./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ --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 2006370b8a49dd66a2beda35abd40d48d399599f38c6eecda60f9b7dc037aa18 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:23:30,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:23:30,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:23:30,567 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:23:30,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:23:30,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:23:30,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:23:30,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:23:30,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:23:30,596 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:23:30,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:23:30,598 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:23:30,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:23:30,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:23:30,600 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:23:30,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:23:30,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:23:30,602 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:23:30,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:23:30,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:23:30,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:23:30,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:23:30,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:23:30,605 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:23:30,606 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:23:30,606 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:23:30,607 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:23:30,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:23:30,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:23:30,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:23:30,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:23:30,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:23:30,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:23:30,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:23:30,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:23:30,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:23:30,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:23:30,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:23:30,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:23:30,611 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:23:30,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:23:30,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:23:30,613 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_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2006370b8a49dd66a2beda35abd40d48d399599f38c6eecda60f9b7dc037aa18 [2023-11-23 22:23:30,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:23:30,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:23:30,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:23:30,871 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:23:30,871 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:23:30,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i [2023-11-23 22:23:34,133 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:23:34,406 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:23:34,411 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i [2023-11-23 22:23:34,424 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/data/ff1159f3b/c3f6cf2f61d54e0abf812bbdc7ddf2ef/FLAG8328c012f [2023-11-23 22:23:34,444 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/data/ff1159f3b/c3f6cf2f61d54e0abf812bbdc7ddf2ef [2023-11-23 22:23:34,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:23:34,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:23:34,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:23:34,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:23:34,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:23:34,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3456fe21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34, skipping insertion in model container [2023-11-23 22:23:34,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,510 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:23:34,701 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_b643abd2-27a5-4dd0-8d19-26a898be1e6a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i[913,926] [2023-11-23 22:23:34,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:23:34,764 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:23:34,789 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_b643abd2-27a5-4dd0-8d19-26a898be1e6a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i[913,926] [2023-11-23 22:23:34,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:23:34,842 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:23:34,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34 WrapperNode [2023-11-23 22:23:34,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:23:34,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:23:34,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:23:34,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:23:34,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,921 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2023-11-23 22:23:34,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:23:34,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:23:34,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:23:34,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:23:34,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,944 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,967 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:23:34,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:34,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:23:35,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:23:35,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:23:35,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:23:35,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (1/1) ... [2023-11-23 22:23:35,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:23:35,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:35,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:23:35,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:23:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:23:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:23:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:23:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:23:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:23:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:23:35,167 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:23:35,170 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:23:35,550 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:23:35,630 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:23:35,631 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:23:35,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:35 BoogieIcfgContainer [2023-11-23 22:23:35,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:23:35,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:23:35,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:23:35,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:23:35,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:23:34" (1/3) ... [2023-11-23 22:23:35,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab6ff05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:23:35, skipping insertion in model container [2023-11-23 22:23:35,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:34" (2/3) ... [2023-11-23 22:23:35,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab6ff05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:23:35, skipping insertion in model container [2023-11-23 22:23:35,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:35" (3/3) ... [2023-11-23 22:23:35,642 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-88.i [2023-11-23 22:23:35,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:23:35,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:23:35,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:23:35,727 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;@37d2bd81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:23:35,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:23:35,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 22:23:35,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-23 22:23:35,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:35,748 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:35,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:35,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash -400417403, now seen corresponding path program 1 times [2023-11-23 22:23:35,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:35,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514164413] [2023-11-23 22:23:35,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:35,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:23:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:23:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:23:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 22:23:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 22:23:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 22:23:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 22:23:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 22:23:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 22:23:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 22:23:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 22:23:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 22:23:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 22:23:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 22:23:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 22:23:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 22:23:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 22:23:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:36,234 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 22:23:36,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:36,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514164413] [2023-11-23 22:23:36,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514164413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:36,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:36,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:23:36,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078319522] [2023-11-23 22:23:36,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:36,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:23:36,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:36,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:23:36,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:23:36,277 INFO L87 Difference]: Start difference. First operand has 50 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 22:23:36,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:36,343 INFO L93 Difference]: Finished difference Result 97 states and 171 transitions. [2023-11-23 22:23:36,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:23:36,347 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2023-11-23 22:23:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:36,355 INFO L225 Difference]: With dead ends: 97 [2023-11-23 22:23:36,356 INFO L226 Difference]: Without dead ends: 48 [2023-11-23 22:23:36,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:23:36,366 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:36,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:23:36,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-23 22:23:36,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-23 22:23:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 22:23:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 73 transitions. [2023-11-23 22:23:36,432 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 73 transitions. Word has length 107 [2023-11-23 22:23:36,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:36,433 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 73 transitions. [2023-11-23 22:23:36,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 22:23:36,434 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2023-11-23 22:23:36,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-23 22:23:36,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:36,439 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:36,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:23:36,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:36,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2099352515, now seen corresponding path program 1 times [2023-11-23 22:23:36,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:36,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521199363] [2023-11-23 22:23:36,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:36,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:23:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:23:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:23:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 22:23:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 22:23:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 22:23:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 22:23:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 22:23:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 22:23:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 22:23:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 22:23:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 22:23:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 22:23:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 22:23:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 22:23:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 22:23:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 22:23:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 22:23:39,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:39,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521199363] [2023-11-23 22:23:39,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521199363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:39,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:39,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:23:39,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697860786] [2023-11-23 22:23:39,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:39,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:23:39,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:39,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:23:39,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:23:39,270 INFO L87 Difference]: Start difference. First operand 48 states and 73 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 22:23:39,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:39,829 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2023-11-23 22:23:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:23:39,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2023-11-23 22:23:39,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:39,833 INFO L225 Difference]: With dead ends: 121 [2023-11-23 22:23:39,833 INFO L226 Difference]: Without dead ends: 74 [2023-11-23 22:23:39,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:23:39,836 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 83 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:39,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 139 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:23:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-23 22:23:39,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 55. [2023-11-23 22:23:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 22:23:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2023-11-23 22:23:39,878 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 107 [2023-11-23 22:23:39,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:39,879 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2023-11-23 22:23:39,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 22:23:39,880 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2023-11-23 22:23:39,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-23 22:23:39,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:39,883 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:39,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:23:39,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:39,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:39,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2138356479, now seen corresponding path program 1 times [2023-11-23 22:23:39,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:39,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836136708] [2023-11-23 22:23:39,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:39,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:23:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:23:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:23:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 22:23:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 22:23:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 22:23:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 22:23:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 22:23:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 22:23:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 22:23:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 22:23:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 22:23:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 22:23:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 22:23:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 22:23:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 22:23:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 22:23:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,447 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 22:23:40,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:40,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836136708] [2023-11-23 22:23:40,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836136708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:40,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:40,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:23:40,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332766863] [2023-11-23 22:23:40,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:40,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:23:40,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:40,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:23:40,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:23:40,451 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 22:23:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:40,667 INFO L93 Difference]: Finished difference Result 164 states and 239 transitions. [2023-11-23 22:23:40,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:23:40,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2023-11-23 22:23:40,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:40,677 INFO L225 Difference]: With dead ends: 164 [2023-11-23 22:23:40,677 INFO L226 Difference]: Without dead ends: 110 [2023-11-23 22:23:40,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:23:40,686 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 50 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:40,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 190 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:23:40,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-23 22:23:40,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 103. [2023-11-23 22:23:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.28125) internal successors, (82), 64 states have internal predecessors, (82), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 22:23:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 150 transitions. [2023-11-23 22:23:40,762 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 150 transitions. Word has length 107 [2023-11-23 22:23:40,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:40,763 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 150 transitions. [2023-11-23 22:23:40,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 22:23:40,764 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 150 transitions. [2023-11-23 22:23:40,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 22:23:40,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:40,773 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:40,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:23:40,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:40,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:40,774 INFO L85 PathProgramCache]: Analyzing trace with hash 593037170, now seen corresponding path program 1 times [2023-11-23 22:23:40,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:40,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2937268] [2023-11-23 22:23:40,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:40,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:23:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:23:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:23:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 22:23:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 22:23:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:40,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 22:23:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 22:23:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 22:23:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 22:23:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 22:23:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 22:23:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 22:23:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 22:23:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 22:23:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 22:23:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 22:23:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 22:23:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 22:23:41,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:41,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2937268] [2023-11-23 22:23:41,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2937268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:41,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:41,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:23:41,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459145775] [2023-11-23 22:23:41,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:41,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:23:41,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:41,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:23:41,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:23:41,086 INFO L87 Difference]: Start difference. First operand 103 states and 150 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 22:23:41,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:41,255 INFO L93 Difference]: Finished difference Result 175 states and 254 transitions. [2023-11-23 22:23:41,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:23:41,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-11-23 22:23:41,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:41,258 INFO L225 Difference]: With dead ends: 175 [2023-11-23 22:23:41,258 INFO L226 Difference]: Without dead ends: 110 [2023-11-23 22:23:41,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:23:41,260 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 47 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:41,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 194 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:23:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-23 22:23:41,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2023-11-23 22:23:41,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 65 states have internal predecessors, (82), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 22:23:41,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2023-11-23 22:23:41,310 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 109 [2023-11-23 22:23:41,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:41,311 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2023-11-23 22:23:41,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 22:23:41,311 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2023-11-23 22:23:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 22:23:41,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:41,313 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:41,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:23:41,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:41,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:41,314 INFO L85 PathProgramCache]: Analyzing trace with hash 851262190, now seen corresponding path program 1 times [2023-11-23 22:23:41,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:41,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550522060] [2023-11-23 22:23:41,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:41,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:23:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 22:23:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:23:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 22:23:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 22:23:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 22:23:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-23 22:23:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 22:23:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 22:23:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 22:23:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 22:23:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 22:23:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 22:23:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 22:23:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 22:23:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 22:23:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 22:23:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 22:23:41,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:23:41,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550522060] [2023-11-23 22:23:41,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550522060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:41,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:41,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:23:41,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423114739] [2023-11-23 22:23:41,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:41,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:23:41,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:23:41,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:23:41,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:23:41,822 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 22:23:42,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:42,177 INFO L93 Difference]: Finished difference Result 189 states and 264 transitions. [2023-11-23 22:23:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:23:42,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2023-11-23 22:23:42,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:42,184 INFO L225 Difference]: With dead ends: 189 [2023-11-23 22:23:42,185 INFO L226 Difference]: Without dead ends: 129 [2023-11-23 22:23:42,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:23:42,188 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 91 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:42,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 286 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:23:42,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-23 22:23:42,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 105. [2023-11-23 22:23:42,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 66 states have (on average 1.2575757575757576) internal successors, (83), 66 states have internal predecessors, (83), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 22:23:42,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 151 transitions. [2023-11-23 22:23:42,260 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 151 transitions. Word has length 109 [2023-11-23 22:23:42,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:42,262 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 151 transitions. [2023-11-23 22:23:42,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 22:23:42,264 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 151 transitions. [2023-11-23 22:23:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 22:23:42,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:42,266 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:42,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:23:42,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:42,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:42,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1316772182, now seen corresponding path program 1 times [2023-11-23 22:23:42,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:23:42,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912093210] [2023-11-23 22:23:42,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:42,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:23:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:23:42,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:23:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:23:42,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:23:42,529 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:23:42,530 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:23:42,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:23:42,538 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-23 22:23:42,543 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:23:42,627 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-23 22:23:42,630 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-23 22:23:42,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:23:42 BoogieIcfgContainer [2023-11-23 22:23:42,658 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:23:42,659 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:23:42,659 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:23:42,659 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:23:42,660 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:35" (3/4) ... [2023-11-23 22:23:42,662 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:23:42,663 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:23:42,664 INFO L158 Benchmark]: Toolchain (without parser) took 8209.64ms. Allocated memory was 153.1MB in the beginning and 232.8MB in the end (delta: 79.7MB). Free memory was 108.5MB in the beginning and 85.4MB in the end (delta: 23.1MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. [2023-11-23 22:23:42,664 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:23:42,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.59ms. Allocated memory is still 153.1MB. Free memory was 108.5MB in the beginning and 95.9MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:23:42,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.93ms. Allocated memory is still 153.1MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:23:42,668 INFO L158 Benchmark]: Boogie Preprocessor took 71.80ms. Allocated memory is still 153.1MB. Free memory was 93.4MB in the beginning and 91.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:23:42,668 INFO L158 Benchmark]: RCFGBuilder took 628.90ms. Allocated memory is still 153.1MB. Free memory was 91.0MB in the beginning and 123.4MB in the end (delta: -32.4MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2023-11-23 22:23:42,668 INFO L158 Benchmark]: TraceAbstraction took 7024.44ms. Allocated memory was 153.1MB in the beginning and 232.8MB in the end (delta: 79.7MB). Free memory was 122.9MB in the beginning and 85.4MB in the end (delta: 37.6MB). Peak memory consumption was 117.3MB. Max. memory is 16.1GB. [2023-11-23 22:23:42,669 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 232.8MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:23:42,672 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.59ms. Allocated memory is still 153.1MB. Free memory was 108.5MB in the beginning and 95.9MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.93ms. Allocated memory is still 153.1MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.80ms. Allocated memory is still 153.1MB. Free memory was 93.4MB in the beginning and 91.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.90ms. Allocated memory is still 153.1MB. Free memory was 91.0MB in the beginning and 123.4MB in the end (delta: -32.4MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7024.44ms. Allocated memory was 153.1MB in the beginning and 232.8MB in the end (delta: 79.7MB). Free memory was 122.9MB in the beginning and 85.4MB in the end (delta: 37.6MB). Peak memory consumption was 117.3MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 232.8MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of bitwiseOr at line 103. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -8; [L23] unsigned char var_1_5 = 0; [L24] unsigned char var_1_6 = 1; [L25] signed char var_1_7 = -1; [L26] signed char var_1_8 = -50; [L27] signed char var_1_9 = 100; [L28] unsigned long int var_1_10 = 25; [L29] unsigned long int var_1_11 = 2568920345; [L30] unsigned long int var_1_12 = 1191097264; [L31] unsigned long int var_1_13 = 1801344522; [L32] signed long int var_1_14 = 64; [L33] signed short int var_1_15 = -16; [L34] float var_1_16 = 1000000.5; [L35] float var_1_17 = 4.5; [L36] unsigned char var_1_18 = 0; [L37] unsigned char var_1_19 = 128; [L38] unsigned long int last_1_var_1_10 = 25; [L39] signed short int last_1_var_1_15 = -16; [L40] unsigned char last_1_var_1_18 = 0; [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] CALL updateLastVariables() [L98] last_1_var_1_10 = var_1_10 [L99] last_1_var_1_15 = var_1_15 [L100] last_1_var_1_18 = var_1_18 [L110] RET updateLastVariables() [L111] CALL updateVariables() [L70] var_1_5 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L72] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L72] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L73] var_1_6 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_7=-1, var_1_8=-50, var_1_9=100] [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_7=-1, var_1_8=-50, var_1_9=100] [L75] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-1, var_1_8=-50, var_1_9=100] [L75] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-1, var_1_8=-50, var_1_9=100] [L76] var_1_7 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=100] [L77] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=100] [L78] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=100] [L78] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=100] [L79] var_1_9 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L80] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L81] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L81] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L82] var_1_11 = __VERIFIER_nondet_ulong() [L83] CALL assume_abort_if_not(var_1_11 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L83] RET assume_abort_if_not(var_1_11 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L84] CALL assume_abort_if_not(var_1_11 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L84] RET assume_abort_if_not(var_1_11 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L85] var_1_12 = __VERIFIER_nondet_ulong() [L86] CALL assume_abort_if_not(var_1_12 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L86] RET assume_abort_if_not(var_1_12 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L87] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L87] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L88] var_1_13 = __VERIFIER_nondet_ulong() [L89] CALL assume_abort_if_not(var_1_13 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L89] RET assume_abort_if_not(var_1_13 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L90] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L90] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L91] var_1_17 = __VERIFIER_nondet_float() [L92] CALL assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L92] RET assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L93] var_1_19 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L94] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L95] CALL assume_abort_if_not(var_1_19 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=254, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=254, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L95] RET assume_abort_if_not(var_1_19 <= 254) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=254, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L111] RET updateVariables() [L112] CALL step() [L44] EXPR last_1_var_1_15 | last_1_var_1_10 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=254, var_1_1=-8, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L44] COND FALSE !(((last_1_var_1_15 | last_1_var_1_10) > last_1_var_1_18) && var_1_5) [L51] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=254, var_1_1=-49, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L53] COND FALSE !(\read(var_1_5)) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=254, var_1_1=-49, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L56] COND TRUE var_1_12 <= var_1_8 [L57] var_1_14 = ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=50, var_1_15=-16, var_1_16=2000001/2, var_1_18=0, var_1_19=254, var_1_1=-49, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L59] var_1_15 = 2 [L60] var_1_16 = var_1_17 [L61] var_1_18 = var_1_19 [L62] unsigned char stepLocal_0 = var_1_8 < var_1_1; VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, stepLocal_0=1, var_1_10=25, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=50, var_1_15=2, var_1_16=5368709124, var_1_17=5368709124, var_1_18=254, var_1_19=254, var_1_1=-49, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L63] COND TRUE stepLocal_0 && (((((var_1_9) > (var_1_8)) ? (var_1_9) : (var_1_8))) == var_1_7) [L64] var_1_10 = (var_1_11 - (((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))) - 1u)) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, stepLocal_0=1, var_1_10=3221225470, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=50, var_1_15=2, var_1_16=5368709124, var_1_17=5368709124, var_1_18=254, var_1_19=254, var_1_1=-49, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L112] RET step() [L113] CALL, EXPR property() [L103] EXPR last_1_var_1_15 | last_1_var_1_10 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=3221225470, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=50, var_1_15=2, var_1_16=5368709124, var_1_17=5368709124, var_1_18=254, var_1_19=254, var_1_1=-49, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L103-L104] return (((((((((last_1_var_1_15 | last_1_var_1_10) > last_1_var_1_18) && var_1_5) ? ((var_1_5 && var_1_6) ? (var_1_1 == ((signed char) var_1_7)) : (var_1_1 == ((signed char) var_1_7))) : (var_1_1 == ((signed char) var_1_7))) && (var_1_5 ? (var_1_8 == ((signed char) ((((var_1_7) > (var_1_9)) ? (var_1_7) : (var_1_9))))) : 1)) && (((var_1_8 < var_1_1) && (((((var_1_9) > (var_1_8)) ? (var_1_9) : (var_1_8))) == var_1_7)) ? (var_1_10 == ((unsigned long int) (var_1_11 - (((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))) - 1u)))) : (var_1_10 == ((unsigned long int) (var_1_11 - var_1_13))))) && ((var_1_12 <= var_1_8) ? (var_1_14 == ((signed long int) ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) : 1)) && (var_1_15 == ((signed short int) 2))) && (var_1_16 == ((float) var_1_17))) && (var_1_18 == ((unsigned char) var_1_19)) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=3221225470, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=50, var_1_15=2, var_1_16=5368709124, var_1_17=5368709124, var_1_18=254, var_1_19=254, var_1_1=-49, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=3221225470, var_1_11=4294967294, var_1_12=1073741825, var_1_13=1073741823, var_1_14=50, var_1_15=2, var_1_16=5368709124, var_1_17=5368709124, var_1_18=254, var_1_19=254, var_1_1=-49, var_1_5=0, var_1_6=0, var_1_7=-49, var_1_8=-50, var_1_9=-49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 6, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 271 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 271 mSDsluCounter, 879 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 542 mSDsCounter, 172 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 172 mSolverCounterUnsat, 337 mSDtfsCounter, 300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 56 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 648 NumberOfCodeBlocks, 648 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 2408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2720/2720 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 [2023-11-23 22:23:42,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ --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 2006370b8a49dd66a2beda35abd40d48d399599f38c6eecda60f9b7dc037aa18 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:23:45,444 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:23:45,531 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-23 22:23:45,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:23:45,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:23:45,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:23:45,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:23:45,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:23:45,570 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:23:45,570 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:23:45,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:23:45,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:23:45,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:23:45,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:23:45,574 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:23:45,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:23:45,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:23:45,576 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:23:45,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:23:45,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:23:45,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:23:45,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:23:45,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:23:45,580 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:23:45,580 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:23:45,581 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:23:45,581 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:23:45,582 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:23:45,582 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:23:45,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:23:45,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:23:45,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:23:45,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:23:45,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:23:45,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:23:45,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:23:45,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:23:45,587 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:23:45,588 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:23:45,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:23:45,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:23:45,590 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:23:45,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:23:45,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:23:45,591 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:23:45,592 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_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2006370b8a49dd66a2beda35abd40d48d399599f38c6eecda60f9b7dc037aa18 [2023-11-23 22:23:45,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:23:45,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:23:46,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:23:46,005 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:23:46,005 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:23:46,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i [2023-11-23 22:23:49,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:23:49,552 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:23:49,553 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i [2023-11-23 22:23:49,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/data/ea1c9e1c4/3c25069e1d784a118b4c34589ff68d4d/FLAGa68879b53 [2023-11-23 22:23:49,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/data/ea1c9e1c4/3c25069e1d784a118b4c34589ff68d4d [2023-11-23 22:23:49,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:23:49,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:23:49,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:23:49,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:23:49,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:23:49,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:23:49" (1/1) ... [2023-11-23 22:23:49,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac2e771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:49, skipping insertion in model container [2023-11-23 22:23:49,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:23:49" (1/1) ... [2023-11-23 22:23:49,647 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:23:49,884 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_b643abd2-27a5-4dd0-8d19-26a898be1e6a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i[913,926] [2023-11-23 22:23:49,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:23:50,005 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:23:50,024 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_b643abd2-27a5-4dd0-8d19-26a898be1e6a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-88.i[913,926] [2023-11-23 22:23:50,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:23:50,100 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:23:50,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50 WrapperNode [2023-11-23 22:23:50,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:23:50,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:23:50,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:23:50,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:23:50,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,186 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-23 22:23:50,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:23:50,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:23:50,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:23:50,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:23:50,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,224 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,247 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:23:50,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:23:50,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:23:50,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:23:50,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:23:50,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (1/1) ... [2023-11-23 22:23:50,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:23:50,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:23:50,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:23:50,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:23:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:23:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 22:23:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:23:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:23:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:23:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:23:50,526 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:23:50,528 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:23:50,836 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:23:50,905 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:23:50,906 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:23:50,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:50 BoogieIcfgContainer [2023-11-23 22:23:50,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:23:50,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:23:50,909 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:23:50,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:23:50,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:23:49" (1/3) ... [2023-11-23 22:23:50,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed90953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:23:50, skipping insertion in model container [2023-11-23 22:23:50,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:23:50" (2/3) ... [2023-11-23 22:23:50,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed90953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:23:50, skipping insertion in model container [2023-11-23 22:23:50,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:50" (3/3) ... [2023-11-23 22:23:50,916 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-88.i [2023-11-23 22:23:50,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:23:50,937 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:23:50,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:23:50,996 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;@6720093d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:23:50,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:23:51,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 22:23:51,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:23:51,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:51,015 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:51,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:51,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:51,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1498095704, now seen corresponding path program 1 times [2023-11-23 22:23:51,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:23:51,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791002199] [2023-11-23 22:23:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:51,037 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 [2023-11-23 22:23:51,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:23:51,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:23:51,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:23:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:51,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:23:51,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-11-23 22:23:51,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:51,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:23:51,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791002199] [2023-11-23 22:23:51,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791002199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:51,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:51,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:23:51,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756891720] [2023-11-23 22:23:51,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:51,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:23:51,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:23:51,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:23:51,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:23:51,396 INFO L87 Difference]: Start difference. First operand has 45 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 22:23:51,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:51,458 INFO L93 Difference]: Finished difference Result 87 states and 153 transitions. [2023-11-23 22:23:51,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:23:51,462 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 104 [2023-11-23 22:23:51,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:51,472 INFO L225 Difference]: With dead ends: 87 [2023-11-23 22:23:51,472 INFO L226 Difference]: Without dead ends: 43 [2023-11-23 22:23:51,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:23:51,485 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:51,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:23:51,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-23 22:23:51,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-23 22:23:51,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 22:23:51,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 64 transitions. [2023-11-23 22:23:51,549 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 64 transitions. Word has length 104 [2023-11-23 22:23:51,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:51,549 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 64 transitions. [2023-11-23 22:23:51,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 22:23:51,551 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2023-11-23 22:23:51,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:23:51,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:51,556 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:51,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:23:51,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:23:51,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:51,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:51,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1676442918, now seen corresponding path program 1 times [2023-11-23 22:23:51,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:23:51,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234025777] [2023-11-23 22:23:51,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:51,767 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 [2023-11-23 22:23:51,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:23:51,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:23:51,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 22:23:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:51,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:23:51,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:52,412 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-23 22:23:52,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:23:52,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:23:52,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234025777] [2023-11-23 22:23:52,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234025777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:23:52,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:23:52,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:23:52,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768609189] [2023-11-23 22:23:52,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:23:52,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:23:52,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:23:52,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:23:52,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:23:52,419 INFO L87 Difference]: Start difference. First operand 43 states and 64 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 22:23:52,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:52,632 INFO L93 Difference]: Finished difference Result 147 states and 215 transitions. [2023-11-23 22:23:52,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:23:52,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 104 [2023-11-23 22:23:52,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:52,638 INFO L225 Difference]: With dead ends: 147 [2023-11-23 22:23:52,638 INFO L226 Difference]: Without dead ends: 105 [2023-11-23 22:23:52,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:23:52,641 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 72 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:52,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 241 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:23:52,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-23 22:23:52,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 76. [2023-11-23 22:23:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 39 states have internal predecessors, (46), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 22:23:52,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 114 transitions. [2023-11-23 22:23:52,673 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 114 transitions. Word has length 104 [2023-11-23 22:23:52,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:52,674 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 114 transitions. [2023-11-23 22:23:52,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-23 22:23:52,675 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 114 transitions. [2023-11-23 22:23:52,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:23:52,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:52,677 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:52,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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)] Ended with exit code 0 [2023-11-23 22:23:52,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:23:52,882 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:52,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash 98564444, now seen corresponding path program 1 times [2023-11-23 22:23:52,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:23:52,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959081185] [2023-11-23 22:23:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:52,884 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 [2023-11-23 22:23:52,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:23:52,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:23:52,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 22:23:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:53,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:23:53,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:23:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 258 proven. 15 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-23 22:23:53,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:23:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-23 22:23:53,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:23:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959081185] [2023-11-23 22:23:53,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1959081185] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:23:53,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:23:53,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-23 22:23:53,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740408269] [2023-11-23 22:23:53,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 22:23:53,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 22:23:53,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:23:53,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 22:23:53,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:23:53,844 INFO L87 Difference]: Start difference. First operand 76 states and 114 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-23 22:23:54,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:23:54,793 INFO L93 Difference]: Finished difference Result 229 states and 329 transitions. [2023-11-23 22:23:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 22:23:54,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 104 [2023-11-23 22:23:54,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:23:54,798 INFO L225 Difference]: With dead ends: 229 [2023-11-23 22:23:54,798 INFO L226 Difference]: Without dead ends: 187 [2023-11-23 22:23:54,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:23:54,801 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 125 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 22:23:54,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 178 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 22:23:54,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-23 22:23:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 148. [2023-11-23 22:23:54,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 80 states have (on average 1.175) internal successors, (94), 81 states have internal predecessors, (94), 61 states have call successors, (61), 6 states have call predecessors, (61), 6 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-23 22:23:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 216 transitions. [2023-11-23 22:23:54,849 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 216 transitions. Word has length 104 [2023-11-23 22:23:54,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:23:54,850 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 216 transitions. [2023-11-23 22:23:54,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-23 22:23:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 216 transitions. [2023-11-23 22:23:54,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 22:23:54,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:23:54,853 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:23:54,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:23:55,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:23:55,057 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:23:55,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:23:55,058 INFO L85 PathProgramCache]: Analyzing trace with hash 41306142, now seen corresponding path program 1 times [2023-11-23 22:23:55,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:23:55,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596509189] [2023-11-23 22:23:55,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:23:55,059 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 [2023-11-23 22:23:55,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:23:55,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:23:55,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b643abd2-27a5-4dd0-8d19-26a898be1e6a/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 22:23:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:23:55,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 22:23:55,182 INFO L285 TraceCheckSpWp]: Computing forward predicates...