./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/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_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/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_cd6d037f-2acf-433d-9313-461aff0e4199/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 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:33:50,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:33:50,587 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:33:50,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:33:50,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:33:50,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:33:50,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:33:50,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:33:50,616 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:33:50,617 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:33:50,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:33:50,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:33:50,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:33:50,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:33:50,619 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:33:50,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:33:50,620 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:33:50,621 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:33:50,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:33:50,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:33:50,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:33:50,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:33:50,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:33:50,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:33:50,624 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:33:50,624 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:33:50,625 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:33:50,625 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:33:50,625 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:33:50,626 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:33:50,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:33:50,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:33:50,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:33:50,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:33:50,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:33:50,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:33:50,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:33:50,628 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:33:50,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:33:50,628 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:33:50,628 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:33:50,629 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:33:50,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:33:50,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:33:50,629 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_cd6d037f-2acf-433d-9313-461aff0e4199/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12544117846b274bd1cb12a6694f8fda1d77f0b1327b2e9a353cfe44563b100a [2023-11-29 05:33:50,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:33:50,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:33:50,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:33:50,875 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:33:50,876 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:33:50,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2023-11-29 05:33:53,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:33:53,805 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:33:53,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2023-11-29 05:33:53,821 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/data/c51a7c85c/a41d29f8c8154177a4f46f0b44e04c46/FLAGe146b971f [2023-11-29 05:33:53,833 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/data/c51a7c85c/a41d29f8c8154177a4f46f0b44e04c46 [2023-11-29 05:33:53,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:33:53,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:33:53,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:33:53,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:33:53,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:33:53,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:33:53" (1/1) ... [2023-11-29 05:33:53,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251c5030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:53, skipping insertion in model container [2023-11-29 05:33:53,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:33:53" (1/1) ... [2023-11-29 05:33:53,903 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:33:54,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:33:54,262 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:33:54,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:33:54,339 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:33:54,345 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:33:54,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54 WrapperNode [2023-11-29 05:33:54,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:33:54,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:33:54,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:33:54,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:33:54,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,389 INFO L138 Inliner]: procedures = 164, calls = 72, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 50 [2023-11-29 05:33:54,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:33:54,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:33:54,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:33:54,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:33:54,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,417 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2023-11-29 05:33:54,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:33:54,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:33:54,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:33:54,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:33:54,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (1/1) ... [2023-11-29 05:33:54,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:33:54,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:54,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:33:54,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:33:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-29 05:33:54,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-29 05:33:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 05:33:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:33:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 05:33:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 05:33:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 05:33:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 05:33:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:33:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 05:33:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 05:33:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:33:54,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:33:54,618 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:33:54,621 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:33:54,737 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:33:54,759 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:33:54,760 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 05:33:54,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:33:54 BoogieIcfgContainer [2023-11-29 05:33:54,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:33:54,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:33:54,764 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:33:54,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:33:54,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:33:53" (1/3) ... [2023-11-29 05:33:54,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9c19f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:33:54, skipping insertion in model container [2023-11-29 05:33:54,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:33:54" (2/3) ... [2023-11-29 05:33:54,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9c19f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:33:54, skipping insertion in model container [2023-11-29 05:33:54,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:33:54" (3/3) ... [2023-11-29 05:33:54,770 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2023-11-29 05:33:54,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:33:54,791 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 05:33:54,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:33:54,840 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;@954e0d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:33:54,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 05:33:54,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 23 states have internal predecessors, (30), 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 05:33:54,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 05:33:54,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:54,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:54,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:54,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:54,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1166940630, now seen corresponding path program 1 times [2023-11-29 05:33:54,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:54,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340632329] [2023-11-29 05:33:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:54,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:55,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:55,167 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 05:33:55,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:55,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340632329] [2023-11-29 05:33:55,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340632329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:33:55,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:33:55,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:33:55,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107747497] [2023-11-29 05:33:55,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:33:55,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:33:55,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:55,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:33:55,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:33:55,201 INFO L87 Difference]: Start difference. First operand has 27 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 23 states have internal predecessors, (30), 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) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:33:55,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:55,290 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2023-11-29 05:33:55,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:33:55,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-11-29 05:33:55,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:55,300 INFO L225 Difference]: With dead ends: 56 [2023-11-29 05:33:55,301 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 05:33:55,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:33:55,307 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 39 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:55,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 67 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:33:55,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 05:33:55,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2023-11-29 05:33:55,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 26 states have internal predecessors, (31), 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 05:33:55,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-11-29 05:33:55,347 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 10 [2023-11-29 05:33:55,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:55,347 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-11-29 05:33:55,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 05:33:55,348 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-29 05:33:55,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 05:33:55,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:55,349 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:55,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:33:55,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:55,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:55,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1560138592, now seen corresponding path program 1 times [2023-11-29 05:33:55,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:55,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948651637] [2023-11-29 05:33:55,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:55,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:55,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:55,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:33:55,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:55,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948651637] [2023-11-29 05:33:55,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948651637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:33:55,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:33:55,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:33:55,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606708127] [2023-11-29 05:33:55,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:33:55,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:33:55,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:55,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:33:55,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:33:55,539 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 05:33:55,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:55,625 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2023-11-29 05:33:55,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:33:55,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 17 [2023-11-29 05:33:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:55,626 INFO L225 Difference]: With dead ends: 42 [2023-11-29 05:33:55,627 INFO L226 Difference]: Without dead ends: 40 [2023-11-29 05:33:55,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:33:55,629 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:55,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 79 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:33:55,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-29 05:33:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2023-11-29 05:33:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.434782608695652) internal successors, (33), 28 states have internal predecessors, (33), 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 05:33:55,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2023-11-29 05:33:55,637 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 17 [2023-11-29 05:33:55,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:55,638 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2023-11-29 05:33:55,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 05:33:55,638 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-11-29 05:33:55,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 05:33:55,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:55,639 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:55,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:33:55,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:55,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:55,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2047217962, now seen corresponding path program 1 times [2023-11-29 05:33:55,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:55,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618971092] [2023-11-29 05:33:55,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:55,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:55,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:55,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:55,765 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:33:55,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:55,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618971092] [2023-11-29 05:33:55,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618971092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:55,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563944280] [2023-11-29 05:33:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:55,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:55,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:55,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:55,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:33:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:55,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:33:55,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:33:55,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:33:55,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563944280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:33:55,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:33:55,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-29 05:33:55,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962764940] [2023-11-29 05:33:55,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:33:55,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:33:55,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:55,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:33:55,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:33:55,929 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 05:33:55,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:55,989 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-11-29 05:33:55,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:33:55,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) Word has length 20 [2023-11-29 05:33:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:55,991 INFO L225 Difference]: With dead ends: 38 [2023-11-29 05:33:55,991 INFO L226 Difference]: Without dead ends: 36 [2023-11-29 05:33:55,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:33:55,993 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:55,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 63 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:33:55,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-29 05:33:55,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2023-11-29 05:33:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 26 states have internal predecessors, (31), 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 05:33:56,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-11-29 05:33:56,001 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 20 [2023-11-29 05:33:56,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:56,001 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-11-29 05:33:56,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 05:33:56,002 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-29 05:33:56,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 05:33:56,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:56,003 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:56,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:33:56,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:56,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:56,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:56,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2086712475, now seen corresponding path program 1 times [2023-11-29 05:33:56,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:56,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551880617] [2023-11-29 05:33:56,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:56,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:33:56,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:56,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551880617] [2023-11-29 05:33:56,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551880617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:33:56,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:33:56,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:33:56,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378607322] [2023-11-29 05:33:56,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:33:56,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:33:56,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:56,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:33:56,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:33:56,308 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:33:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:56,358 INFO L93 Difference]: Finished difference Result 64 states and 77 transitions. [2023-11-29 05:33:56,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:33:56,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-29 05:33:56,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:56,360 INFO L225 Difference]: With dead ends: 64 [2023-11-29 05:33:56,360 INFO L226 Difference]: Without dead ends: 54 [2023-11-29 05:33:56,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:33:56,362 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:56,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 127 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:33:56,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-29 05:33:56,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2023-11-29 05:33:56,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 30 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:33:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2023-11-29 05:33:56,371 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 20 [2023-11-29 05:33:56,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:56,372 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2023-11-29 05:33:56,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:33:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-11-29 05:33:56,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 05:33:56,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:56,373 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:56,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:33:56,373 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:56,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:56,374 INFO L85 PathProgramCache]: Analyzing trace with hash 400800358, now seen corresponding path program 1 times [2023-11-29 05:33:56,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:56,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712380420] [2023-11-29 05:33:56,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:56,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:33:56,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:56,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712380420] [2023-11-29 05:33:56,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712380420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:33:56,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:33:56,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:33:56,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541427400] [2023-11-29 05:33:56,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:33:56,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:33:56,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:56,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:33:56,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:33:56,443 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 05:33:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:56,492 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2023-11-29 05:33:56,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:33:56,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 20 [2023-11-29 05:33:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:56,494 INFO L225 Difference]: With dead ends: 43 [2023-11-29 05:33:56,494 INFO L226 Difference]: Without dead ends: 35 [2023-11-29 05:33:56,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:33:56,495 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:56,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 83 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:33:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-29 05:33:56,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2023-11-29 05:33:56,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:33:56,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-11-29 05:33:56,502 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 20 [2023-11-29 05:33:56,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:56,503 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-11-29 05:33:56,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 05:33:56,503 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-11-29 05:33:56,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 05:33:56,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:56,504 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:56,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:33:56,504 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:56,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:56,505 INFO L85 PathProgramCache]: Analyzing trace with hash 960752691, now seen corresponding path program 1 times [2023-11-29 05:33:56,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:56,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610179567] [2023-11-29 05:33:56,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:56,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:33:56,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:56,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610179567] [2023-11-29 05:33:56,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610179567] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:56,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937097426] [2023-11-29 05:33:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:56,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:56,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:56,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:56,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:33:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:56,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:33:56,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:33:56,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:33:56,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937097426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:33:56,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:33:56,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 05:33:56,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684186530] [2023-11-29 05:33:56,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:33:56,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:33:56,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:56,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:33:56,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:33:56,737 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 05:33:56,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:56,753 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2023-11-29 05:33:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:33:56,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 21 [2023-11-29 05:33:56,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:56,755 INFO L225 Difference]: With dead ends: 33 [2023-11-29 05:33:56,755 INFO L226 Difference]: Without dead ends: 32 [2023-11-29 05:33:56,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:33:56,757 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:56,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 26 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:33:56,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-29 05:33:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-29 05:33:56,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.25) internal successors, (30), 26 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:33:56,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-11-29 05:33:56,766 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 21 [2023-11-29 05:33:56,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:56,766 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-11-29 05:33:56,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 05:33:56,766 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-11-29 05:33:56,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 05:33:56,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:56,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:56,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:33:56,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:56,974 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:56,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:56,975 INFO L85 PathProgramCache]: Analyzing trace with hash -134629311, now seen corresponding path program 1 times [2023-11-29 05:33:56,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:56,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068867431] [2023-11-29 05:33:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:56,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 05:33:57,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:57,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068867431] [2023-11-29 05:33:57,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068867431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:33:57,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:33:57,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:33:57,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857609516] [2023-11-29 05:33:57,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:33:57,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:33:57,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:57,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:33:57,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:33:57,046 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 05:33:57,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:57,072 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2023-11-29 05:33:57,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:33:57,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 23 [2023-11-29 05:33:57,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:57,073 INFO L225 Difference]: With dead ends: 32 [2023-11-29 05:33:57,073 INFO L226 Difference]: Without dead ends: 31 [2023-11-29 05:33:57,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:33:57,075 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:57,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 56 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:33:57,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-29 05:33:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-29 05:33:57,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 05:33:57,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-11-29 05:33:57,082 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 23 [2023-11-29 05:33:57,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:57,082 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-11-29 05:33:57,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 05:33:57,083 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-29 05:33:57,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 05:33:57,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:57,084 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:57,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 05:33:57,084 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:57,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:57,085 INFO L85 PathProgramCache]: Analyzing trace with hash 121458742, now seen corresponding path program 1 times [2023-11-29 05:33:57,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:57,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204321519] [2023-11-29 05:33:57,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:57,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:33:57,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:57,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204321519] [2023-11-29 05:33:57,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204321519] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:57,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769693518] [2023-11-29 05:33:57,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:57,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:57,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:57,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:57,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:33:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:33:57,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:33:57,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:33:57,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769693518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:57,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:33:57,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2023-11-29 05:33:57,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30741278] [2023-11-29 05:33:57,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:57,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:33:57,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:57,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:33:57,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:33:57,454 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:33:57,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:57,605 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2023-11-29 05:33:57,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:33:57,606 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 24 [2023-11-29 05:33:57,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:57,607 INFO L225 Difference]: With dead ends: 59 [2023-11-29 05:33:57,607 INFO L226 Difference]: Without dead ends: 53 [2023-11-29 05:33:57,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:33:57,608 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 112 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:57,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 89 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:33:57,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-29 05:33:57,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 40. [2023-11-29 05:33:57,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:33:57,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2023-11-29 05:33:57,617 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 24 [2023-11-29 05:33:57,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:57,618 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2023-11-29 05:33:57,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:33:57,618 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2023-11-29 05:33:57,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 05:33:57,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:57,619 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:57,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:33:57,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 05:33:57,822 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:57,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:57,822 INFO L85 PathProgramCache]: Analyzing trace with hash -662475294, now seen corresponding path program 1 times [2023-11-29 05:33:57,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:57,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577825882] [2023-11-29 05:33:57,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:57,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:33:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:57,952 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:33:57,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:57,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577825882] [2023-11-29 05:33:57,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577825882] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:57,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184666763] [2023-11-29 05:33:57,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:57,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:57,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:57,954 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:57,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:33:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:58,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:33:58,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:33:58,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:33:58,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184666763] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:58,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:33:58,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2023-11-29 05:33:58,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998135281] [2023-11-29 05:33:58,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:58,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:33:58,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:58,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:33:58,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:33:58,165 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:33:58,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:58,309 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2023-11-29 05:33:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:33:58,309 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 28 [2023-11-29 05:33:58,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:58,311 INFO L225 Difference]: With dead ends: 74 [2023-11-29 05:33:58,311 INFO L226 Difference]: Without dead ends: 73 [2023-11-29 05:33:58,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:33:58,312 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 56 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:58,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 121 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:33:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-29 05:33:58,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 55. [2023-11-29 05:33:58,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.2) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 10 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 05:33:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 72 transitions. [2023-11-29 05:33:58,322 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 72 transitions. Word has length 28 [2023-11-29 05:33:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:58,323 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 72 transitions. [2023-11-29 05:33:58,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:33:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2023-11-29 05:33:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 05:33:58,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:58,324 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:58,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:33:58,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:58,526 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:58,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:58,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1847550543, now seen corresponding path program 1 times [2023-11-29 05:33:58,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:58,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399731588] [2023-11-29 05:33:58,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:58,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:58,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:58,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:58,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:33:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:33:58,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:58,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399731588] [2023-11-29 05:33:58,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399731588] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:58,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442743019] [2023-11-29 05:33:58,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:58,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:58,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:58,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:58,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:33:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:58,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:33:58,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:33:58,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:33:58,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442743019] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:58,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:33:58,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2023-11-29 05:33:58,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741962860] [2023-11-29 05:33:58,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:58,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 05:33:58,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:58,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 05:33:58,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:33:58,870 INFO L87 Difference]: Start difference. First operand 55 states and 72 transitions. Second operand has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:33:59,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:59,037 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2023-11-29 05:33:59,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:33:59,037 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2023-11-29 05:33:59,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:59,038 INFO L225 Difference]: With dead ends: 60 [2023-11-29 05:33:59,038 INFO L226 Difference]: Without dead ends: 49 [2023-11-29 05:33:59,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:33:59,040 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:59,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 112 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:33:59,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-29 05:33:59,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 39. [2023-11-29 05:33:59,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.064516129032258) internal successors, (33), 31 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:33:59,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2023-11-29 05:33:59,048 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 31 [2023-11-29 05:33:59,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:59,049 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2023-11-29 05:33:59,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:33:59,049 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2023-11-29 05:33:59,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 05:33:59,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:59,051 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:59,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:33:59,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:59,254 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:33:59,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1483893986, now seen corresponding path program 2 times [2023-11-29 05:33:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:59,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321363406] [2023-11-29 05:33:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:59,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:33:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:33:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:33:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:33:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:59,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 05:33:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:59,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 05:33:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:33:59,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:59,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321363406] [2023-11-29 05:33:59,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321363406] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:59,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710869496] [2023-11-29 05:33:59,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:33:59,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:59,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:59,519 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:59,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:33:59,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:33:59,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:33:59,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:33:59,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:59,719 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:33:59,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:59,909 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:33:59,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710869496] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:59,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:33:59,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2023-11-29 05:33:59,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608557442] [2023-11-29 05:33:59,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:59,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 05:33:59,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:59,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 05:33:59,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2023-11-29 05:33:59,913 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 25 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:34:00,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:00,167 INFO L93 Difference]: Finished difference Result 78 states and 106 transitions. [2023-11-29 05:34:00,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 05:34:00,168 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 58 [2023-11-29 05:34:00,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:00,169 INFO L225 Difference]: With dead ends: 78 [2023-11-29 05:34:00,169 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 05:34:00,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 05:34:00,171 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 35 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:00,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 119 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:34:00,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 05:34:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2023-11-29 05:34:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 61 states have internal predecessors, (63), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:34:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2023-11-29 05:34:00,184 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 58 [2023-11-29 05:34:00,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:00,184 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2023-11-29 05:34:00,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:34:00,185 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2023-11-29 05:34:00,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 05:34:00,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:00,187 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2023-11-29 05:34:00,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 05:34:00,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:00,390 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 05:34:00,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:00,390 INFO L85 PathProgramCache]: Analyzing trace with hash 86485730, now seen corresponding path program 3 times [2023-11-29 05:34:00,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:00,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726376289] [2023-11-29 05:34:00,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:00,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:34:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 05:34:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:34:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 05:34:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 05:34:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 05:34:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:34:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 05:34:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:34:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 05:34:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 05:34:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 05:34:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:01,337 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 275 proven. 55 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 05:34:01,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:34:01,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726376289] [2023-11-29 05:34:01,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726376289] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:34:01,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612366819] [2023-11-29 05:34:01,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:34:01,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:01,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:01,340 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:34:01,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:34:01,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:34:01,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:34:01,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:34:01,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:01,591 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 05:34:01,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:34:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 05:34:01,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612366819] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:34:01,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:34:01,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 4, 4] total 30 [2023-11-29 05:34:01,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044473224] [2023-11-29 05:34:01,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:34:01,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 05:34:01,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:34:01,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 05:34:01,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2023-11-29 05:34:01,758 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 30 states, 30 states have (on average 2.9) internal successors, (87), 29 states have internal predecessors, (87), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-29 05:34:02,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:02,533 INFO L93 Difference]: Finished difference Result 82 states and 104 transitions. [2023-11-29 05:34:02,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 05:34:02,534 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.9) internal successors, (87), 29 states have internal predecessors, (87), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 118 [2023-11-29 05:34:02,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:02,535 INFO L225 Difference]: With dead ends: 82 [2023-11-29 05:34:02,535 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 05:34:02,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=744, Invalid=2562, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 05:34:02,538 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 27 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:02,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 380 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:34:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 05:34:02,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 05:34:02,539 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 05:34:02,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:34:02,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 118 [2023-11-29 05:34:02,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:02,540 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:34:02,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.9) internal successors, (87), 29 states have internal predecessors, (87), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-29 05:34:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:34:02,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 05:34:02,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-29 05:34:02,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-29 05:34:02,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-29 05:34:02,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-29 05:34:02,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-29 05:34:02,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-29 05:34:02,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:34:02,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:02,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 05:34:03,156 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 530) no Hoare annotation was computed. [2023-11-29 05:34:03,157 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 525 531) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-29 05:34:03,157 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 525 531) no Hoare annotation was computed. [2023-11-29 05:34:03,157 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2023-11-29 05:34:03,157 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2023-11-29 05:34:03,157 INFO L899 garLoopResultBuilder]: For program point L766(line 766) no Hoare annotation was computed. [2023-11-29 05:34:03,157 INFO L895 garLoopResultBuilder]: At program point L762(line 762) the Hoare annotation is: (= 10 |ULTIMATE.start_entry_point_~len~0#1|) [2023-11-29 05:34:03,157 INFO L899 garLoopResultBuilder]: For program point L762-1(line 762) no Hoare annotation was computed. [2023-11-29 05:34:03,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed. [2023-11-29 05:34:03,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2023-11-29 05:34:03,158 INFO L899 garLoopResultBuilder]: For program point L767-3(line 767) no Hoare annotation was computed. [2023-11-29 05:34:03,158 INFO L899 garLoopResultBuilder]: For program point L767-4(line 767) no Hoare annotation was computed. [2023-11-29 05:34:03,158 INFO L895 garLoopResultBuilder]: At program point L767-5(lines 767 771) the Hoare annotation is: (let ((.cse0 (= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 3)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 1)) (and (= |ULTIMATE.start_entry_point_~i~0#1| 2) .cse0) (and .cse0 (<= 5 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483642)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 4)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (and (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483646) .cse0 (<= 9 |ULTIMATE.start_entry_point_~i~0#1|)))) [2023-11-29 05:34:03,158 INFO L899 garLoopResultBuilder]: For program point L772(lines 760 777) no Hoare annotation was computed. [2023-11-29 05:34:03,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed. [2023-11-29 05:34:03,158 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 05:34:03,159 INFO L895 garLoopResultBuilder]: At program point L768(line 768) the Hoare annotation is: (let ((.cse0 (= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 3)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 1)) (and (= |ULTIMATE.start_entry_point_~i~0#1| 2) .cse0) (and .cse0 (<= 5 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 9)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 4)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0)))) [2023-11-29 05:34:03,159 INFO L899 garLoopResultBuilder]: For program point L768-1(line 768) no Hoare annotation was computed. [2023-11-29 05:34:03,159 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2023-11-29 05:34:03,159 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 05:34:03,159 INFO L899 garLoopResultBuilder]: For program point L773(line 773) no Hoare annotation was computed. [2023-11-29 05:34:03,159 INFO L899 garLoopResultBuilder]: For program point L769(line 769) no Hoare annotation was computed. [2023-11-29 05:34:03,160 INFO L899 garLoopResultBuilder]: For program point L773-4(line 773) no Hoare annotation was computed. [2023-11-29 05:34:03,160 INFO L899 garLoopResultBuilder]: For program point L773-5(line 773) no Hoare annotation was computed. [2023-11-29 05:34:03,160 INFO L895 garLoopResultBuilder]: At program point L773-6(lines 773 775) the Hoare annotation is: (and (or (< 0 |ULTIMATE.start_entry_point_~i~0#1|) (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483647) (<= 10 |ULTIMATE.start_entry_point_~len~0#1|) (<= |ULTIMATE.start_entry_point_~j~0#1| 2147483648)) [2023-11-29 05:34:03,160 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2023-11-29 05:34:03,160 INFO L899 garLoopResultBuilder]: For program point L773-7(lines 760 777) no Hoare annotation was computed. [2023-11-29 05:34:03,164 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:34:03,165 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:34:03,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:34:03 BoogieIcfgContainer [2023-11-29 05:34:03,175 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:34:03,176 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:34:03,176 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:34:03,176 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:34:03,176 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:33:54" (3/4) ... [2023-11-29 05:34:03,178 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:34:03,181 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-29 05:34:03,184 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-29 05:34:03,184 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 05:34:03,185 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 05:34:03,253 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:34:03,253 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:34:03,254 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:34:03,254 INFO L158 Benchmark]: Toolchain (without parser) took 9417.45ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 129.8MB in the beginning and 142.9MB in the end (delta: -13.1MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2023-11-29 05:34:03,255 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:34:03,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.77ms. Allocated memory is still 163.6MB. Free memory was 129.8MB in the beginning and 120.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:34:03,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.73ms. Allocated memory is still 163.6MB. Free memory was 120.4MB in the beginning and 118.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:34:03,256 INFO L158 Benchmark]: Boogie Preprocessor took 43.08ms. Allocated memory is still 163.6MB. Free memory was 118.3MB in the beginning and 116.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:34:03,256 INFO L158 Benchmark]: RCFGBuilder took 326.38ms. Allocated memory is still 163.6MB. Free memory was 116.2MB in the beginning and 102.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 05:34:03,257 INFO L158 Benchmark]: TraceAbstraction took 8411.91ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 101.6MB in the beginning and 148.1MB in the end (delta: -46.6MB). Peak memory consumption was 111.6MB. Max. memory is 16.1GB. [2023-11-29 05:34:03,257 INFO L158 Benchmark]: Witness Printer took 77.80ms. Allocated memory is still 237.0MB. Free memory was 148.1MB in the beginning and 142.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 05:34:03,259 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.77ms. Allocated memory is still 163.6MB. Free memory was 129.8MB in the beginning and 120.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.73ms. Allocated memory is still 163.6MB. Free memory was 120.4MB in the beginning and 118.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.08ms. Allocated memory is still 163.6MB. Free memory was 118.3MB in the beginning and 116.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.38ms. Allocated memory is still 163.6MB. Free memory was 116.2MB in the beginning and 102.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8411.91ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 101.6MB in the beginning and 148.1MB in the end (delta: -46.6MB). Peak memory consumption was 111.6MB. Max. memory is 16.1GB. * Witness Printer took 77.80ms. Allocated memory is still 237.0MB. Free memory was 148.1MB in the beginning and 142.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: 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, 27 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 12, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 388 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 381 mSDsluCounter, 1322 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1043 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1191 IncrementalHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 279 mSDtfsCounter, 1191 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 757 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=11, InterpolantAutomatonStates: 124, 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, 12 MinimizatonAttempts, 85 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 16 PreInvPairs, 40 NumberOfFragments, 129 HoareAnnotationTreeSize, 16 FomulaSimplifications, 3975 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 267 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 690 NumberOfCodeBlocks, 592 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 925 ConstructedInterpolants, 0 QuantifiedInterpolants, 2317 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1100 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 1926/2296 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 6 specifications checked. All of them hold - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: ((((((((10 == len) && (i == 3)) || ((10 == len) && (i == 1))) || ((i == 2) && (10 == len))) || (((10 == len) && (5 <= i)) && (i <= 2147483642))) || ((10 == len) && (i == 4))) || ((10 == len) && (i == 0))) || (((i <= 2147483646) && (10 == len)) && (9 <= i))) - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: (((((0 < i) || (i == 0)) && (i <= 2147483647)) && (10 <= len)) && (j <= 2147483648)) RESULT: Ultimate proved your program to be correct! [2023-11-29 05:34:03,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd6d037f-2acf-433d-9313-461aff0e4199/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