./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.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_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme --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 972389e266c93b1306ff4a1581fde5220bceeac64f39d9a39c5a65d85ee30378 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:22,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:23,069 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:45:23,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:23,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:23,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:23,113 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:23,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:23,115 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:45:23,121 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:45:23,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:45:23,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:45:23,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:23,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:23,127 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:23,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:23,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:45:23,129 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:45:23,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:23,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:45:23,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:23,132 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:45:23,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:45:23,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:45:23,133 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:45:23,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:23,135 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:23,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:23,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:23,137 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:45:23,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:45:23,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:23,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:23,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:45:23,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:45:23,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:23,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:45:23,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:45:23,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:45:23,142 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:45:23,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:45:23,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:45:23,144 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_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 972389e266c93b1306ff4a1581fde5220bceeac64f39d9a39c5a65d85ee30378 [2023-11-26 10:45:23,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:23,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:23,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:23,541 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:23,541 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:23,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i [2023-11-26 10:45:26,760 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:27,036 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:27,037 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i [2023-11-26 10:45:27,049 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/data/57ad4821d/0aa4709578784e39b8aa255a4c915615/FLAG0a2bf9ec5 [2023-11-26 10:45:27,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/data/57ad4821d/0aa4709578784e39b8aa255a4c915615 [2023-11-26 10:45:27,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:27,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:27,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:27,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:27,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:27,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3b5b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27, skipping insertion in model container [2023-11-26 10:45:27,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,147 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:27,319 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_9b7461bf-513e-4e0a-b516-3302ce608e74/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i[913,926] [2023-11-26 10:45:27,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:27,414 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:27,426 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_9b7461bf-513e-4e0a-b516-3302ce608e74/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i[913,926] [2023-11-26 10:45:27,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:27,485 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:27,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27 WrapperNode [2023-11-26 10:45:27,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:27,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:27,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:27,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:27,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,565 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2023-11-26 10:45:27,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:27,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:27,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:27,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:27,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,604 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]. [2023-11-26 10:45:27,605 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:27,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:27,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:27,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:27,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (1/1) ... [2023-11-26 10:45:27,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:27,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:27,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:27,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:27,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:45:27,729 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:45:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:45:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:45:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:27,859 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:27,863 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:45:28,455 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:45:28,579 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:45:28,580 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:45:28,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:28 BoogieIcfgContainer [2023-11-26 10:45:28,581 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:45:28,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:45:28,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:45:28,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:45:28,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:45:27" (1/3) ... [2023-11-26 10:45:28,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc30ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:28, skipping insertion in model container [2023-11-26 10:45:28,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:27" (2/3) ... [2023-11-26 10:45:28,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc30ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:28, skipping insertion in model container [2023-11-26 10:45:28,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:28" (3/3) ... [2023-11-26 10:45:28,593 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-80.i [2023-11-26 10:45:28,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:45:28,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:45:28,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:45:28,691 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;@70682a75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:45:28,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:45:28,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-26 10:45:28,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-26 10:45:28,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:28,725 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:28,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:28,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:28,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1330691903, now seen corresponding path program 1 times [2023-11-26 10:45:28,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:28,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559500774] [2023-11-26 10:45:28,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:28,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:45:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 10:45:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 10:45:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 10:45:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 10:45:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 10:45:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 10:45:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 10:45:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:45:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 10:45:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 10:45:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 10:45:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 10:45:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 10:45:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 10:45:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 10:45:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 10:45:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 10:45:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-26 10:45:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:29,831 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-26 10:45:29,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:29,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559500774] [2023-11-26 10:45:29,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559500774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:29,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:29,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:45:29,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117844811] [2023-11-26 10:45:29,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:29,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:45:29,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:29,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:45:29,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:45:29,897 INFO L87 Difference]: Start difference. First operand has 55 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-26 10:45:30,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:30,069 INFO L93 Difference]: Finished difference Result 159 states and 289 transitions. [2023-11-26 10:45:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:45:30,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 121 [2023-11-26 10:45:30,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:30,088 INFO L225 Difference]: With dead ends: 159 [2023-11-26 10:45:30,089 INFO L226 Difference]: Without dead ends: 105 [2023-11-26 10:45:30,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:30,100 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 91 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:30,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 218 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:45:30,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-26 10:45:30,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 55. [2023-11-26 10:45:30,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-26 10:45:30,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 82 transitions. [2023-11-26 10:45:30,174 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 82 transitions. Word has length 121 [2023-11-26 10:45:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:30,177 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 82 transitions. [2023-11-26 10:45:30,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-26 10:45:30,177 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2023-11-26 10:45:30,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-26 10:45:30,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:30,183 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:30,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:45:30,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:30,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:30,184 INFO L85 PathProgramCache]: Analyzing trace with hash -650633533, now seen corresponding path program 1 times [2023-11-26 10:45:30,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:30,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213419825] [2023-11-26 10:45:30,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:30,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:45:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 10:45:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 10:45:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 10:45:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 10:45:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 10:45:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 10:45:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 10:45:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:45:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 10:45:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 10:45:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 10:45:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 10:45:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 10:45:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 10:45:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 10:45:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 10:45:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 10:45:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-26 10:45:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:30,739 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-26 10:45:30,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:30,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213419825] [2023-11-26 10:45:30,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213419825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:30,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:30,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:45:30,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564858720] [2023-11-26 10:45:30,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:30,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:30,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:30,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:30,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:30,751 INFO L87 Difference]: Start difference. First operand 55 states and 82 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-26 10:45:30,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:30,853 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2023-11-26 10:45:30,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:30,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 121 [2023-11-26 10:45:30,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:30,866 INFO L225 Difference]: With dead ends: 163 [2023-11-26 10:45:30,866 INFO L226 Difference]: Without dead ends: 109 [2023-11-26 10:45:30,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:30,872 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 38 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:30,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 152 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:45:30,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-26 10:45:30,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2023-11-26 10:45:30,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 66 states have internal predecessors, (82), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-26 10:45:30,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 158 transitions. [2023-11-26 10:45:30,915 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 158 transitions. Word has length 121 [2023-11-26 10:45:30,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:30,918 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 158 transitions. [2023-11-26 10:45:30,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-26 10:45:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 158 transitions. [2023-11-26 10:45:30,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-26 10:45:30,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:30,928 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:30,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:45:30,928 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:30,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:30,929 INFO L85 PathProgramCache]: Analyzing trace with hash -629627325, now seen corresponding path program 1 times [2023-11-26 10:45:30,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:30,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98085437] [2023-11-26 10:45:30,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:30,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:45:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 10:45:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 10:45:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 10:45:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 10:45:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 10:45:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 10:45:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 10:45:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:45:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 10:45:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 10:45:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 10:45:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 10:45:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 10:45:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 10:45:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 10:45:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 10:45:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 10:45:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-26 10:45:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:31,176 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-26 10:45:31,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:31,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98085437] [2023-11-26 10:45:31,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98085437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:31,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:31,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:45:31,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972868359] [2023-11-26 10:45:31,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:31,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:31,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:31,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:31,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:31,185 INFO L87 Difference]: Start difference. First operand 107 states and 158 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-26 10:45:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:31,236 INFO L93 Difference]: Finished difference Result 159 states and 232 transitions. [2023-11-26 10:45:31,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:31,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 121 [2023-11-26 10:45:31,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:31,244 INFO L225 Difference]: With dead ends: 159 [2023-11-26 10:45:31,244 INFO L226 Difference]: Without dead ends: 53 [2023-11-26 10:45:31,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:31,250 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 13 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:31,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 127 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:45:31,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-26 10:45:31,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-26 10:45:31,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-26 10:45:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2023-11-26 10:45:31,263 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 121 [2023-11-26 10:45:31,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:31,264 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2023-11-26 10:45:31,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-26 10:45:31,264 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2023-11-26 10:45:31,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-26 10:45:31,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:31,273 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:31,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:45:31,299 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:31,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2127542790, now seen corresponding path program 1 times [2023-11-26 10:45:31,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:31,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712090604] [2023-11-26 10:45:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:31,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:31,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:45:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:45:31,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:45:31,651 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:45:31,652 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:45:31,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:45:31,657 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 10:45:31,661 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:45:31,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:45:31 BoogieIcfgContainer [2023-11-26 10:45:31,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:45:31,751 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:45:31,751 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:45:31,751 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:45:31,752 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:28" (3/4) ... [2023-11-26 10:45:31,754 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:45:31,755 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:45:31,756 INFO L158 Benchmark]: Toolchain (without parser) took 4677.88ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 102.3MB in the beginning and 140.0MB in the end (delta: -37.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2023-11-26 10:45:31,757 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 146.8MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:45:31,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.01ms. Allocated memory is still 146.8MB. Free memory was 101.9MB in the beginning and 88.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:45:31,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.35ms. Allocated memory is still 146.8MB. Free memory was 88.1MB in the beginning and 84.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:45:31,758 INFO L158 Benchmark]: Boogie Preprocessor took 67.11ms. Allocated memory is still 146.8MB. Free memory was 84.3MB in the beginning and 77.5MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:45:31,758 INFO L158 Benchmark]: RCFGBuilder took 946.97ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 77.5MB in the beginning and 172.0MB in the end (delta: -94.5MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2023-11-26 10:45:31,759 INFO L158 Benchmark]: TraceAbstraction took 3166.20ms. Allocated memory is still 211.8MB. Free memory was 171.2MB in the beginning and 141.0MB in the end (delta: 30.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2023-11-26 10:45:31,759 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 211.8MB. Free memory was 141.0MB in the beginning and 140.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:45:31,761 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 146.8MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.01ms. Allocated memory is still 146.8MB. Free memory was 101.9MB in the beginning and 88.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.35ms. Allocated memory is still 146.8MB. Free memory was 88.1MB in the beginning and 84.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.11ms. Allocated memory is still 146.8MB. Free memory was 84.3MB in the beginning and 77.5MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 946.97ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 77.5MB in the beginning and 172.0MB in the end (delta: -94.5MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3166.20ms. Allocated memory is still 211.8MB. Free memory was 171.2MB in the beginning and 141.0MB in the end (delta: 30.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 211.8MB. Free memory was 141.0MB in the beginning and 140.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 122, overapproximation of someBinaryFLOATComparisonOperation at line 122. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 128; [L23] double var_1_2 = 24.25; [L24] double var_1_3 = 128.5; [L25] double var_1_4 = 4.5; [L26] double var_1_5 = 49.5; [L27] signed short int var_1_9 = -25; [L28] unsigned char var_1_10 = 200; [L29] unsigned char var_1_11 = 1; [L30] unsigned char var_1_12 = 1; [L31] double var_1_13 = 128.375; [L32] unsigned short int var_1_14 = 0; [L33] float var_1_15 = 0.0; [L34] float var_1_16 = 4.87; [L35] float var_1_17 = 8.875; [L36] signed short int var_1_18 = -128; [L37] unsigned char var_1_19 = 0; [L38] unsigned char var_1_20 = 1; [L39] unsigned char var_1_21 = 0; [L40] unsigned long int var_1_22 = 16; [L41] unsigned long int var_1_23 = 4200661734; [L42] unsigned char last_1_var_1_10 = 200; [L126] isInitial = 1 [L127] FCALL initially() [L128] COND TRUE 1 [L129] CALL updateLastVariables() [L119] last_1_var_1_10 = var_1_10 [L129] RET updateLastVariables() [L130] CALL updateVariables() [L85] var_1_2 = __VERIFIER_nondet_double() [L86] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L86] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_3=257/2, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L87] var_1_3 = __VERIFIER_nondet_double() [L88] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L88] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_4=9/2, var_1_5=99/2, var_1_9=-25] [L89] var_1_4 = __VERIFIER_nondet_double() [L90] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_5=99/2, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_5=99/2, var_1_9=-25] [L90] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_5=99/2, var_1_9=-25] [L91] var_1_5 = __VERIFIER_nondet_double() [L92] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L92] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L93] var_1_11 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L94] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L95] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L95] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L96] var_1_12 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L97] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L98] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L98] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_13=1027/8, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L99] var_1_13 = __VERIFIER_nondet_double() [L100] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L100] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L101] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L101] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_15=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L102] var_1_15 = __VERIFIER_nondet_float() [L103] CALL assume_abort_if_not((var_1_15 >= 4611686.018427387900e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L103] RET assume_abort_if_not((var_1_15 >= 4611686.018427387900e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_16=487/100, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L104] var_1_16 = __VERIFIER_nondet_float() [L105] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427387900e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L105] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427387900e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_17=71/8, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L106] var_1_17 = __VERIFIER_nondet_float() [L107] CALL assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854776000e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L107] RET assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854776000e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L108] var_1_20 = __VERIFIER_nondet_uchar() [L109] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L109] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L110] CALL assume_abort_if_not(var_1_20 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L110] RET assume_abort_if_not(var_1_20 <= 1) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L111] var_1_21 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L112] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L113] CALL assume_abort_if_not(var_1_21 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L113] RET assume_abort_if_not(var_1_21 <= 0) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4200661734, var_1_9=-25] [L114] var_1_23 = __VERIFIER_nondet_ulong() [L115] CALL assume_abort_if_not(var_1_23 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-25] [L115] RET assume_abort_if_not(var_1_23 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-25] [L116] CALL assume_abort_if_not(var_1_23 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-25] [L116] RET assume_abort_if_not(var_1_23 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-25] [L130] RET updateVariables() [L131] CALL step() [L46] signed long int stepLocal_0 = last_1_var_1_10; VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-25] [L47] COND TRUE stepLocal_0 >= last_1_var_1_10 [L48] var_1_9 = (-256 + last_1_var_1_10) VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-56] [L52] signed short int stepLocal_1 = var_1_9; VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, stepLocal_1=-56, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-56] [L53] COND FALSE !(stepLocal_1 > 0) VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, stepLocal_1=-56, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-56] [L56] COND FALSE !(\read(var_1_19)) VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, stepLocal_1=-56, var_1_10=200, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-56] [L59] COND TRUE ! (var_1_5 > (255.9 / var_1_13)) [L60] var_1_10 = var_1_12 VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, stepLocal_1=-56, var_1_10=54, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=128, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-56] [L63] COND TRUE ((var_1_2 - var_1_3) * var_1_4) < var_1_5 [L64] var_1_1 = ((((-8) < ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10)))))) ? (-8) : ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10))))))) VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, stepLocal_1=-56, var_1_10=54, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=-8, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-56] [L68] COND FALSE !((var_1_17 <= (- var_1_16)) && var_1_19) VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, stepLocal_1=-56, var_1_10=54, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=-8, var_1_20=1, var_1_21=0, var_1_22=16, var_1_23=4294967294, var_1_9=-56] [L71] COND FALSE !(\read(var_1_19)) [L74] var_1_22 = (((((var_1_23 - var_1_9)) < (var_1_10)) ? ((var_1_23 - var_1_9)) : (var_1_10))) VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, stepLocal_1=-56, var_1_10=54, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=-8, var_1_20=1, var_1_21=0, var_1_22=54, var_1_23=4294967294, var_1_9=-56] [L76] COND TRUE ! var_1_19 VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, stepLocal_1=-56, var_1_10=54, var_1_11=1, var_1_12=54, var_1_14=0, var_1_18=-128, var_1_19=0, var_1_1=-8, var_1_20=1, var_1_21=0, var_1_22=54, var_1_23=4294967294, var_1_9=-56] [L77] COND TRUE ((var_1_15 - var_1_16) - var_1_17) <= var_1_13 [L78] var_1_14 = var_1_18 VAL [isInitial=1, last_1_var_1_10=200, stepLocal_0=200, stepLocal_1=-56, var_1_10=54, var_1_11=1, var_1_12=54, var_1_14=65408, var_1_18=-128, var_1_19=0, var_1_1=-8, var_1_20=1, var_1_21=0, var_1_22=54, var_1_23=4294967294, var_1_9=-56] [L131] RET step() [L132] CALL, EXPR property() [L122-L123] return (((((((((var_1_2 - var_1_3) * var_1_4) < var_1_5) ? (var_1_1 == ((signed short int) ((((-8) < ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10)))))) ? (-8) : ((var_1_10 + ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10))))))))) : (var_1_1 == ((signed short int) var_1_10))) && ((last_1_var_1_10 >= last_1_var_1_10) ? (var_1_9 == ((signed short int) (-256 + last_1_var_1_10))) : (var_1_9 == ((signed short int) (last_1_var_1_10 + last_1_var_1_10))))) && (var_1_19 ? (var_1_10 == ((unsigned char) ((((0) < (var_1_12)) ? (0) : (var_1_12))))) : ((! (var_1_5 > (255.9 / var_1_13))) ? (var_1_10 == ((unsigned char) var_1_12)) : 1))) && ((! var_1_19) ? ((((var_1_15 - var_1_16) - var_1_17) <= var_1_13) ? (var_1_14 == ((unsigned short int) var_1_18)) : (var_1_14 == ((unsigned short int) var_1_18))) : 1)) && (((var_1_17 <= (- var_1_16)) && var_1_19) ? (var_1_18 == ((signed short int) var_1_10)) : 1)) && ((var_1_9 > 0) ? (var_1_19 == ((unsigned char) ((var_1_5 >= (- var_1_15)) && (var_1_11 && (var_1_20 && var_1_21))))) : 1)) && (var_1_19 ? (var_1_22 == ((unsigned long int) (var_1_9 + var_1_10))) : (var_1_22 == ((unsigned long int) (((((var_1_23 - var_1_9)) < (var_1_10)) ? ((var_1_23 - var_1_9)) : (var_1_10)))))) ; [L132] RET, EXPR property() [L132] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=200, var_1_10=54, var_1_11=1, var_1_12=54, var_1_14=65408, var_1_18=-128, var_1_19=0, var_1_1=-8, var_1_20=1, var_1_21=0, var_1_22=54, var_1_23=4294967294, var_1_9=-56] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=200, var_1_10=54, var_1_11=1, var_1_12=54, var_1_14=65408, var_1_18=-128, var_1_19=0, var_1_1=-8, var_1_20=1, var_1_21=0, var_1_22=54, var_1_23=4294967294, var_1_9=-56] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142 mSDsluCounter, 497 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 270 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 227 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 52 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 486 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 360 ConstructedInterpolants, 0 QuantifiedInterpolants, 450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2052/2052 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 [2023-11-26 10:45:31,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/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_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme --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 972389e266c93b1306ff4a1581fde5220bceeac64f39d9a39c5a65d85ee30378 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:34,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:34,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:45:34,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:34,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:34,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:34,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:34,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:34,954 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:45:34,958 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:45:34,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:45:34,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:45:34,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:34,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:34,961 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:34,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:34,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:45:34,962 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:45:34,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:45:34,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:34,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:45:34,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:45:34,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:45:34,965 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:45:34,965 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:45:34,966 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:45:34,966 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:45:34,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:34,967 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:34,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:34,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:34,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:45:34,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:45:34,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:34,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:34,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:45:34,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:45:34,972 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:45:34,972 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:45:34,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:45:34,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:45:34,973 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:45:34,974 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:45:34,974 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:45:34,974 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:45:34,975 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_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 972389e266c93b1306ff4a1581fde5220bceeac64f39d9a39c5a65d85ee30378 [2023-11-26 10:45:35,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:35,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:35,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:35,352 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:35,352 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:35,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i [2023-11-26 10:45:38,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:38,886 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:38,886 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i [2023-11-26 10:45:38,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/data/d46a3b184/efc81c63aa2b4caa997699a1ec6d1921/FLAGc6fe3b881 [2023-11-26 10:45:38,918 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/data/d46a3b184/efc81c63aa2b4caa997699a1ec6d1921 [2023-11-26 10:45:38,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:38,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:38,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:38,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:38,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:38,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:38" (1/1) ... [2023-11-26 10:45:38,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7493f526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:38, skipping insertion in model container [2023-11-26 10:45:38,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:38" (1/1) ... [2023-11-26 10:45:38,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:39,210 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_9b7461bf-513e-4e0a-b516-3302ce608e74/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i[913,926] [2023-11-26 10:45:39,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:39,379 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:39,399 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_9b7461bf-513e-4e0a-b516-3302ce608e74/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-80.i[913,926] [2023-11-26 10:45:39,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:39,465 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:39,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39 WrapperNode [2023-11-26 10:45:39,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:39,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:39,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:39,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:39,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,572 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2023-11-26 10:45:39,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:39,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:39,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:39,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:39,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,644 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]. [2023-11-26 10:45:39,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:39,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:39,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:39,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:39,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (1/1) ... [2023-11-26 10:45:39,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:39,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:39,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:39,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:45:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:45:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:45:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:45:39,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:39,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:39,975 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:39,977 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:46:04,567 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:46:04,683 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:46:04,687 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:46:04,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:04 BoogieIcfgContainer [2023-11-26 10:46:04,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:46:04,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:46:04,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:46:04,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:46:04,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:45:38" (1/3) ... [2023-11-26 10:46:04,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721b6e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:04, skipping insertion in model container [2023-11-26 10:46:04,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:39" (2/3) ... [2023-11-26 10:46:04,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721b6e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:04, skipping insertion in model container [2023-11-26 10:46:04,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:04" (3/3) ... [2023-11-26 10:46:04,707 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-80.i [2023-11-26 10:46:04,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:46:04,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:46:04,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:46:04,828 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;@49e9b6c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:46:04,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:46:04,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-26 10:46:04,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-26 10:46:04,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:04,870 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:04,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:46:04,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:04,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1330691903, now seen corresponding path program 1 times [2023-11-26 10:46:04,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:04,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89896929] [2023-11-26 10:46:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:04,914 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 [2023-11-26 10:46:04,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:04,926 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:46:04,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:46:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:06,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:46:06,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:07,283 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-26 10:46:07,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:07,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:07,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89896929] [2023-11-26 10:46:07,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89896929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:07,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:07,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:46:07,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456834690] [2023-11-26 10:46:07,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:07,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:46:07,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:07,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:46:07,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:46:07,344 INFO L87 Difference]: Start difference. First operand has 55 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 34 states have internal predecessors, (47), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-26 10:46:13,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:46:17,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:46:21,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:46:25,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:46:29,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-26 10:46:29,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:29,734 INFO L93 Difference]: Finished difference Result 159 states and 289 transitions. [2023-11-26 10:46:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:46:29,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 121 [2023-11-26 10:46:29,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:29,748 INFO L225 Difference]: With dead ends: 159 [2023-11-26 10:46:29,748 INFO L226 Difference]: Without dead ends: 105 [2023-11-26 10:46:29,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:29,756 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 91 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:29,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 218 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 5 Unknown, 0 Unchecked, 22.2s Time] [2023-11-26 10:46:29,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-26 10:46:29,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 55. [2023-11-26 10:46:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-26 10:46:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 82 transitions. [2023-11-26 10:46:29,809 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 82 transitions. Word has length 121 [2023-11-26 10:46:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:29,812 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 82 transitions. [2023-11-26 10:46:29,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-26 10:46:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2023-11-26 10:46:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-26 10:46:29,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:29,833 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:29,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0 [2023-11-26 10:46:30,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:46:30,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:46:30,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:30,048 INFO L85 PathProgramCache]: Analyzing trace with hash -650633533, now seen corresponding path program 1 times [2023-11-26 10:46:30,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:30,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2397742] [2023-11-26 10:46:30,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:30,049 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 [2023-11-26 10:46:30,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:30,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:46:30,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b7461bf-513e-4e0a-b516-3302ce608e74/bin/uautomizer-verify-VRDe98Ueme/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