./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:55:49,654 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:55:49,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:55:49,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:55:49,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:55:49,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:55:49,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:55:49,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:55:49,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:55:49,755 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:55:49,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:55:49,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:55:49,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:55:49,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:55:49,758 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:55:49,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:55:49,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:55:49,760 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:55:49,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:55:49,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:55:49,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:55:49,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:55:49,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:55:49,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:55:49,764 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:55:49,764 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:55:49,764 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:55:49,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:55:49,765 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:55:49,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:55:49,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:55:49,766 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:55:49,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:55:49,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:55:49,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:55:49,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:55:49,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:55:49,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:55:49,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:55:49,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:55:49,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:55:49,769 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:55:49,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:55:49,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:55:49,770 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_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 [2023-11-29 04:55:50,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:55:50,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:55:50,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:55:50,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:55:50,040 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:55:50,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2023-11-29 04:55:53,023 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:55:53,323 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:55:53,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2023-11-29 04:55:53,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/data/e72f1d060/f636d4a36a504b02bc10dc8d218d7044/FLAG964bf0e44 [2023-11-29 04:55:53,360 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/data/e72f1d060/f636d4a36a504b02bc10dc8d218d7044 [2023-11-29 04:55:53,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:55:53,364 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:55:53,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:55:53,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:55:53,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:55:53,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:55:53" (1/1) ... [2023-11-29 04:55:53,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229c7d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:53, skipping insertion in model container [2023-11-29 04:55:53,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:55:53" (1/1) ... [2023-11-29 04:55:53,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:55:54,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:55:54,114 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:55:54,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:55:54,259 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:55:54,268 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:55:54,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54 WrapperNode [2023-11-29 04:55:54,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:55:54,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:55:54,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:55:54,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:55:54,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,389 INFO L138 Inliner]: procedures = 208, calls = 288, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1380 [2023-11-29 04:55:54,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:55:54,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:55:54,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:55:54,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:55:54,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,418 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,540 INFO L175 MemorySlicer]: Split 261 memory accesses to 4 slices as follows [2, 220, 5, 34]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 50, 1, 4]. [2023-11-29 04:55:54,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:55:54,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:55:54,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:55:54,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:55:54,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (1/1) ... [2023-11-29 04:55:54,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:55:54,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:54,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:55:54,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:55:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 04:55:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 04:55:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 04:55:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 04:55:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 04:55:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 04:55:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 04:55:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 04:55:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 04:55:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 04:55:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:55:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 04:55:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 04:55:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 04:55:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 04:55:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 04:55:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:55:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 04:55:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 04:55:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 04:55:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 04:55:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:55:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:55:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 04:55:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 04:55:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 04:55:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 04:55:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 04:55:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:55:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 04:55:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 04:55:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 04:55:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 04:55:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:55:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:55:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:55:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 04:55:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:55:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:55:54,987 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:55:54,990 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:55:56,523 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:55:56,574 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:55:56,575 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-29 04:55:56,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:55:56 BoogieIcfgContainer [2023-11-29 04:55:56,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:55:56,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:55:56,579 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:55:56,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:55:56,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:55:53" (1/3) ... [2023-11-29 04:55:56,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16dc3adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:55:56, skipping insertion in model container [2023-11-29 04:55:56,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:55:54" (2/3) ... [2023-11-29 04:55:56,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16dc3adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:55:56, skipping insertion in model container [2023-11-29 04:55:56,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:55:56" (3/3) ... [2023-11-29 04:55:56,584 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test2-2.i [2023-11-29 04:55:56,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:55:56,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 04:55:56,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:55:56,663 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;@7a7436c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:55:56,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 04:55:56,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 385 states, 363 states have (on average 1.7107438016528926) internal successors, (621), 378 states have internal predecessors, (621), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:55:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:55:56,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:56,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:55:56,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:55:56,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:56,681 INFO L85 PathProgramCache]: Analyzing trace with hash -679169128, now seen corresponding path program 1 times [2023-11-29 04:55:56,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:56,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076996946] [2023-11-29 04:55:56,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:56,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:55:56,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:55:56,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076996946] [2023-11-29 04:55:56,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 04:55:56,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370045162] [2023-11-29 04:55:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:56,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:56,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:56,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:55:56,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:55:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:55:57,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:55:57,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:55:57,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:55:57,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:55:57,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370045162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:55:57,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:55:57,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:55:57,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144143917] [2023-11-29 04:55:57,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:55:57,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:55:57,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:55:57,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:55:57,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:55:57,139 INFO L87 Difference]: Start difference. First operand has 385 states, 363 states have (on average 1.7107438016528926) internal successors, (621), 378 states have internal predecessors, (621), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:57,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:55:57,228 INFO L93 Difference]: Finished difference Result 767 states and 1285 transitions. [2023-11-29 04:55:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:55:57,231 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 04:55:57,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:55:57,246 INFO L225 Difference]: With dead ends: 767 [2023-11-29 04:55:57,247 INFO L226 Difference]: Without dead ends: 345 [2023-11-29 04:55:57,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:55:57,257 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:55:57,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 564 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:55:57,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-11-29 04:55:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2023-11-29 04:55:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 327 states have (on average 1.5321100917431192) internal successors, (501), 339 states have internal predecessors, (501), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:55:57,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 517 transitions. [2023-11-29 04:55:57,337 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 517 transitions. Word has length 6 [2023-11-29 04:55:57,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:55:57,338 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 517 transitions. [2023-11-29 04:55:57,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 517 transitions. [2023-11-29 04:55:57,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:55:57,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:57,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:55:57,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:55:57,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:57,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:55:57,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:57,541 INFO L85 PathProgramCache]: Analyzing trace with hash -679167206, now seen corresponding path program 1 times [2023-11-29 04:55:57,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:57,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800643970] [2023-11-29 04:55:57,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:57,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:57,589 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:55:57,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044200017] [2023-11-29 04:55:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:57,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:57,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:57,592 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:55:57,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:55:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:55:57,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:55:57,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:55:57,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:55:57,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:55:57,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:55:57,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:55:57,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800643970] [2023-11-29 04:55:57,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:55:57,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044200017] [2023-11-29 04:55:57,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044200017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:55:57,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:55:57,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:55:57,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302357348] [2023-11-29 04:55:57,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:55:57,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:55:57,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:55:57,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:55:57,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:55:57,859 INFO L87 Difference]: Start difference. First operand 345 states and 517 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:58,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:55:58,066 INFO L93 Difference]: Finished difference Result 682 states and 1027 transitions. [2023-11-29 04:55:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:55:58,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 04:55:58,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:55:58,074 INFO L225 Difference]: With dead ends: 682 [2023-11-29 04:55:58,074 INFO L226 Difference]: Without dead ends: 680 [2023-11-29 04:55:58,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:55:58,077 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 487 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:55:58,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1549 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:55:58,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-11-29 04:55:58,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 351. [2023-11-29 04:55:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 333 states have (on average 1.5255255255255256) internal successors, (508), 345 states have internal predecessors, (508), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:55:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 524 transitions. [2023-11-29 04:55:58,113 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 524 transitions. Word has length 6 [2023-11-29 04:55:58,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:55:58,114 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 524 transitions. [2023-11-29 04:55:58,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:58,114 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 524 transitions. [2023-11-29 04:55:58,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 04:55:58,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:58,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:55:58,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:55:58,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:58,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:55:58,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:58,321 INFO L85 PathProgramCache]: Analyzing trace with hash -687041264, now seen corresponding path program 1 times [2023-11-29 04:55:58,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:58,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36750198] [2023-11-29 04:55:58,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:58,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:55:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:55:58,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:55:58,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36750198] [2023-11-29 04:55:58,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36750198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:55:58,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:55:58,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:55:58,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070500120] [2023-11-29 04:55:58,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:55:58,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:55:58,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:55:58,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:55:58,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:55:58,784 INFO L87 Difference]: Start difference. First operand 351 states and 524 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:58,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:55:58,946 INFO L93 Difference]: Finished difference Result 839 states and 1268 transitions. [2023-11-29 04:55:58,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:55:58,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-11-29 04:55:58,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:55:58,952 INFO L225 Difference]: With dead ends: 839 [2023-11-29 04:55:58,952 INFO L226 Difference]: Without dead ends: 679 [2023-11-29 04:55:58,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:55:58,956 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 488 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:55:58,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1552 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:55:58,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-11-29 04:55:58,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 351. [2023-11-29 04:55:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 333 states have (on average 1.5225225225225225) internal successors, (507), 345 states have internal predecessors, (507), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:55:58,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 523 transitions. [2023-11-29 04:55:58,975 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 523 transitions. Word has length 63 [2023-11-29 04:55:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:55:58,975 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 523 transitions. [2023-11-29 04:55:58,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 523 transitions. [2023-11-29 04:55:58,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:55:58,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:58,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:55:58,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:55:58,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:55:58,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:58,981 INFO L85 PathProgramCache]: Analyzing trace with hash -916697141, now seen corresponding path program 1 times [2023-11-29 04:55:58,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:58,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864173818] [2023-11-29 04:55:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:58,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:59,041 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:55:59,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974110643] [2023-11-29 04:55:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:59,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:59,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:59,046 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:55:59,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:55:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:55:59,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:55:59,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:55:59,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:55:59,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:55:59,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:55:59,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864173818] [2023-11-29 04:55:59,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:55:59,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974110643] [2023-11-29 04:55:59,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974110643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:55:59,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:55:59,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:55:59,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119854052] [2023-11-29 04:55:59,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:55:59,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:55:59,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:55:59,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:55:59,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:55:59,377 INFO L87 Difference]: Start difference. First operand 351 states and 523 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:55:59,473 INFO L93 Difference]: Finished difference Result 716 states and 1070 transitions. [2023-11-29 04:55:59,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:55:59,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:55:59,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:55:59,477 INFO L225 Difference]: With dead ends: 716 [2023-11-29 04:55:59,477 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 04:55:59,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:55:59,479 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 8 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:55:59,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 976 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:55:59,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 04:55:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2023-11-29 04:55:59,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 353 states have (on average 1.4929178470254958) internal successors, (527), 365 states have internal predecessors, (527), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:55:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 543 transitions. [2023-11-29 04:55:59,493 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 543 transitions. Word has length 80 [2023-11-29 04:55:59,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:55:59,494 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 543 transitions. [2023-11-29 04:55:59,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:55:59,494 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 543 transitions. [2023-11-29 04:55:59,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:55:59,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:55:59,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:55:59,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:55:59,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:59,703 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:55:59,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:55:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1792716147, now seen corresponding path program 1 times [2023-11-29 04:55:59,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:55:59,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400124451] [2023-11-29 04:55:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:59,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:55:59,777 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:55:59,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155892333] [2023-11-29 04:55:59,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:55:59,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:55:59,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:55:59,779 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:55:59,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:56:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:00,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:56:00,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:00,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:00,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:00,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400124451] [2023-11-29 04:56:00,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:00,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155892333] [2023-11-29 04:56:00,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155892333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:00,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:00,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:56:00,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978588523] [2023-11-29 04:56:00,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:00,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:56:00,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:56:00,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:56:00,156 INFO L87 Difference]: Start difference. First operand 371 states and 543 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:00,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:00,266 INFO L93 Difference]: Finished difference Result 722 states and 1066 transitions. [2023-11-29 04:56:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:56:00,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:56:00,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:00,269 INFO L225 Difference]: With dead ends: 722 [2023-11-29 04:56:00,269 INFO L226 Difference]: Without dead ends: 358 [2023-11-29 04:56:00,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:56:00,271 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 147 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:00,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1784 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:56:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-29 04:56:00,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2023-11-29 04:56:00,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 339 states have (on average 1.4926253687315634) internal successors, (506), 351 states have internal predecessors, (506), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:56:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 522 transitions. [2023-11-29 04:56:00,283 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 522 transitions. Word has length 80 [2023-11-29 04:56:00,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:00,284 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 522 transitions. [2023-11-29 04:56:00,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 522 transitions. [2023-11-29 04:56:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:56:00,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:00,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:00,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:56:00,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:00,487 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:56:00,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:00,488 INFO L85 PathProgramCache]: Analyzing trace with hash -347557441, now seen corresponding path program 1 times [2023-11-29 04:56:00,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:00,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452413542] [2023-11-29 04:56:00,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:00,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:00,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:00,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566425144] [2023-11-29 04:56:00,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:00,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:00,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:00,540 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:00,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:56:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:00,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:56:00,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:00,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:00,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:00,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452413542] [2023-11-29 04:56:00,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:00,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566425144] [2023-11-29 04:56:00,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566425144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:00,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:00,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:56:00,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352383432] [2023-11-29 04:56:00,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:00,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:56:00,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:00,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:56:00,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:56:00,915 INFO L87 Difference]: Start difference. First operand 357 states and 522 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:01,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:01,051 INFO L93 Difference]: Finished difference Result 817 states and 1206 transitions. [2023-11-29 04:56:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:56:01,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:56:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:01,055 INFO L225 Difference]: With dead ends: 817 [2023-11-29 04:56:01,056 INFO L226 Difference]: Without dead ends: 467 [2023-11-29 04:56:01,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:56:01,057 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 149 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:01,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1589 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:56:01,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-11-29 04:56:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 380. [2023-11-29 04:56:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 362 states have (on average 1.4668508287292819) internal successors, (531), 374 states have internal predecessors, (531), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:56:01,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 547 transitions. [2023-11-29 04:56:01,074 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 547 transitions. Word has length 80 [2023-11-29 04:56:01,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:01,075 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 547 transitions. [2023-11-29 04:56:01,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:01,075 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 547 transitions. [2023-11-29 04:56:01,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:56:01,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:01,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:01,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 04:56:01,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:01,281 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:56:01,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:01,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1646102919, now seen corresponding path program 1 times [2023-11-29 04:56:01,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:01,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664974089] [2023-11-29 04:56:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:01,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:01,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:01,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [916313741] [2023-11-29 04:56:01,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:01,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:01,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:01,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:01,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:56:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:01,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:56:01,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:01,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:01,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:01,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664974089] [2023-11-29 04:56:01,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:01,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916313741] [2023-11-29 04:56:01,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916313741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:01,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:01,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:56:01,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968714735] [2023-11-29 04:56:01,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:01,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:56:01,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:01,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:56:01,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:56:01,717 INFO L87 Difference]: Start difference. First operand 380 states and 547 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:01,792 INFO L93 Difference]: Finished difference Result 685 states and 987 transitions. [2023-11-29 04:56:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:56:01,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:56:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:01,796 INFO L225 Difference]: With dead ends: 685 [2023-11-29 04:56:01,796 INFO L226 Difference]: Without dead ends: 312 [2023-11-29 04:56:01,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:56:01,797 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 78 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:01,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1177 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:56:01,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-29 04:56:01,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2023-11-29 04:56:01,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 294 states have (on average 1.4591836734693877) internal successors, (429), 306 states have internal predecessors, (429), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:56:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 445 transitions. [2023-11-29 04:56:01,809 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 445 transitions. Word has length 80 [2023-11-29 04:56:01,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:01,809 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 445 transitions. [2023-11-29 04:56:01,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 445 transitions. [2023-11-29 04:56:01,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:56:01,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:01,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:01,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:56:02,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:02,017 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:56:02,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:02,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1223576447, now seen corresponding path program 1 times [2023-11-29 04:56:02,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:02,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649351760] [2023-11-29 04:56:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:02,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:02,069 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:02,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378290033] [2023-11-29 04:56:02,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:02,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:02,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:02,071 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:02,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:56:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:02,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:56:02,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:02,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:56:02,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:02,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:02,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649351760] [2023-11-29 04:56:02,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:02,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378290033] [2023-11-29 04:56:02,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378290033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:02,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:02,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:56:02,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723844239] [2023-11-29 04:56:02,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:02,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:56:02,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:02,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:56:02,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:56:02,718 INFO L87 Difference]: Start difference. First operand 312 states and 445 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:02,798 INFO L93 Difference]: Finished difference Result 822 states and 1193 transitions. [2023-11-29 04:56:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:56:02,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:56:02,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:02,803 INFO L225 Difference]: With dead ends: 822 [2023-11-29 04:56:02,803 INFO L226 Difference]: Without dead ends: 517 [2023-11-29 04:56:02,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:56:02,805 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 252 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:02,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 1027 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:56:02,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-29 04:56:02,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 513. [2023-11-29 04:56:02,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 490 states have (on average 1.4836734693877551) internal successors, (727), 507 states have internal predecessors, (727), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:56:02,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 753 transitions. [2023-11-29 04:56:02,827 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 753 transitions. Word has length 80 [2023-11-29 04:56:02,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:02,828 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 753 transitions. [2023-11-29 04:56:02,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:56:02,828 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 753 transitions. [2023-11-29 04:56:02,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 04:56:02,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:02,829 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:56:02,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:56:03,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:03,030 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:56:03,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1286853546, now seen corresponding path program 1 times [2023-11-29 04:56:03,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:03,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554869988] [2023-11-29 04:56:03,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:03,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:03,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:03,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777712207] [2023-11-29 04:56:03,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:03,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:03,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:03,094 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:03,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:56:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:03,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:56:03,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:03,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:56:03,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 04:56:03,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:56:03,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:03,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:03,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554869988] [2023-11-29 04:56:03,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:03,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777712207] [2023-11-29 04:56:03,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777712207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:03,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:03,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:56:03,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909096042] [2023-11-29 04:56:03,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:03,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:56:03,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:03,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:56:03,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:56:03,755 INFO L87 Difference]: Start difference. First operand 513 states and 753 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:07,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:56:11,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:56:12,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:12,027 INFO L93 Difference]: Finished difference Result 692 states and 1030 transitions. [2023-11-29 04:56:12,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:56:12,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-29 04:56:12,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:12,033 INFO L225 Difference]: With dead ends: 692 [2023-11-29 04:56:12,033 INFO L226 Difference]: Without dead ends: 691 [2023-11-29 04:56:12,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:56:12,034 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 336 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:12,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1258 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-11-29 04:56:12,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-11-29 04:56:12,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 512. [2023-11-29 04:56:12,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 490 states have (on average 1.4816326530612245) internal successors, (726), 506 states have internal predecessors, (726), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:56:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 752 transitions. [2023-11-29 04:56:12,055 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 752 transitions. Word has length 93 [2023-11-29 04:56:12,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:12,055 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 752 transitions. [2023-11-29 04:56:12,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:12,056 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 752 transitions. [2023-11-29 04:56:12,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 04:56:12,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:12,057 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:56:12,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 04:56:12,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:12,258 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:56:12,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:12,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1237753465, now seen corresponding path program 1 times [2023-11-29 04:56:12,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:12,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484585577] [2023-11-29 04:56:12,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:12,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:12,304 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:12,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387764942] [2023-11-29 04:56:12,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:12,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:12,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:12,306 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:12,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:56:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:12,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:56:12,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:12,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 04:56:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:56:12,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:12,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:12,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484585577] [2023-11-29 04:56:12,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:12,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387764942] [2023-11-29 04:56:12,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387764942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:12,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:12,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:56:12,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807065114] [2023-11-29 04:56:12,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:12,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:56:12,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:12,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:56:12,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:56:12,868 INFO L87 Difference]: Start difference. First operand 512 states and 752 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:13,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:13,147 INFO L93 Difference]: Finished difference Result 691 states and 1029 transitions. [2023-11-29 04:56:13,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:56:13,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2023-11-29 04:56:13,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:13,153 INFO L225 Difference]: With dead ends: 691 [2023-11-29 04:56:13,154 INFO L226 Difference]: Without dead ends: 690 [2023-11-29 04:56:13,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:56:13,155 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 668 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:13,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1432 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:56:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-11-29 04:56:13,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 511. [2023-11-29 04:56:13,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 490 states have (on average 1.4795918367346939) internal successors, (725), 505 states have internal predecessors, (725), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:56:13,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 751 transitions. [2023-11-29 04:56:13,182 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 751 transitions. Word has length 94 [2023-11-29 04:56:13,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:13,183 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 751 transitions. [2023-11-29 04:56:13,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:13,183 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 751 transitions. [2023-11-29 04:56:13,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 04:56:13,185 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:13,185 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:56:13,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 04:56:13,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:56:13,386 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:56:13,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:13,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1239415477, now seen corresponding path program 1 times [2023-11-29 04:56:13,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:13,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799207224] [2023-11-29 04:56:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:13,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:13,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:13,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920407516] [2023-11-29 04:56:13,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:13,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:13,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:13,447 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:13,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:56:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:14,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:56:14,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:14,296 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:56:14,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:14,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:14,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799207224] [2023-11-29 04:56:14,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:14,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920407516] [2023-11-29 04:56:14,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920407516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:14,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:14,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:56:14,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714768136] [2023-11-29 04:56:14,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:14,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:56:14,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:14,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:56:14,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:56:14,299 INFO L87 Difference]: Start difference. First operand 511 states and 751 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:14,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:14,595 INFO L93 Difference]: Finished difference Result 994 states and 1477 transitions. [2023-11-29 04:56:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:56:14,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 99 [2023-11-29 04:56:14,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:14,600 INFO L225 Difference]: With dead ends: 994 [2023-11-29 04:56:14,600 INFO L226 Difference]: Without dead ends: 521 [2023-11-29 04:56:14,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:56:14,602 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 8 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:14,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1884 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:56:14,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-11-29 04:56:14,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 519. [2023-11-29 04:56:14,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 498 states have (on average 1.4718875502008033) internal successors, (733), 513 states have internal predecessors, (733), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:56:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 759 transitions. [2023-11-29 04:56:14,641 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 759 transitions. Word has length 99 [2023-11-29 04:56:14,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:14,641 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 759 transitions. [2023-11-29 04:56:14,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:14,642 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 759 transitions. [2023-11-29 04:56:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:56:14,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:14,644 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:56:14,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 04:56:14,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 04:56:14,845 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:56:14,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:14,845 INFO L85 PathProgramCache]: Analyzing trace with hash -390434580, now seen corresponding path program 1 times [2023-11-29 04:56:14,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:14,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739289717] [2023-11-29 04:56:14,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:14,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:14,912 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:14,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239600994] [2023-11-29 04:56:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:14,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:14,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:14,914 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:14,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:56:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:15,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:56:15,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:56:15,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:15,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:15,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739289717] [2023-11-29 04:56:15,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:15,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239600994] [2023-11-29 04:56:15,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239600994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:15,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:15,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:56:15,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117632643] [2023-11-29 04:56:15,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:15,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:56:15,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:15,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:56:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:56:15,573 INFO L87 Difference]: Start difference. First operand 519 states and 759 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:16,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:16,117 INFO L93 Difference]: Finished difference Result 998 states and 1475 transitions. [2023-11-29 04:56:16,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:56:16,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 100 [2023-11-29 04:56:16,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:16,122 INFO L225 Difference]: With dead ends: 998 [2023-11-29 04:56:16,122 INFO L226 Difference]: Without dead ends: 529 [2023-11-29 04:56:16,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:56:16,124 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 13 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:16,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2219 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:56:16,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-11-29 04:56:16,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 527. [2023-11-29 04:56:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 506 states have (on average 1.4683794466403162) internal successors, (743), 521 states have internal predecessors, (743), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:56:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 769 transitions. [2023-11-29 04:56:16,147 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 769 transitions. Word has length 100 [2023-11-29 04:56:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:16,147 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 769 transitions. [2023-11-29 04:56:16,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:16,148 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 769 transitions. [2023-11-29 04:56:16,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 04:56:16,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:16,149 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:56:16,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 04:56:16,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:16,353 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:56:16,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:16,353 INFO L85 PathProgramCache]: Analyzing trace with hash -481049050, now seen corresponding path program 1 times [2023-11-29 04:56:16,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:16,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465033660] [2023-11-29 04:56:16,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:16,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:16,413 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:16,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675418388] [2023-11-29 04:56:16,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:16,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:16,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:16,415 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:16,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 04:56:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:16,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 04:56:16,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:17,020 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:56:17,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:17,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:17,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465033660] [2023-11-29 04:56:17,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:17,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675418388] [2023-11-29 04:56:17,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675418388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:17,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:17,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:56:17,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132152794] [2023-11-29 04:56:17,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:17,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:56:17,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:17,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:56:17,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:56:17,024 INFO L87 Difference]: Start difference. First operand 527 states and 769 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:17,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:56:17,272 INFO L93 Difference]: Finished difference Result 1013 states and 1495 transitions. [2023-11-29 04:56:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:56:17,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-29 04:56:17,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:56:17,277 INFO L225 Difference]: With dead ends: 1013 [2023-11-29 04:56:17,277 INFO L226 Difference]: Without dead ends: 535 [2023-11-29 04:56:17,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:56:17,279 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 4 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:56:17,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1513 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:56:17,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-29 04:56:17,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 533. [2023-11-29 04:56:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 512 states have (on average 1.462890625) internal successors, (749), 527 states have internal predecessors, (749), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:56:17,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 775 transitions. [2023-11-29 04:56:17,305 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 775 transitions. Word has length 101 [2023-11-29 04:56:17,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:56:17,305 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 775 transitions. [2023-11-29 04:56:17,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:56:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 775 transitions. [2023-11-29 04:56:17,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 04:56:17,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:56:17,307 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:56:17,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 04:56:17,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 04:56:17,508 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:56:17,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:56:17,509 INFO L85 PathProgramCache]: Analyzing trace with hash -535441948, now seen corresponding path program 1 times [2023-11-29 04:56:17,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:56:17,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761779388] [2023-11-29 04:56:17,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:17,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:56:17,581 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:56:17,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585314271] [2023-11-29 04:56:17,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:56:17,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:56:17,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:56:17,583 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:56:17,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 04:56:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:56:18,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:56:18,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:56:56,633 WARN L293 SmtUtils]: Spent 8.99s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:56:56,658 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:56:56,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:56:56,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:56:56,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761779388] [2023-11-29 04:56:56,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:56:56,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585314271] [2023-11-29 04:56:56,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585314271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:56:56,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:56:56,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:56:56,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299649486] [2023-11-29 04:56:56,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:56:56,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:56:56,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:56:56,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:56:56,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=29, Unknown=2, NotChecked=0, Total=42 [2023-11-29 04:56:56,662 INFO L87 Difference]: Start difference. First operand 533 states and 775 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:57:00,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:04,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:06,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:10,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:14,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:19,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:23,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:27,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:31,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:35,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:39,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:41,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:57:41,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:57:41,644 INFO L93 Difference]: Finished difference Result 1019 states and 1499 transitions. [2023-11-29 04:57:41,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:57:41,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-29 04:57:41,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:57:41,649 INFO L225 Difference]: With dead ends: 1019 [2023-11-29 04:57:41,649 INFO L226 Difference]: Without dead ends: 543 [2023-11-29 04:57:41,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=15, Invalid=39, Unknown=2, NotChecked=0, Total=56 [2023-11-29 04:57:41,651 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 13 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:57:41,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2223 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 379 Invalid, 10 Unknown, 0 Unchecked, 44.9s Time] [2023-11-29 04:57:41,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-11-29 04:57:41,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 533. [2023-11-29 04:57:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 512 states have (on average 1.462890625) internal successors, (749), 527 states have internal predecessors, (749), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:57:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 775 transitions. [2023-11-29 04:57:41,668 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 775 transitions. Word has length 101 [2023-11-29 04:57:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:57:41,668 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 775 transitions. [2023-11-29 04:57:41,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:57:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 775 transitions. [2023-11-29 04:57:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 04:57:41,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:57:41,670 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:57:41,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 04:57:41,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 04:57:41,870 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:57:41,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:57:41,871 INFO L85 PathProgramCache]: Analyzing trace with hash 450853088, now seen corresponding path program 1 times [2023-11-29 04:57:41,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:57:41,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066908447] [2023-11-29 04:57:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:57:41,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:57:41,917 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:57:41,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065047424] [2023-11-29 04:57:41,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:57:41,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:57:41,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:57:41,918 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:57:41,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 04:57:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:57:42,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:57:42,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:57:42,459 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:57:42,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:57:42,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:57:42,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066908447] [2023-11-29 04:57:42,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:57:42,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065047424] [2023-11-29 04:57:42,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065047424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:57:42,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:57:42,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:57:42,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885174467] [2023-11-29 04:57:42,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:57:42,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:57:42,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:57:42,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:57:42,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:57:42,461 INFO L87 Difference]: Start difference. First operand 533 states and 775 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:57:42,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:57:42,838 INFO L93 Difference]: Finished difference Result 1015 states and 1492 transitions. [2023-11-29 04:57:42,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:57:42,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-29 04:57:42,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:57:42,843 INFO L225 Difference]: With dead ends: 1015 [2023-11-29 04:57:42,843 INFO L226 Difference]: Without dead ends: 543 [2023-11-29 04:57:42,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:57:42,845 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 37 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:57:42,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2230 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:57:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-11-29 04:57:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 537. [2023-11-29 04:57:42,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 516 states have (on average 1.4593023255813953) internal successors, (753), 531 states have internal predecessors, (753), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 04:57:42,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 779 transitions. [2023-11-29 04:57:42,868 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 779 transitions. Word has length 101 [2023-11-29 04:57:42,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:57:42,868 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 779 transitions. [2023-11-29 04:57:42,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:57:42,869 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 779 transitions. [2023-11-29 04:57:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 04:57:42,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:57:42,870 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:57:42,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 04:57:43,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:57:43,071 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:57:43,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:57:43,071 INFO L85 PathProgramCache]: Analyzing trace with hash 388138692, now seen corresponding path program 1 times [2023-11-29 04:57:43,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:57:43,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854767556] [2023-11-29 04:57:43,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:57:43,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:57:43,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:57:43,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565438731] [2023-11-29 04:57:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:57:43,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:57:43,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:57:43,132 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:57:43,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 04:57:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:57:44,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:57:44,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:57:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 04:57:44,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:57:44,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:57:44,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854767556] [2023-11-29 04:57:44,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:57:44,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565438731] [2023-11-29 04:57:44,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565438731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:57:44,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:57:44,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:57:44,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744283231] [2023-11-29 04:57:44,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:57:44,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:57:44,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:57:44,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:57:44,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:57:44,287 INFO L87 Difference]: Start difference. First operand 537 states and 779 transitions. Second operand has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:57:44,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:57:44,337 INFO L93 Difference]: Finished difference Result 986 states and 1445 transitions. [2023-11-29 04:57:44,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:57:44,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2023-11-29 04:57:44,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:57:44,342 INFO L225 Difference]: With dead ends: 986 [2023-11-29 04:57:44,342 INFO L226 Difference]: Without dead ends: 539 [2023-11-29 04:57:44,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:57:44,344 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 1 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:57:44,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1289 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:57:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-11-29 04:57:44,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2023-11-29 04:57:44,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 517 states have (on average 1.460348162475822) internal successors, (755), 533 states have internal predecessors, (755), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 04:57:44,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 782 transitions. [2023-11-29 04:57:44,367 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 782 transitions. Word has length 101 [2023-11-29 04:57:44,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:57:44,368 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 782 transitions. [2023-11-29 04:57:44,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:57:44,368 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 782 transitions. [2023-11-29 04:57:44,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:57:44,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:57:44,370 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:57:44,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 04:57:44,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 04:57:44,570 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:57:44,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:57:44,571 INFO L85 PathProgramCache]: Analyzing trace with hash 907554292, now seen corresponding path program 1 times [2023-11-29 04:57:44,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:57:44,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564362270] [2023-11-29 04:57:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:57:44,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:57:44,624 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:57:44,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071536879] [2023-11-29 04:57:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:57:44,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:57:44,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:57:44,626 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:57:44,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 04:57:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:57:45,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 04:57:45,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:57:45,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:57:45,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:57:45,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 04:57:45,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:57:45,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 04:57:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 04:57:45,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:57:45,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:57:45,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564362270] [2023-11-29 04:57:45,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:57:45,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071536879] [2023-11-29 04:57:45,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071536879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:57:45,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:57:45,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:57:45,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854235120] [2023-11-29 04:57:45,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:57:45,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:57:45,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:57:45,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:57:45,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:57:45,759 INFO L87 Difference]: Start difference. First operand 539 states and 782 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:57:47,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:57:47,563 INFO L93 Difference]: Finished difference Result 1264 states and 1864 transitions. [2023-11-29 04:57:47,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:57:47,564 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 103 [2023-11-29 04:57:47,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:57:47,569 INFO L225 Difference]: With dead ends: 1264 [2023-11-29 04:57:47,569 INFO L226 Difference]: Without dead ends: 770 [2023-11-29 04:57:47,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:57:47,571 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 668 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:57:47,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 3140 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:57:47,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-11-29 04:57:47,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 535. [2023-11-29 04:57:47,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 513 states have (on average 1.4600389863547758) internal successors, (749), 529 states have internal predecessors, (749), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 04:57:47,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 776 transitions. [2023-11-29 04:57:47,591 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 776 transitions. Word has length 103 [2023-11-29 04:57:47,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:57:47,591 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 776 transitions. [2023-11-29 04:57:47,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:57:47,591 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 776 transitions. [2023-11-29 04:57:47,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 04:57:47,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:57:47,593 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:57:47,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 04:57:47,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 04:57:47,794 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:57:47,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:57:47,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1558205175, now seen corresponding path program 1 times [2023-11-29 04:57:47,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:57:47,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716723563] [2023-11-29 04:57:47,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:57:47,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:57:47,850 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:57:47,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [98110911] [2023-11-29 04:57:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:57:47,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:57:47,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:57:47,852 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:57:47,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babb0f05-1a94-458d-a675-997f55e43899/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 04:57:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:57:48,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 120 conjunts are in the unsatisfiable core [2023-11-29 04:57:48,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:57:48,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:57:48,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:57:48,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:57:49,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:57:49,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:57:49,283 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 04:57:49,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-11-29 04:57:49,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:57:49,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 04:57:49,502 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:57:49,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 04:57:49,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-29 04:58:54,284 INFO L224 Elim1Store]: Index analysis took 1362 ms