./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:31:45,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:31:45,209 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 13:31:45,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:31:45,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:31:45,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:31:45,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:31:45,240 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:31:45,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:31:45,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:31:45,242 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:31:45,243 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:31:45,244 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:31:45,244 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:31:45,245 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:31:45,245 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:31:45,246 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:31:45,246 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:31:45,247 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:31:45,248 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:31:45,248 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:31:45,249 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:31:45,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:31:45,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:31:45,251 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:31:45,252 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:31:45,252 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:31:45,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:31:45,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:31:45,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:31:45,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:31:45,254 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 13:31:45,254 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 13:31:45,255 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:31:45,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:31:45,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:31:45,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:31:45,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:31:45,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:31:45,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:31:45,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:31:45,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:31:45,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:31:45,257 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:31:45,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:31:45,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:31:45,258 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:31:45,258 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:31:45,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:31:45,258 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2023-12-02 13:31:45,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:31:45,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:31:45,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:31:45,514 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:31:45,515 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:31:45,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-12-02 13:31:48,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:31:48,596 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:31:48,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-12-02 13:31:48,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/data/9ccd101c1/c79d093b72cf4bed9d2daa8a76cdf440/FLAGfe662544b [2023-12-02 13:31:48,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/data/9ccd101c1/c79d093b72cf4bed9d2daa8a76cdf440 [2023-12-02 13:31:48,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:31:48,642 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:31:48,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:31:48,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:31:48,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:31:48,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ecb700c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:48, skipping insertion in model container [2023-12-02 13:31:48,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:31:48" (1/1) ... [2023-12-02 13:31:48,710 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:31:50,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:31:50,061 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:31:50,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:31:50,454 WARN L675 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:31:50,462 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:31:50,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50 WrapperNode [2023-12-02 13:31:50,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:31:50,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:31:50,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:31:50,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:31:50,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,602 INFO L138 Inliner]: procedures = 474, calls = 840, calls flagged for inlining = 55, calls inlined = 39, statements flattened = 1132 [2023-12-02 13:31:50,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:31:50,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:31:50,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:31:50,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:31:50,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:31:50,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:31:50,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:31:50,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:31:50,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (1/1) ... [2023-12-02 13:31:50,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:31:50,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:31:50,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:31:50,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:31:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-12-02 13:31:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-12-02 13:31:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 13:31:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-12-02 13:31:50,766 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 13:31:50,766 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 13:31:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:31:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-12-02 13:31:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-12-02 13:31:50,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 13:31:50,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-12-02 13:31:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-12-02 13:31:50,768 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-12-02 13:31:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 13:31:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 13:31:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 13:31:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-12-02 13:31:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-12-02 13:31:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:31:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 13:31:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 13:31:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 13:31:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-12-02 13:31:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-12-02 13:31:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-12-02 13:31:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-12-02 13:31:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-12-02 13:31:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-12-02 13:31:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:31:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:31:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-12-02 13:31:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-12-02 13:31:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 13:31:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:31:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:31:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-12-02 13:31:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-12-02 13:31:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:31:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 13:31:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-12-02 13:31:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-12-02 13:31:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-12-02 13:31:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-12-02 13:31:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-12-02 13:31:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-12-02 13:31:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 13:31:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 13:31:50,772 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 13:31:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-12-02 13:31:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-12-02 13:31:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-12-02 13:31:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-12-02 13:31:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-12-02 13:31:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-12-02 13:31:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-12-02 13:31:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-12-02 13:31:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-12-02 13:31:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-12-02 13:31:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 13:31:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-12-02 13:31:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-12-02 13:31:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-12-02 13:31:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-12-02 13:31:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-12-02 13:31:50,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-12-02 13:31:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-12-02 13:31:50,775 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-12-02 13:31:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 13:31:50,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 13:31:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:31:51,044 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:31:51,046 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:31:52,569 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:31:52,942 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:31:52,942 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 13:31:52,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:52 BoogieIcfgContainer [2023-12-02 13:31:52,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:31:52,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:31:52,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:31:52,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:31:52,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:31:48" (1/3) ... [2023-12-02 13:31:52,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ab7f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:31:52, skipping insertion in model container [2023-12-02 13:31:52,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:31:50" (2/3) ... [2023-12-02 13:31:52,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ab7f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:31:52, skipping insertion in model container [2023-12-02 13:31:52,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:31:52" (3/3) ... [2023-12-02 13:31:52,952 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2023-12-02 13:31:52,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:31:52,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2023-12-02 13:31:53,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:31:53,035 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=FINITE_AUTOMATA, 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;@3569c09f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:31:53,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-12-02 13:31:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 185 states have (on average 1.427027027027027) internal successors, (264), 212 states have internal predecessors, (264), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-02 13:31:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 13:31:53,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:31:53,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:31:53,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-12-02 13:31:53,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:31:53,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1219343088, now seen corresponding path program 1 times [2023-12-02 13:31:53,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:31:53,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415340634] [2023-12-02 13:31:53,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:53,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:31:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:53,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:31:53,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:31:53,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415340634] [2023-12-02 13:31:53,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415340634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:31:53,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:31:53,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:31:53,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129735527] [2023-12-02 13:31:53,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:31:53,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:31:53,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:31:53,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:31:53,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:31:53,630 INFO L87 Difference]: Start difference. First operand has 311 states, 185 states have (on average 1.427027027027027) internal successors, (264), 212 states have internal predecessors, (264), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-12-02 13:31:54,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:31:54,703 INFO L93 Difference]: Finished difference Result 622 states and 842 transitions. [2023-12-02 13:31:54,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:31:54,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 7 [2023-12-02 13:31:54,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:31:54,717 INFO L225 Difference]: With dead ends: 622 [2023-12-02 13:31:54,717 INFO L226 Difference]: Without dead ends: 311 [2023-12-02 13:31:54,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:31:54,727 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 7 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:31:54,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1062 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 13:31:54,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-12-02 13:31:54,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 307. [2023-12-02 13:31:54,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 186 states have (on average 1.403225806451613) internal successors, (261), 211 states have internal predecessors, (261), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 13:31:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 412 transitions. [2023-12-02 13:31:54,795 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 412 transitions. Word has length 7 [2023-12-02 13:31:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:31:54,797 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 412 transitions. [2023-12-02 13:31:54,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-12-02 13:31:54,797 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 412 transitions. [2023-12-02 13:31:54,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 13:31:54,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:31:54,798 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:31:54,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:31:54,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-12-02 13:31:54,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:31:54,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1383075102, now seen corresponding path program 1 times [2023-12-02 13:31:54,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:31:54,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033300853] [2023-12-02 13:31:54,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:54,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:31:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:31:55,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:31:55,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033300853] [2023-12-02 13:31:55,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033300853] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:31:55,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354357809] [2023-12-02 13:31:55,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:55,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:31:55,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:31:55,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:31:55,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:31:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:55,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:31:55,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:31:55,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:31:55,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:31:55,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354357809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:31:55,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:31:55,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 13:31:55,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718401131] [2023-12-02 13:31:55,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:31:55,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:31:55,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:31:55,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:31:55,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-02 13:31:55,565 INFO L87 Difference]: Start difference. First operand 307 states and 412 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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) [2023-12-02 13:31:56,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:31:56,838 INFO L93 Difference]: Finished difference Result 311 states and 416 transitions. [2023-12-02 13:31:56,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:31:56,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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 [2023-12-02 13:31:56,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:31:56,842 INFO L225 Difference]: With dead ends: 311 [2023-12-02 13:31:56,843 INFO L226 Difference]: Without dead ends: 310 [2023-12-02 13:31:56,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-02 13:31:56,845 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 9 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:31:56,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1386 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 13:31:56,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-12-02 13:31:56,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 306. [2023-12-02 13:31:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 186 states have (on average 1.3978494623655915) internal successors, (260), 210 states have internal predecessors, (260), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 13:31:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 411 transitions. [2023-12-02 13:31:56,877 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 411 transitions. Word has length 10 [2023-12-02 13:31:56,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:31:56,877 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 411 transitions. [2023-12-02 13:31:56,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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) [2023-12-02 13:31:56,877 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 411 transitions. [2023-12-02 13:31:56,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 13:31:56,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:31:56,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:31:56,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:31:57,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-02 13:31:57,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-12-02 13:31:57,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:31:57,080 INFO L85 PathProgramCache]: Analyzing trace with hash 74406211, now seen corresponding path program 1 times [2023-12-02 13:31:57,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:31:57,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816830109] [2023-12-02 13:31:57,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:57,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:31:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:57,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:31:57,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:31:57,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816830109] [2023-12-02 13:31:57,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816830109] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:31:57,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700862710] [2023-12-02 13:31:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:57,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:31:57,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:31:57,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:31:57,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:31:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:57,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:31:57,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:31:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:31:57,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:31:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:31:57,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700862710] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:31:57,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2084987173] [2023-12-02 13:31:57,776 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2023-12-02 13:31:57,776 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:31:57,779 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:31:57,783 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:31:57,784 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:32:20,861 INFO L197 IcfgInterpreter]: Interpreting procedure spin_lock_init with input of size 761 for LOIs [2023-12-02 13:32:21,760 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:32:32,154 WARN L293 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 751 DAG size of output: 687 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:32:43,185 WARN L293 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 761 DAG size of output: 697 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:33:40,299 WARN L293 SmtUtils]: Spent 53.72s on a formula simplification. DAG size of input: 795 DAG size of output: 731 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:33:57,529 WARN L293 SmtUtils]: Spent 12.76s on a formula simplification. DAG size of input: 740 DAG size of output: 676 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:34:00,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2084987173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:34:00,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:34:00,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5] total 18 [2023-12-02 13:34:00,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674672158] [2023-12-02 13:34:00,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:34:00,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 13:34:00,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:34:00,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 13:34:00,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=242, Unknown=3, NotChecked=0, Total=306 [2023-12-02 13:34:00,349 INFO L87 Difference]: Start difference. First operand 306 states and 411 transitions. Second operand has 10 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2023-12-02 13:34:04,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:34:07,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:34:10,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:34:12,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:34:14,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:34:15,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:34:17,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:34:31,184 WARN L293 SmtUtils]: Spent 11.90s on a formula simplification that was a NOOP. DAG size: 678 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:34:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:34:40,940 INFO L93 Difference]: Finished difference Result 308 states and 412 transitions. [2023-12-02 13:34:40,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 13:34:40,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 11 [2023-12-02 13:34:40,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:34:40,944 INFO L225 Difference]: With dead ends: 308 [2023-12-02 13:34:40,944 INFO L226 Difference]: Without dead ends: 306 [2023-12-02 13:34:40,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 111.9s TimeCoverageRelationStatistics Valid=86, Invalid=331, Unknown=3, NotChecked=0, Total=420 [2023-12-02 13:34:40,946 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 9 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:34:40,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1810 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1009 Invalid, 5 Unknown, 0 Unchecked, 27.2s Time] [2023-12-02 13:34:40,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-02 13:34:40,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-12-02 13:34:40,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 187 states have (on average 1.3850267379679144) internal successors, (259), 209 states have internal predecessors, (259), 76 states have call successors, (76), 27 states have call predecessors, (76), 27 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 13:34:40,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 410 transitions. [2023-12-02 13:34:40,985 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 410 transitions. Word has length 11 [2023-12-02 13:34:40,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:34:40,985 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 410 transitions. [2023-12-02 13:34:40,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2023-12-02 13:34:40,986 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 410 transitions. [2023-12-02 13:34:40,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 13:34:40,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:34:40,986 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:34:40,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:34:41,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-12-02 13:34:41,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-12-02 13:34:41,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:34:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash 74345156, now seen corresponding path program 1 times [2023-12-02 13:34:41,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:34:41,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845480691] [2023-12-02 13:34:41,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:34:41,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:34:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:34:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:34:41,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:34:41,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845480691] [2023-12-02 13:34:41,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845480691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:34:41,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:34:41,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:34:41,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165650226] [2023-12-02 13:34:41,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:34:41,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:34:41,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:34:41,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:34:41,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:34:41,329 INFO L87 Difference]: Start difference. First operand 306 states and 410 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-12-02 13:34:42,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:34:42,204 INFO L93 Difference]: Finished difference Result 306 states and 410 transitions. [2023-12-02 13:34:42,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:34:42,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 11 [2023-12-02 13:34:42,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:34:42,207 INFO L225 Difference]: With dead ends: 306 [2023-12-02 13:34:42,207 INFO L226 Difference]: Without dead ends: 305 [2023-12-02 13:34:42,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:34:42,208 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 0 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:34:42,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 690 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 13:34:42,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-12-02 13:34:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 303. [2023-12-02 13:34:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 185 states have (on average 1.3837837837837839) internal successors, (256), 206 states have internal predecessors, (256), 76 states have call successors, (76), 27 states have call predecessors, (76), 27 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 13:34:42,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 407 transitions. [2023-12-02 13:34:42,235 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 407 transitions. Word has length 11 [2023-12-02 13:34:42,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:34:42,235 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 407 transitions. [2023-12-02 13:34:42,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-12-02 13:34:42,235 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 407 transitions. [2023-12-02 13:34:42,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 13:34:42,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:34:42,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:34:42,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 13:34:42,236 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-12-02 13:34:42,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:34:42,237 INFO L85 PathProgramCache]: Analyzing trace with hash 984873154, now seen corresponding path program 1 times [2023-12-02 13:34:42,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:34:42,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479449746] [2023-12-02 13:34:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:34:42,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:34:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:34:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:34:42,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:34:42,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479449746] [2023-12-02 13:34:42,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479449746] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:34:42,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573433205] [2023-12-02 13:34:42,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:34:42,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:34:42,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:34:42,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:34:42,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:34:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:34:42,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:34:42,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:34:42,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:34:42,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:34:42,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:34:42,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573433205] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:34:42,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [970119644] [2023-12-02 13:34:42,872 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2023-12-02 13:34:42,872 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:34:42,873 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:34:42,873 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:34:42,873 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:35:09,186 INFO L197 IcfgInterpreter]: Interpreting procedure printk with input of size 182 for LOIs [2023-12-02 13:35:09,237 INFO L197 IcfgInterpreter]: Interpreting procedure spin_lock_init with input of size 761 for LOIs [2023-12-02 13:35:10,212 INFO L197 IcfgInterpreter]: Interpreting procedure zf_readw with input of size 180 for LOIs [2023-12-02 13:35:10,769 INFO L197 IcfgInterpreter]: Interpreting procedure outb with input of size 183 for LOIs [2023-12-02 13:35:10,848 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:35:21,704 WARN L293 SmtUtils]: Spent 10.61s on a formula simplification. DAG size of input: 751 DAG size of output: 687 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:35:33,033 WARN L293 SmtUtils]: Spent 11.05s on a formula simplification. DAG size of input: 761 DAG size of output: 697 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:36:25,125 WARN L293 SmtUtils]: Spent 48.83s on a formula simplification. DAG size of input: 795 DAG size of output: 731 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:36:39,952 WARN L293 SmtUtils]: Spent 11.08s on a formula simplification. DAG size of input: 740 DAG size of output: 676 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:37:14,118 WARN L293 SmtUtils]: Spent 33.20s on a formula simplification. DAG size of input: 768 DAG size of output: 687 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:37:29,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [970119644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:37:29,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:37:29,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [5, 5, 5] total 28 [2023-12-02 13:37:29,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013621638] [2023-12-02 13:37:29,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:37:29,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 13:37:29,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:37:29,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 13:37:29,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=668, Unknown=3, NotChecked=0, Total=756 [2023-12-02 13:37:29,791 INFO L87 Difference]: Start difference. First operand 303 states and 407 transitions. Second operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 13:37:34,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:37:39,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:37:45,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:37:47,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:37:49,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:37:51,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:37:53,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:37:54,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:37:56,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:37:58,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:38:00,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:38:01,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:38:24,415 WARN L293 SmtUtils]: Spent 20.77s on a formula simplification. DAG size of input: 724 DAG size of output: 717 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:38:27,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:38:29,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:38:31,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:39:06,042 WARN L293 SmtUtils]: Spent 29.65s on a formula simplification. DAG size of input: 724 DAG size of output: 722 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:39:24,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:39:24,839 INFO L93 Difference]: Finished difference Result 602 states and 809 transitions. [2023-12-02 13:39:24,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 13:39:24,840 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2023-12-02 13:39:24,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:39:24,842 INFO L225 Difference]: With dead ends: 602 [2023-12-02 13:39:24,842 INFO L226 Difference]: Without dead ends: 315 [2023-12-02 13:39:24,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 193.5s TimeCoverageRelationStatistics Valid=101, Invalid=766, Unknown=3, NotChecked=0, Total=870 [2023-12-02 13:39:24,844 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 14 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 2003 mSolverCounterSat, 7 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2003 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:39:24,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3211 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2003 Invalid, 10 Unknown, 0 Unchecked, 60.4s Time] [2023-12-02 13:39:24,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-12-02 13:39:24,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 314. [2023-12-02 13:39:24,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 193 states have (on average 1.3575129533678756) internal successors, (262), 213 states have internal predecessors, (262), 77 states have call successors, (77), 30 states have call predecessors, (77), 30 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-02 13:39:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 415 transitions. [2023-12-02 13:39:24,892 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 415 transitions. Word has length 25 [2023-12-02 13:39:24,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:39:24,892 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 415 transitions. [2023-12-02 13:39:24,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 13:39:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 415 transitions. [2023-12-02 13:39:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 13:39:24,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:39:24,894 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:39:24,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:39:25,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:39:25,095 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-12-02 13:39:25,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:39:25,096 INFO L85 PathProgramCache]: Analyzing trace with hash 237876336, now seen corresponding path program 1 times [2023-12-02 13:39:25,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:39:25,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091233754] [2023-12-02 13:39:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:25,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:39:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:25,329 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 13:39:25,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:39:25,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091233754] [2023-12-02 13:39:25,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091233754] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:39:25,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468515868] [2023-12-02 13:39:25,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:25,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:39:25,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:39:25,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:39:25,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:39:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:25,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:39:25,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:39:25,710 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 13:39:25,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:39:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 13:39:25,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468515868] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:39:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1599161507] [2023-12-02 13:39:25,762 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2023-12-02 13:39:25,762 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:39:25,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:39:25,763 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:39:25,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:39:49,802 INFO L197 IcfgInterpreter]: Interpreting procedure printk with input of size 182 for LOIs [2023-12-02 13:39:49,854 INFO L197 IcfgInterpreter]: Interpreting procedure spin_lock_init with input of size 761 for LOIs [2023-12-02 13:39:50,798 INFO L197 IcfgInterpreter]: Interpreting procedure zf_readw with input of size 180 for LOIs [2023-12-02 13:39:51,353 INFO L197 IcfgInterpreter]: Interpreting procedure outb with input of size 183 for LOIs [2023-12-02 13:39:51,403 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:40:02,478 WARN L293 SmtUtils]: Spent 10.83s on a formula simplification. DAG size of input: 751 DAG size of output: 687 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:40:13,976 WARN L293 SmtUtils]: Spent 11.20s on a formula simplification. DAG size of input: 761 DAG size of output: 697 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:41:07,294 WARN L293 SmtUtils]: Spent 50.01s on a formula simplification. DAG size of input: 795 DAG size of output: 731 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:41:21,473 WARN L293 SmtUtils]: Spent 11.28s on a formula simplification. DAG size of input: 740 DAG size of output: 676 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:41:39,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1599161507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:41:39,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:41:39,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [5, 5, 5] total 29 [2023-12-02 13:41:39,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877455583] [2023-12-02 13:41:39,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:41:39,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 13:41:39,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:41:39,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 13:41:39,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=716, Unknown=3, NotChecked=0, Total=812 [2023-12-02 13:41:39,120 INFO L87 Difference]: Start difference. First operand 314 states and 415 transitions. Second operand has 21 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 14 states have internal predecessors, (29), 5 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2023-12-02 13:41:45,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:41:49,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:41:56,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:41:59,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:01,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:03,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:04,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:06,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:08,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:09,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:10,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:13,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:15,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:35,417 WARN L293 SmtUtils]: Spent 15.84s on a formula simplification. DAG size of input: 715 DAG size of output: 713 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:42:37,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:42,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:42:45,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:42:45,017 INFO L93 Difference]: Finished difference Result 314 states and 415 transitions. [2023-12-02 13:42:45,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 13:42:45,018 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 14 states have internal predecessors, (29), 5 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) Word has length 46 [2023-12-02 13:42:45,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:42:45,019 INFO L225 Difference]: With dead ends: 314 [2023-12-02 13:42:45,019 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 13:42:45,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 126.9s TimeCoverageRelationStatistics Valid=101, Invalid=766, Unknown=3, NotChecked=0, Total=870 [2023-12-02 13:42:45,021 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:42:45,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 317 Invalid, 7 Unknown, 0 Unchecked, 46.7s Time] [2023-12-02 13:42:45,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 13:42:45,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 13:42:45,022 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) [2023-12-02 13:42:45,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 13:42:45,023 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2023-12-02 13:42:45,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:42:45,023 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 13:42:45,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 14 states have internal predecessors, (29), 5 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2023-12-02 13:42:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 13:42:45,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 13:42:45,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location zf_pingErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 21 remaining) [2023-12-02 13:42:45,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location zf_pingErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2023-12-02 13:42:45,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2023-12-02 13:42:45,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location zf_readwErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2023-12-02 13:42:45,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2023-12-02 13:42:45,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~$Pointer$~X~$Pointer$~TO~intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2023-12-02 13:42:45,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~$Pointer$~X~$Pointer$~TO~intErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2023-12-02 13:42:45,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~$Pointer$~X~$Pointer$~TO~intErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2023-12-02 13:42:45,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~$Pointer$~X~$Pointer$~TO~intErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2023-12-02 13:42:45,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~$Pointer$~X~$Pointer$~TO~intErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2023-12-02 13:42:45,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2023-12-02 13:42:45,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2023-12-02 13:42:45,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2023-12-02 13:42:45,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2023-12-02 13:42:45,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2023-12-02 13:42:45,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2023-12-02 13:42:45,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2023-12-02 13:42:45,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2023-12-02 13:42:45,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2023-12-02 13:42:45,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2023-12-02 13:42:45,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2023-12-02 13:42:45,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:42:45,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9043e670-ec8b-4a3b-b59b-2e3b93f8f7df/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 13:42:45,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 13:44:44,062 WARN L293 SmtUtils]: Spent 1.94m on a formula simplification. DAG size of input: 1241 DAG size of output: 935 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-02 13:45:48,870 WARN L293 SmtUtils]: Spent 1.06m on a formula simplification. DAG size of input: 942 DAG size of output: 687 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter)