./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/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_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb908db72ba36ea117840dd5fbb64fa4a3fa2c38f97ab7aadd1067bcbc12251b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:07:42,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:07:42,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:07:42,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:07:42,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:07:42,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:07:42,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:07:42,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:07:42,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:07:42,740 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:07:42,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:07:42,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:07:42,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:07:42,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:07:42,743 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:07:42,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:07:42,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:07:42,745 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:07:42,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:07:42,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:07:42,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:07:42,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:07:42,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:07:42,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:07:42,752 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:07:42,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:07:42,753 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:07:42,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:07:42,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:07:42,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:07:42,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:07:42,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:07:42,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:07:42,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:07:42,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:07:42,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:07:42,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:07:42,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:07:42,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:07:42,757 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:07:42,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:07:42,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:07:42,758 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_b3ba6219-0595-405f-8427-c636b1dbf91a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb908db72ba36ea117840dd5fbb64fa4a3fa2c38f97ab7aadd1067bcbc12251b [2023-11-29 04:07:42,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:07:42,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:07:42,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:07:42,975 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:07:42,975 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:07:42,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i [2023-11-29 04:07:45,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:07:45,874 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:07:45,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i [2023-11-29 04:07:45,884 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/data/a2a16bb48/99376422aaa24e4094b368a77b288b4a/FLAG240260eb1 [2023-11-29 04:07:45,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/data/a2a16bb48/99376422aaa24e4094b368a77b288b4a [2023-11-29 04:07:45,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:07:45,900 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:07:45,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:07:45,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:07:45,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:07:45,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:07:45" (1/1) ... [2023-11-29 04:07:45,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c487c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:45, skipping insertion in model container [2023-11-29 04:07:45,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:07:45" (1/1) ... [2023-11-29 04:07:45,935 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:07:46,050 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i[915,928] [2023-11-29 04:07:46,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:07:46,116 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:07:46,126 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i[915,928] [2023-11-29 04:07:46,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:07:46,175 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:07:46,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46 WrapperNode [2023-11-29 04:07:46,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:07:46,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:07:46,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:07:46,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:07:46,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,228 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 157 [2023-11-29 04:07:46,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:07:46,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:07:46,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:07:46,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:07:46,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,243 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,261 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:07:46,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:07:46,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:07:46,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:07:46,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:07:46,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (1/1) ... [2023-11-29 04:07:46,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:07:46,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:46,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:07:46,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:07:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:07:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:07:46,353 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:07:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:07:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:07:46,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:07:46,436 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:07:46,438 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:07:46,715 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:07:46,756 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:07:46,756 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:07:46,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:07:46 BoogieIcfgContainer [2023-11-29 04:07:46,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:07:46,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:07:46,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:07:46,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:07:46,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:07:45" (1/3) ... [2023-11-29 04:07:46,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b395dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:07:46, skipping insertion in model container [2023-11-29 04:07:46,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:07:46" (2/3) ... [2023-11-29 04:07:46,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b395dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:07:46, skipping insertion in model container [2023-11-29 04:07:46,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:07:46" (3/3) ... [2023-11-29 04:07:46,764 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-13.i [2023-11-29 04:07:46,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:07:46,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:07:46,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:07:46,828 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;@53d99c07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:07:46,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:07:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 39 states have internal predecessors, (55), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:07:46,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:07:46,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:46,846 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:46,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:46,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:46,851 INFO L85 PathProgramCache]: Analyzing trace with hash -875121768, now seen corresponding path program 1 times [2023-11-29 04:07:46,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:46,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794645547] [2023-11-29 04:07:46,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:46,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:47,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:47,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794645547] [2023-11-29 04:07:47,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 04:07:47,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537774030] [2023-11-29 04:07:47,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:47,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:47,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:47,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:47,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:07:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:47,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:07:47,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:47,276 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-11-29 04:07:47,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:07:47,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537774030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:47,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:47,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:07:47,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709804493] [2023-11-29 04:07:47,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:47,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:07:47,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:47,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:07:47,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:07:47,313 INFO L87 Difference]: Start difference. First operand has 61 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 39 states have internal predecessors, (55), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 04:07:47,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:47,352 INFO L93 Difference]: Finished difference Result 121 states and 209 transitions. [2023-11-29 04:07:47,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:07:47,355 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 130 [2023-11-29 04:07:47,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:47,362 INFO L225 Difference]: With dead ends: 121 [2023-11-29 04:07:47,362 INFO L226 Difference]: Without dead ends: 59 [2023-11-29 04:07:47,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 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 04:07:47,368 INFO L413 NwaCegarLoop]: 86 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, 86 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 04:07:47,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:07:47,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-29 04:07:47,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-29 04:07:47,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:07:47,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 89 transitions. [2023-11-29 04:07:47,410 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 89 transitions. Word has length 130 [2023-11-29 04:07:47,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:47,410 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 89 transitions. [2023-11-29 04:07:47,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 04:07:47,411 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions. [2023-11-29 04:07:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:07:47,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:47,415 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:47,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:07:47,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 04:07:47,616 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:47,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1725947792, now seen corresponding path program 1 times [2023-11-29 04:07:47,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:47,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308640691] [2023-11-29 04:07:47,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:47,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:47,679 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:07:47,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651723573] [2023-11-29 04:07:47,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:47,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:47,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:47,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:47,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:07:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:47,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:07:47,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 04:07:47,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:07:47,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:47,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308640691] [2023-11-29 04:07:47,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:07:47,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651723573] [2023-11-29 04:07:47,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651723573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:47,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:47,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:07:47,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988753753] [2023-11-29 04:07:47,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:47,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:07:47,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:47,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:07:47,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:07:47,888 INFO L87 Difference]: Start difference. First operand 59 states and 89 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:47,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:47,933 INFO L93 Difference]: Finished difference Result 148 states and 220 transitions. [2023-11-29 04:07:47,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:07:47,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2023-11-29 04:07:47,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:47,937 INFO L225 Difference]: With dead ends: 148 [2023-11-29 04:07:47,937 INFO L226 Difference]: Without dead ends: 90 [2023-11-29 04:07:47,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 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 04:07:47,940 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 36 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:47,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 190 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:07:47,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-29 04:07:47,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2023-11-29 04:07:47,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 59 states have internal predecessors, (77), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 04:07:47,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 129 transitions. [2023-11-29 04:07:47,961 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 129 transitions. Word has length 130 [2023-11-29 04:07:47,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:47,962 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 129 transitions. [2023-11-29 04:07:47,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:47,962 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 129 transitions. [2023-11-29 04:07:47,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:07:47,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:47,965 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:47,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:07:48,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:48,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:48,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:48,168 INFO L85 PathProgramCache]: Analyzing trace with hash 714830542, now seen corresponding path program 1 times [2023-11-29 04:07:48,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:48,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353279476] [2023-11-29 04:07:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:48,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:48,214 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:07:48,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845205744] [2023-11-29 04:07:48,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:48,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:48,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:48,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:48,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:07:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:48,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:07:48,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 04:07:48,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:07:48,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:48,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353279476] [2023-11-29 04:07:48,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:07:48,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845205744] [2023-11-29 04:07:48,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845205744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:48,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:48,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:07:48,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989921865] [2023-11-29 04:07:48,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:48,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:07:48,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:48,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:07:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:07:48,658 INFO L87 Difference]: Start difference. First operand 87 states and 129 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:48,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:48,930 INFO L93 Difference]: Finished difference Result 331 states and 483 transitions. [2023-11-29 04:07:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:07:48,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2023-11-29 04:07:48,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:48,936 INFO L225 Difference]: With dead ends: 331 [2023-11-29 04:07:48,936 INFO L226 Difference]: Without dead ends: 245 [2023-11-29 04:07:48,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:07:48,939 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 232 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:48,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 400 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:07:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-11-29 04:07:48,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 205. [2023-11-29 04:07:48,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 148 states have (on average 1.3445945945945945) internal successors, (199), 150 states have internal predecessors, (199), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-29 04:07:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 303 transitions. [2023-11-29 04:07:48,981 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 303 transitions. Word has length 130 [2023-11-29 04:07:48,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:48,982 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 303 transitions. [2023-11-29 04:07:48,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:48,982 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 303 transitions. [2023-11-29 04:07:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:07:48,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:48,985 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:48,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:07:49,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:49,190 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:49,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:49,191 INFO L85 PathProgramCache]: Analyzing trace with hash 972995980, now seen corresponding path program 1 times [2023-11-29 04:07:49,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:49,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437047105] [2023-11-29 04:07:49,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:49,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:49,226 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:07:49,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296895734] [2023-11-29 04:07:49,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:49,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:49,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:49,228 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:49,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:07:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:49,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:07:49,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 04:07:49,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:07:49,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:49,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437047105] [2023-11-29 04:07:49,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:07:49,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296895734] [2023-11-29 04:07:49,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296895734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:49,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:49,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:07:49,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262965869] [2023-11-29 04:07:49,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:49,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:07:49,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:49,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:07:49,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:07:49,905 INFO L87 Difference]: Start difference. First operand 205 states and 303 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:50,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:50,140 INFO L93 Difference]: Finished difference Result 501 states and 741 transitions. [2023-11-29 04:07:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:07:50,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2023-11-29 04:07:50,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:50,145 INFO L225 Difference]: With dead ends: 501 [2023-11-29 04:07:50,145 INFO L226 Difference]: Without dead ends: 297 [2023-11-29 04:07:50,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:07:50,148 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 87 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:50,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 347 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:07:50,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-11-29 04:07:50,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 244. [2023-11-29 04:07:50,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 166 states have (on average 1.3132530120481927) internal successors, (218), 168 states have internal predecessors, (218), 72 states have call successors, (72), 5 states have call predecessors, (72), 5 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-29 04:07:50,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 362 transitions. [2023-11-29 04:07:50,196 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 362 transitions. Word has length 130 [2023-11-29 04:07:50,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:50,197 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 362 transitions. [2023-11-29 04:07:50,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:50,197 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 362 transitions. [2023-11-29 04:07:50,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:07:50,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:50,199 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:50,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 04:07:50,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:50,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:50,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:50,402 INFO L85 PathProgramCache]: Analyzing trace with hash -306237812, now seen corresponding path program 1 times [2023-11-29 04:07:50,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:50,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646295380] [2023-11-29 04:07:50,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:50,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:50,436 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:07:50,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179731371] [2023-11-29 04:07:50,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:50,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:50,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:50,437 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:50,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:07:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:50,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:07:50,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:50,628 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 04:07:50,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:07:50,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:50,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646295380] [2023-11-29 04:07:50,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:07:50,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179731371] [2023-11-29 04:07:50,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179731371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:50,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:50,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:07:50,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188322239] [2023-11-29 04:07:50,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:50,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:07:50,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:50,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:07:50,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:07:50,632 INFO L87 Difference]: Start difference. First operand 244 states and 362 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:50,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:50,697 INFO L93 Difference]: Finished difference Result 519 states and 769 transitions. [2023-11-29 04:07:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:07:50,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2023-11-29 04:07:50,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:50,701 INFO L225 Difference]: With dead ends: 519 [2023-11-29 04:07:50,701 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 04:07:50,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 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 04:07:50,703 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 18 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:50,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 150 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:07:50,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 04:07:50,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 297. [2023-11-29 04:07:50,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 219 states have (on average 1.360730593607306) internal successors, (298), 221 states have internal predecessors, (298), 72 states have call successors, (72), 5 states have call predecessors, (72), 5 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-29 04:07:50,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 442 transitions. [2023-11-29 04:07:50,740 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 442 transitions. Word has length 130 [2023-11-29 04:07:50,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:50,741 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 442 transitions. [2023-11-29 04:07:50,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:50,742 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 442 transitions. [2023-11-29 04:07:50,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:07:50,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:50,744 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:50,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:07:50,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:50,944 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:50,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:50,945 INFO L85 PathProgramCache]: Analyzing trace with hash -306178230, now seen corresponding path program 1 times [2023-11-29 04:07:50,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:50,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182360608] [2023-11-29 04:07:50,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:50,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:50,973 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:07:50,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146390325] [2023-11-29 04:07:50,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:50,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:50,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:50,974 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:50,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:07:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:51,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:07:51,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:51,263 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2023-11-29 04:07:51,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:07:51,446 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-29 04:07:51,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:51,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182360608] [2023-11-29 04:07:51,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:07:51,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146390325] [2023-11-29 04:07:51,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146390325] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:07:51,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:07:51,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 04:07:51,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464785552] [2023-11-29 04:07:51,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:07:51,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:07:51,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:51,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:07:51,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:07:51,450 INFO L87 Difference]: Start difference. First operand 297 states and 442 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-29 04:07:51,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:51,870 INFO L93 Difference]: Finished difference Result 877 states and 1274 transitions. [2023-11-29 04:07:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:07:51,872 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 130 [2023-11-29 04:07:51,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:51,877 INFO L225 Difference]: With dead ends: 877 [2023-11-29 04:07:51,877 INFO L226 Difference]: Without dead ends: 620 [2023-11-29 04:07:51,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:07:51,879 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 248 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:51,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 236 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:07:51,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-11-29 04:07:51,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 337. [2023-11-29 04:07:51,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 254 states have (on average 1.3267716535433072) internal successors, (337), 256 states have internal predecessors, (337), 72 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-29 04:07:51,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 481 transitions. [2023-11-29 04:07:51,918 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 481 transitions. Word has length 130 [2023-11-29 04:07:51,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:51,918 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 481 transitions. [2023-11-29 04:07:51,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-29 04:07:51,919 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 481 transitions. [2023-11-29 04:07:51,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:07:51,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:51,920 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:51,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:07:52,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 04:07:52,126 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:52,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:52,127 INFO L85 PathProgramCache]: Analyzing trace with hash -48012792, now seen corresponding path program 1 times [2023-11-29 04:07:52,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:52,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21058783] [2023-11-29 04:07:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:52,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:52,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:07:52,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889978914] [2023-11-29 04:07:52,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:52,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:52,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:52,156 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:52,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:07:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:52,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:07:52,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:07:53,109 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 04:07:53,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:07:53,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:53,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21058783] [2023-11-29 04:07:53,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:07:53,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889978914] [2023-11-29 04:07:53,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889978914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:53,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:53,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:07:53,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337704733] [2023-11-29 04:07:53,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:53,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:07:53,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:53,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:07:53,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:07:53,112 INFO L87 Difference]: Start difference. First operand 337 states and 481 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:53,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:53,331 INFO L93 Difference]: Finished difference Result 727 states and 1036 transitions. [2023-11-29 04:07:53,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:07:53,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130 [2023-11-29 04:07:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:53,335 INFO L225 Difference]: With dead ends: 727 [2023-11-29 04:07:53,335 INFO L226 Difference]: Without dead ends: 434 [2023-11-29 04:07:53,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:07:53,337 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 81 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:53,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 348 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:07:53,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-29 04:07:53,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 338. [2023-11-29 04:07:53,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 255 states have (on average 1.3254901960784313) internal successors, (338), 257 states have internal predecessors, (338), 72 states have call successors, (72), 10 states have call predecessors, (72), 10 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-29 04:07:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 482 transitions. [2023-11-29 04:07:53,363 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 482 transitions. Word has length 130 [2023-11-29 04:07:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:53,364 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 482 transitions. [2023-11-29 04:07:53,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:07:53,365 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 482 transitions. [2023-11-29 04:07:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 04:07:53,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:53,366 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:07:53,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 04:07:53,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 04:07:53,567 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:07:53,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:53,568 INFO L85 PathProgramCache]: Analyzing trace with hash -357447655, now seen corresponding path program 1 times [2023-11-29 04:07:53,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:53,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000768251] [2023-11-29 04:07:53,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:53,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:53,592 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:07:53,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474424192] [2023-11-29 04:07:53,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:53,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:53,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:07:53,594 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:07:53,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:07:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:07:54,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:07:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:07:54,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:07:54,432 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:07:54,433 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 04:07:54,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 04:07:54,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:07:54,642 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:07:54,644 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:07:54,714 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 04:07:54,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-29 04:07:54,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:07:54 BoogieIcfgContainer [2023-11-29 04:07:54,737 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:07:54,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:07:54,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:07:54,738 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:07:54,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:07:46" (3/4) ... [2023-11-29 04:07:54,741 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:07:54,742 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:07:54,742 INFO L158 Benchmark]: Toolchain (without parser) took 8842.53ms. Allocated memory was 165.7MB in the beginning and 201.3MB in the end (delta: 35.7MB). Free memory was 134.7MB in the beginning and 105.7MB in the end (delta: 29.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-29 04:07:54,742 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:07:54,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.18ms. Allocated memory is still 165.7MB. Free memory was 134.7MB in the beginning and 120.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:07:54,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.77ms. Allocated memory is still 165.7MB. Free memory was 120.9MB in the beginning and 117.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:07:54,743 INFO L158 Benchmark]: Boogie Preprocessor took 54.03ms. Allocated memory is still 165.7MB. Free memory was 117.2MB in the beginning and 112.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:07:54,744 INFO L158 Benchmark]: RCFGBuilder took 472.58ms. Allocated memory is still 165.7MB. Free memory was 112.0MB in the beginning and 88.6MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-29 04:07:54,744 INFO L158 Benchmark]: TraceAbstraction took 7978.53ms. Allocated memory was 165.7MB in the beginning and 201.3MB in the end (delta: 35.7MB). Free memory was 87.8MB in the beginning and 105.7MB in the end (delta: -17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 04:07:54,744 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 201.3MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:07:54,746 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.18ms. Allocated memory is still 165.7MB. Free memory was 134.7MB in the beginning and 120.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.77ms. Allocated memory is still 165.7MB. Free memory was 120.9MB in the beginning and 117.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.03ms. Allocated memory is still 165.7MB. Free memory was 117.2MB in the beginning and 112.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 472.58ms. Allocated memory is still 165.7MB. Free memory was 112.0MB in the beginning and 88.6MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7978.53ms. Allocated memory was 165.7MB in the beginning and 201.3MB in the end (delta: 35.7MB). Free memory was 87.8MB in the beginning and 105.7MB in the end (delta: -17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 201.3MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 127. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 32; [L23] signed char var_1_4 = 16; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 1; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_9 = 0; [L28] unsigned char var_1_10 = 128; [L29] unsigned char var_1_11 = 64; [L30] signed char var_1_12 = -10; [L31] signed char var_1_13 = -10; [L32] signed char var_1_14 = -25; [L33] double var_1_15 = 64.875; [L34] double var_1_17 = 1.625; [L35] double var_1_18 = 32.2; [L36] double var_1_19 = 8.6; [L37] double var_1_20 = 10.5; [L38] signed short int var_1_21 = -64; [L39] unsigned char var_1_22 = 25; [L40] unsigned char var_1_23 = 0; [L41] unsigned long int var_1_24 = 5; [L42] signed short int last_1_var_1_21 = -64; [L43] unsigned char last_1_var_1_22 = 25; [L131] isInitial = 1 [L132] FCALL initially() [L133] int k_loop; [L134] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=16, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L134] COND TRUE k_loop < 1 [L135] CALL updateLastVariables() [L123] last_1_var_1_21 = var_1_21 [L124] last_1_var_1_22 = var_1_22 [L135] RET updateLastVariables() [L136] CALL updateVariables() [L89] var_1_4 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L90] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L91] CALL assume_abort_if_not(var_1_4 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L91] RET assume_abort_if_not(var_1_4 <= 32) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L92] var_1_5 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_6=1, var_1_8=1, var_1_9=0] [L93] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_6=1, var_1_8=1, var_1_9=0] [L94] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L94] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L95] var_1_6 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_8=1, var_1_9=0] [L96] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_8=1, var_1_9=0] [L97] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L97] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L98] var_1_9 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1] [L99] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1] [L100] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L100] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L101] var_1_10 = __VERIFIER_nondet_uchar() [L102] CALL assume_abort_if_not(var_1_10 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L102] RET assume_abort_if_not(var_1_10 >= 127) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L103] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L103] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L104] var_1_11 = __VERIFIER_nondet_uchar() [L105] CALL assume_abort_if_not(var_1_11 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L105] RET assume_abort_if_not(var_1_11 >= 63) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L106] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L106] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L107] var_1_13 = __VERIFIER_nondet_char() [L108] CALL assume_abort_if_not(var_1_13 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L108] RET assume_abort_if_not(var_1_13 >= -31) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L109] CALL assume_abort_if_not(var_1_13 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L109] RET assume_abort_if_not(var_1_13 <= 31) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L110] var_1_14 = __VERIFIER_nondet_char() [L111] CALL assume_abort_if_not(var_1_14 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L111] RET assume_abort_if_not(var_1_14 >= -63) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L112] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L112] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L113] var_1_17 = __VERIFIER_nondet_double() [L114] CALL assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L114] RET assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L115] var_1_18 = __VERIFIER_nondet_double() [L116] CALL assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L116] RET assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L117] var_1_19 = __VERIFIER_nondet_double() [L118] CALL assume_abort_if_not((var_1_19 >= -230584.3009213691390e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 2305843.009213691390e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L118] RET assume_abort_if_not((var_1_19 >= -230584.3009213691390e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 2305843.009213691390e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L119] var_1_20 = __VERIFIER_nondet_double() [L120] CALL assume_abort_if_not((var_1_20 >= -230584.3009213691390e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 2305843.009213691390e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L120] RET assume_abort_if_not((var_1_20 >= -230584.3009213691390e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 2305843.009213691390e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L136] RET updateVariables() [L137] CALL step() [L47] signed long int stepLocal_1 = ~ last_1_var_1_21; [L48] unsigned char stepLocal_0 = var_1_5; VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L49] EXPR last_1_var_1_22 >> var_1_4 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L49] COND TRUE stepLocal_1 != (last_1_var_1_22 >> var_1_4) [L50] COND TRUE stepLocal_0 || var_1_6 [L51] var_1_1 = var_1_4 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=0, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L58] COND FALSE !(\read(var_1_9)) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=0, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L61] unsigned short int stepLocal_3 = var_1_1; VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=519/8, var_1_1=0, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L62] COND FALSE !(var_1_4 > stepLocal_3) [L65] var_1_15 = var_1_17 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L67] COND TRUE ((- var_1_11) < 8) || var_1_9 [L68] var_1_22 = (var_1_4 + ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=127, var_1_23=0, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L70] var_1_23 = (var_1_11 + var_1_4) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=127, var_1_23=127, var_1_24=5, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L71] COND TRUE var_1_18 <= var_1_20 [L72] var_1_24 = ((((var_1_8) < ((var_1_8 + var_1_11))) ? (var_1_8) : ((var_1_8 + var_1_11)))) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=127, var_1_23=127, var_1_24=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L78] COND FALSE !(var_1_6 || var_1_9) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_3=0, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=127, var_1_23=127, var_1_24=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L83] signed short int stepLocal_2 = var_1_21; VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=127, var_1_12=-10, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=127, var_1_23=127, var_1_24=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L84] COND TRUE var_1_10 > stepLocal_2 [L85] var_1_12 = ((var_1_4 + var_1_13) + var_1_14) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, stepLocal_0=1, stepLocal_1=63, stepLocal_2=-64, stepLocal_3=0, var_1_10=127, var_1_11=127, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=127, var_1_23=127, var_1_24=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L137] RET step() [L138] CALL, EXPR property() [L127] EXPR last_1_var_1_22 >> var_1_4 VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=127, var_1_23=127, var_1_24=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L127-L128] return (((((((((~ last_1_var_1_21) != (last_1_var_1_22 >> var_1_4)) ? ((var_1_5 || var_1_6) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) last_1_var_1_22))) : (var_1_1 == ((unsigned short int) 100))) && (var_1_9 ? (var_1_8 == ((unsigned char) (var_1_10 - (var_1_11 - var_1_4)))) : 1)) && ((var_1_10 > var_1_21) ? (var_1_12 == ((signed char) ((var_1_4 + var_1_13) + var_1_14))) : 1)) && ((var_1_4 > var_1_1) ? (var_1_15 == ((double) ((var_1_17 - var_1_18) + (((((var_1_19) > (499.25)) ? (var_1_19) : (499.25))) + var_1_20)))) : (var_1_15 == ((double) var_1_17)))) && ((var_1_6 || var_1_9) ? (((var_1_24 % var_1_10) > var_1_22) ? (var_1_21 == ((signed short int) (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) + var_1_14))) : 1) : 1)) && ((((- var_1_11) < 8) || var_1_9) ? (var_1_22 == ((unsigned char) (var_1_4 + ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))) : 1)) && (var_1_23 == ((unsigned char) (var_1_11 + var_1_4)))) && ((var_1_18 <= var_1_20) ? (var_1_24 == ((unsigned long int) ((((var_1_8) < ((var_1_8 + var_1_11))) ? (var_1_8) : ((var_1_8 + var_1_11)))))) : ((9.99999999999998E13 < var_1_20) ? (var_1_24 == ((unsigned long int) var_1_1)) : 1)) ; [L138] RET, EXPR property() [L138] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=127, var_1_23=127, var_1_24=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=127, var_1_12=0, var_1_13=31, var_1_14=-31, var_1_15=2, var_1_17=2, var_1_1=0, var_1_21=-64, var_1_22=127, var_1_23=127, var_1_24=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_8=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 8, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 702 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 702 mSDsluCounter, 1757 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1200 mSDsCounter, 136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 723 IncrementalHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 136 mSolverCounterUnsat, 557 mSDtfsCounter, 723 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1058 GetRequests, 1008 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=7, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 493 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1171 NumberOfCodeBlocks, 1171 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1032 ConstructedInterpolants, 0 QuantifiedInterpolants, 3826 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2232 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 5972/6080 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 04:07:54,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/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_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb908db72ba36ea117840dd5fbb64fa4a3fa2c38f97ab7aadd1067bcbc12251b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:07:56,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:07:56,725 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 04:07:56,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:07:56,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:07:56,756 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:07:56,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:07:56,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:07:56,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:07:56,758 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:07:56,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:07:56,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:07:56,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:07:56,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:07:56,761 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:07:56,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:07:56,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:07:56,762 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:07:56,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:07:56,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:07:56,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:07:56,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:07:56,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:07:56,766 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:07:56,767 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:07:56,767 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:07:56,767 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:07:56,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:07:56,768 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:07:56,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:07:56,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:07:56,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:07:56,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:07:56,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:07:56,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:07:56,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:07:56,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:07:56,770 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:07:56,770 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:07:56,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:07:56,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:07:56,771 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:07:56,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:07:56,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:07:56,772 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:07:56,772 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_b3ba6219-0595-405f-8427-c636b1dbf91a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb908db72ba36ea117840dd5fbb64fa4a3fa2c38f97ab7aadd1067bcbc12251b [2023-11-29 04:07:57,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:07:57,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:07:57,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:07:57,110 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:07:57,110 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:07:57,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i [2023-11-29 04:07:59,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:08:00,068 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:08:00,069 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i [2023-11-29 04:08:00,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/data/2159e8777/f445b40e0b604319aea4718ff2ef3d9e/FLAGcda62f263 [2023-11-29 04:08:00,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/data/2159e8777/f445b40e0b604319aea4718ff2ef3d9e [2023-11-29 04:08:00,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:08:00,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:08:00,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:08:00,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:08:00,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:08:00,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bdbea89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00, skipping insertion in model container [2023-11-29 04:08:00,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:08:00,257 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i[915,928] [2023-11-29 04:08:00,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:08:00,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:08:00,343 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-13.i[915,928] [2023-11-29 04:08:00,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:08:00,403 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:08:00,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00 WrapperNode [2023-11-29 04:08:00,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:08:00,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:08:00,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:08:00,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:08:00,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,484 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 145 [2023-11-29 04:08:00,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:08:00,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:08:00,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:08:00,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:08:00,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,516 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:08:00,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:08:00,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:08:00,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:08:00,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:08:00,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (1/1) ... [2023-11-29 04:08:00,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:08:00,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:08:00,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:08:00,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:08:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:08:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:08:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:08:00,607 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:08:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:08:00,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:08:00,693 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:08:00,695 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:08:04,001 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:08:04,048 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:08:04,048 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:08:04,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:08:04 BoogieIcfgContainer [2023-11-29 04:08:04,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:08:04,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:08:04,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:08:04,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:08:04,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:08:00" (1/3) ... [2023-11-29 04:08:04,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff63489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:08:04, skipping insertion in model container [2023-11-29 04:08:04,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:08:00" (2/3) ... [2023-11-29 04:08:04,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff63489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:08:04, skipping insertion in model container [2023-11-29 04:08:04,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:08:04" (3/3) ... [2023-11-29 04:08:04,059 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-13.i [2023-11-29 04:08:04,078 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:08:04,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:08:04,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:08:04,130 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;@54d8eeb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:08:04,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:08:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:08:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 04:08:04,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:08:04,149 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:08:04,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:08:04,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:08:04,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1928039424, now seen corresponding path program 1 times [2023-11-29 04:08:04,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:08:04,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897637931] [2023-11-29 04:08:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:08:04,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:08:04,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:08:04,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:08:04,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 04:08:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:08:04,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:08:04,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:08:04,591 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2023-11-29 04:08:04,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:08:04,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:08:04,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897637931] [2023-11-29 04:08:04,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897637931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:08:04,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:08:04,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:08:04,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696885495] [2023-11-29 04:08:04,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:08:04,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:08:04,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:08:04,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:08:04,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:08:04,630 INFO L87 Difference]: Start difference. First operand has 58 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 04:08:07,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 04:08:07,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:08:07,982 INFO L93 Difference]: Finished difference Result 115 states and 199 transitions. [2023-11-29 04:08:07,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:08:07,985 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 127 [2023-11-29 04:08:07,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:08:07,990 INFO L225 Difference]: With dead ends: 115 [2023-11-29 04:08:07,991 INFO L226 Difference]: Without dead ends: 56 [2023-11-29 04:08:07,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 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 04:08:07,996 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:08:07,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 04:08:08,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-29 04:08:08,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-29 04:08:08,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:08:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 84 transitions. [2023-11-29 04:08:08,029 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 84 transitions. Word has length 127 [2023-11-29 04:08:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:08:08,030 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 84 transitions. [2023-11-29 04:08:08,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 04:08:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 84 transitions. [2023-11-29 04:08:08,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 04:08:08,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:08:08,033 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:08:08,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:08:08,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:08:08,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:08:08,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:08:08,235 INFO L85 PathProgramCache]: Analyzing trace with hash 335192840, now seen corresponding path program 1 times [2023-11-29 04:08:08,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:08:08,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047757124] [2023-11-29 04:08:08,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:08:08,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:08:08,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:08:08,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:08:08,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 04:08:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:08:08,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:08:08,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:08:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 04:08:09,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:08:09,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:08:09,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047757124] [2023-11-29 04:08:09,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047757124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:08:09,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:08:09,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:08:09,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793063848] [2023-11-29 04:08:09,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:08:09,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:08:09,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:08:09,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:08:09,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:08:09,838 INFO L87 Difference]: Start difference. First operand 56 states and 84 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:08:13,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 04:08:15,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 04:08:15,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:08:15,524 INFO L93 Difference]: Finished difference Result 167 states and 251 transitions. [2023-11-29 04:08:15,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:08:15,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 127 [2023-11-29 04:08:15,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:08:15,527 INFO L225 Difference]: With dead ends: 167 [2023-11-29 04:08:15,527 INFO L226 Difference]: Without dead ends: 112 [2023-11-29 04:08:15,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:08:15,529 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 72 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:08:15,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 265 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-29 04:08:15,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-29 04:08:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 94. [2023-11-29 04:08:15,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 51 states have (on average 1.196078431372549) internal successors, (61), 51 states have internal predecessors, (61), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-29 04:08:15,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2023-11-29 04:08:15,561 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 127 [2023-11-29 04:08:15,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:08:15,563 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2023-11-29 04:08:15,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:08:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2023-11-29 04:08:15,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 04:08:15,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:08:15,566 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:08:15,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-29 04:08:15,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:08:15,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:08:15,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:08:15,771 INFO L85 PathProgramCache]: Analyzing trace with hash 461188243, now seen corresponding path program 1 times [2023-11-29 04:08:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:08:15,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733301308] [2023-11-29 04:08:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:08:15,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:08:15,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:08:15,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:08:15,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 04:08:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:08:16,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:08:16,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:08:17,168 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 40 proven. 108 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 04:08:17,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:08:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 04:08:17,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:08:17,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733301308] [2023-11-29 04:08:17,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733301308] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 04:08:17,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:08:17,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-11-29 04:08:17,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249071619] [2023-11-29 04:08:17,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:08:17,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:08:17,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:08:17,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:08:17,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:08:17,410 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:08:20,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 04:08:21,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 04:08:22,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:08:22,101 INFO L93 Difference]: Finished difference Result 175 states and 262 transitions. [2023-11-29 04:08:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:08:22,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 128 [2023-11-29 04:08:22,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:08:22,104 INFO L225 Difference]: With dead ends: 175 [2023-11-29 04:08:22,104 INFO L226 Difference]: Without dead ends: 120 [2023-11-29 04:08:22,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:08:22,106 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 48 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:08:22,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 215 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 04:08:22,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-29 04:08:22,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 97. [2023-11-29 04:08:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 54 states have internal predecessors, (65), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-29 04:08:22,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 145 transitions. [2023-11-29 04:08:22,131 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 145 transitions. Word has length 128 [2023-11-29 04:08:22,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:08:22,132 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 145 transitions. [2023-11-29 04:08:22,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 04:08:22,132 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 145 transitions. [2023-11-29 04:08:22,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 04:08:22,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:08:22,135 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:08:22,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 04:08:22,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:08:22,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:08:22,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:08:22,339 INFO L85 PathProgramCache]: Analyzing trace with hash 68161233, now seen corresponding path program 1 times [2023-11-29 04:08:22,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:08:22,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059446084] [2023-11-29 04:08:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:08:22,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:08:22,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:08:22,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:08:22,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3ba6219-0595-405f-8427-c636b1dbf91a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 04:08:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:08:22,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-29 04:08:22,679 INFO L285 TraceCheckSpWp]: Computing forward predicates...