./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.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_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c3a88d220dbbb3b8b830b41f15ad66094bc858c7c21fc995876c56b7a27538e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:09,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:09,255 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-12 02:15:09,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:09,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:09,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:09,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:09,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:09,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:09,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:09,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:09,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:09,319 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:09,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:09,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:09,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:09,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:09,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:09,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:09,324 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:09,324 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:15:09,325 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:15:09,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:09,326 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:09,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:09,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:09,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:09,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:09,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:09,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:09,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:09,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:09,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:09,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:09,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:09,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:09,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:09,332 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:09,332 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3a88d220dbbb3b8b830b41f15ad66094bc858c7c21fc995876c56b7a27538e4 [2023-11-12 02:15:09,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:09,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:09,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:09,726 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:09,727 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:09,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-rc-imon--32_7a--a9e7fb5.i [2023-11-12 02:15:12,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:13,615 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:13,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-rc-imon--32_7a--a9e7fb5.i [2023-11-12 02:15:13,658 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/data/42ac11926/c0216d3067e648b3ae805f9c8f1a45ce/FLAG24a207fc2 [2023-11-12 02:15:13,679 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/data/42ac11926/c0216d3067e648b3ae805f9c8f1a45ce [2023-11-12 02:15:13,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:13,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:13,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:13,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:13,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:13,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:13" (1/1) ... [2023-11-12 02:15:13,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@716a2485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:13, skipping insertion in model container [2023-11-12 02:15:13,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:13" (1/1) ... [2023-11-12 02:15:13,835 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:15,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:15,811 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:16,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3253] [2023-11-12 02:15:16,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3260] [2023-11-12 02:15:16,037 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [3267] [2023-11-12 02:15:16,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3300] [2023-11-12 02:15:16,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3303] [2023-11-12 02:15:16,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3306] [2023-11-12 02:15:16,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3309] [2023-11-12 02:15:16,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3993] [2023-11-12 02:15:16,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3997] [2023-11-12 02:15:16,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [4020] [2023-11-12 02:15:16,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [4025] [2023-11-12 02:15:16,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [4030] [2023-11-12 02:15:16,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [4035] [2023-11-12 02:15:16,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4494] [2023-11-12 02:15:16,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:16,434 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:16,434 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:16,442 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:16,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16 WrapperNode [2023-11-12 02:15:16,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:16,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:16,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:16,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:16,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,734 INFO L138 Inliner]: procedures = 240, calls = 2469, calls flagged for inlining = 112, calls inlined = 63, statements flattened = 2665 [2023-11-12 02:15:16,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:16,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:16,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:16,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:16,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:16,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:17,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:17,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:17,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:17,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:17,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (1/1) ... [2023-11-12 02:15:17,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:17,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:17,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:17,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-12 02:15:17,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-12 02:15:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-12 02:15:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-12 02:15:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-12 02:15:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:15:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:15:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-11-12 02:15:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-11-12 02:15:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-12 02:15:17,105 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-12 02:15:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-12 02:15:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-12 02:15:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:15:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:15:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2023-11-12 02:15:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2023-11-12 02:15:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-12 02:15:17,108 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-12 02:15:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-12 02:15:17,108 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-12 02:15:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:15:17,109 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:15:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:15:17,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:15:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-11-12 02:15:17,110 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-11-12 02:15:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-12 02:15:17,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-12 02:15:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 02:15:17,111 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 02:15:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 02:15:17,111 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 02:15:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2023-11-12 02:15:17,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2023-11-12 02:15:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:15:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-12 02:15:17,113 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-12 02:15:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:15:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-11-12 02:15:17,113 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-11-12 02:15:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-12 02:15:17,113 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-12 02:15:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:15:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:15:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:15:17,114 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:15:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:15:17,114 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:15:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:15:17,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:15:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 02:15:17,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 02:15:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-12 02:15:17,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-12 02:15:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-12 02:15:17,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-12 02:15:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-11-12 02:15:17,117 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-11-12 02:15:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-12 02:15:17,118 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-12 02:15:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-12 02:15:17,119 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-12 02:15:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:15:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-12 02:15:17,120 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-12 02:15:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-12 02:15:17,120 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-12 02:15:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:15:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 02:15:17,120 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 02:15:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-11-12 02:15:17,121 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-11-12 02:15:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-12 02:15:17,121 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-12 02:15:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:15:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-12 02:15:17,121 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-12 02:15:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 02:15:17,122 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 02:15:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-12 02:15:17,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-12 02:15:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-12 02:15:17,123 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-12 02:15:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-12 02:15:17,123 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-12 02:15:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:15:17,124 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:15:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:15:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-11-12 02:15:17,124 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-11-12 02:15:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-12 02:15:17,124 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-12 02:15:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:15:17,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:15:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2023-11-12 02:15:17,125 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2023-11-12 02:15:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:15:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-11-12 02:15:17,125 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-11-12 02:15:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-12 02:15:17,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-12 02:15:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:15:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-12 02:15:17,127 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-12 02:15:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 02:15:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-11-12 02:15:17,128 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-11-12 02:15:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-12 02:15:17,128 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-12 02:15:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2023-11-12 02:15:17,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2023-11-12 02:15:17,129 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-12 02:15:17,129 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-12 02:15:17,129 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2023-11-12 02:15:17,129 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2023-11-12 02:15:17,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:17,130 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-12 02:15:17,130 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-12 02:15:17,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:17,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:17,641 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:17,644 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:22,166 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:22,189 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:22,190 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 02:15:22,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:22 BoogieIcfgContainer [2023-11-12 02:15:22,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:22,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:22,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:22,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:22,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:13" (1/3) ... [2023-11-12 02:15:22,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ba7963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:22, skipping insertion in model container [2023-11-12 02:15:22,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:16" (2/3) ... [2023-11-12 02:15:22,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ba7963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:22, skipping insertion in model container [2023-11-12 02:15:22,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:22" (3/3) ... [2023-11-12 02:15:22,206 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-rc-imon--32_7a--a9e7fb5.i [2023-11-12 02:15:22,227 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:22,228 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-12 02:15:22,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:22,313 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@321c49f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:22,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-12 02:15:22,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 845 states, 561 states have (on average 1.3083778966131907) internal successors, (734), 593 states have internal predecessors, (734), 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) [2023-11-12 02:15:22,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 02:15:22,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:22,337 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:22,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-12 02:15:22,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:22,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1279143451, now seen corresponding path program 1 times [2023-11-12 02:15:22,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:22,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329908486] [2023-11-12 02:15:22,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:22,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:15:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:15:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:15:23,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:23,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329908486] [2023-11-12 02:15:23,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329908486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:23,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:23,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:15:23,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674739381] [2023-11-12 02:15:23,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:23,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:23,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:23,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:23,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:23,580 INFO L87 Difference]: Start difference. First operand has 845 states, 561 states have (on average 1.3083778966131907) internal successors, (734), 593 states have internal predecessors, (734), 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 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:15:25,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:25,944 INFO L93 Difference]: Finished difference Result 1730 states and 2435 transitions. [2023-11-12 02:15:25,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:15:25,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 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 44 [2023-11-12 02:15:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:25,980 INFO L225 Difference]: With dead ends: 1730 [2023-11-12 02:15:25,980 INFO L226 Difference]: Without dead ends: 877 [2023-11-12 02:15:25,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:15:25,997 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 520 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1965 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:25,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 1965 Invalid, 876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [224 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 02:15:26,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2023-11-12 02:15:26,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 845. [2023-11-12 02:15:26,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 568 states have (on average 1.2816901408450705) internal successors, (728), 590 states have internal predecessors, (728), 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) [2023-11-12 02:15:26,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1148 transitions. [2023-11-12 02:15:26,130 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1148 transitions. Word has length 44 [2023-11-12 02:15:26,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:26,131 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1148 transitions. [2023-11-12 02:15:26,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:15:26,132 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1148 transitions. [2023-11-12 02:15:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-12 02:15:26,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:26,142 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:26,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:15:26,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting imon_find_endpointsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-12 02:15:26,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:26,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1611962911, now seen corresponding path program 1 times [2023-11-12 02:15:26,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:26,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123841834] [2023-11-12 02:15:26,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:26,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:15:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:15:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:15:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-12 02:15:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:15:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:15:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:15:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:15:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:15:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:15:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:15:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:15:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:26,859 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-12 02:15:26,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:26,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123841834] [2023-11-12 02:15:26,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123841834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:26,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:26,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:26,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171310161] [2023-11-12 02:15:26,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:26,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:26,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:26,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:26,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:26,864 INFO L87 Difference]: Start difference. First operand 845 states and 1148 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:15:31,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:31,199 INFO L93 Difference]: Finished difference Result 948 states and 1306 transitions. [2023-11-12 02:15:31,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:15:31,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (18), 4 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 125 [2023-11-12 02:15:31,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:31,210 INFO L225 Difference]: With dead ends: 948 [2023-11-12 02:15:31,210 INFO L226 Difference]: Without dead ends: 946 [2023-11-12 02:15:31,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:15:31,213 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 920 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:31,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 2553 Invalid, 2446 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [775 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-12 02:15:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2023-11-12 02:15:31,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 864. [2023-11-12 02:15:31,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 583 states have (on average 1.2864493996569468) internal successors, (750), 605 states have internal predecessors, (750), 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) [2023-11-12 02:15:31,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1178 transitions. [2023-11-12 02:15:31,293 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1178 transitions. Word has length 125 [2023-11-12 02:15:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:31,294 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1178 transitions. [2023-11-12 02:15:31,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:15:31,294 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1178 transitions. [2023-11-12 02:15:31,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-12 02:15:31,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:31,305 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:31,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:15:31,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting imon_find_endpointsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-12 02:15:31,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:31,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1279043992, now seen corresponding path program 1 times [2023-11-12 02:15:31,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:31,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878120973] [2023-11-12 02:15:31,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:31,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:15:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:15:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:15:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-12 02:15:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:31,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:15:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:15:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:15:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:15:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:15:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:15:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:15:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:15:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-12 02:15:32,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:32,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878120973] [2023-11-12 02:15:32,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878120973] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:32,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484721588] [2023-11-12 02:15:32,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:32,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:32,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:32,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:32,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:15:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:33,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:15:33,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:33,135 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-12 02:15:33,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:33,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484721588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:33,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:15:33,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-12 02:15:33,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047334340] [2023-11-12 02:15:33,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:33,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:33,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:33,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:33,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:15:33,144 INFO L87 Difference]: Start difference. First operand 864 states and 1178 transitions. Second operand has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 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) [2023-11-12 02:15:33,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:33,249 INFO L93 Difference]: Finished difference Result 893 states and 1224 transitions. [2023-11-12 02:15:33,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:15:33,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 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 133 [2023-11-12 02:15:33,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:33,258 INFO L225 Difference]: With dead ends: 893 [2023-11-12 02:15:33,258 INFO L226 Difference]: Without dead ends: 892 [2023-11-12 02:15:33,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:15:33,260 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 90 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:33,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 3315 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:15:33,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2023-11-12 02:15:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 863. [2023-11-12 02:15:33,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 583 states have (on average 1.2847341337907376) internal successors, (749), 604 states have internal predecessors, (749), 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) [2023-11-12 02:15:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1177 transitions. [2023-11-12 02:15:33,323 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1177 transitions. Word has length 133 [2023-11-12 02:15:33,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:33,324 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1177 transitions. [2023-11-12 02:15:33,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 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) [2023-11-12 02:15:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1177 transitions. [2023-11-12 02:15:33,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 02:15:33,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:33,332 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:33,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 02:15:33,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-12 02:15:33,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting imon_find_endpointsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-12 02:15:33,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:33,543 INFO L85 PathProgramCache]: Analyzing trace with hash 995658483, now seen corresponding path program 1 times [2023-11-12 02:15:33,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:33,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603495024] [2023-11-12 02:15:33,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:33,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:15:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:15:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:15:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-12 02:15:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:15:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:15:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:15:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:15:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:15:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:15:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:15:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:15:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-12 02:15:34,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603495024] [2023-11-12 02:15:34,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603495024] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114918703] [2023-11-12 02:15:34,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:34,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:34,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:34,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:34,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:15:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:35,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 3680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:15:35,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-12 02:15:35,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:15:35,313 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-12 02:15:35,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114918703] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:15:35,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:15:35,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2023-11-12 02:15:35,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294452717] [2023-11-12 02:15:35,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:15:35,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:15:35,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:35,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:15:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:15:35,317 INFO L87 Difference]: Start difference. First operand 863 states and 1177 transitions. Second operand has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:15:41,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:41,917 INFO L93 Difference]: Finished difference Result 1090 states and 1534 transitions. [2023-11-12 02:15:41,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:15:41,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2023-11-12 02:15:41,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:41,927 INFO L225 Difference]: With dead ends: 1090 [2023-11-12 02:15:41,927 INFO L226 Difference]: Without dead ends: 1089 [2023-11-12 02:15:41,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:15:41,929 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 1312 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 3713 SdHoareTripleChecker+Invalid, 3893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:41,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 3713 Invalid, 3893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [905 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-12 02:15:41,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-11-12 02:15:41,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 920. [2023-11-12 02:15:41,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 628 states have (on average 1.2977707006369428) internal successors, (815), 649 states have internal predecessors, (815), 226 states have call successors, (226), 51 states have call predecessors, (226), 51 states have return successors, (226), 225 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-12 02:15:41,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1267 transitions. [2023-11-12 02:15:41,991 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1267 transitions. Word has length 134 [2023-11-12 02:15:41,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:41,992 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1267 transitions. [2023-11-12 02:15:41,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-12 02:15:41,993 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1267 transitions. [2023-11-12 02:15:41,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-12 02:15:41,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:41,996 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 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] [2023-11-12 02:15:42,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:42,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:42,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-12 02:15:42,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:42,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2016093383, now seen corresponding path program 1 times [2023-11-12 02:15:42,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:42,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768946448] [2023-11-12 02:15:42,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:42,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:15:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:15:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:15:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-12 02:15:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:15:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:15:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:15:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:15:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:15:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:15:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:15:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:15:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:15:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:43,772 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-12 02:15:43,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:43,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768946448] [2023-11-12 02:15:43,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768946448] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:43,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439516692] [2023-11-12 02:15:43,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:43,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:43,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:43,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:43,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:15:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:44,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 3759 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:15:44,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-12 02:15:44,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:44,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439516692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:44,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:15:44,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2023-11-12 02:15:44,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255664400] [2023-11-12 02:15:44,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:44,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:15:44,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:44,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:15:44,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:15:44,799 INFO L87 Difference]: Start difference. First operand 920 states and 1267 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-12 02:15:44,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:44,983 INFO L93 Difference]: Finished difference Result 1898 states and 2630 transitions. [2023-11-12 02:15:44,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:15:44,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2023-11-12 02:15:44,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:44,992 INFO L225 Difference]: With dead ends: 1898 [2023-11-12 02:15:44,992 INFO L226 Difference]: Without dead ends: 991 [2023-11-12 02:15:44,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:15:44,997 INFO L413 NwaCegarLoop]: 1117 mSDtfsCounter, 35 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:44,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2206 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:15:45,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2023-11-12 02:15:45,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 987. [2023-11-12 02:15:45,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 686 states have (on average 1.313411078717201) internal successors, (901), 707 states have internal predecessors, (901), 235 states have call successors, (235), 51 states have call predecessors, (235), 51 states have return successors, (235), 234 states have call predecessors, (235), 235 states have call successors, (235) [2023-11-12 02:15:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1371 transitions. [2023-11-12 02:15:45,102 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1371 transitions. Word has length 139 [2023-11-12 02:15:45,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:45,103 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1371 transitions. [2023-11-12 02:15:45,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-12 02:15:45,104 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1371 transitions. [2023-11-12 02:15:45,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-12 02:15:45,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:45,107 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 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, 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] [2023-11-12 02:15:45,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:45,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:45,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-12 02:15:45,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:45,309 INFO L85 PathProgramCache]: Analyzing trace with hash -286125164, now seen corresponding path program 1 times [2023-11-12 02:15:45,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:45,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51451291] [2023-11-12 02:15:45,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:45,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:15:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:15:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:15:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-12 02:15:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:15:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:15:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:15:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:15:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:15:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:15:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:15:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:15:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:15:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:15:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-12 02:15:46,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:46,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51451291] [2023-11-12 02:15:46,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51451291] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:46,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559195568] [2023-11-12 02:15:46,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:46,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:46,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:46,890 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:46,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:15:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:47,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 3851 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:15:47,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-12 02:15:48,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:48,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559195568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:48,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:15:48,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2023-11-12 02:15:48,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894902299] [2023-11-12 02:15:48,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:48,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:15:48,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:48,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:15:48,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:15:48,021 INFO L87 Difference]: Start difference. First operand 987 states and 1371 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 02:15:48,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:48,539 INFO L93 Difference]: Finished difference Result 2091 states and 2927 transitions. [2023-11-12 02:15:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:15:48,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2023-11-12 02:15:48,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:48,549 INFO L225 Difference]: With dead ends: 2091 [2023-11-12 02:15:48,549 INFO L226 Difference]: Without dead ends: 1117 [2023-11-12 02:15:48,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:15:48,558 INFO L413 NwaCegarLoop]: 1116 mSDtfsCounter, 61 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 3316 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:48,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 3316 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:15:48,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-11-12 02:15:48,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1101. [2023-11-12 02:15:48,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 786 states have (on average 1.3371501272264632) internal successors, (1051), 807 states have internal predecessors, (1051), 249 states have call successors, (249), 51 states have call predecessors, (249), 51 states have return successors, (249), 248 states have call predecessors, (249), 249 states have call successors, (249) [2023-11-12 02:15:48,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1549 transitions. [2023-11-12 02:15:48,648 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1549 transitions. Word has length 145 [2023-11-12 02:15:48,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:48,650 INFO L495 AbstractCegarLoop]: Abstraction has 1101 states and 1549 transitions. [2023-11-12 02:15:48,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 02:15:48,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1549 transitions. [2023-11-12 02:15:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 02:15:48,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:48,660 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 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, 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] [2023-11-12 02:15:48,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:48,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:48,873 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-12 02:15:48,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:48,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1034994572, now seen corresponding path program 1 times [2023-11-12 02:15:48,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:48,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984001025] [2023-11-12 02:15:48,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:48,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:15:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:15:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:15:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-12 02:15:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:15:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:15:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:15:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:15:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:15:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:15:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:15:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:15:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:15:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:15:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:15:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,352 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-12 02:15:50,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984001025] [2023-11-12 02:15:50,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984001025] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:15:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684193356] [2023-11-12 02:15:50,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:50,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:50,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:50,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:15:50,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:15:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:51,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 3869 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:15:51,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:15:51,495 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-12 02:15:51,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:15:51,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684193356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:51,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:15:51,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2023-11-12 02:15:51,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967677167] [2023-11-12 02:15:51,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:51,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:15:51,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:51,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:15:51,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:15:51,498 INFO L87 Difference]: Start difference. First operand 1101 states and 1549 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 02:15:52,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:15:52,506 INFO L93 Difference]: Finished difference Result 2265 states and 3193 transitions. [2023-11-12 02:15:52,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:15:52,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2023-11-12 02:15:52,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:15:52,517 INFO L225 Difference]: With dead ends: 2265 [2023-11-12 02:15:52,517 INFO L226 Difference]: Without dead ends: 1177 [2023-11-12 02:15:52,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-11-12 02:15:52,523 INFO L413 NwaCegarLoop]: 1171 mSDtfsCounter, 102 mSDsluCounter, 5768 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 6939 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:15:52,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 6939 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-12 02:15:52,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2023-11-12 02:15:52,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1114. [2023-11-12 02:15:52,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 796 states have (on average 1.3341708542713568) internal successors, (1062), 817 states have internal predecessors, (1062), 251 states have call successors, (251), 51 states have call predecessors, (251), 52 states have return successors, (253), 251 states have call predecessors, (253), 251 states have call successors, (253) [2023-11-12 02:15:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1566 transitions. [2023-11-12 02:15:52,591 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1566 transitions. Word has length 150 [2023-11-12 02:15:52,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:15:52,592 INFO L495 AbstractCegarLoop]: Abstraction has 1114 states and 1566 transitions. [2023-11-12 02:15:52,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 02:15:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1566 transitions. [2023-11-12 02:15:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 02:15:52,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:52,597 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 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, 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] [2023-11-12 02:15:52,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:15:52,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4240c21c-b9c6-441d-8dc9-0d2f443ae2a4/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:15:52,811 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __create_pipeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-12 02:15:52,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:52,811 INFO L85 PathProgramCache]: Analyzing trace with hash 740012790, now seen corresponding path program 1 times [2023-11-12 02:15:52,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:52,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916729626] [2023-11-12 02:15:52,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:52,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:15:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:15:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:15:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:15:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-12 02:15:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:15:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:15:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:15:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:15:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:15:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:15:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:15:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:15:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:15:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:15:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:15:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:15:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-12 02:15:53,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:53,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916729626] [2023-11-12 02:15:53,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916729626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:53,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:53,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:15:53,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021237658] [2023-11-12 02:15:53,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:53,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:15:53,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:53,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:15:53,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:15:53,356 INFO L87 Difference]: Start difference. First operand 1114 states and 1566 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)