./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/reducercommutativity/max20-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/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_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/reducercommutativity/max20-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/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_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/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 da9ac0c3f4abc9a6d9e8b4bf1276cf60fb65e65c55d9f94968d51682bf71ef87 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:58:34,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:58:35,009 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:58:35,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:58:35,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:58:35,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:58:35,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:58:35,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:58:35,042 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:58:35,042 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:58:35,043 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:58:35,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:58:35,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:58:35,044 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:58:35,045 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:58:35,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:58:35,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:58:35,047 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:58:35,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:58:35,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:58:35,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:58:35,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:58:35,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:58:35,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:58:35,050 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:58:35,051 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:58:35,051 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:58:35,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:58:35,052 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:58:35,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:58:35,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:58:35,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:58:35,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:58:35,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:58:35,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:58:35,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:58:35,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:58:35,055 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:58:35,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:58:35,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:58:35,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:58:35,056 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:58:35,056 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:58:35,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:58:35,056 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_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9ac0c3f4abc9a6d9e8b4bf1276cf60fb65e65c55d9f94968d51682bf71ef87 [2023-11-29 05:58:35,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:58:35,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:58:35,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:58:35,293 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:58:35,294 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:58:35,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/reducercommutativity/max20-1.i [2023-11-29 05:58:38,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:58:38,691 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:58:38,691 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/sv-benchmarks/c/reducercommutativity/max20-1.i [2023-11-29 05:58:38,699 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/data/ace97b8b8/1f09546a166a48188fdc0a3f753b250f/FLAG77252921a [2023-11-29 05:58:38,712 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/data/ace97b8b8/1f09546a166a48188fdc0a3f753b250f [2023-11-29 05:58:38,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:58:38,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:58:38,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:58:38,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:58:38,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:58:38,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:38,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a03cf68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38, skipping insertion in model container [2023-11-29 05:58:38,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:38,745 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:58:38,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:58:38,921 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:58:38,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:58:38,961 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:58:38,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38 WrapperNode [2023-11-29 05:58:38,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:58:38,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:58:38,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:58:38,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:58:38,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:38,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,007 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2023-11-29 05:58:39,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:58:39,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:58:39,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:58:39,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:58:39,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,043 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2023-11-29 05:58:39,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:58:39,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:58:39,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:58:39,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:58:39,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (1/1) ... [2023-11-29 05:58:39,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:58:39,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:39,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:58:39,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:58:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:58:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure max [2023-11-29 05:58:39,148 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2023-11-29 05:58:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:58:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:58:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:58:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:58:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:58:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:58:39,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:58:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:58:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:58:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:58:39,255 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:58:39,258 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:58:39,498 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:58:39,553 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:58:39,553 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 05:58:39,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:58:39 BoogieIcfgContainer [2023-11-29 05:58:39,554 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:58:39,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:58:39,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:58:39,561 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:58:39,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:58:38" (1/3) ... [2023-11-29 05:58:39,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c830f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:58:39, skipping insertion in model container [2023-11-29 05:58:39,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:38" (2/3) ... [2023-11-29 05:58:39,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c830f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:58:39, skipping insertion in model container [2023-11-29 05:58:39,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:58:39" (3/3) ... [2023-11-29 05:58:39,564 INFO L112 eAbstractionObserver]: Analyzing ICFG max20-1.i [2023-11-29 05:58:39,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:58:39,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 05:58:39,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:58:39,653 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;@429836ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:58:39,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 05:58:39,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.68) internal successors, (42), 33 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 05:58:39,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 05:58:39,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:39,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 05:58:39,668 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:39,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:39,675 INFO L85 PathProgramCache]: Analyzing trace with hash 131077, now seen corresponding path program 1 times [2023-11-29 05:58:39,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:39,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437536222] [2023-11-29 05:58:39,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:39,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:39,952 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 05:58:39,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:39,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437536222] [2023-11-29 05:58:39,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437536222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:39,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:39,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:58:39,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011610174] [2023-11-29 05:58:39,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:39,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:39,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:39,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:39,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:39,995 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.68) internal successors, (42), 33 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 05:58:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:40,096 INFO L93 Difference]: Finished difference Result 74 states and 97 transitions. [2023-11-29 05:58:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:40,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 05:58:40,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:40,107 INFO L225 Difference]: With dead ends: 74 [2023-11-29 05:58:40,107 INFO L226 Difference]: Without dead ends: 35 [2023-11-29 05:58:40,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:40,114 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:40,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 99 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:40,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-29 05:58:40,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-29 05:58:40,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 31 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2023-11-29 05:58:40,153 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 3 [2023-11-29 05:58:40,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:40,154 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2023-11-29 05:58:40,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 05:58:40,155 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-11-29 05:58:40,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 05:58:40,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:40,156 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-29 05:58:40,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:58:40,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:40,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:40,158 INFO L85 PathProgramCache]: Analyzing trace with hash -389978011, now seen corresponding path program 1 times [2023-11-29 05:58:40,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:40,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397204414] [2023-11-29 05:58:40,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:40,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:40,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:58:40,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:40,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397204414] [2023-11-29 05:58:40,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397204414] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:40,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334684163] [2023-11-29 05:58:40,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:40,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:40,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:40,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:40,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:58:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:40,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:58:40,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:40,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:58:40,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:40,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334684163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:40,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:58:40,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2023-11-29 05:58:40,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63048947] [2023-11-29 05:58:40,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:40,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:58:40,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:40,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:58:40,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:58:40,470 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:58:40,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:40,523 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2023-11-29 05:58:40,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:40,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 05:58:40,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:40,525 INFO L225 Difference]: With dead ends: 35 [2023-11-29 05:58:40,525 INFO L226 Difference]: Without dead ends: 34 [2023-11-29 05:58:40,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:58:40,528 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:40,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 107 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:40,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-29 05:58:40,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-29 05:58:40,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:40,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2023-11-29 05:58:40,535 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 6 [2023-11-29 05:58:40,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:40,536 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2023-11-29 05:58:40,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:58:40,536 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2023-11-29 05:58:40,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 05:58:40,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:40,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-29 05:58:40,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:58:40,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:40,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:40,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:40,739 INFO L85 PathProgramCache]: Analyzing trace with hash 795583620, now seen corresponding path program 1 times [2023-11-29 05:58:40,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:40,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789166354] [2023-11-29 05:58:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:40,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:58:40,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:40,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789166354] [2023-11-29 05:58:40,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789166354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:40,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:40,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:58:40,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671537645] [2023-11-29 05:58:40,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:40,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:58:40,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:40,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:58:40,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:58:40,798 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:58:40,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:40,818 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2023-11-29 05:58:40,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:58:40,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 05:58:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:40,819 INFO L225 Difference]: With dead ends: 34 [2023-11-29 05:58:40,819 INFO L226 Difference]: Without dead ends: 33 [2023-11-29 05:58:40,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:58:40,821 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:40,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:40,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-29 05:58:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2023-11-29 05:58:40,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:40,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-11-29 05:58:40,829 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 7 [2023-11-29 05:58:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:40,829 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-11-29 05:58:40,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:58:40,830 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-11-29 05:58:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 05:58:40,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:40,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:40,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:58:40,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:40,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:40,832 INFO L85 PathProgramCache]: Analyzing trace with hash 205117829, now seen corresponding path program 1 times [2023-11-29 05:58:40,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:40,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59462119] [2023-11-29 05:58:40,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:40,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:58:40,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:40,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59462119] [2023-11-29 05:58:40,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59462119] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:40,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747021377] [2023-11-29 05:58:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:40,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:40,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:40,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:40,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:58:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:40,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:58:40,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:41,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:58:41,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:41,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:58:41,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747021377] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:41,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:58:41,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-29 05:58:41,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112253397] [2023-11-29 05:58:41,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:41,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:58:41,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:41,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:58:41,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:58:41,049 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 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 05:58:41,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:41,119 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2023-11-29 05:58:41,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:58:41,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 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 12 [2023-11-29 05:58:41,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:41,120 INFO L225 Difference]: With dead ends: 63 [2023-11-29 05:58:41,121 INFO L226 Difference]: Without dead ends: 37 [2023-11-29 05:58:41,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:58:41,123 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:41,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 136 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:41,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-29 05:58:41,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-29 05:58:41,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 33 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:41,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2023-11-29 05:58:41,131 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 12 [2023-11-29 05:58:41,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:41,131 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2023-11-29 05:58:41,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 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 05:58:41,132 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-11-29 05:58:41,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 05:58:41,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:41,133 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:41,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:58:41,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:41,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:41,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1776268677, now seen corresponding path program 2 times [2023-11-29 05:58:41,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:41,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768896054] [2023-11-29 05:58:41,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:41,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:41,428 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:58:41,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:41,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768896054] [2023-11-29 05:58:41,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768896054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:41,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:41,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:58:41,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929764129] [2023-11-29 05:58:41,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:41,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:41,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:41,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:41,431 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 05:58:41,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:41,479 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2023-11-29 05:58:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:41,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 18 [2023-11-29 05:58:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:41,481 INFO L225 Difference]: With dead ends: 66 [2023-11-29 05:58:41,482 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 05:58:41,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:41,483 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:41,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 75 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 05:58:41,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-29 05:58:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.34375) internal successors, (43), 38 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:41,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2023-11-29 05:58:41,492 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 18 [2023-11-29 05:58:41,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:41,493 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2023-11-29 05:58:41,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 05:58:41,493 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2023-11-29 05:58:41,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 05:58:41,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:41,494 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:41,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:58:41,495 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:41,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:41,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1400990656, now seen corresponding path program 1 times [2023-11-29 05:58:41,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:41,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143399358] [2023-11-29 05:58:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:41,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:41,688 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:58:41,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:41,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143399358] [2023-11-29 05:58:41,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143399358] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:41,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99401693] [2023-11-29 05:58:41,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:41,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:41,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:41,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:41,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:58:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:41,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:58:41,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:58:41,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:41,956 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:58:41,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99401693] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:41,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:58:41,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-11-29 05:58:41,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541247920] [2023-11-29 05:58:41,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:41,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:58:41,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:41,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:58:41,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:58:41,959 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 states have internal predecessors, (34), 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 05:58:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:42,141 INFO L93 Difference]: Finished difference Result 85 states and 100 transitions. [2023-11-29 05:58:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:58:42,142 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 states have internal predecessors, (34), 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 23 [2023-11-29 05:58:42,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:42,143 INFO L225 Difference]: With dead ends: 85 [2023-11-29 05:58:42,143 INFO L226 Difference]: Without dead ends: 54 [2023-11-29 05:58:42,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:58:42,145 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 20 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:42,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 187 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:42,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-29 05:58:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-29 05:58:42,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.25) internal successors, (55), 50 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:42,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2023-11-29 05:58:42,155 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 23 [2023-11-29 05:58:42,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:42,155 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2023-11-29 05:58:42,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 states have internal predecessors, (34), 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 05:58:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2023-11-29 05:58:42,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 05:58:42,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:42,157 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:42,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:58:42,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 05:58:42,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:42,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:42,365 INFO L85 PathProgramCache]: Analyzing trace with hash -819667904, now seen corresponding path program 2 times [2023-11-29 05:58:42,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:42,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347834342] [2023-11-29 05:58:42,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:42,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:58:42,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:42,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347834342] [2023-11-29 05:58:42,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347834342] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:42,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199362695] [2023-11-29 05:58:42,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:58:42,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:42,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:42,713 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:42,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:58:42,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:58:42,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:58:42,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:58:42,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:42,920 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:58:42,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:43,290 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:58:43,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199362695] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:43,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:58:43,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2023-11-29 05:58:43,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488792152] [2023-11-29 05:58:43,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:43,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 05:58:43,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:43,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 05:58:43,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 05:58:43,295 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 34 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 33 states have internal predecessors, (58), 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 05:58:43,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:43,670 INFO L93 Difference]: Finished difference Result 109 states and 128 transitions. [2023-11-29 05:58:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 05:58:43,671 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 33 states have internal predecessors, (58), 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 35 [2023-11-29 05:58:43,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:43,672 INFO L225 Difference]: With dead ends: 109 [2023-11-29 05:58:43,672 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 05:58:43,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 05:58:43,675 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 96 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:43,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 161 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:43,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 05:58:43,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-29 05:58:43,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.161764705882353) internal successors, (79), 74 states have internal predecessors, (79), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2023-11-29 05:58:43,686 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 35 [2023-11-29 05:58:43,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:43,686 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2023-11-29 05:58:43,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 33 states have internal predecessors, (58), 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 05:58:43,687 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2023-11-29 05:58:43,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:58:43,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:43,689 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:43,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:58:43,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 05:58:43,893 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:43,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:43,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1460835264, now seen corresponding path program 3 times [2023-11-29 05:58:43,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:43,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185386655] [2023-11-29 05:58:43,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:43,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:44,770 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:58:44,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:44,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185386655] [2023-11-29 05:58:44,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185386655] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:44,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207005666] [2023-11-29 05:58:44,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:58:44,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:44,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:44,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:44,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:58:44,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:58:44,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:58:44,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:58:44,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:44,942 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-29 05:58:44,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:44,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207005666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:44,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:58:44,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [32] total 36 [2023-11-29 05:58:44,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557924456] [2023-11-29 05:58:44,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:44,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:58:44,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:44,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:58:44,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 05:58:44,944 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 05:58:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:44,994 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2023-11-29 05:58:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:44,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 59 [2023-11-29 05:58:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:44,996 INFO L225 Difference]: With dead ends: 78 [2023-11-29 05:58:44,996 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 05:58:44,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 05:58:44,998 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:44,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 90 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:44,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 05:58:45,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-29 05:58:45,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 68 states have (on average 1.1470588235294117) internal successors, (78), 73 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:45,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2023-11-29 05:58:45,007 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 59 [2023-11-29 05:58:45,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:45,008 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2023-11-29 05:58:45,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 05:58:45,008 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2023-11-29 05:58:45,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 05:58:45,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:45,009 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:45,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 05:58:45,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:45,213 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:45,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1958747123, now seen corresponding path program 1 times [2023-11-29 05:58:45,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:45,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972702947] [2023-11-29 05:58:45,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:45,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:45,301 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-29 05:58:45,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:45,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972702947] [2023-11-29 05:58:45,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972702947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:45,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:45,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:58:45,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961408332] [2023-11-29 05:58:45,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:45,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:45,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:45,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:45,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:45,303 INFO L87 Difference]: Start difference. First operand 77 states and 83 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 05:58:45,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:45,329 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2023-11-29 05:58:45,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:45,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 60 [2023-11-29 05:58:45,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:45,331 INFO L225 Difference]: With dead ends: 77 [2023-11-29 05:58:45,331 INFO L226 Difference]: Without dead ends: 74 [2023-11-29 05:58:45,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:45,332 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 3 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:45,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 69 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:45,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-29 05:58:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2023-11-29 05:58:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 63 states have (on average 1.1111111111111112) internal successors, (70), 66 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:45,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2023-11-29 05:58:45,340 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 60 [2023-11-29 05:58:45,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:45,341 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2023-11-29 05:58:45,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 05:58:45,341 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2023-11-29 05:58:45,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 05:58:45,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:45,342 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:45,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 05:58:45,343 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:45,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:45,343 INFO L85 PathProgramCache]: Analyzing trace with hash -530976844, now seen corresponding path program 1 times [2023-11-29 05:58:45,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:45,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672922285] [2023-11-29 05:58:45,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:45,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:45,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:58:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:45,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:58:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2023-11-29 05:58:45,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:45,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672922285] [2023-11-29 05:58:45,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672922285] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:45,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13075755] [2023-11-29 05:58:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:45,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:45,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:45,529 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:45,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:58:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:45,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:58:45,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-29 05:58:45,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:45,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13075755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:45,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:58:45,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 05:58:45,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764689580] [2023-11-29 05:58:45,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:45,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:58:45,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:45,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:58:45,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:58:45,700 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:45,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:45,727 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2023-11-29 05:58:45,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:58:45,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2023-11-29 05:58:45,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:45,729 INFO L225 Difference]: With dead ends: 78 [2023-11-29 05:58:45,729 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 05:58:45,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:58:45,731 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:45,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 41 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 05:58:45,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2023-11-29 05:58:45,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 68 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:45,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2023-11-29 05:58:45,741 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 72 [2023-11-29 05:58:45,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:45,742 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2023-11-29 05:58:45,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:45,743 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2023-11-29 05:58:45,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 05:58:45,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:45,744 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:45,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:58:45,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:45,949 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:45,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash 719587113, now seen corresponding path program 1 times [2023-11-29 05:58:45,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:45,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394137135] [2023-11-29 05:58:45,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:45,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:46,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:58:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:46,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:58:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2023-11-29 05:58:46,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:46,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394137135] [2023-11-29 05:58:46,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394137135] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:46,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754411875] [2023-11-29 05:58:46,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:46,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:46,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:46,145 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:46,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:58:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:46,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:58:46,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-29 05:58:46,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:46,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754411875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:46,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:58:46,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 05:58:46,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578148248] [2023-11-29 05:58:46,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:46,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:58:46,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:46,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:58:46,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:58:46,321 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:46,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:46,345 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2023-11-29 05:58:46,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:58:46,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2023-11-29 05:58:46,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:46,347 INFO L225 Difference]: With dead ends: 78 [2023-11-29 05:58:46,347 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 05:58:46,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:58:46,349 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:46,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 42 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:46,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 05:58:46,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2023-11-29 05:58:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 66 states have (on average 1.106060606060606) internal successors, (73), 69 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:46,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2023-11-29 05:58:46,358 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 73 [2023-11-29 05:58:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:46,358 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2023-11-29 05:58:46,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2023-11-29 05:58:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 05:58:46,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:46,360 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:46,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:58:46,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:46,561 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:46,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:46,562 INFO L85 PathProgramCache]: Analyzing trace with hash 832365422, now seen corresponding path program 1 times [2023-11-29 05:58:46,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:46,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309904075] [2023-11-29 05:58:46,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:46,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:46,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:58:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:46,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:58:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2023-11-29 05:58:46,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:46,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309904075] [2023-11-29 05:58:46,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309904075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:46,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247586643] [2023-11-29 05:58:46,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:46,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:46,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:46,751 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:46,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:58:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:46,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 05:58:46,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 05:58:47,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 05:58:48,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247586643] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:48,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:58:48,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 32, 33] total 44 [2023-11-29 05:58:48,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068393738] [2023-11-29 05:58:48,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:48,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-11-29 05:58:48,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:48,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-11-29 05:58:48,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=1445, Unknown=0, NotChecked=0, Total=1892 [2023-11-29 05:58:48,322 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 44 states, 44 states have (on average 2.2045454545454546) internal successors, (97), 44 states have internal predecessors, (97), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:48,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:48,860 INFO L93 Difference]: Finished difference Result 123 states and 140 transitions. [2023-11-29 05:58:48,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 05:58:48,861 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.2045454545454546) internal successors, (97), 44 states have internal predecessors, (97), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2023-11-29 05:58:48,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:48,862 INFO L225 Difference]: With dead ends: 123 [2023-11-29 05:58:48,862 INFO L226 Difference]: Without dead ends: 97 [2023-11-29 05:58:48,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 90 SyntacticMatches, 23 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1060, Invalid=2972, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 05:58:48,865 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 88 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:48,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 196 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:48,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-29 05:58:48,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2023-11-29 05:58:48,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 86 states have (on average 1.0930232558139534) internal successors, (94), 89 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:48,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2023-11-29 05:58:48,873 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 74 [2023-11-29 05:58:48,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:48,873 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2023-11-29 05:58:48,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.2045454545454546) internal successors, (97), 44 states have internal predecessors, (97), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:48,873 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2023-11-29 05:58:48,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 05:58:48,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:48,875 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:48,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:58:49,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:49,081 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:49,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:49,081 INFO L85 PathProgramCache]: Analyzing trace with hash 37279152, now seen corresponding path program 2 times [2023-11-29 05:58:49,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:49,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228941455] [2023-11-29 05:58:49,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:49,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:49,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 05:58:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:49,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:58:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:49,226 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2023-11-29 05:58:49,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:49,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228941455] [2023-11-29 05:58:49,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228941455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:49,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:49,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:58:49,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737896118] [2023-11-29 05:58:49,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:49,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:49,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:49,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:49,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:49,228 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:49,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:49,259 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2023-11-29 05:58:49,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:49,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 99 [2023-11-29 05:58:49,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:49,261 INFO L225 Difference]: With dead ends: 97 [2023-11-29 05:58:49,261 INFO L226 Difference]: Without dead ends: 95 [2023-11-29 05:58:49,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:49,262 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:49,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 59 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-29 05:58:49,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-11-29 05:58:49,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 88 states have (on average 1.0909090909090908) internal successors, (96), 91 states have internal predecessors, (96), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2023-11-29 05:58:49,270 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 99 [2023-11-29 05:58:49,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:49,270 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2023-11-29 05:58:49,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2023-11-29 05:58:49,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 05:58:49,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:49,272 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:49,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 05:58:49,272 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:49,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:49,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1813214443, now seen corresponding path program 1 times [2023-11-29 05:58:49,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:49,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678081440] [2023-11-29 05:58:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:49,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 05:58:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:49,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:58:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2023-11-29 05:58:49,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:49,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678081440] [2023-11-29 05:58:49,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678081440] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:49,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638023846] [2023-11-29 05:58:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:49,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:49,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:49,467 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:49,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:58:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:49,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:58:49,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:49,690 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2023-11-29 05:58:49,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:49,765 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2023-11-29 05:58:49,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638023846] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:49,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:58:49,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 15 [2023-11-29 05:58:49,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906691066] [2023-11-29 05:58:49,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:49,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 05:58:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 05:58:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:58:49,767 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:49,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:49,923 INFO L93 Difference]: Finished difference Result 148 states and 166 transitions. [2023-11-29 05:58:49,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:58:49,924 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-11-29 05:58:49,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:49,925 INFO L225 Difference]: With dead ends: 148 [2023-11-29 05:58:49,925 INFO L226 Difference]: Without dead ends: 117 [2023-11-29 05:58:49,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:58:49,926 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 30 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:49,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 196 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:49,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-29 05:58:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2023-11-29 05:58:49,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 105 states have (on average 1.1047619047619048) internal successors, (116), 108 states have internal predecessors, (116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 120 transitions. [2023-11-29 05:58:49,934 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 120 transitions. Word has length 102 [2023-11-29 05:58:49,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:49,934 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 120 transitions. [2023-11-29 05:58:49,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 120 transitions. [2023-11-29 05:58:49,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 05:58:49,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:49,937 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:49,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:58:50,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 05:58:50,141 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:50,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:50,141 INFO L85 PathProgramCache]: Analyzing trace with hash 702693446, now seen corresponding path program 1 times [2023-11-29 05:58:50,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:50,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299122387] [2023-11-29 05:58:50,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:50,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:50,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 05:58:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 05:58:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 05:58:50,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:50,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299122387] [2023-11-29 05:58:50,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299122387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:50,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:50,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:58:50,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972976542] [2023-11-29 05:58:50,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:50,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:58:50,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:50,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:58:50,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:58:50,275 INFO L87 Difference]: Start difference. First operand 112 states and 120 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:50,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:50,292 INFO L93 Difference]: Finished difference Result 112 states and 120 transitions. [2023-11-29 05:58:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:58:50,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 133 [2023-11-29 05:58:50,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:50,293 INFO L225 Difference]: With dead ends: 112 [2023-11-29 05:58:50,294 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 05:58:50,294 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 05:58:50,295 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:50,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 37 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:50,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 05:58:50,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 05:58:50,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 105 states have (on average 1.0952380952380953) internal successors, (115), 107 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:50,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2023-11-29 05:58:50,302 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 133 [2023-11-29 05:58:50,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:50,302 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 119 transitions. [2023-11-29 05:58:50,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:50,302 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 119 transitions. [2023-11-29 05:58:50,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 05:58:50,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:50,304 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:50,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 05:58:50,304 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:50,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:50,305 INFO L85 PathProgramCache]: Analyzing trace with hash 308661745, now seen corresponding path program 1 times [2023-11-29 05:58:50,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:50,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652982496] [2023-11-29 05:58:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:50,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:50,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 05:58:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 05:58:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2023-11-29 05:58:50,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:50,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652982496] [2023-11-29 05:58:50,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652982496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:50,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:50,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:58:50,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333997697] [2023-11-29 05:58:50,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:50,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:50,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:50,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:50,482 INFO L87 Difference]: Start difference. First operand 111 states and 119 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:50,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:50,513 INFO L93 Difference]: Finished difference Result 111 states and 119 transitions. [2023-11-29 05:58:50,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:50,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 134 [2023-11-29 05:58:50,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:50,515 INFO L225 Difference]: With dead ends: 111 [2023-11-29 05:58:50,515 INFO L226 Difference]: Without dead ends: 109 [2023-11-29 05:58:50,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:50,516 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:50,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 50 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:50,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-29 05:58:50,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2023-11-29 05:58:50,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 103 states have (on average 1.0776699029126213) internal successors, (111), 103 states have internal predecessors, (111), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:58:50,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 115 transitions. [2023-11-29 05:58:50,525 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 115 transitions. Word has length 134 [2023-11-29 05:58:50,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:50,526 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 115 transitions. [2023-11-29 05:58:50,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 115 transitions. [2023-11-29 05:58:50,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 05:58:50,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:50,528 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:50,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 05:58:50,528 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 05:58:50,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:50,529 INFO L85 PathProgramCache]: Analyzing trace with hash 978579602, now seen corresponding path program 1 times [2023-11-29 05:58:50,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:50,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383238906] [2023-11-29 05:58:50,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:50,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:50,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 05:58:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:50,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 05:58:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 05:58:50,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:50,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383238906] [2023-11-29 05:58:50,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383238906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:50,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:50,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:58:50,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065618713] [2023-11-29 05:58:50,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:50,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:50,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:50,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:50,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:50,710 INFO L87 Difference]: Start difference. First operand 107 states and 115 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:50,739 INFO L93 Difference]: Finished difference Result 107 states and 115 transitions. [2023-11-29 05:58:50,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:50,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 135 [2023-11-29 05:58:50,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:50,740 INFO L225 Difference]: With dead ends: 107 [2023-11-29 05:58:50,740 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 05:58:50,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:50,741 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:50,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 50 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:50,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 05:58:50,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 05:58:50,742 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 05:58:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:58:50,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2023-11-29 05:58:50,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:50,743 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:58:50,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:58:50,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:58:50,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 05:58:50,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-29 05:58:50,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-29 05:58:50,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-29 05:58:50,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-29 05:58:50,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-29 05:58:50,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-29 05:58:50,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-29 05:58:50,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-29 05:58:50,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 05:58:50,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 05:58:50,788 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-29 05:58:50,789 INFO L899 garLoopResultBuilder]: For program point L21-2(line 21) no Hoare annotation was computed. [2023-11-29 05:58:50,789 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 15 24) the Hoare annotation is: true [2023-11-29 05:58:50,789 INFO L899 garLoopResultBuilder]: For program point maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2023-11-29 05:58:50,789 INFO L899 garLoopResultBuilder]: For program point maxEXIT(lines 15 24) no Hoare annotation was computed. [2023-11-29 05:58:50,789 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2023-11-29 05:58:50,789 INFO L899 garLoopResultBuilder]: For program point L20-4(line 20) no Hoare annotation was computed. [2023-11-29 05:58:50,790 INFO L895 garLoopResultBuilder]: At program point L20-5(lines 20 22) the Hoare annotation is: (< 0 (+ 2147483649 max_~i~0)) [2023-11-29 05:58:50,790 INFO L899 garLoopResultBuilder]: For program point L20-6(lines 20 22) no Hoare annotation was computed. [2023-11-29 05:58:50,790 INFO L899 garLoopResultBuilder]: For program point maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2023-11-29 05:58:50,790 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-29 05:58:50,790 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-29 05:58:50,790 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-29 05:58:50,790 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-29 05:58:50,791 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-29 05:58:50,791 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 51) no Hoare annotation was computed. [2023-11-29 05:58:50,791 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 51) no Hoare annotation was computed. [2023-11-29 05:58:50,791 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-29 05:58:50,791 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-29 05:58:50,791 INFO L902 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: true [2023-11-29 05:58:50,791 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-29 05:58:50,791 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-29 05:58:50,791 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 05:58:50,792 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-29 05:58:50,792 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 05:58:50,792 INFO L902 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: true [2023-11-29 05:58:50,792 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2023-11-29 05:58:50,792 INFO L899 garLoopResultBuilder]: For program point L34-3(line 34) no Hoare annotation was computed. [2023-11-29 05:58:50,792 INFO L899 garLoopResultBuilder]: For program point L34-4(line 34) no Hoare annotation was computed. [2023-11-29 05:58:50,792 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-29 05:58:50,793 INFO L895 garLoopResultBuilder]: At program point L34-5(lines 34 36) the Hoare annotation is: (< 0 (+ 2147483649 |ULTIMATE.start_main_~i~1#1|)) [2023-11-29 05:58:50,793 INFO L899 garLoopResultBuilder]: For program point L34-6(lines 34 36) no Hoare annotation was computed. [2023-11-29 05:58:50,793 INFO L902 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: true [2023-11-29 05:58:50,793 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2023-11-29 05:58:50,793 INFO L899 garLoopResultBuilder]: For program point L43-3(line 43) no Hoare annotation was computed. [2023-11-29 05:58:50,793 INFO L899 garLoopResultBuilder]: For program point L43-4(line 43) no Hoare annotation was computed. [2023-11-29 05:58:50,793 INFO L895 garLoopResultBuilder]: At program point L43-5(lines 43 45) the Hoare annotation is: (< 0 (+ 2147483650 |ULTIMATE.start_main_~i~2#1|)) [2023-11-29 05:58:50,793 INFO L899 garLoopResultBuilder]: For program point L43-6(lines 43 45) no Hoare annotation was computed. [2023-11-29 05:58:50,797 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:50,799 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:58:50,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:58:50 BoogieIcfgContainer [2023-11-29 05:58:50,812 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:58:50,813 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:58:50,813 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:58:50,813 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:58:50,814 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:58:39" (3/4) ... [2023-11-29 05:58:50,816 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:58:50,820 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure max [2023-11-29 05:58:50,826 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 05:58:50,826 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-29 05:58:50,827 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 05:58:50,827 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:58:50,936 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:58:50,937 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:58:50,937 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:58:50,938 INFO L158 Benchmark]: Toolchain (without parser) took 12221.74ms. Allocated memory was 144.7MB in the beginning and 184.5MB in the end (delta: 39.8MB). Free memory was 99.2MB in the beginning and 56.4MB in the end (delta: 42.8MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. [2023-11-29 05:58:50,938 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:58:50,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.68ms. Allocated memory is still 144.7MB. Free memory was 99.2MB in the beginning and 88.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:58:50,939 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.87ms. Allocated memory is still 144.7MB. Free memory was 88.4MB in the beginning and 86.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:58:50,939 INFO L158 Benchmark]: Boogie Preprocessor took 54.75ms. Allocated memory is still 144.7MB. Free memory was 86.7MB in the beginning and 84.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:58:50,940 INFO L158 Benchmark]: RCFGBuilder took 490.01ms. Allocated memory was 144.7MB in the beginning and 184.5MB in the end (delta: 39.8MB). Free memory was 84.6MB in the beginning and 156.4MB in the end (delta: -71.8MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-11-29 05:58:50,940 INFO L158 Benchmark]: TraceAbstraction took 11255.46ms. Allocated memory is still 184.5MB. Free memory was 155.5MB in the beginning and 61.7MB in the end (delta: 93.8MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. [2023-11-29 05:58:50,941 INFO L158 Benchmark]: Witness Printer took 123.96ms. Allocated memory is still 184.5MB. Free memory was 61.7MB in the beginning and 56.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:58:50,943 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 92.3MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.68ms. Allocated memory is still 144.7MB. Free memory was 99.2MB in the beginning and 88.4MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.87ms. Allocated memory is still 144.7MB. Free memory was 88.4MB in the beginning and 86.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.75ms. Allocated memory is still 144.7MB. Free memory was 86.7MB in the beginning and 84.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 490.01ms. Allocated memory was 144.7MB in the beginning and 184.5MB in the end (delta: 39.8MB). Free memory was 84.6MB in the beginning and 156.4MB in the end (delta: -71.8MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11255.46ms. Allocated memory is still 184.5MB. Free memory was 155.5MB in the beginning and 61.7MB in the end (delta: 93.8MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. * Witness Printer took 123.96ms. Allocated memory is still 184.5MB. Free memory was 61.7MB in the beginning and 56.4MB in the end (delta: 5.2MB). 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 17, TraceHistogramMax: 20, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 294 mSDsluCounter, 1651 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1247 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 889 IncrementalHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 404 mSDtfsCounter, 889 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 882 GetRequests, 630 SyntacticMatches, 23 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2183 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=14, InterpolantAutomatonStates: 155, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 26 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 45 PreInvPairs, 81 NumberOfFragments, 19 HoareAnnotationTreeSize, 45 FomulaSimplifications, 362 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1501 NumberOfCodeBlocks, 1459 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1716 ConstructedInterpolants, 0 QuantifiedInterpolants, 2406 SizeOfPredicates, 30 NumberOfNonLiveVariables, 1897 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 7442/8759 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 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (0 < (2147483649 + i)) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (0 < (2147483650 + i)) RESULT: Ultimate proved your program to be correct! [2023-11-29 05:58:50,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdaefadb-db41-41e5-afe7-c3d9ebccc31b/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