./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 527bcce2 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_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/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_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx --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-527bcce [2023-11-21 22:10:50,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:10:50,887 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 22:10:50,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:10:50,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:10:50,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:10:50,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:10:50,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:10:50,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:10:50,921 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:10:50,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:10:50,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:10:50,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:10:50,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:10:50,924 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:10:50,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:10:50,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:10:50,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:10:50,926 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:10:50,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:10:50,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:10:50,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:10:50,929 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:10:50,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:10:50,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:10:50,931 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:10:50,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:10:50,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:10:50,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:10:50,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:10:50,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:50,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:10:50,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:10:50,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:10:50,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:10:50,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:10:50,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:10:50,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:10:50,937 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:10:50,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:10:50,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:10:50,937 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_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3a88d220dbbb3b8b830b41f15ad66094bc858c7c21fc995876c56b7a27538e4 [2023-11-21 22:10:51,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:10:51,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:10:51,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:10:51,275 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:10:51,276 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:10:51,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-rc-imon--32_7a--a9e7fb5.i [2023-11-21 22:10:54,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:10:55,074 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:10:55,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-rc-imon--32_7a--a9e7fb5.i [2023-11-21 22:10:55,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/data/abbed6103/596d3048c82e4720818ab202b9838e75/FLAGacd49416e [2023-11-21 22:10:55,134 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/data/abbed6103/596d3048c82e4720818ab202b9838e75 [2023-11-21 22:10:55,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:10:55,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:10:55,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:55,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:10:55,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:10:55,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:55" (1/1) ... [2023-11-21 22:10:55,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2899e6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:55, skipping insertion in model container [2023-11-21 22:10:55,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:55" (1/1) ... [2023-11-21 22:10:55,301 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:10:57,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:57,248 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:10:57,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3253] [2023-11-21 22:10:57,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3260] [2023-11-21 22:10:57,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [3267] [2023-11-21 22:10:57,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3300] [2023-11-21 22:10:57,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3303] [2023-11-21 22:10:57,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3306] [2023-11-21 22:10:57,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3309] [2023-11-21 22:10:57,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3993] [2023-11-21 22:10:57,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3997] [2023-11-21 22:10:57,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [4020] [2023-11-21 22:10:57,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [4025] [2023-11-21 22:10:57,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [4030] [2023-11-21 22:10:57,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [4035] [2023-11-21 22:10:57,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4494] [2023-11-21 22:10:57,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:57,840 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:10:57,840 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:10:57,849 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:10:57,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57 WrapperNode [2023-11-21 22:10:57,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:57,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:57,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:10:57,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:10:57,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:57,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,070 INFO L138 Inliner]: procedures = 240, calls = 2469, calls flagged for inlining = 112, calls inlined = 63, statements flattened = 2665 [2023-11-21 22:10:58,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:58,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:10:58,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:10:58,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:10:58,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,122 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,678 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memcpy is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:10:58,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:10:58,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:10:58,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:10:58,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:10:58,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (1/1) ... [2023-11-21 22:10:58,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:58,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:58,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:58,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:10:59,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-21 22:10:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-21 22:10:59,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-21 22:10:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-21 22:10:59,006 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-21 22:10:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:10:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:10:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-11-21 22:10:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-11-21 22:10:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-21 22:10:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-21 22:10:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-21 22:10:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-21 22:10:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:10:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:10:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2023-11-21 22:10:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2023-11-21 22:10:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-21 22:10:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-21 22:10:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-21 22:10:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-21 22:10:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:10:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:10:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:10:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:10:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-11-21 22:10:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-11-21 22:10:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-21 22:10:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-21 22:10:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-21 22:10:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-21 22:10:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 22:10:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 22:10:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2023-11-21 22:10:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2023-11-21 22:10:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:10:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-21 22:10:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-21 22:10:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:10:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-11-21 22:10:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-11-21 22:10:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-21 22:10:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-21 22:10:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:10:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:10:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:10:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:10:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 22:10:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 22:10:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 22:10:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 22:10:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 22:10:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 22:10:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-21 22:10:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-21 22:10:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-21 22:10:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-21 22:10:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-11-21 22:10:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-11-21 22:10:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-21 22:10:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-21 22:10:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-21 22:10:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-21 22:10:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:10:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-21 22:10:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-21 22:10:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-21 22:10:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-21 22:10:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:10:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 22:10:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 22:10:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-11-21 22:10:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-11-21 22:10:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-21 22:10:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-21 22:10:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:10:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-21 22:10:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-21 22:10:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:10:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:10:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 22:10:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 22:10:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-21 22:10:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-21 22:10:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-21 22:10:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-21 22:10:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:10:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:10:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:10:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-11-21 22:10:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-11-21 22:10:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-21 22:10:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-21 22:10:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:10:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:10:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2023-11-21 22:10:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2023-11-21 22:10:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:10:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-11-21 22:10:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-11-21 22:10:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-21 22:10:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-21 22:10:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:10:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:10:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-21 22:10:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-21 22:10:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 22:10:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-11-21 22:10:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-11-21 22:10:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-21 22:10:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-21 22:10:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2023-11-21 22:10:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2023-11-21 22:10:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-21 22:10:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-21 22:10:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2023-11-21 22:10:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2023-11-21 22:10:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:10:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-21 22:10:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-21 22:10:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:10:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:10:59,446 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:10:59,450 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:03,924 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:04,703 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:04,704 INFO L308 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-21 22:11:04,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:04 BoogieIcfgContainer [2023-11-21 22:11:04,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:04,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:04,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:04,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:04,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:10:55" (1/3) ... [2023-11-21 22:11:04,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b44e617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:04, skipping insertion in model container [2023-11-21 22:11:04,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:57" (2/3) ... [2023-11-21 22:11:04,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b44e617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:04, skipping insertion in model container [2023-11-21 22:11:04,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:04" (3/3) ... [2023-11-21 22:11:04,721 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-rc-imon--32_7a--a9e7fb5.i [2023-11-21 22:11:04,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:04,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-21 22:11:04,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:04,834 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;@6cb8ecdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:04,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-21 22:11:04,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 678 states, 394 states have (on average 1.3071065989847717) internal successors, (515), 426 states have internal predecessors, (515), 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) [2023-11-21 22:11:04,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 22:11:04,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:04,872 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] [2023-11-21 22:11:04,874 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)] === [2023-11-21 22:11:04,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1694418680, now seen corresponding path program 1 times [2023-11-21 22:11:04,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:04,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287725906] [2023-11-21 22:11:04,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:04,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:05,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:11:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:11:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:05,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:06,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:11:06,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:06,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287725906] [2023-11-21 22:11:06,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287725906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:06,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:06,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:11:06,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032777687] [2023-11-21 22:11:06,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:06,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:11:06,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:06,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:11:06,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:06,098 INFO L87 Difference]: Start difference. First operand has 678 states, 394 states have (on average 1.3071065989847717) internal successors, (515), 426 states have internal predecessors, (515), 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 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-21 22:11:09,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:09,639 INFO L93 Difference]: Finished difference Result 1369 states and 1929 transitions. [2023-11-21 22:11:09,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:11:09,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 34 [2023-11-21 22:11:09,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:09,662 INFO L225 Difference]: With dead ends: 1369 [2023-11-21 22:11:09,663 INFO L226 Difference]: Without dead ends: 683 [2023-11-21 22:11:09,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:09,678 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 350 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:09,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1490 Invalid, 851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [215 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-21 22:11:09,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-11-21 22:11:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 682. [2023-11-21 22:11:09,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 405 states have (on average 1.2839506172839505) internal successors, (520), 427 states have internal predecessors, (520), 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) [2023-11-21 22:11:09,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 940 transitions. [2023-11-21 22:11:09,848 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 940 transitions. Word has length 34 [2023-11-21 22:11:09,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:09,850 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 940 transitions. [2023-11-21 22:11:09,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-21 22:11:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 940 transitions. [2023-11-21 22:11:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-21 22:11:09,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:09,858 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:09,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:11:09,858 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)] === [2023-11-21 22:11:09,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:09,859 INFO L85 PathProgramCache]: Analyzing trace with hash -947795040, now seen corresponding path program 1 times [2023-11-21 22:11:09,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:09,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332224661] [2023-11-21 22:11:09,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:09,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 22:11:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:11:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 22:11:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-21 22:11:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:11:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:11:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:11:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 22:11:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:11:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-21 22:11:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:11:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:11:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,755 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-21 22:11:10,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:10,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332224661] [2023-11-21 22:11:10,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332224661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:10,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:10,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:10,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497516989] [2023-11-21 22:11:10,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:10,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:10,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:10,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:10,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:10,761 INFO L87 Difference]: Start difference. First operand 682 states and 940 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-21 22:11:15,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:15,114 INFO L93 Difference]: Finished difference Result 742 states and 1033 transitions. [2023-11-21 22:11:15,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:11:15,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 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 92 [2023-11-21 22:11:15,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:15,126 INFO L225 Difference]: With dead ends: 742 [2023-11-21 22:11:15,126 INFO L226 Difference]: Without dead ends: 740 [2023-11-21 22:11:15,127 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 [2023-11-21 22:11:15,128 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 568 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 2335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 749 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:15,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 1844 Invalid, 2335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [749 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-21 22:11:15,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-11-21 22:11:15,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 697. [2023-11-21 22:11:15,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 416 states have (on average 1.2884615384615385) internal successors, (536), 438 states have internal predecessors, (536), 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) [2023-11-21 22:11:15,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 964 transitions. [2023-11-21 22:11:15,227 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 964 transitions. Word has length 92 [2023-11-21 22:11:15,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:15,229 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 964 transitions. [2023-11-21 22:11:15,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-21 22:11:15,231 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 964 transitions. [2023-11-21 22:11:15,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-21 22:11:15,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:15,244 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:15,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:11:15,245 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)] === [2023-11-21 22:11:15,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1402293940, now seen corresponding path program 1 times [2023-11-21 22:11:15,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:15,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385002587] [2023-11-21 22:11:15,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:15,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:15,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 22:11:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:11:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 22:11:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-21 22:11:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:11:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:11:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:11:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 22:11:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:11:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-21 22:11:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:11:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:11:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-21 22:11:16,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:16,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385002587] [2023-11-21 22:11:16,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385002587] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:16,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43132153] [2023-11-21 22:11:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:16,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:16,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:16,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:16,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:11:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:17,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 3611 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:11:17,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:17,254 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-21 22:11:17,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:11:17,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43132153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:17,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:11:17,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-21 22:11:17,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240813646] [2023-11-21 22:11:17,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:17,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:11:17,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:17,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:11:17,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:11:17,264 INFO L87 Difference]: Start difference. First operand 697 states and 964 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-21 22:11:19,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:19,163 INFO L93 Difference]: Finished difference Result 722 states and 1004 transitions. [2023-11-21 22:11:19,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:11:19,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 97 [2023-11-21 22:11:19,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:19,207 INFO L225 Difference]: With dead ends: 722 [2023-11-21 22:11:19,208 INFO L226 Difference]: Without dead ends: 721 [2023-11-21 22:11:19,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:11:19,210 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 72 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:19,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 2433 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-21 22:11:19,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2023-11-21 22:11:19,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 696. [2023-11-21 22:11:19,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 416 states have (on average 1.2860576923076923) internal successors, (535), 437 states have internal predecessors, (535), 214 states have call successors, (214), 51 states have call predecessors, (214), 51 states have return successors, (214), 213 states have call predecessors, (214), 214 states have call successors, (214) [2023-11-21 22:11:19,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 963 transitions. [2023-11-21 22:11:19,280 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 963 transitions. Word has length 97 [2023-11-21 22:11:19,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:19,281 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 963 transitions. [2023-11-21 22:11:19,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-21 22:11:19,282 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 963 transitions. [2023-11-21 22:11:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-21 22:11:19,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:19,285 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:19,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:19,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:19,501 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)] === [2023-11-21 22:11:19,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:19,501 INFO L85 PathProgramCache]: Analyzing trace with hash 521439575, now seen corresponding path program 1 times [2023-11-21 22:11:19,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:19,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520663912] [2023-11-21 22:11:19,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:19,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 22:11:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:11:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 22:11:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-21 22:11:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:11:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:11:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:11:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 22:11:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:11:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-21 22:11:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:11:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:11:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:20,276 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-21 22:11:20,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:20,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520663912] [2023-11-21 22:11:20,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520663912] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:11:20,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210616896] [2023-11-21 22:11:20,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:20,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:20,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:20,279 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:11:20,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:11:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:21,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 3612 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:11:21,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:11:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-21 22:11:21,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:11:21,428 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-21 22:11:21,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210616896] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:11:21,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:11:21,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2023-11-21 22:11:21,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542443429] [2023-11-21 22:11:21,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:11:21,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:11:21,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:21,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:11:21,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:11:21,432 INFO L87 Difference]: Start difference. First operand 696 states and 963 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 7 states have internal predecessors, (77), 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) [2023-11-21 22:11:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:28,981 INFO L93 Difference]: Finished difference Result 860 states and 1225 transitions. [2023-11-21 22:11:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:11:28,982 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 7 states have internal predecessors, (77), 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 98 [2023-11-21 22:11:28,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:28,989 INFO L225 Difference]: With dead ends: 860 [2023-11-21 22:11:28,990 INFO L226 Difference]: Without dead ends: 859 [2023-11-21 22:11:28,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-11-21 22:11:28,992 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 869 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:28,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 2279 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-21 22:11:28,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2023-11-21 22:11:29,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 741. [2023-11-21 22:11:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 449 states have (on average 1.2984409799554566) internal successors, (583), 470 states have internal predecessors, (583), 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) [2023-11-21 22:11:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1035 transitions. [2023-11-21 22:11:29,054 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1035 transitions. Word has length 98 [2023-11-21 22:11:29,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:29,055 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 1035 transitions. [2023-11-21 22:11:29,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 7 states have internal predecessors, (77), 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) [2023-11-21 22:11:29,056 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1035 transitions. [2023-11-21 22:11:29,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-21 22:11:29,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:29,059 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:29,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:11:29,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9060a9f9-8ca0-4088-9ab1-8368ef28729d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:11:29,273 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)] === [2023-11-21 22:11:29,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:29,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1767544865, now seen corresponding path program 1 times [2023-11-21 22:11:29,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:29,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284154346] [2023-11-21 22:11:29,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:29,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 22:11:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:11:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 22:11:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-21 22:11:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:11:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:11:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:11:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 22:11:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:11:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-21 22:11:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:11:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:11:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-21 22:11:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-21 22:11:30,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:30,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284154346] [2023-11-21 22:11:30,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284154346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:30,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:30,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:11:30,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519521513] [2023-11-21 22:11:30,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:30,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:11:30,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:30,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:11:30,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:11:30,404 INFO L87 Difference]: Start difference. First operand 741 states and 1035 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-21 22:11:36,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:11:36,454 INFO L93 Difference]: Finished difference Result 1565 states and 2206 transitions. [2023-11-21 22:11:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:11:36,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (19), 6 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 104 [2023-11-21 22:11:36,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:11:36,462 INFO L225 Difference]: With dead ends: 1565 [2023-11-21 22:11:36,462 INFO L226 Difference]: Without dead ends: 832 [2023-11-21 22:11:36,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:11:36,466 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 652 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 974 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:11:36,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1845 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [974 Valid, 1582 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-21 22:11:36,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2023-11-21 22:11:36,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 804. [2023-11-21 22:11:36,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 498 states have (on average 1.3152610441767068) internal successors, (655), 519 states have internal predecessors, (655), 240 states have call successors, (240), 51 states have call predecessors, (240), 51 states have return successors, (240), 239 states have call predecessors, (240), 240 states have call successors, (240) [2023-11-21 22:11:36,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1135 transitions. [2023-11-21 22:11:36,527 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1135 transitions. Word has length 104 [2023-11-21 22:11:36,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:11:36,528 INFO L495 AbstractCegarLoop]: Abstraction has 804 states and 1135 transitions. [2023-11-21 22:11:36,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-21 22:11:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1135 transitions. [2023-11-21 22:11:36,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-21 22:11:36,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:36,531 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:36,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:11:36,532 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)] === [2023-11-21 22:11:36,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:36,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1014118296, now seen corresponding path program 1 times [2023-11-21 22:11:36,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:36,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231338306] [2023-11-21 22:11:36,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:36,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-21 22:11:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-21 22:11:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 22:11:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-21 22:11:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:11:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:11:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:11:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-21 22:11:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:11:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-21 22:11:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-21 22:11:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:11:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:11:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-21 22:11:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 22:11:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:37,488 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-21 22:11:37,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:37,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231338306] [2023-11-21 22:11:37,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231338306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:37,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:37,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:11:37,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665681003] [2023-11-21 22:11:37,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:37,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:11:37,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:37,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:11:37,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:11:37,492 INFO L87 Difference]: Start difference. First operand 804 states and 1135 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)