12:28,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:28,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 06:12:28,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:28,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:12:28,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:12:28,495 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 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 06:12:29,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:29,135 INFO L93 Difference]: Finished difference Result 199 states and 258 transitions. [2024-12-02 06:12:29,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 06:12:29,136 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 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 25 [2024-12-02 06:12:29,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:29,138 INFO L225 Difference]: With dead ends: 199 [2024-12-02 06:12:29,138 INFO L226 Difference]: Without dead ends: 197 [2024-12-02 06:12:29,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 06:12:29,140 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 46 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:29,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 41 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:12:29,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-12-02 06:12:29,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 70. [2024-12-02 06:12:29,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 69 states have internal predecessors, (80), 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 06:12:29,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2024-12-02 06:12:29,154 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 25 [2024-12-02 06:12:29,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:29,154 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2024-12-02 06:12:29,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 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 06:12:29,155 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2024-12-02 06:12:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 06:12:29,155 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:29,156 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-12-02 06:12:29,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 06:12:29,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:29,356 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:29,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:29,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1294604093, now seen corresponding path program 3 times [2024-12-02 06:12:29,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:29,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936318705] [2024-12-02 06:12:29,357 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:12:29,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:29,370 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-12-02 06:12:29,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:29,477 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 06:12:29,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:29,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936318705] [2024-12-02 06:12:29,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936318705] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:29,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161124388] [2024-12-02 06:12:29,477 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:12:29,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:29,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:29,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:29,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:12:29,515 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-12-02 06:12:29,515 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:29,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 06:12:29,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:29,619 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 06:12:29,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 06:12:29,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161124388] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:29,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:29,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 06:12:29,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848045475] [2024-12-02 06:12:29,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:29,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 06:12:29,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:29,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 06:12:29,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-12-02 06:12:29,780 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 21 states, 20 states have (on average 4.55) internal successors, (91), 21 states have internal predecessors, (91), 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 06:12:30,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:30,514 INFO L93 Difference]: Finished difference Result 608 states and 731 transitions. [2024-12-02 06:12:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-12-02 06:12:30,515 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.55) internal successors, (91), 21 states have internal predecessors, (91), 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 43 [2024-12-02 06:12:30,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:30,518 INFO L225 Difference]: With dead ends: 608 [2024-12-02 06:12:30,518 INFO L226 Difference]: Without dead ends: 606 [2024-12-02 06:12:30,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=904, Invalid=2636, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 06:12:30,521 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 49 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:30,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 38 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:12:30,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-12-02 06:12:30,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 377. [2024-12-02 06:12:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 375 states have (on average 1.208) internal successors, (453), 376 states have internal predecessors, (453), 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 06:12:30,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 453 transitions. [2024-12-02 06:12:30,567 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 453 transitions. Word has length 43 [2024-12-02 06:12:30,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:30,568 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 453 transitions. [2024-12-02 06:12:30,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.55) internal successors, (91), 21 states have internal predecessors, (91), 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 06:12:30,568 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 453 transitions. [2024-12-02 06:12:30,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 06:12:30,569 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:30,569 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-12-02 06:12:30,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:12:30,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:30,770 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:30,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:30,770 INFO L85 PathProgramCache]: Analyzing trace with hash -368024227, now seen corresponding path program 4 times [2024-12-02 06:12:30,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:30,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562592364] [2024-12-02 06:12:30,771 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 06:12:30,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:30,784 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 06:12:30,784 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 16 proven. 136 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 06:12:31,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:31,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562592364] [2024-12-02 06:12:31,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562592364] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:31,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633816109] [2024-12-02 06:12:31,019 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 06:12:31,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:31,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:31,021 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:31,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:12:31,056 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 06:12:31,056 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:31,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 06:12:31,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 98 proven. 51 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 06:12:31,288 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 71 proven. 78 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 06:12:31,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633816109] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:31,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:31,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 35 [2024-12-02 06:12:31,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646989075] [2024-12-02 06:12:31,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:31,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 06:12:31,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:31,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 06:12:31,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1024, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 06:12:31,518 INFO L87 Difference]: Start difference. First operand 377 states and 453 transitions. Second operand has 35 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 35 states have internal predecessors, (124), 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 06:12:32,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:32,830 INFO L93 Difference]: Finished difference Result 932 states and 1129 transitions. [2024-12-02 06:12:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-12-02 06:12:32,830 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 35 states have internal predecessors, (124), 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 49 [2024-12-02 06:12:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:32,833 INFO L225 Difference]: With dead ends: 932 [2024-12-02 06:12:32,833 INFO L226 Difference]: Without dead ends: 575 [2024-12-02 06:12:32,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1241, Invalid=4921, Unknown=0, NotChecked=0, Total=6162 [2024-12-02 06:12:32,836 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 149 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:32,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 55 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:12:32,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-12-02 06:12:32,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 447. [2024-12-02 06:12:32,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 445 states have (on average 1.1595505617977528) internal successors, (516), 446 states have internal predecessors, (516), 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 06:12:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 516 transitions. [2024-12-02 06:12:32,869 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 516 transitions. Word has length 49 [2024-12-02 06:12:32,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:32,870 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 516 transitions. [2024-12-02 06:12:32,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 35 states have internal predecessors, (124), 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 06:12:32,870 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 516 transitions. [2024-12-02 06:12:32,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 06:12:32,871 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:32,871 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-12-02 06:12:32,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:12:33,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:33,072 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:33,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:33,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1129896987, now seen corresponding path program 5 times [2024-12-02 06:12:33,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:33,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760450246] [2024-12-02 06:12:33,073 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:12:33,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:33,084 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-12-02 06:12:33,084 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:33,144 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 139 proven. 16 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 06:12:33,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:33,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760450246] [2024-12-02 06:12:33,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760450246] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:33,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890400794] [2024-12-02 06:12:33,145 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:12:33,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:33,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:33,147 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:33,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:12:33,181 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-12-02 06:12:33,181 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:33,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:12:33,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:33,223 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 142 proven. 13 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 06:12:33,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:33,293 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 139 proven. 16 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-02 06:12:33,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890400794] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:33,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:33,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-12-02 06:12:33,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629842809] [2024-12-02 06:12:33,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:33,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:12:33,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:33,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:12:33,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:12:33,294 INFO L87 Difference]: Start difference. First operand 447 states and 516 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 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 06:12:33,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:33,503 INFO L93 Difference]: Finished difference Result 813 states and 942 transitions. [2024-12-02 06:12:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 06:12:33,504 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 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 55 [2024-12-02 06:12:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:33,506 INFO L225 Difference]: With dead ends: 813 [2024-12-02 06:12:33,506 INFO L226 Difference]: Without dead ends: 444 [2024-12-02 06:12:33,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-12-02 06:12:33,507 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 19 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:33,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 31 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:12:33,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-12-02 06:12:33,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 436. [2024-12-02 06:12:33,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 434 states have (on average 1.1036866359447004) internal successors, (479), 435 states have internal predecessors, (479), 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 06:12:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 479 transitions. [2024-12-02 06:12:33,560 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 479 transitions. Word has length 55 [2024-12-02 06:12:33,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:33,560 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 479 transitions. [2024-12-02 06:12:33,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 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 06:12:33,561 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 479 transitions. [2024-12-02 06:12:33,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 06:12:33,562 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:33,562 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-12-02 06:12:33,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:12:33,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:33,762 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:33,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:33,763 INFO L85 PathProgramCache]: Analyzing trace with hash -978809871, now seen corresponding path program 6 times [2024-12-02 06:12:33,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:33,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173639853] [2024-12-02 06:12:33,763 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 06:12:33,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:33,776 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-12-02 06:12:33,776 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 06:12:33,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:33,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173639853] [2024-12-02 06:12:33,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173639853] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:33,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240660592] [2024-12-02 06:12:33,907 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 06:12:33,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:33,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:33,909 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:33,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:12:33,947 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-12-02 06:12:33,948 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:33,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 06:12:33,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 06:12:34,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:34,274 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 1 proven. 193 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 06:12:34,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240660592] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:34,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:34,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 25 [2024-12-02 06:12:34,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359589597] [2024-12-02 06:12:34,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:34,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 06:12:34,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:34,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 06:12:34,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:12:34,276 INFO L87 Difference]: Start difference. First operand 436 states and 479 transitions. Second operand has 26 states, 25 states have (on average 4.44) internal successors, (111), 26 states have internal predecessors, (111), 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 06:12:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:35,901 INFO L93 Difference]: Finished difference Result 459 states and 510 transitions. [2024-12-02 06:12:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-12-02 06:12:35,901 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.44) internal successors, (111), 26 states have internal predecessors, (111), 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 55 [2024-12-02 06:12:35,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:35,902 INFO L225 Difference]: With dead ends: 459 [2024-12-02 06:12:35,903 INFO L226 Difference]: Without dead ends: 458 [2024-12-02 06:12:35,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5196 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=3009, Invalid=9873, Unknown=0, NotChecked=0, Total=12882 [2024-12-02 06:12:35,905 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 83 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:35,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 56 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:12:35,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-12-02 06:12:35,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 421. [2024-12-02 06:12:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 419 states have (on average 1.0835322195704058) internal successors, (454), 420 states have internal predecessors, (454), 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 06:12:35,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 454 transitions. [2024-12-02 06:12:35,952 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 454 transitions. Word has length 55 [2024-12-02 06:12:35,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:35,953 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 454 transitions. [2024-12-02 06:12:35,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.44) internal successors, (111), 26 states have internal predecessors, (111), 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 06:12:35,953 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 454 transitions. [2024-12-02 06:12:35,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 06:12:35,954 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:35,955 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1] [2024-12-02 06:12:35,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 06:12:36,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:36,155 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:36,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:36,156 INFO L85 PathProgramCache]: Analyzing trace with hash 248549793, now seen corresponding path program 7 times [2024-12-02 06:12:36,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:36,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458561653] [2024-12-02 06:12:36,156 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 06:12:36,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:36,363 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 553 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 06:12:36,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:36,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458561653] [2024-12-02 06:12:36,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458561653] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:36,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095231632] [2024-12-02 06:12:36,364 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 06:12:36,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:36,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:36,365 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:36,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 06:12:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:12:36,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 06:12:36,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 553 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 06:12:36,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 553 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 06:12:36,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095231632] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:36,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:36,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 32 [2024-12-02 06:12:36,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163763382] [2024-12-02 06:12:36,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:36,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 06:12:36,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:36,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 06:12:36,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=726, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 06:12:36,868 INFO L87 Difference]: Start difference. First operand 421 states and 454 transitions. Second operand has 33 states, 32 states have (on average 5.84375) internal successors, (187), 33 states have internal predecessors, (187), 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 06:12:38,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:38,586 INFO L93 Difference]: Finished difference Result 1216 states and 1426 transitions. [2024-12-02 06:12:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2024-12-02 06:12:38,586 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.84375) internal successors, (187), 33 states have internal predecessors, (187), 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 91 [2024-12-02 06:12:38,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:38,591 INFO L225 Difference]: With dead ends: 1216 [2024-12-02 06:12:38,591 INFO L226 Difference]: Without dead ends: 1214 [2024-12-02 06:12:38,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5686 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=4096, Invalid=11654, Unknown=0, NotChecked=0, Total=15750 [2024-12-02 06:12:38,594 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 79 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:38,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 63 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:12:38,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-12-02 06:12:38,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1144. [2024-12-02 06:12:38,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1142 states have (on average 1.0831873905429072) internal successors, (1237), 1143 states have internal predecessors, (1237), 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 06:12:38,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1237 transitions. [2024-12-02 06:12:38,659 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1237 transitions. Word has length 91 [2024-12-02 06:12:38,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:38,659 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1237 transitions. [2024-12-02 06:12:38,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.84375) internal successors, (187), 33 states have internal predecessors, (187), 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 06:12:38,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1237 transitions. [2024-12-02 06:12:38,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 06:12:38,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:38,660 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 17, 11, 11, 10, 10, 10, 1, 1, 1, 1] [2024-12-02 06:12:38,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 06:12:38,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:38,861 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:38,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:38,861 INFO L85 PathProgramCache]: Analyzing trace with hash -813023767, now seen corresponding path program 8 times [2024-12-02 06:12:38,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:38,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027130698] [2024-12-02 06:12:38,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:12:38,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:38,874 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:12:38,874 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 329 proven. 51 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-12-02 06:12:39,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:39,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027130698] [2024-12-02 06:12:39,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027130698] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:39,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642942000] [2024-12-02 06:12:39,057 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:12:39,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:39,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:39,059 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:39,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 06:12:39,105 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:12:39,105 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:39,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:12:39,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:39,478 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 851 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 06:12:39,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 1 proven. 850 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 06:12:39,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642942000] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:39,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:39,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 41 [2024-12-02 06:12:39,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713936671] [2024-12-02 06:12:39,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:39,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-12-02 06:12:39,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:39,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-12-02 06:12:39,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1441, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 06:12:39,921 INFO L87 Difference]: Start difference. First operand 1144 states and 1237 transitions. Second operand has 42 states, 41 states have (on average 5.341463414634147) internal successors, (219), 42 states have internal predecessors, (219), 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 06:12:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:53,047 INFO L93 Difference]: Finished difference Result 6020 states and 7308 transitions. [2024-12-02 06:12:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2024-12-02 06:12:53,048 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 5.341463414634147) internal successors, (219), 42 states have internal predecessors, (219), 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 109 [2024-12-02 06:12:53,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:53,058 INFO L225 Difference]: With dead ends: 6020 [2024-12-02 06:12:53,058 INFO L226 Difference]: Without dead ends: 5707 [2024-12-02 06:12:53,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 448 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93283 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=25519, Invalid=176531, Unknown=0, NotChecked=0, Total=202050 [2024-12-02 06:12:53,071 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 467 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:53,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 89 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:12:53,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2024-12-02 06:12:53,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 2307. [2024-12-02 06:12:53,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2305 states have (on average 1.113232104121475) internal successors, (2566), 2306 states have internal predecessors, (2566), 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 06:12:53,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 2566 transitions. [2024-12-02 06:12:53,274 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 2566 transitions. Word has length 109 [2024-12-02 06:12:53,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:53,275 INFO L471 AbstractCegarLoop]: Abstraction has 2307 states and 2566 transitions. [2024-12-02 06:12:53,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 5.341463414634147) internal successors, (219), 42 states have internal predecessors, (219), 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 06:12:53,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 2566 transitions. [2024-12-02 06:12:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 06:12:53,277 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:53,277 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 18, 18, 17, 17, 17, 1, 1, 1, 1] [2024-12-02 06:12:53,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 06:12:53,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 06:12:53,478 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:53,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1065223827, now seen corresponding path program 9 times [2024-12-02 06:12:53,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:53,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159668073] [2024-12-02 06:12:53,479 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:12:53,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:53,499 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-12-02 06:12:53,499 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1864 backedges. 840 proven. 190 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked. [2024-12-02 06:12:53,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:53,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159668073] [2024-12-02 06:12:53,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159668073] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:53,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790305144] [2024-12-02 06:12:53,737 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:12:53,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:53,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:53,739 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:53,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 06:12:53,793 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-12-02 06:12:53,793 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:53,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 06:12:53,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:53,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1864 backedges. 840 proven. 190 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked. [2024-12-02 06:12:53,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1864 backedges. 840 proven. 190 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked. [2024-12-02 06:12:54,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790305144] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:54,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:54,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-12-02 06:12:54,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975911472] [2024-12-02 06:12:54,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:54,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 06:12:54,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:54,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 06:12:54,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2024-12-02 06:12:54,371 INFO L87 Difference]: Start difference. First operand 2307 states and 2566 transitions. Second operand has 28 states, 27 states have (on average 3.888888888888889) internal successors, (105), 28 states have internal predecessors, (105), 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 06:12:56,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:12:56,102 INFO L93 Difference]: Finished difference Result 4737 states and 5389 transitions. [2024-12-02 06:12:56,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-12-02 06:12:56,103 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.888888888888889) internal successors, (105), 28 states have internal predecessors, (105), 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 159 [2024-12-02 06:12:56,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:12:56,111 INFO L225 Difference]: With dead ends: 4737 [2024-12-02 06:12:56,111 INFO L226 Difference]: Without dead ends: 4736 [2024-12-02 06:12:56,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1725 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1202, Invalid=4804, Unknown=0, NotChecked=0, Total=6006 [2024-12-02 06:12:56,112 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 90 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:12:56,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 29 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:12:56,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4736 states. [2024-12-02 06:12:56,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4736 to 3160. [2024-12-02 06:12:56,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 3158 states have (on average 1.123495883470551) internal successors, (3548), 3159 states have internal predecessors, (3548), 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 06:12:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 3548 transitions. [2024-12-02 06:12:56,428 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 3548 transitions. Word has length 159 [2024-12-02 06:12:56,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:12:56,429 INFO L471 AbstractCegarLoop]: Abstraction has 3160 states and 3548 transitions. [2024-12-02 06:12:56,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.888888888888889) internal successors, (105), 28 states have internal predecessors, (105), 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 06:12:56,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 3548 transitions. [2024-12-02 06:12:56,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 06:12:56,432 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:12:56,432 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 29, 19, 19, 18, 18, 18, 1, 1, 1, 1] [2024-12-02 06:12:56,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-12-02 06:12:56,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:56,632 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:12:56,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:12:56,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1127110859, now seen corresponding path program 10 times [2024-12-02 06:12:56,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:12:56,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904087346] [2024-12-02 06:12:56,633 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 06:12:56,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:12:56,669 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 06:12:56,669 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:57,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2646 backedges. 1204 proven. 1093 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-12-02 06:12:57,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:12:57,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904087346] [2024-12-02 06:12:57,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904087346] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:12:57,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528331982] [2024-12-02 06:12:57,191 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 06:12:57,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:12:57,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:12:57,193 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:12:57,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 06:12:57,269 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 06:12:57,269 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:12:57,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 06:12:57,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:12:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2646 backedges. 72 proven. 2429 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 06:12:57,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:12:58,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2646 backedges. 10 proven. 2491 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 06:12:58,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528331982] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:12:58,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:12:58,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22, 22] total 60 [2024-12-02 06:12:58,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432709777] [2024-12-02 06:12:58,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:12:58,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-12-02 06:12:58,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:12:58,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-12-02 06:12:58,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=2992, Unknown=0, NotChecked=0, Total=3660 [2024-12-02 06:12:58,550 INFO L87 Difference]: Start difference. First operand 3160 states and 3548 transitions. Second operand has 61 states, 60 states have (on average 6.25) internal successors, (375), 61 states have internal predecessors, (375), 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 06:15:13,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:15:13,715 INFO L93 Difference]: Finished difference Result 17629 states and 20477 transitions. [2024-12-02 06:15:13,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1653 states. [2024-12-02 06:15:13,716 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 6.25) internal successors, (375), 61 states have internal predecessors, (375), 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 185 [2024-12-02 06:15:13,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:15:13,747 INFO L225 Difference]: With dead ends: 17629 [2024-12-02 06:15:13,748 INFO L226 Difference]: Without dead ends: 17627 [2024-12-02 06:15:13,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2018 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 1691 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508125 ImplicationChecksByTransitivity, 130.0s TimeCoverageRelationStatistics Valid=375105, Invalid=2489451, Unknown=0, NotChecked=0, Total=2864556 [2024-12-02 06:15:13,839 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 1278 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 1501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 2863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1501 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:15:13,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 128 Invalid, 2863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1501 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 06:15:13,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17627 states. [2024-12-02 06:15:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17627 to 6809. [2024-12-02 06:15:14,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6809 states, 6807 states have (on average 1.122961657117673) internal successors, (7644), 6808 states have internal predecessors, (7644), 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 06:15:14,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6809 states to 6809 states and 7644 transitions. [2024-12-02 06:15:14,627 INFO L78 Accepts]: Start accepts. Automaton has 6809 states and 7644 transitions. Word has length 185 [2024-12-02 06:15:14,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:15:14,628 INFO L471 AbstractCegarLoop]: Abstraction has 6809 states and 7644 transitions. [2024-12-02 06:15:14,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 6.25) internal successors, (375), 61 states have internal predecessors, (375), 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 06:15:14,628 INFO L276 IsEmpty]: Start isEmpty. Operand 6809 states and 7644 transitions. [2024-12-02 06:15:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-12-02 06:15:14,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:15:14,633 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2024-12-02 06:15:14,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 06:15:14,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 06:15:14,834 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:15:14,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:15:14,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1584590439, now seen corresponding path program 11 times [2024-12-02 06:15:14,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:15:14,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519774042] [2024-12-02 06:15:14,834 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:15:14,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:15:14,890 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2024-12-02 06:15:14,890 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:15:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4683 backedges. 0 proven. 4653 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 06:15:16,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:15:16,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519774042] [2024-12-02 06:15:16,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519774042] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:15:16,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565577000] [2024-12-02 06:15:16,043 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:15:16,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:15:16,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:15:16,045 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:15:16,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 06:15:16,136 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2024-12-02 06:15:16,136 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:15:16,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 06:15:16,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:15:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4683 backedges. 0 proven. 4653 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 06:15:16,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:15:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4683 backedges. 0 proven. 4653 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 06:15:17,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565577000] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:15:17,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:15:17,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 72 [2024-12-02 06:15:17,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145847862] [2024-12-02 06:15:17,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:15:17,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-12-02 06:15:17,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:15:17,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-12-02 06:15:17,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2110, Invalid=3146, Unknown=0, NotChecked=0, Total=5256 [2024-12-02 06:15:17,704 INFO L87 Difference]: Start difference. First operand 6809 states and 7644 transitions. Second operand has 73 states, 72 states have (on average 7.041666666666667) internal successors, (507), 73 states have internal predecessors, (507), 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 06:15:42,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:15:42,386 INFO L93 Difference]: Finished difference Result 139501 states and 158277 transitions. [2024-12-02 06:15:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 339 states. [2024-12-02 06:15:42,387 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 72 states have (on average 7.041666666666667) internal successors, (507), 73 states have internal predecessors, (507), 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 251 [2024-12-02 06:15:42,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:15:42,660 INFO L225 Difference]: With dead ends: 139501 [2024-12-02 06:15:42,660 INFO L226 Difference]: Without dead ends: 139499 [2024-12-02 06:15:42,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 344 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47276 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=31376, Invalid=87994, Unknown=0, NotChecked=0, Total=119370 [2024-12-02 06:15:42,688 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 282 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:15:42,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 116 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:15:42,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139499 states. [2024-12-02 06:15:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139499 to 50122. [2024-12-02 06:15:50,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50122 states, 50120 states have (on average 1.1258379888268157) internal successors, (56427), 50121 states have internal predecessors, (56427), 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 06:15:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50122 states to 50122 states and 56427 transitions. [2024-12-02 06:15:50,692 INFO L78 Accepts]: Start accepts. Automaton has 50122 states and 56427 transitions. Word has length 251 [2024-12-02 06:15:50,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:15:50,692 INFO L471 AbstractCegarLoop]: Abstraction has 50122 states and 56427 transitions. [2024-12-02 06:15:50,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 7.041666666666667) internal successors, (507), 73 states have internal predecessors, (507), 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 06:15:50,693 INFO L276 IsEmpty]: Start isEmpty. Operand 50122 states and 56427 transitions. [2024-12-02 06:15:50,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-12-02 06:15:50,708 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:15:50,708 INFO L218 NwaCegarLoop]: trace histogram [46, 46, 45, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2024-12-02 06:15:50,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 06:15:50,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 06:15:50,909 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:15:50,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:15:50,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1223193533, now seen corresponding path program 12 times [2024-12-02 06:15:50,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:15:50,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217619339] [2024-12-02 06:15:50,909 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 06:15:50,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:15:50,925 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-12-02 06:15:50,925 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:15:51,052 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 1609 proven. 119 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked. [2024-12-02 06:15:51,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:15:51,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217619339] [2024-12-02 06:15:51,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217619339] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:15:51,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658565959] [2024-12-02 06:15:51,052 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 06:15:51,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:15:51,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:15:51,054 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:15:51,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 06:15:51,111 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-12-02 06:15:51,111 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:15:51,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 06:15:51,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:15:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 1609 proven. 119 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked. [2024-12-02 06:15:51,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:15:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 1609 proven. 119 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked. [2024-12-02 06:15:51,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658565959] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:15:51,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:15:51,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2024-12-02 06:15:51,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520556169] [2024-12-02 06:15:51,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:15:51,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 06:15:51,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:15:51,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 06:15:51,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2024-12-02 06:15:51,596 INFO L87 Difference]: Start difference. First operand 50122 states and 56427 transitions. Second operand has 29 states, 28 states have (on average 3.142857142857143) internal successors, (88), 29 states have internal predecessors, (88), 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 06:16:07,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:16:07,330 INFO L93 Difference]: Finished difference Result 118546 states and 133841 transitions. [2024-12-02 06:16:07,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-12-02 06:16:07,330 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.142857142857143) internal successors, (88), 29 states have internal predecessors, (88), 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 293 [2024-12-02 06:16:07,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:16:07,484 INFO L225 Difference]: With dead ends: 118546 [2024-12-02 06:16:07,484 INFO L226 Difference]: Without dead ends: 118545 [2024-12-02 06:16:07,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 866 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=710, Invalid=3072, Unknown=0, NotChecked=0, Total=3782 [2024-12-02 06:16:07,502 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 79 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:16:07,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 31 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:16:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118545 states. [2024-12-02 06:16:15,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118545 to 50306. [2024-12-02 06:16:15,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50306 states, 50304 states have (on average 1.1271270674300256) internal successors, (56699), 50305 states have internal predecessors, (56699), 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 06:16:15,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50306 states to 50306 states and 56699 transitions. [2024-12-02 06:16:15,521 INFO L78 Accepts]: Start accepts. Automaton has 50306 states and 56699 transitions. Word has length 293 [2024-12-02 06:16:15,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:16:15,522 INFO L471 AbstractCegarLoop]: Abstraction has 50306 states and 56699 transitions. [2024-12-02 06:16:15,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.142857142857143) internal successors, (88), 29 states have internal predecessors, (88), 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 06:16:15,522 INFO L276 IsEmpty]: Start isEmpty. Operand 50306 states and 56699 transitions. [2024-12-02 06:16:15,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-12-02 06:16:15,540 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:16:15,541 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 53, 31, 31, 30, 30, 30, 1, 1, 1, 1] [2024-12-02 06:16:15,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 06:16:15,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 06:16:15,741 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:16:15,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:16:15,741 INFO L85 PathProgramCache]: Analyzing trace with hash -508205763, now seen corresponding path program 13 times [2024-12-02 06:16:15,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:16:15,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303792636] [2024-12-02 06:16:15,742 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 06:16:15,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:16:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:16:16,241 INFO L134 CoverageAnalysis]: Checked inductivity of 8148 backedges. 0 proven. 5463 refuted. 0 times theorem prover too weak. 2685 trivial. 0 not checked. [2024-12-02 06:16:16,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:16:16,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303792636] [2024-12-02 06:16:16,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303792636] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:16:16,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220483768] [2024-12-02 06:16:16,242 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 06:16:16,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:16:16,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:16:16,244 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:16:16,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 06:16:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:16:16,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 06:16:16,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:16:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 8148 backedges. 4144 proven. 3418 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2024-12-02 06:16:17,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:16:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 8148 backedges. 4029 proven. 3533 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2024-12-02 06:16:18,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220483768] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:16:18,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:16:18,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 34, 34] total 78 [2024-12-02 06:16:18,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500984853] [2024-12-02 06:16:18,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:16:18,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2024-12-02 06:16:18,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:16:18,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2024-12-02 06:16:18,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=778, Invalid=5228, Unknown=0, NotChecked=0, Total=6006 [2024-12-02 06:16:18,479 INFO L87 Difference]: Start difference. First operand 50306 states and 56699 transitions. Second operand has 78 states, 78 states have (on average 6.384615384615385) internal successors, (498), 78 states have internal predecessors, (498), 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 06:16:39,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:16:39,286 INFO L93 Difference]: Finished difference Result 90744 states and 102978 transitions. [2024-12-02 06:16:39,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 334 states. [2024-12-02 06:16:39,286 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 6.384615384615385) internal successors, (498), 78 states have internal predecessors, (498), 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 317 [2024-12-02 06:16:39,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:16:39,359 INFO L225 Difference]: With dead ends: 90744 [2024-12-02 06:16:39,360 INFO L226 Difference]: Without dead ends: 49553 [2024-12-02 06:16:39,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 983 GetRequests, 569 SyntacticMatches, 11 SemanticMatches, 403 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61106 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=17131, Invalid=146489, Unknown=0, NotChecked=0, Total=163620 [2024-12-02 06:16:39,393 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 521 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 5363 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 5655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 5363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:16:39,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 348 Invalid, 5655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 5363 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 06:16:39,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49553 states. [2024-12-02 06:16:46,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49553 to 44043. [2024-12-02 06:16:46,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44043 states, 44041 states have (on average 1.116595899275675) internal successors, (49176), 44042 states have internal predecessors, (49176), 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 06:16:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44043 states to 44043 states and 49176 transitions. [2024-12-02 06:16:46,647 INFO L78 Accepts]: Start accepts. Automaton has 44043 states and 49176 transitions. Word has length 317 [2024-12-02 06:16:46,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:16:46,648 INFO L471 AbstractCegarLoop]: Abstraction has 44043 states and 49176 transitions. [2024-12-02 06:16:46,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 6.384615384615385) internal successors, (498), 78 states have internal predecessors, (498), 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 06:16:46,648 INFO L276 IsEmpty]: Start isEmpty. Operand 44043 states and 49176 transitions. [2024-12-02 06:16:46,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-12-02 06:16:46,663 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:16:46,663 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 64, 36, 36, 35, 35, 35, 1, 1, 1, 1] [2024-12-02 06:16:46,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 06:16:46,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 06:16:46,864 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:16:46,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:16:46,864 INFO L85 PathProgramCache]: Analyzing trace with hash 460474811, now seen corresponding path program 14 times [2024-12-02 06:16:46,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:16:46,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020500952] [2024-12-02 06:16:46,864 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:16:46,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:16:46,954 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:16:46,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:16:47,572 INFO L134 CoverageAnalysis]: Checked inductivity of 11560 backedges. 0 proven. 6940 refuted. 0 times theorem prover too weak. 4620 trivial. 0 not checked. [2024-12-02 06:16:47,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:16:47,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020500952] [2024-12-02 06:16:47,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020500952] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:16:47,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364497024] [2024-12-02 06:16:47,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:16:47,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:16:47,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:16:47,574 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:16:47,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 06:16:47,671 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:16:47,672 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:16:47,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 06:16:47,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:16:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 11560 backedges. 0 proven. 11393 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-12-02 06:16:48,796 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:16:50,347 INFO L134 CoverageAnalysis]: Checked inductivity of 11560 backedges. 1 proven. 11392 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-12-02 06:16:50,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364497024] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:16:50,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:16:50,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 41, 41] total 89 [2024-12-02 06:16:50,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152043135] [2024-12-02 06:16:50,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:16:50,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2024-12-02 06:16:50,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:16:50,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2024-12-02 06:16:50,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1957, Invalid=6053, Unknown=0, NotChecked=0, Total=8010 [2024-12-02 06:16:50,349 INFO L87 Difference]: Start difference. First operand 44043 states and 49176 transitions. Second operand has 90 states, 89 states have (on average 6.910112359550562) internal successors, (615), 90 states have internal predecessors, (615), 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 06:17:53,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:17:53,892 INFO L93 Difference]: Finished difference Result 81117 states and 95142 transitions. [2024-12-02 06:17:53,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 749 states. [2024-12-02 06:17:53,893 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 89 states have (on average 6.910112359550562) internal successors, (615), 90 states have internal predecessors, (615), 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 375 [2024-12-02 06:17:53,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:17:53,993 INFO L225 Difference]: With dead ends: 81117 [2024-12-02 06:17:53,993 INFO L226 Difference]: Without dead ends: 81116 [2024-12-02 06:17:54,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1444 GetRequests, 685 SyntacticMatches, 0 SemanticMatches, 759 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278268 ImplicationChecksByTransitivity, 48.6s TimeCoverageRelationStatistics Valid=151892, Invalid=426468, Unknown=0, NotChecked=0, Total=578360 [2024-12-02 06:17:54,019 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 213 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 671 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 671 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:17:54,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 198 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [671 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 06:17:54,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81116 states. [2024-12-02 06:18:02,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81116 to 39116. [2024-12-02 06:18:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39116 states, 39114 states have (on average 1.1248657769596564) internal successors, (43998), 39115 states have internal predecessors, (43998), 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 06:18:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39116 states to 39116 states and 43998 transitions. [2024-12-02 06:18:02,248 INFO L78 Accepts]: Start accepts. Automaton has 39116 states and 43998 transitions. Word has length 375 [2024-12-02 06:18:02,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:02,248 INFO L471 AbstractCegarLoop]: Abstraction has 39116 states and 43998 transitions. [2024-12-02 06:18:02,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 89 states have (on average 6.910112359550562) internal successors, (615), 90 states have internal predecessors, (615), 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 06:18:02,248 INFO L276 IsEmpty]: Start isEmpty. Operand 39116 states and 43998 transitions. [2024-12-02 06:18:02,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-12-02 06:18:02,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:02,261 INFO L218 NwaCegarLoop]: trace histogram [65, 65, 64, 48, 48, 47, 47, 47, 1, 1, 1, 1] [2024-12-02 06:18:02,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-12-02 06:18:02,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 06:18:02,461 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:18:02,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:02,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1199795201, now seen corresponding path program 15 times [2024-12-02 06:18:02,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:02,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427242735] [2024-12-02 06:18:02,462 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:18:02,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:02,493 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2024-12-02 06:18:02,493 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:18:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 14794 backedges. 7224 proven. 2752 refuted. 0 times theorem prover too weak. 4818 trivial. 0 not checked. [2024-12-02 06:18:03,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:03,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427242735] [2024-12-02 06:18:03,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427242735] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:18:03,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161251854] [2024-12-02 06:18:03,015 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:18:03,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:18:03,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:18:03,016 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:18:03,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 06:18:03,108 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2024-12-02 06:18:03,108 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:18:03,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 06:18:03,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:18:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 14794 backedges. 7224 proven. 2752 refuted. 0 times theorem prover too weak. 4818 trivial. 0 not checked. [2024-12-02 06:18:03,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:18:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 14794 backedges. 7224 proven. 2752 refuted. 0 times theorem prover too weak. 4818 trivial. 0 not checked. [2024-12-02 06:18:04,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161251854] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:18:04,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:18:04,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 50 [2024-12-02 06:18:04,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799721582] [2024-12-02 06:18:04,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:18:04,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 06:18:04,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:18:04,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 06:18:04,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=738, Invalid=1812, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 06:18:04,466 INFO L87 Difference]: Start difference. First operand 39116 states and 43998 transitions. Second operand has 51 states, 50 states have (on average 5.88) internal successors, (294), 51 states have internal predecessors, (294), 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 06:18:45,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:18:45,886 INFO L93 Difference]: Finished difference Result 144256 states and 162623 transitions. [2024-12-02 06:18:45,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2024-12-02 06:18:45,887 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 5.88) internal successors, (294), 51 states have internal predecessors, (294), 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 435 [2024-12-02 06:18:45,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:18:46,039 INFO L225 Difference]: With dead ends: 144256 [2024-12-02 06:18:46,039 INFO L226 Difference]: Without dead ends: 144255 [2024-12-02 06:18:46,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1084 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21705 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=11798, Invalid=47008, Unknown=0, NotChecked=0, Total=58806 [2024-12-02 06:18:46,060 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 287 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:18:46,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 51 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:18:46,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144255 states. [2024-12-02 06:18:56,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144255 to 42981. [2024-12-02 06:18:56,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42981 states, 42979 states have (on average 1.1266199771981666) internal successors, (48421), 42980 states have internal predecessors, (48421), 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 06:18:56,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42981 states to 42981 states and 48421 transitions. [2024-12-02 06:18:56,501 INFO L78 Accepts]: Start accepts. Automaton has 42981 states and 48421 transitions. Word has length 435 [2024-12-02 06:18:56,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:18:56,502 INFO L471 AbstractCegarLoop]: Abstraction has 42981 states and 48421 transitions. [2024-12-02 06:18:56,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 5.88) internal successors, (294), 51 states have internal predecessors, (294), 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 06:18:56,502 INFO L276 IsEmpty]: Start isEmpty. Operand 42981 states and 48421 transitions. [2024-12-02 06:18:56,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-12-02 06:18:56,520 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:18:56,520 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 63, 63, 63, 62, 62, 62, 1, 1, 1, 1] [2024-12-02 06:18:56,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 06:18:56,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:18:56,721 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:18:56,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:18:56,721 INFO L85 PathProgramCache]: Analyzing trace with hash 459955801, now seen corresponding path program 16 times [2024-12-02 06:18:56,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:18:56,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209566160] [2024-12-02 06:18:56,721 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 06:18:56,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:18:56,781 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 06:18:56,781 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:18:59,394 INFO L134 CoverageAnalysis]: Checked inductivity of 19595 backedges. 0 proven. 19533 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-02 06:18:59,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:18:59,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209566160] [2024-12-02 06:18:59,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209566160] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:18:59,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984309224] [2024-12-02 06:18:59,394 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 06:18:59,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:18:59,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:18:59,396 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:18:59,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 06:18:59,613 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 06:18:59,613 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:18:59,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-12-02 06:18:59,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:19:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 19595 backedges. 0 proven. 19533 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-02 06:19:00,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:19:04,525 INFO L134 CoverageAnalysis]: Checked inductivity of 19595 backedges. 0 proven. 19533 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-02 06:19:04,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984309224] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:19:04,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:19:04,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67, 67] total 136 [2024-12-02 06:19:04,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746734262] [2024-12-02 06:19:04,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:19:04,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2024-12-02 06:19:04,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:19:04,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2024-12-02 06:19:04,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8286, Invalid=10346, Unknown=0, NotChecked=0, Total=18632 [2024-12-02 06:19:04,529 INFO L87 Difference]: Start difference. First operand 42981 states and 48421 transitions. Second operand has 137 states, 136 states have (on average 7.492647058823529) internal successors, (1019), 137 states have internal predecessors, (1019), 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 06:22:02,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:22:02,268 INFO L93 Difference]: Finished difference Result 675388 states and 806468 transitions. [2024-12-02 06:22:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 691 states. [2024-12-02 06:22:02,268 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 136 states have (on average 7.492647058823529) internal successors, (1019), 137 states have internal predecessors, (1019), 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 507 [2024-12-02 06:22:02,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:22:03,422 INFO L225 Difference]: With dead ends: 675388 [2024-12-02 06:22:03,423 INFO L226 Difference]: Without dead ends: 675386 [2024-12-02 06:22:03,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1640 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 696 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197852 ImplicationChecksByTransitivity, 36.1s TimeCoverageRelationStatistics Valid=128272, Invalid=358234, Unknown=0, NotChecked=0, Total=486506 [2024-12-02 06:22:03,543 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 584 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:22:03,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 235 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 06:22:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675386 states. [2024-12-02 06:23:30,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675386 to 216130. [2024-12-02 06:23:31,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216130 states, 216128 states have (on average 1.1434890435297602) internal successors, (247140), 216129 states have internal predecessors, (247140), 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 06:23:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216130 states to 216130 states and 247140 transitions. [2024-12-02 06:23:31,459 INFO L78 Accepts]: Start accepts. Automaton has 216130 states and 247140 transitions. Word has length 507 [2024-12-02 06:23:31,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:23:31,460 INFO L471 AbstractCegarLoop]: Abstraction has 216130 states and 247140 transitions. [2024-12-02 06:23:31,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 136 states have (on average 7.492647058823529) internal successors, (1019), 137 states have internal predecessors, (1019), 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 06:23:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 216130 states and 247140 transitions. [2024-12-02 06:23:31,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-12-02 06:23:31,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:23:31,494 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 93, 53, 53, 52, 52, 52, 1, 1, 1, 1] [2024-12-02 06:23:31,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-12-02 06:23:31,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:23:31,695 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 06:23:31,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:23:31,695 INFO L85 PathProgramCache]: Analyzing trace with hash -140569163, now seen corresponding path program 17 times [2024-12-02 06:23:31,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:23:31,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315748529] [2024-12-02 06:23:31,695 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:23:31,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:23:31,813 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 82 check-sat command(s) [2024-12-02 06:23:31,813 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:23:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 24735 backedges. 9212 proven. 13467 refuted. 0 times theorem prover too weak. 2056 trivial. 0 not checked. [2024-12-02 06:23:33,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:23:33,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315748529] [2024-12-02 06:23:33,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315748529] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:23:33,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291395142] [2024-12-02 06:23:33,343 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 06:23:33,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:23:33,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:23:33,344 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:23:33,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b27742e-f809-48fb-8453-92a2330ee3a9/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 06:23:33,632 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 82 check-sat command(s) [2024-12-02 06:23:33,632 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:23:33,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-12-02 06:23:33,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:23:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 24735 backedges. 14135 proven. 9773 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2024-12-02 06:23:36,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:23:39,030 INFO L134 CoverageAnalysis]: Checked inductivity of 24735 backedges. 14084 proven. 9824 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2024-12-02 06:23:39,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291395142] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:23:39,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:23:39,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 55, 55] total 136 [2024-12-02 06:23:39,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271732517] [2024-12-02 06:23:39,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:23:39,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 136 states [2024-12-02 06:23:39,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:23:39,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2024-12-02 06:23:39,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2649, Invalid=15711, Unknown=0, NotChecked=0, Total=18360 [2024-12-02 06:23:39,035 INFO L87 Difference]: Start difference. First operand 216130 states and 247140 transitions. Second operand has 136 states, 136 states have (on average 7.014705882352941) internal successors, (954), 136 states have internal predecessors, (954), 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)