./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:09:22,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:09:22,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 07:09:22,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:09:22,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:09:22,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:09:22,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:09:22,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:09:22,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:09:22,579 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:09:22,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:09:22,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:09:22,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:09:22,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:09:22,582 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:09:22,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:09:22,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:09:22,583 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:09:22,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:09:22,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:09:22,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:09:22,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:09:22,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:09:22,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:09:22,587 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 07:09:22,588 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:09:22,588 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:09:22,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:09:22,589 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:09:22,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:09:22,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:09:22,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:09:22,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:09:22,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:09:22,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:09:22,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:09:22,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:09:22,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:09:22,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:09:22,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:09:22,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:09:22,593 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:09:22,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:09:22,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:09:22,593 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 [2023-11-29 07:09:22,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:09:22,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:09:22,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:09:22,843 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:09:22,844 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:09:22,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c [2023-11-29 07:09:25,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:09:25,784 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:09:25,785 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c [2023-11-29 07:09:25,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/data/8f5c73f2e/f1c28779d05a418b87a018059d837f03/FLAGcbd7867ec [2023-11-29 07:09:25,807 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/data/8f5c73f2e/f1c28779d05a418b87a018059d837f03 [2023-11-29 07:09:25,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:09:25,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:09:25,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:09:25,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:09:25,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:09:25,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:25" (1/1) ... [2023-11-29 07:09:25,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680cad8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:25, skipping insertion in model container [2023-11-29 07:09:25,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:25" (1/1) ... [2023-11-29 07:09:25,840 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:09:25,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:09:26,005 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:09:26,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:09:26,031 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:09:26,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26 WrapperNode [2023-11-29 07:09:26,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:09:26,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:09:26,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:09:26,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:09:26,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,058 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2023-11-29 07:09:26,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:09:26,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:09:26,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:09:26,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:09:26,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,069 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,081 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 07:09:26,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:09:26,090 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:09:26,091 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:09:26,091 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:09:26,092 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (1/1) ... [2023-11-29 07:09:26,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:09:26,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:26,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:09:26,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:09:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:09:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:09:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2023-11-29 07:09:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2023-11-29 07:09:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:09:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:09:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure id [2023-11-29 07:09:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2023-11-29 07:09:26,206 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:09:26,208 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:09:26,328 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:09:26,349 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:09:26,349 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 07:09:26,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:26 BoogieIcfgContainer [2023-11-29 07:09:26,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:09:26,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:09:26,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:09:26,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:09:26,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:09:25" (1/3) ... [2023-11-29 07:09:26,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52338602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:26, skipping insertion in model container [2023-11-29 07:09:26,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:26" (2/3) ... [2023-11-29 07:09:26,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52338602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:26, skipping insertion in model container [2023-11-29 07:09:26,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:26" (3/3) ... [2023-11-29 07:09:26,358 INFO L112 eAbstractionObserver]: Analyzing ICFG id2_i5_o5-1.c [2023-11-29 07:09:26,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:09:26,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 07:09:26,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:09:26,423 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@4812263d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:09:26,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 07:09:26,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 20 states have (on average 1.55) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:09:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 07:09:26,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:26,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 07:09:26,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:26,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:26,438 INFO L85 PathProgramCache]: Analyzing trace with hash 80975045, now seen corresponding path program 1 times [2023-11-29 07:09:26,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:26,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95743944] [2023-11-29 07:09:26,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:26,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:26,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:26,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95743944] [2023-11-29 07:09:26,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95743944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:26,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:26,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:09:26,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954669700] [2023-11-29 07:09:26,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:26,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:09:26,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:26,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:09:26,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:09:26,693 INFO L87 Difference]: Start difference. First operand has 34 states, 20 states have (on average 1.55) internal successors, (31), 28 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:26,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:26,785 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2023-11-29 07:09:26,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:09:26,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 07:09:26,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:26,795 INFO L225 Difference]: With dead ends: 54 [2023-11-29 07:09:26,795 INFO L226 Difference]: Without dead ends: 41 [2023-11-29 07:09:26,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:09:26,801 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 22 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:26,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 110 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-29 07:09:26,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2023-11-29 07:09:26,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.5) internal successors, (36), 31 states have internal predecessors, (36), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:09:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2023-11-29 07:09:26,838 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 5 [2023-11-29 07:09:26,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:26,839 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2023-11-29 07:09:26,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:26,839 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-29 07:09:26,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 07:09:26,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:26,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 07:09:26,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 07:09:26,841 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:26,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:26,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1784740830, now seen corresponding path program 1 times [2023-11-29 07:09:26,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:26,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052076599] [2023-11-29 07:09:26,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:26,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:26,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:26,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:26,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052076599] [2023-11-29 07:09:26,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052076599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:26,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:26,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:09:26,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214127260] [2023-11-29 07:09:26,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:26,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:09:26,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:26,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:09:26,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:09:26,940 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:26,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:26,984 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2023-11-29 07:09:26,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:09:26,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 07:09:26,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:26,987 INFO L225 Difference]: With dead ends: 43 [2023-11-29 07:09:26,988 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 07:09:26,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:09:26,990 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:26,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 106 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:26,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 07:09:26,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2023-11-29 07:09:27,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 31 states have internal predecessors, (35), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 07:09:27,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-11-29 07:09:27,002 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 6 [2023-11-29 07:09:27,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:27,002 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-11-29 07:09:27,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:27,003 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-11-29 07:09:27,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 07:09:27,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:27,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:27,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 07:09:27,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:27,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:27,005 INFO L85 PathProgramCache]: Analyzing trace with hash -394112305, now seen corresponding path program 1 times [2023-11-29 07:09:27,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:27,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174504368] [2023-11-29 07:09:27,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:27,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:27,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:27,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174504368] [2023-11-29 07:09:27,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174504368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:27,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:27,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:09:27,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794693322] [2023-11-29 07:09:27,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:27,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:09:27,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:27,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:09:27,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:09:27,114 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:27,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:27,200 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2023-11-29 07:09:27,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:09:27,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 07:09:27,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:27,202 INFO L225 Difference]: With dead ends: 61 [2023-11-29 07:09:27,203 INFO L226 Difference]: Without dead ends: 53 [2023-11-29 07:09:27,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:09:27,205 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 32 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:27,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 127 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:09:27,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-29 07:09:27,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2023-11-29 07:09:27,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.4375) internal successors, (46), 39 states have internal predecessors, (46), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 07:09:27,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2023-11-29 07:09:27,215 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 10 [2023-11-29 07:09:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:27,215 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2023-11-29 07:09:27,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2023-11-29 07:09:27,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 07:09:27,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:27,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:27,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 07:09:27,217 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:27,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:27,218 INFO L85 PathProgramCache]: Analyzing trace with hash 667420471, now seen corresponding path program 1 times [2023-11-29 07:09:27,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:27,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363818551] [2023-11-29 07:09:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:27,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:27,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:27,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363818551] [2023-11-29 07:09:27,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363818551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:27,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:27,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:09:27,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415297322] [2023-11-29 07:09:27,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:27,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:09:27,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:27,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:09:27,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:09:27,306 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:27,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:27,383 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2023-11-29 07:09:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:09:27,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-29 07:09:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:27,384 INFO L225 Difference]: With dead ends: 48 [2023-11-29 07:09:27,384 INFO L226 Difference]: Without dead ends: 46 [2023-11-29 07:09:27,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:09:27,386 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 41 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:27,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 63 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:09:27,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-29 07:09:27,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-29 07:09:27,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.34375) internal successors, (43), 37 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 07:09:27,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2023-11-29 07:09:27,395 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 11 [2023-11-29 07:09:27,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:27,395 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2023-11-29 07:09:27,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:27,396 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2023-11-29 07:09:27,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 07:09:27,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:27,396 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:27,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 07:09:27,397 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:27,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:27,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1771598313, now seen corresponding path program 1 times [2023-11-29 07:09:27,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:27,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101930485] [2023-11-29 07:09:27,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:27,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:27,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:27,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:27,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101930485] [2023-11-29 07:09:27,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101930485] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281470867] [2023-11-29 07:09:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:27,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:27,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:27,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:09:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:27,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:09:27,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:27,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:27,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281470867] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:27,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:27,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-11-29 07:09:27,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675105321] [2023-11-29 07:09:27,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:27,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:09:27,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:27,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:09:27,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:09:27,728 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 16 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 9 states have internal predecessors, (24), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:27,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:27,958 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2023-11-29 07:09:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 07:09:27,958 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 9 states have internal predecessors, (24), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-29 07:09:27,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:27,960 INFO L225 Difference]: With dead ends: 108 [2023-11-29 07:09:27,960 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 07:09:27,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:09:27,962 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 132 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:27,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 182 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:09:27,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 07:09:27,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 76. [2023-11-29 07:09:27,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 61 states have internal predecessors, (75), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 07:09:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2023-11-29 07:09:27,976 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 15 [2023-11-29 07:09:27,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:27,976 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2023-11-29 07:09:27,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 9 states have internal predecessors, (24), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:27,976 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2023-11-29 07:09:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 07:09:27,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:27,977 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:27,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:28,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:28,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:28,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:28,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1542372287, now seen corresponding path program 1 times [2023-11-29 07:09:28,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:28,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939369618] [2023-11-29 07:09:28,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:28,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 07:09:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,256 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 07:09:28,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:28,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939369618] [2023-11-29 07:09:28,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939369618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:28,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:28,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:09:28,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390620093] [2023-11-29 07:09:28,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:28,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:28,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:28,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:28,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:28,259 INFO L87 Difference]: Start difference. First operand 76 states and 90 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:09:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:28,280 INFO L93 Difference]: Finished difference Result 91 states and 110 transitions. [2023-11-29 07:09:28,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:09:28,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-29 07:09:28,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:28,283 INFO L225 Difference]: With dead ends: 91 [2023-11-29 07:09:28,283 INFO L226 Difference]: Without dead ends: 89 [2023-11-29 07:09:28,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:28,284 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:28,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 74 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:28,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-29 07:09:28,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-29 07:09:28,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 71 states have internal predecessors, (86), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2023-11-29 07:09:28,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 104 transitions. [2023-11-29 07:09:28,298 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 104 transitions. Word has length 23 [2023-11-29 07:09:28,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:28,299 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 104 transitions. [2023-11-29 07:09:28,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:09:28,299 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 104 transitions. [2023-11-29 07:09:28,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 07:09:28,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:28,300 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:28,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 07:09:28,301 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:28,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:28,301 INFO L85 PathProgramCache]: Analyzing trace with hash -148789253, now seen corresponding path program 1 times [2023-11-29 07:09:28,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:28,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647412053] [2023-11-29 07:09:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:28,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 07:09:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 07:09:28,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:28,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647412053] [2023-11-29 07:09:28,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647412053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:28,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:28,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:09:28,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480572634] [2023-11-29 07:09:28,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:28,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:09:28,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:28,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:09:28,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:09:28,388 INFO L87 Difference]: Start difference. First operand 89 states and 104 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:09:28,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:28,440 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2023-11-29 07:09:28,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:09:28,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-29 07:09:28,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:28,443 INFO L225 Difference]: With dead ends: 101 [2023-11-29 07:09:28,443 INFO L226 Difference]: Without dead ends: 99 [2023-11-29 07:09:28,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:09:28,445 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:28,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 74 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-29 07:09:28,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-29 07:09:28,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 79 states have internal predecessors, (94), 8 states have call successors, (8), 7 states have call predecessors, (8), 10 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 07:09:28,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2023-11-29 07:09:28,459 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 28 [2023-11-29 07:09:28,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:28,459 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2023-11-29 07:09:28,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:09:28,460 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2023-11-29 07:09:28,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 07:09:28,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:28,461 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:28,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 07:09:28,462 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:28,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:28,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1150946192, now seen corresponding path program 1 times [2023-11-29 07:09:28,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:28,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206681740] [2023-11-29 07:09:28,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:28,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 07:09:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 07:09:28,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:28,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206681740] [2023-11-29 07:09:28,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206681740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:28,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:28,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:09:28,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859274925] [2023-11-29 07:09:28,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:28,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:09:28,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:28,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:09:28,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:09:28,502 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:28,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:28,513 INFO L93 Difference]: Finished difference Result 99 states and 114 transitions. [2023-11-29 07:09:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:09:28,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-29 07:09:28,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:28,515 INFO L225 Difference]: With dead ends: 99 [2023-11-29 07:09:28,515 INFO L226 Difference]: Without dead ends: 98 [2023-11-29 07:09:28,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:09:28,517 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:28,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:28,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-29 07:09:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-29 07:09:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 75 states have (on average 1.2133333333333334) internal successors, (91), 78 states have internal predecessors, (91), 8 states have call successors, (8), 7 states have call predecessors, (8), 10 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 07:09:28,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2023-11-29 07:09:28,531 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 28 [2023-11-29 07:09:28,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:28,531 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2023-11-29 07:09:28,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:28,531 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2023-11-29 07:09:28,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 07:09:28,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:28,533 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1] [2023-11-29 07:09:28,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 07:09:28,533 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:28,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:28,534 INFO L85 PathProgramCache]: Analyzing trace with hash -629751161, now seen corresponding path program 1 times [2023-11-29 07:09:28,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:28,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202592264] [2023-11-29 07:09:28,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:28,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:28,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:28,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202592264] [2023-11-29 07:09:28,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202592264] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:28,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262126188] [2023-11-29 07:09:28,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:28,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:28,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:28,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:28,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:09:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:09:28,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:28,840 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:29,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262126188] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:29,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:29,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2023-11-29 07:09:29,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083174677] [2023-11-29 07:09:29,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:29,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 07:09:29,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:29,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 07:09:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2023-11-29 07:09:29,090 INFO L87 Difference]: Start difference. First operand 98 states and 111 transitions. Second operand has 28 states, 25 states have (on average 1.92) internal successors, (48), 15 states have internal predecessors, (48), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:29,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:29,614 INFO L93 Difference]: Finished difference Result 241 states and 259 transitions. [2023-11-29 07:09:29,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 07:09:29,615 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 1.92) internal successors, (48), 15 states have internal predecessors, (48), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-29 07:09:29,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:29,617 INFO L225 Difference]: With dead ends: 241 [2023-11-29 07:09:29,617 INFO L226 Difference]: Without dead ends: 211 [2023-11-29 07:09:29,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=319, Invalid=1661, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 07:09:29,620 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 307 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:29,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 405 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:09:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-29 07:09:29,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 193. [2023-11-29 07:09:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 151 states have (on average 1.205298013245033) internal successors, (182), 154 states have internal predecessors, (182), 15 states have call successors, (15), 14 states have call predecessors, (15), 22 states have return successors, (24), 24 states have call predecessors, (24), 14 states have call successors, (24) [2023-11-29 07:09:29,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 221 transitions. [2023-11-29 07:09:29,640 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 221 transitions. Word has length 30 [2023-11-29 07:09:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:29,640 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 221 transitions. [2023-11-29 07:09:29,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 1.92) internal successors, (48), 15 states have internal predecessors, (48), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 221 transitions. [2023-11-29 07:09:29,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 07:09:29,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:29,642 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:29,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 07:09:29,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:29,847 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:29,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:29,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1398885088, now seen corresponding path program 1 times [2023-11-29 07:09:29,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:29,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258208731] [2023-11-29 07:09:29,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:29,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 07:09:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:29,941 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:09:29,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:29,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258208731] [2023-11-29 07:09:29,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258208731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:29,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:29,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:09:29,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875672351] [2023-11-29 07:09:29,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:29,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:09:29,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:29,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:09:29,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:09:29,944 INFO L87 Difference]: Start difference. First operand 193 states and 221 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:29,978 INFO L93 Difference]: Finished difference Result 222 states and 256 transitions. [2023-11-29 07:09:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:09:29,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2023-11-29 07:09:29,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:29,981 INFO L225 Difference]: With dead ends: 222 [2023-11-29 07:09:29,981 INFO L226 Difference]: Without dead ends: 221 [2023-11-29 07:09:29,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:09:29,982 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:29,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:29,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-29 07:09:29,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 198. [2023-11-29 07:09:29,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 155 states have (on average 1.2) internal successors, (186), 158 states have internal predecessors, (186), 15 states have call successors, (15), 14 states have call predecessors, (15), 23 states have return successors, (25), 25 states have call predecessors, (25), 14 states have call successors, (25) [2023-11-29 07:09:29,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 226 transitions. [2023-11-29 07:09:29,997 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 226 transitions. Word has length 39 [2023-11-29 07:09:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:29,998 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 226 transitions. [2023-11-29 07:09:29,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 226 transitions. [2023-11-29 07:09:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 07:09:30,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:30,000 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:30,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 07:09:30,000 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:30,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:30,001 INFO L85 PathProgramCache]: Analyzing trace with hash 467951454, now seen corresponding path program 1 times [2023-11-29 07:09:30,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:30,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597233813] [2023-11-29 07:09:30,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:30,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 07:09:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 07:09:30,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:30,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597233813] [2023-11-29 07:09:30,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597233813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:30,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:30,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:09:30,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907920710] [2023-11-29 07:09:30,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:30,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:09:30,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:30,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:09:30,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:09:30,041 INFO L87 Difference]: Start difference. First operand 198 states and 226 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:30,054 INFO L93 Difference]: Finished difference Result 198 states and 226 transitions. [2023-11-29 07:09:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:09:30,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-11-29 07:09:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:30,056 INFO L225 Difference]: With dead ends: 198 [2023-11-29 07:09:30,057 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 07:09:30,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:09:30,058 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:30,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 47 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:30,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 07:09:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2023-11-29 07:09:30,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 155 states have (on average 1.1548387096774193) internal successors, (179), 157 states have internal predecessors, (179), 15 states have call successors, (15), 14 states have call predecessors, (15), 23 states have return successors, (25), 25 states have call predecessors, (25), 14 states have call successors, (25) [2023-11-29 07:09:30,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 219 transitions. [2023-11-29 07:09:30,072 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 219 transitions. Word has length 43 [2023-11-29 07:09:30,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:30,072 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 219 transitions. [2023-11-29 07:09:30,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:30,073 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 219 transitions. [2023-11-29 07:09:30,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 07:09:30,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:30,074 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:30,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 07:09:30,074 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:30,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:30,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1621593263, now seen corresponding path program 1 times [2023-11-29 07:09:30,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:30,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822486421] [2023-11-29 07:09:30,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:30,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 07:09:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-29 07:09:30,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:30,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822486421] [2023-11-29 07:09:30,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822486421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:30,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:30,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 07:09:30,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385328800] [2023-11-29 07:09:30,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:30,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:09:30,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:09:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:09:30,177 INFO L87 Difference]: Start difference. First operand 197 states and 219 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:30,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:30,248 INFO L93 Difference]: Finished difference Result 246 states and 273 transitions. [2023-11-29 07:09:30,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:09:30,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2023-11-29 07:09:30,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:30,250 INFO L225 Difference]: With dead ends: 246 [2023-11-29 07:09:30,250 INFO L226 Difference]: Without dead ends: 245 [2023-11-29 07:09:30,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:09:30,252 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:30,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 95 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:30,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-11-29 07:09:30,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2023-11-29 07:09:30,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.1237113402061856) internal successors, (218), 195 states have internal predecessors, (218), 15 states have call successors, (15), 14 states have call predecessors, (15), 32 states have return successors, (35), 35 states have call predecessors, (35), 14 states have call successors, (35) [2023-11-29 07:09:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 268 transitions. [2023-11-29 07:09:30,266 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 268 transitions. Word has length 44 [2023-11-29 07:09:30,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:30,267 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 268 transitions. [2023-11-29 07:09:30,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:30,267 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 268 transitions. [2023-11-29 07:09:30,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 07:09:30,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:30,268 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:30,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 07:09:30,269 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:30,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1757146468, now seen corresponding path program 1 times [2023-11-29 07:09:30,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:30,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72156231] [2023-11-29 07:09:30,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:30,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 07:09:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:09:30,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:30,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72156231] [2023-11-29 07:09:30,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72156231] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:30,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568427416] [2023-11-29 07:09:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:30,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:30,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:30,418 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:30,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:09:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:30,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:09:30,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:30,514 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:09:30,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:09:30,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568427416] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:30,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:30,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-29 07:09:30,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062096587] [2023-11-29 07:09:30,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:30,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:09:30,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:30,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:09:30,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:09:30,732 INFO L87 Difference]: Start difference. First operand 245 states and 268 transitions. Second operand has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 07:09:30,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:30,803 INFO L93 Difference]: Finished difference Result 345 states and 386 transitions. [2023-11-29 07:09:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:09:30,804 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 44 [2023-11-29 07:09:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:30,806 INFO L225 Difference]: With dead ends: 345 [2023-11-29 07:09:30,806 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 07:09:30,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:09:30,808 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:30,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:09:30,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 07:09:30,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 270. [2023-11-29 07:09:30,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 214 states have (on average 1.1074766355140186) internal successors, (237), 215 states have internal predecessors, (237), 15 states have call successors, (15), 14 states have call predecessors, (15), 37 states have return successors, (40), 40 states have call predecessors, (40), 14 states have call successors, (40) [2023-11-29 07:09:30,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 292 transitions. [2023-11-29 07:09:30,825 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 292 transitions. Word has length 44 [2023-11-29 07:09:30,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:30,825 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 292 transitions. [2023-11-29 07:09:30,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 07:09:30,825 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 292 transitions. [2023-11-29 07:09:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 07:09:30,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:30,827 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 07:09:30,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 07:09:31,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 07:09:31,034 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:31,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:31,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1485332355, now seen corresponding path program 1 times [2023-11-29 07:09:31,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:31,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510154414] [2023-11-29 07:09:31,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:31,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:31,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 07:09:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:31,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:31,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:31,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:31,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 07:09:31,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:31,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510154414] [2023-11-29 07:09:31,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510154414] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:31,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116739321] [2023-11-29 07:09:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:31,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:31,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:31,334 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:31,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:09:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:31,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:09:31,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-29 07:09:31,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:32,434 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:09:32,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116739321] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:32,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:32,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 17] total 23 [2023-11-29 07:09:32,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677232535] [2023-11-29 07:09:32,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:32,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 07:09:32,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:32,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 07:09:32,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:09:32,437 INFO L87 Difference]: Start difference. First operand 270 states and 292 transitions. Second operand has 23 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 20 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (13), 5 states have call predecessors, (13), 9 states have call successors, (13) [2023-11-29 07:09:32,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:32,668 INFO L93 Difference]: Finished difference Result 458 states and 495 transitions. [2023-11-29 07:09:32,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:09:32,669 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 20 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (13), 5 states have call predecessors, (13), 9 states have call successors, (13) Word has length 59 [2023-11-29 07:09:32,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:32,671 INFO L225 Difference]: With dead ends: 458 [2023-11-29 07:09:32,671 INFO L226 Difference]: Without dead ends: 270 [2023-11-29 07:09:32,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 106 SyntacticMatches, 10 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2023-11-29 07:09:32,674 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 86 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:32,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 231 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:09:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-11-29 07:09:32,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2023-11-29 07:09:32,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 214 states have (on average 1.088785046728972) internal successors, (233), 215 states have internal predecessors, (233), 15 states have call successors, (15), 14 states have call predecessors, (15), 37 states have return successors, (40), 40 states have call predecessors, (40), 14 states have call successors, (40) [2023-11-29 07:09:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 288 transitions. [2023-11-29 07:09:32,691 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 288 transitions. Word has length 59 [2023-11-29 07:09:32,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:32,692 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 288 transitions. [2023-11-29 07:09:32,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 20 states have internal predecessors, (67), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (13), 5 states have call predecessors, (13), 9 states have call successors, (13) [2023-11-29 07:09:32,692 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 288 transitions. [2023-11-29 07:09:32,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 07:09:32,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:32,693 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1] [2023-11-29 07:09:32,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 07:09:32,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 07:09:32,895 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:32,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:32,895 INFO L85 PathProgramCache]: Analyzing trace with hash -270856035, now seen corresponding path program 2 times [2023-11-29 07:09:32,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:32,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762998212] [2023-11-29 07:09:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:32,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:33,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:33,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762998212] [2023-11-29 07:09:33,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762998212] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:33,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035430442] [2023-11-29 07:09:33,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:09:33,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:33,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:33,474 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:33,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:09:33,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:09:33,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:33,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 07:09:33,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:33,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:34,345 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:34,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035430442] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:34,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:34,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 54 [2023-11-29 07:09:34,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215229768] [2023-11-29 07:09:34,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:34,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-11-29 07:09:34,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:34,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-11-29 07:09:34,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=2656, Unknown=0, NotChecked=0, Total=3080 [2023-11-29 07:09:34,350 INFO L87 Difference]: Start difference. First operand 270 states and 288 transitions. Second operand has 56 states, 53 states have (on average 1.9622641509433962) internal successors, (104), 29 states have internal predecessors, (104), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:35,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:35,406 INFO L93 Difference]: Finished difference Result 590 states and 614 transitions. [2023-11-29 07:09:35,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-11-29 07:09:35,406 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 53 states have (on average 1.9622641509433962) internal successors, (104), 29 states have internal predecessors, (104), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-29 07:09:35,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:35,410 INFO L225 Difference]: With dead ends: 590 [2023-11-29 07:09:35,410 INFO L226 Difference]: Without dead ends: 588 [2023-11-29 07:09:35,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2143 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1231, Invalid=6779, Unknown=0, NotChecked=0, Total=8010 [2023-11-29 07:09:35,414 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 852 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:35,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 602 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:09:35,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-11-29 07:09:35,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 563. [2023-11-29 07:09:35,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 449 states have (on average 1.0846325167037862) internal successors, (487), 449 states have internal predecessors, (487), 28 states have call successors, (28), 27 states have call predecessors, (28), 82 states have return successors, (86), 86 states have call predecessors, (86), 27 states have call successors, (86) [2023-11-29 07:09:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 601 transitions. [2023-11-29 07:09:35,453 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 601 transitions. Word has length 65 [2023-11-29 07:09:35,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:35,453 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 601 transitions. [2023-11-29 07:09:35,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 53 states have (on average 1.9622641509433962) internal successors, (104), 29 states have internal predecessors, (104), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:35,453 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 601 transitions. [2023-11-29 07:09:35,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 07:09:35,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:35,455 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-11-29 07:09:35,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 07:09:35,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 07:09:35,655 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:35,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:35,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1802647884, now seen corresponding path program 1 times [2023-11-29 07:09:35,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:35,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163652755] [2023-11-29 07:09:35,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:35,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:35,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 07:09:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:35,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 07:09:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-29 07:09:35,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:35,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163652755] [2023-11-29 07:09:35,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163652755] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:35,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379458975] [2023-11-29 07:09:35,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:35,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:35,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:35,930 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:35,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:09:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:35,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:09:35,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 27 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:09:36,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 07:09:37,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379458975] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:37,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:37,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 19] total 38 [2023-11-29 07:09:37,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597916335] [2023-11-29 07:09:37,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:37,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 07:09:37,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:37,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 07:09:37,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1292, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 07:09:37,561 INFO L87 Difference]: Start difference. First operand 563 states and 601 transitions. Second operand has 38 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 34 states have internal predecessors, (107), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2023-11-29 07:09:37,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:37,943 INFO L93 Difference]: Finished difference Result 589 states and 627 transitions. [2023-11-29 07:09:37,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 07:09:37,943 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 34 states have internal predecessors, (107), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) Word has length 69 [2023-11-29 07:09:37,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:37,945 INFO L225 Difference]: With dead ends: 589 [2023-11-29 07:09:37,945 INFO L226 Difference]: Without dead ends: 139 [2023-11-29 07:09:37,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 121 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=301, Invalid=2249, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 07:09:37,948 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 117 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:37,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 145 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:09:37,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-29 07:09:37,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2023-11-29 07:09:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 109 states have internal predecessors, (110), 27 states have call successors, (27), 27 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 137 transitions. [2023-11-29 07:09:37,956 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 137 transitions. Word has length 69 [2023-11-29 07:09:37,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:37,956 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 137 transitions. [2023-11-29 07:09:37,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 34 states have internal predecessors, (107), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2023-11-29 07:09:37,957 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 137 transitions. [2023-11-29 07:09:37,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 07:09:37,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:37,958 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 1, 1, 1] [2023-11-29 07:09:37,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:09:38,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 07:09:38,159 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:38,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:38,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1159643873, now seen corresponding path program 2 times [2023-11-29 07:09:38,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:38,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632184757] [2023-11-29 07:09:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:38,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:39,285 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:39,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:39,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632184757] [2023-11-29 07:09:39,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632184757] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:39,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309515585] [2023-11-29 07:09:39,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:09:39,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:39,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:39,287 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:39,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:09:39,361 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:09:39,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:39,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-29 07:09:39,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:39,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:41,167 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:41,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309515585] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:41,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:41,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 106 [2023-11-29 07:09:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953473791] [2023-11-29 07:09:41,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:41,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2023-11-29 07:09:41,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:41,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2023-11-29 07:09:41,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1514, Invalid=10042, Unknown=0, NotChecked=0, Total=11556 [2023-11-29 07:09:41,172 INFO L87 Difference]: Start difference. First operand 137 states and 137 transitions. Second operand has 108 states, 105 states have (on average 1.980952380952381) internal successors, (208), 55 states have internal predecessors, (208), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:42,979 INFO L93 Difference]: Finished difference Result 276 states and 301 transitions. [2023-11-29 07:09:42,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-11-29 07:09:42,980 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 105 states have (on average 1.980952380952381) internal successors, (208), 55 states have internal predecessors, (208), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2023-11-29 07:09:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:42,982 INFO L225 Difference]: With dead ends: 276 [2023-11-29 07:09:42,982 INFO L226 Difference]: Without dead ends: 274 [2023-11-29 07:09:42,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7600 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=3672, Invalid=21768, Unknown=0, NotChecked=0, Total=25440 [2023-11-29 07:09:42,991 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 561 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:42,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 60 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:09:42,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-11-29 07:09:43,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 272. [2023-11-29 07:09:43,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 216 states have (on average 1.0092592592592593) internal successors, (218), 217 states have internal predecessors, (218), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 272 transitions. [2023-11-29 07:09:43,014 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 272 transitions. Word has length 130 [2023-11-29 07:09:43,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:43,015 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 272 transitions. [2023-11-29 07:09:43,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 105 states have (on average 1.980952380952381) internal successors, (208), 55 states have internal predecessors, (208), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:43,015 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 272 transitions. [2023-11-29 07:09:43,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-11-29 07:09:43,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:43,019 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1] [2023-11-29 07:09:43,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:09:43,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 07:09:43,220 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:09:43,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:43,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1410057875, now seen corresponding path program 3 times [2023-11-29 07:09:43,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:43,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926250356] [2023-11-29 07:09:43,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:43,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:48,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:48,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926250356] [2023-11-29 07:09:48,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926250356] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:48,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493020094] [2023-11-29 07:09:48,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:09:48,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:48,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:48,146 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:48,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:09:48,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2023-11-29 07:09:48,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:48,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 108 conjunts are in the unsatisfiable core [2023-11-29 07:09:48,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:48,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:54,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493020094] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:54,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:54,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 214 [2023-11-29 07:09:54,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014066509] [2023-11-29 07:09:54,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:54,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2023-11-29 07:09:54,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:54,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2023-11-29 07:09:54,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5944, Invalid=40496, Unknown=0, NotChecked=0, Total=46440 [2023-11-29 07:09:54,848 INFO L87 Difference]: Start difference. First operand 272 states and 272 transitions. Second operand has 216 states, 213 states have (on average 1.9906103286384977) internal successors, (424), 109 states have internal predecessors, (424), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:10:00,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:00,857 INFO L93 Difference]: Finished difference Result 541 states and 592 transitions. [2023-11-29 07:10:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2023-11-29 07:10:00,858 INFO L78 Accepts]: Start accepts. Automaton has has 216 states, 213 states have (on average 1.9906103286384977) internal successors, (424), 109 states have internal predecessors, (424), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2023-11-29 07:10:00,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:00,862 INFO L225 Difference]: With dead ends: 541 [2023-11-29 07:10:00,862 INFO L226 Difference]: Without dead ends: 539 [2023-11-29 07:10:00,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32497 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=14530, Invalid=88190, Unknown=0, NotChecked=0, Total=102720 [2023-11-29 07:10:00,872 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1741 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:00,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 84 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 07:10:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-11-29 07:10:00,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2023-11-29 07:10:00,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 428 states have (on average 1.0046728971962617) internal successors, (430), 429 states have internal predecessors, (430), 107 states have call successors, (107), 107 states have call predecessors, (107), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:10:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 537 transitions. [2023-11-29 07:10:00,915 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 537 transitions. Word has length 265 [2023-11-29 07:10:00,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:00,916 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 537 transitions. [2023-11-29 07:10:00,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 213 states have (on average 1.9906103286384977) internal successors, (424), 109 states have internal predecessors, (424), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:10:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 537 transitions. [2023-11-29 07:10:00,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2023-11-29 07:10:00,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:00,927 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 1, 1, 1] [2023-11-29 07:10:00,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:10:01,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 07:10:01,128 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 07:10:01,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:01,129 INFO L85 PathProgramCache]: Analyzing trace with hash -526028929, now seen corresponding path program 3 times [2023-11-29 07:10:01,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:10:01,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088560529] [2023-11-29 07:10:01,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:01,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:10:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 0 proven. 13676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:19,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:10:19,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088560529] [2023-11-29 07:10:19,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088560529] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:10:19,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412460080] [2023-11-29 07:10:19,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:10:19,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:10:19,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:10:19,436 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:10:19,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 07:10:19,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2023-11-29 07:10:19,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:10:19,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 07:10:19,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 1352 proven. 24 refuted. 0 times theorem prover too weak. 12300 trivial. 0 not checked. [2023-11-29 07:10:20,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 1352 proven. 24 refuted. 0 times theorem prover too weak. 12300 trivial. 0 not checked. [2023-11-29 07:10:20,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412460080] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:10:20,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:10:20,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 14, 14] total 227 [2023-11-29 07:10:20,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329741888] [2023-11-29 07:10:20,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:10:20,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 228 states [2023-11-29 07:10:20,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:10:20,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 228 interpolants. [2023-11-29 07:10:20,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6590, Invalid=45166, Unknown=0, NotChecked=0, Total=51756 [2023-11-29 07:10:20,492 INFO L87 Difference]: Start difference. First operand 537 states and 537 transitions. Second operand has 228 states, 226 states have (on average 2.017699115044248) internal successors, (456), 115 states have internal predecessors, (456), 113 states have call successors, (114), 113 states have call predecessors, (114), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:10:20,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:20,962 INFO L93 Difference]: Finished difference Result 537 states and 537 transitions. [2023-11-29 07:10:20,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:10:20,963 INFO L78 Accepts]: Start accepts. Automaton has has 228 states, 226 states have (on average 2.017699115044248) internal successors, (456), 115 states have internal predecessors, (456), 113 states have call successors, (114), 113 states have call predecessors, (114), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 530 [2023-11-29 07:10:20,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:20,964 INFO L225 Difference]: With dead ends: 537 [2023-11-29 07:10:20,964 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 07:10:20,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1277 GetRequests, 1045 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19687 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=7238, Invalid=47284, Unknown=0, NotChecked=0, Total=54522 [2023-11-29 07:10:20,969 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 101 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:20,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 87 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:10:20,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 07:10:20,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 07:10:20,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:10:20,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 07:10:20,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 530 [2023-11-29 07:10:20,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:20,970 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 07:10:20,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 228 states, 226 states have (on average 2.017699115044248) internal successors, (456), 115 states have internal predecessors, (456), 113 states have call successors, (114), 113 states have call predecessors, (114), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:10:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 07:10:20,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 07:10:20,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-29 07:10:20,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-29 07:10:20,973 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-29 07:10:20,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-29 07:10:20,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-29 07:10:20,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-29 07:10:20,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-29 07:10:20,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-29 07:10:20,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 07:10:21,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:10:21,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 07:10:21,278 INFO L899 garLoopResultBuilder]: For program point id2FINAL(lines 14 17) no Hoare annotation was computed. [2023-11-29 07:10:21,278 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-11-29 07:10:21,278 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-11-29 07:10:21,278 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2023-11-29 07:10:21,279 INFO L895 garLoopResultBuilder]: At program point L16-2(line 16) the Hoare annotation is: (and (or (= id2_~x 4) (not (= 4 |id2_#in~x|))) (or (not (= 2 |id2_#in~x|)) (= id2_~x 2)) (not (= |id2_#in~x| 0))) [2023-11-29 07:10:21,279 INFO L899 garLoopResultBuilder]: For program point L16-3(line 16) no Hoare annotation was computed. [2023-11-29 07:10:21,279 INFO L899 garLoopResultBuilder]: For program point L16-4(line 16) no Hoare annotation was computed. [2023-11-29 07:10:21,279 INFO L899 garLoopResultBuilder]: For program point L16-5(line 16) no Hoare annotation was computed. [2023-11-29 07:10:21,279 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 17) the Hoare annotation is: true [2023-11-29 07:10:21,279 INFO L899 garLoopResultBuilder]: For program point id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-11-29 07:10:21,279 INFO L899 garLoopResultBuilder]: For program point id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-11-29 07:10:21,279 INFO L899 garLoopResultBuilder]: For program point id2EXIT(lines 14 17) no Hoare annotation was computed. [2023-11-29 07:10:21,280 INFO L899 garLoopResultBuilder]: For program point id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-11-29 07:10:21,280 INFO L899 garLoopResultBuilder]: For program point id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-11-29 07:10:21,280 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 07:10:21,280 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 24) no Hoare annotation was computed. [2023-11-29 07:10:21,280 INFO L895 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~input~0#1|) [2023-11-29 07:10:21,280 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-29 07:10:21,280 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 25) no Hoare annotation was computed. [2023-11-29 07:10:21,280 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 07:10:21,281 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-29 07:10:21,281 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-29 07:10:21,281 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 9 12) no Hoare annotation was computed. [2023-11-29 07:10:21,281 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 9 12) no Hoare annotation was computed. [2023-11-29 07:10:21,281 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-29 07:10:21,281 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-29 07:10:21,281 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-11-29 07:10:21,281 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2023-11-29 07:10:21,282 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2023-11-29 07:10:21,282 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 12) the Hoare annotation is: true [2023-11-29 07:10:21,282 INFO L895 garLoopResultBuilder]: At program point L11-2(line 11) the Hoare annotation is: (and (or (not (= |id_#in~x| 3)) (= 3 id_~x)) (or (= id_~x 1) (not (= |id_#in~x| 1))) (or (= 5 id_~x) (not (= 5 |id_#in~x|)))) [2023-11-29 07:10:21,282 INFO L899 garLoopResultBuilder]: For program point L11-3(line 11) no Hoare annotation was computed. [2023-11-29 07:10:21,282 INFO L899 garLoopResultBuilder]: For program point L11-4(line 11) no Hoare annotation was computed. [2023-11-29 07:10:21,282 INFO L899 garLoopResultBuilder]: For program point L11-5(line 11) no Hoare annotation was computed. [2023-11-29 07:10:21,286 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:10:21,288 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 07:10:21,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:10:21 BoogieIcfgContainer [2023-11-29 07:10:21,292 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 07:10:21,293 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 07:10:21,293 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 07:10:21,293 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 07:10:21,293 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:26" (3/4) ... [2023-11-29 07:10:21,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 07:10:21,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2023-11-29 07:10:21,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2023-11-29 07:10:21,303 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-29 07:10:21,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 07:10:21,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 07:10:21,304 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 07:10:21,384 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 07:10:21,385 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 07:10:21,385 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 07:10:21,386 INFO L158 Benchmark]: Toolchain (without parser) took 55574.73ms. Allocated memory was 146.8MB in the beginning and 977.3MB in the end (delta: 830.5MB). Free memory was 101.7MB in the beginning and 517.7MB in the end (delta: -416.0MB). Peak memory consumption was 417.5MB. Max. memory is 16.1GB. [2023-11-29 07:10:21,386 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 146.8MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:10:21,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.54ms. Allocated memory is still 146.8MB. Free memory was 101.7MB in the beginning and 91.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 07:10:21,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.66ms. Allocated memory is still 146.8MB. Free memory was 91.3MB in the beginning and 90.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 07:10:21,387 INFO L158 Benchmark]: Boogie Preprocessor took 30.81ms. Allocated memory is still 146.8MB. Free memory was 90.1MB in the beginning and 88.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 07:10:21,388 INFO L158 Benchmark]: RCFGBuilder took 259.25ms. Allocated memory is still 146.8MB. Free memory was 88.5MB in the beginning and 77.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 07:10:21,388 INFO L158 Benchmark]: TraceAbstraction took 54940.09ms. Allocated memory was 146.8MB in the beginning and 977.3MB in the end (delta: 830.5MB). Free memory was 77.0MB in the beginning and 521.9MB in the end (delta: -444.8MB). Peak memory consumption was 388.2MB. Max. memory is 16.1GB. [2023-11-29 07:10:21,389 INFO L158 Benchmark]: Witness Printer took 92.48ms. Allocated memory is still 977.3MB. Free memory was 521.9MB in the beginning and 517.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 07:10:21,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 146.8MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.54ms. Allocated memory is still 146.8MB. Free memory was 101.7MB in the beginning and 91.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.66ms. Allocated memory is still 146.8MB. Free memory was 91.3MB in the beginning and 90.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.81ms. Allocated memory is still 146.8MB. Free memory was 90.1MB in the beginning and 88.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 259.25ms. Allocated memory is still 146.8MB. Free memory was 88.5MB in the beginning and 77.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 54940.09ms. Allocated memory was 146.8MB in the beginning and 977.3MB in the end (delta: 830.5MB). Free memory was 77.0MB in the beginning and 521.9MB in the end (delta: -444.8MB). Peak memory consumption was 388.2MB. Max. memory is 16.1GB. * Witness Printer took 92.48ms. Allocated memory is still 977.3MB. Free memory was 521.9MB in the beginning and 517.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 54.9s, OverallIterations: 19, TraceHistogramMax: 53, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4046 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4036 mSDsluCounter, 2845 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2460 mSDsCounter, 378 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3983 IncrementalHoareTripleChecker+Invalid, 4361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 378 mSolverCounterUnsat, 385 mSDtfsCounter, 3983 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3182 GetRequests, 2174 SyntacticMatches, 16 SemanticMatches, 992 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63149 ImplicationChecksByTransitivity, 30.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=563occurred in iteration=15, InterpolantAutomatonStates: 551, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 148 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 215 PreInvPairs, 215 NumberOfFragments, 51 HoareAnnotationTreeSize, 215 FomulaSimplifications, 169 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 39.7s InterpolantComputationTime, 2651 NumberOfCodeBlocks, 2401 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 3821 ConstructedInterpolants, 0 QuantifiedInterpolants, 12429 SizeOfPredicates, 122 NumberOfNonLiveVariables, 1926 ConjunctsInSsa, 280 ConjunctsInUnsatCore, 37 InterpolantComputations, 10 PerfectInterpolantSequences, 27727/54493 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 07:10:21,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9933784-a2ae-415f-9694-d0eea9012c44/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE