./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-rc-imon--32_7a--a9e7fb5.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-rc-imon--32_7a--a9e7fb5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E --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 64bit --witnessprinter.graph.data.programhash a144e67358770d817e8896a5093cf08ec8864b710d6c7a1b2eee79bf2dd9e821 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:40:38,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:40:38,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-13 23:40:38,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:40:38,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:40:38,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:40:38,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:40:38,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:40:38,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:40:38,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:40:38,644 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:40:38,644 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:40:38,644 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:40:38,644 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:40:38,644 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:40:38,644 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:40:38,644 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:40:38,645 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:40:38,645 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:40:38,645 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:40:38,645 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:40:38,645 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:40:38,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:40:38,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:40:38,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:40:38,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:40:38,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:40:38,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:40:38,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:40:38,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:40:38,649 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:40:38,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:40:38,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:40:38,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:40:38,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:40:38,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:40:38,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:40:38,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:40:38,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:40:38,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:40:38,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:40:38,650 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:40:38,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:40:38,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:40:38,650 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:40:38,650 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:40:38,650 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a144e67358770d817e8896a5093cf08ec8864b710d6c7a1b2eee79bf2dd9e821 [2024-11-13 23:40:39,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:40:39,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:40:39,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:40:39,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:40:39,059 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:40:39,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-rc-imon--32_7a--a9e7fb5.i Unable to find full path for "g++" [2024-11-13 23:40:41,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:40:42,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:40:42,471 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-rc-imon--32_7a--a9e7fb5.i [2024-11-13 23:40:42,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/data/70c340cc9/c650dee1962845ed8cf58d6743744f6b/FLAG2cbafcb32 [2024-11-13 23:40:42,558 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/data/70c340cc9/c650dee1962845ed8cf58d6743744f6b [2024-11-13 23:40:42,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:40:42,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:40:42,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:40:42,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:40:42,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:40:42,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:40:42" (1/1) ... [2024-11-13 23:40:42,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27274c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:42, skipping insertion in model container [2024-11-13 23:40:42,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:40:42" (1/1) ... [2024-11-13 23:40:42,708 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:40:44,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:40:44,837 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:40:44,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3253] [2024-11-13 23:40:44,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3260] [2024-11-13 23:40:44,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [3267] [2024-11-13 23:40:44,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3300] [2024-11-13 23:40:44,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3303] [2024-11-13 23:40:44,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3306] [2024-11-13 23:40:44,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3309] [2024-11-13 23:40:45,070 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3993] [2024-11-13 23:40:45,071 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3997] [2024-11-13 23:40:45,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [4020] [2024-11-13 23:40:45,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [4025] [2024-11-13 23:40:45,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [4030] [2024-11-13 23:40:45,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [4035] [2024-11-13 23:40:45,162 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4494] [2024-11-13 23:40:45,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:40:45,560 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:40:45,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45 WrapperNode [2024-11-13 23:40:45,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:40:45,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:40:45,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:40:45,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:40:45,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:45,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:45,915 INFO L138 Inliner]: procedures = 240, calls = 2407, calls flagged for inlining = 114, calls inlined = 65, statements flattened = 2820 [2024-11-13 23:40:45,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:40:45,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:40:45,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:40:45,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:40:45,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:45,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:45,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:45,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:46,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:46,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:46,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:46,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:46,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:40:46,179 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:40:46,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:40:46,179 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:40:46,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (1/1) ... [2024-11-13 23:40:46,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:40:46,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:40:46,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:40:46,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:40:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2024-11-13 23:40:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2024-11-13 23:40:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-13 23:40:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-13 23:40:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-13 23:40:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-13 23:40:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2024-11-13 23:40:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2024-11-13 23:40:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-13 23:40:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-13 23:40:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2024-11-13 23:40:46,283 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2024-11-13 23:40:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-13 23:40:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-13 23:40:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2024-11-13 23:40:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2024-11-13 23:40:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2024-11-13 23:40:46,285 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2024-11-13 23:40:46,285 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2024-11-13 23:40:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2024-11-13 23:40:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-13 23:40:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-13 23:40:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-13 23:40:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-13 23:40:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2024-11-13 23:40:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2024-11-13 23:40:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2024-11-13 23:40:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2024-11-13 23:40:46,287 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-13 23:40:46,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-13 23:40:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-13 23:40:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-13 23:40:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2024-11-13 23:40:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2024-11-13 23:40:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:40:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2024-11-13 23:40:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2024-11-13 23:40:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 23:40:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2024-11-13 23:40:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2024-11-13 23:40:46,288 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-13 23:40:46,288 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-13 23:40:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:40:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 23:40:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-13 23:40:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-13 23:40:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-13 23:40:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-13 23:40:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-13 23:40:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-13 23:40:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-13 23:40:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-13 23:40:46,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-13 23:40:46,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-13 23:40:46,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2024-11-13 23:40:46,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2024-11-13 23:40:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2024-11-13 23:40:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2024-11-13 23:40:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2024-11-13 23:40:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2024-11-13 23:40:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-11-13 23:40:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-11-13 23:40:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-13 23:40:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2024-11-13 23:40:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2024-11-13 23:40:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-13 23:40:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-13 23:40:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-13 23:40:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-13 23:40:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-13 23:40:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2024-11-13 23:40:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2024-11-13 23:40:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2024-11-13 23:40:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2024-11-13 23:40:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:40:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2024-11-13 23:40:46,296 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2024-11-13 23:40:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-13 23:40:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-13 23:40:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-13 23:40:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-13 23:40:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-13 23:40:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-13 23:40:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2024-11-13 23:40:46,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2024-11-13 23:40:46,298 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-13 23:40:46,298 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-13 23:40:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:40:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2024-11-13 23:40:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2024-11-13 23:40:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2024-11-13 23:40:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2024-11-13 23:40:46,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-13 23:40:46,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-13 23:40:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2024-11-13 23:40:46,300 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2024-11-13 23:40:46,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 23:40:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2024-11-13 23:40:46,301 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2024-11-13 23:40:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2024-11-13 23:40:46,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2024-11-13 23:40:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:40:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 23:40:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-13 23:40:46,301 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-13 23:40:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2024-11-13 23:40:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2024-11-13 23:40:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-13 23:40:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-13 23:40:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2024-11-13 23:40:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2024-11-13 23:40:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2024-11-13 23:40:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2024-11-13 23:40:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2024-11-13 23:40:46,303 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2024-11-13 23:40:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:40:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2024-11-13 23:40:46,304 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2024-11-13 23:40:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:40:46,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:40:47,109 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:40:47,113 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:40:59,510 INFO L? ?]: Removed 806 outVars from TransFormulas that were not future-live. [2024-11-13 23:40:59,510 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:41:00,883 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:41:00,884 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 23:41:00,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:41:00 BoogieIcfgContainer [2024-11-13 23:41:00,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:41:00,887 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:41:00,887 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:41:00,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:41:00,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:40:42" (1/3) ... [2024-11-13 23:41:00,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7f37b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:41:00, skipping insertion in model container [2024-11-13 23:41:00,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:40:45" (2/3) ... [2024-11-13 23:41:00,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7f37b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:41:00, skipping insertion in model container [2024-11-13 23:41:00,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:41:00" (3/3) ... [2024-11-13 23:41:00,896 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-rc-imon--32_7a--a9e7fb5.i [2024-11-13 23:41:00,916 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:41:00,920 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG m0_drivers-media-rc-imon--32_7a--a9e7fb5.i that has 53 procedures, 677 locations, 1 initial locations, 6 loop locations, and 18 error locations. [2024-11-13 23:41:01,034 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:41:01,053 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@23378e8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:41:01,054 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-13 23:41:01,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 677 states, 393 states have (on average 1.3078880407124682) internal successors, (514), 428 states have internal predecessors, (514), 213 states have call successors, (213), 52 states have call predecessors, (213), 52 states have return successors, (213), 212 states have call predecessors, (213), 213 states have call successors, (213) [2024-11-13 23:41:01,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 23:41:01,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:41:01,086 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 23:41:01,086 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:41:01,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:41:01,093 INFO L85 PathProgramCache]: Analyzing trace with hash 476096496, now seen corresponding path program 1 times [2024-11-13 23:41:01,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:41:01,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095955472] [2024-11-13 23:41:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:41:01,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:42:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:42:13,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:42:13,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095955472] [2024-11-13 23:42:13,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095955472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:42:13,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:42:13,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:42:13,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747555124] [2024-11-13 23:42:13,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:42:13,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:42:13,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:42:13,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:42:13,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:42:13,308 INFO L87 Difference]: Start difference. First operand has 677 states, 393 states have (on average 1.3078880407124682) internal successors, (514), 428 states have internal predecessors, (514), 213 states have call successors, (213), 52 states have call predecessors, (213), 52 states have return successors, (213), 212 states have call predecessors, (213), 213 states have call successors, (213) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:42:15,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:42:18,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:42:18,499 INFO L93 Difference]: Finished difference Result 1376 states and 1943 transitions. [2024-11-13 23:42:18,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:42:18,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 34 [2024-11-13 23:42:18,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:42:18,520 INFO L225 Difference]: With dead ends: 1376 [2024-11-13 23:42:18,521 INFO L226 Difference]: Without dead ends: 681 [2024-11-13 23:42:18,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:42:18,533 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 247 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:42:18,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1332 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 23:42:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-13 23:42:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 681. [2024-11-13 23:42:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 404 states have (on average 1.2846534653465347) internal successors, (519), 429 states have internal predecessors, (519), 210 states have call successors, (210), 51 states have call predecessors, (210), 51 states have return successors, (210), 209 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-13 23:42:18,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 939 transitions. [2024-11-13 23:42:18,673 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 939 transitions. Word has length 34 [2024-11-13 23:42:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:42:18,674 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 939 transitions. [2024-11-13 23:42:18,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 23:42:18,675 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 939 transitions. [2024-11-13 23:42:18,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 23:42:18,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:18,680 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 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, 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] [2024-11-13 23:42:18,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:42:18,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting imon_find_endpointsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:42:18,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1555324111, now seen corresponding path program 1 times [2024-11-13 23:42:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:42:18,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948199281] [2024-11-13 23:42:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:18,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:43:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:43:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 23:43:24,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:43:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948199281] [2024-11-13 23:43:24,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948199281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:43:24,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:43:24,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:43:24,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520798720] [2024-11-13 23:43:24,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:43:24,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:43:24,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:43:24,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:43:24,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:43:24,728 INFO L87 Difference]: Start difference. First operand 681 states and 939 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 23:43:26,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:43:29,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:43:31,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:43:31,940 INFO L93 Difference]: Finished difference Result 698 states and 965 transitions. [2024-11-13 23:43:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:43:31,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 92 [2024-11-13 23:43:31,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:43:31,949 INFO L225 Difference]: With dead ends: 698 [2024-11-13 23:43:31,949 INFO L226 Difference]: Without dead ends: 696 [2024-11-13 23:43:31,950 INFO L431 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 [2024-11-13 23:43:31,952 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 11 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:43:31,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1623 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2024-11-13 23:43:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-13 23:43:31,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2024-11-13 23:43:31,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 415 states have (on average 1.2891566265060241) internal successors, (535), 440 states have internal predecessors, (535), 214 states have call successors, (214), 51 states have call predecessors, (214), 51 states have return successors, (214), 213 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-13 23:43:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 963 transitions. [2024-11-13 23:43:32,003 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 963 transitions. Word has length 92 [2024-11-13 23:43:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:43:32,004 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 963 transitions. [2024-11-13 23:43:32,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 23:43:32,004 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 963 transitions. [2024-11-13 23:43:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 23:43:32,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:43:32,009 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2024-11-13 23:43:32,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:43:32,009 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting imon_find_endpointsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:43:32,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:43:32,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1195628892, now seen corresponding path program 1 times [2024-11-13 23:43:32,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:43:32,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930769567] [2024-11-13 23:43:32,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:43:32,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:32,293 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 23:44:32,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:32,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930769567] [2024-11-13 23:44:32,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930769567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:32,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027635498] [2024-11-13 23:44:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:32,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:32,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:32,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:32,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:45:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:36,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 6537 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:45:36,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 23:45:36,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:36,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027635498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:36,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:45:36,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-13 23:45:36,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573711253] [2024-11-13 23:45:36,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:36,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:45:36,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:36,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:45:36,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:45:36,960 INFO L87 Difference]: Start difference. First operand 696 states and 963 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 23:45:39,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:41,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:43,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 23:45:45,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:45,959 INFO L93 Difference]: Finished difference Result 696 states and 963 transitions. [2024-11-13 23:45:45,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:45:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 97 [2024-11-13 23:45:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:45,966 INFO L225 Difference]: With dead ends: 696 [2024-11-13 23:45:45,967 INFO L226 Difference]: Without dead ends: 695 [2024-11-13 23:45:45,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:45:45,969 INFO L432 NwaCegarLoop]: 826 mSDtfsCounter, 22 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:45,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1633 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 199 Invalid, 3 Unknown, 0 Unchecked, 8.9s Time] [2024-11-13 23:45:45,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-13 23:45:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2024-11-13 23:45:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 415 states have (on average 1.2867469879518072) internal successors, (534), 439 states have internal predecessors, (534), 214 states have call successors, (214), 51 states have call predecessors, (214), 51 states have return successors, (214), 213 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-13 23:45:46,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 962 transitions. [2024-11-13 23:45:46,016 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 962 transitions. Word has length 97 [2024-11-13 23:45:46,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:46,017 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 962 transitions. [2024-11-13 23:45:46,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-13 23:45:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 962 transitions. [2024-11-13 23:45:46,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 23:45:46,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:46,021 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2024-11-13 23:45:46,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:45:46,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:46,222 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting imon_find_endpointsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:45:46,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:46,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1590209609, now seen corresponding path program 1 times [2024-11-13 23:45:46,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:46,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370234561] [2024-11-13 23:45:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:46,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 23:46:40,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:40,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370234561] [2024-11-13 23:46:40,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370234561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:40,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699943696] [2024-11-13 23:46:40,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:40,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:40,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:40,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:40,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e820bb8-912e-4349-a4ef-077fd1ddbabd/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:47:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:35,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 6538 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:47:35,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:35,329 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 23:47:35,329 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:47:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 23:47:36,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699943696] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:47:36,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [683409566] [2024-11-13 23:47:36,247 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2024-11-13 23:47:36,247 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:47:36,251 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:47:36,258 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:47:36,258 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:55:17,248 WARN L286 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 7571 DAG size of output: 7571 (called from [L 210] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2024-11-13 23:55:28,745 WARN L286 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 7571 DAG size of output: 7571 (called from [L 210] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)