./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 080d285edf597249c768cc16c2f24abae81517f0a04e9c9bd0eea0a78a6e636a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:22:31,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:22:31,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:22:31,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:22:31,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:22:31,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:22:31,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:22:31,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:22:31,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:22:31,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:22:31,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:22:31,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:22:31,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:22:31,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:22:31,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:22:32,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:22:32,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:22:32,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:22:32,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:22:32,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:22:32,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:22:32,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:22:32,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:22:32,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:22:32,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:22:32,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:22:32,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:22:32,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:22:32,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:22:32,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:22:32,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:22:32,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:22:32,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:22:32,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:22:32,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:22:32,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:22:32,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:22:32,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:22:32,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:22:32,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:22:32,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:22:32,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 17:22:32,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:22:32,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:22:32,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:22:32,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:22:32,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:22:32,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:22:32,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:22:32,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:22:32,080 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:22:32,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:22:32,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:22:32,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:22:32,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:22:32,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:22:32,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:22:32,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:22:32,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:22:32,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:22:32,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:22:32,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:22:32,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:22:32,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:32,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:22:32,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:22:32,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:22:32,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:22:32,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:22:32,085 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:22:32,085 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:22:32,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:22:32,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 080d285edf597249c768cc16c2f24abae81517f0a04e9c9bd0eea0a78a6e636a [2022-11-21 17:22:32,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:22:32,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:22:32,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:22:32,419 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:22:32,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:22:32,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c [2022-11-21 17:22:35,410 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:22:35,661 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:22:35,662 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c [2022-11-21 17:22:35,669 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/data/15a343bb9/affcdd4454b941ec945ae47d8d2070f6/FLAGd3be54009 [2022-11-21 17:22:35,684 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/data/15a343bb9/affcdd4454b941ec945ae47d8d2070f6 [2022-11-21 17:22:35,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:22:35,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:22:35,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:35,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:22:35,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:22:35,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:35" (1/1) ... [2022-11-21 17:22:35,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f35ad78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:35, skipping insertion in model container [2022-11-21 17:22:35,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:35" (1/1) ... [2022-11-21 17:22:35,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:22:35,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:22:35,920 WARN L237 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_19f67cb5-cc19-4991-9c62-d9ea1f29519b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c[1107,1120] [2022-11-21 17:22:35,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:35,990 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:22:36,004 WARN L237 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_19f67cb5-cc19-4991-9c62-d9ea1f29519b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c[1107,1120] [2022-11-21 17:22:36,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:36,047 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:22:36,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36 WrapperNode [2022-11-21 17:22:36,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:36,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:36,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:22:36,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:22:36,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,083 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2022-11-21 17:22:36,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:36,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:22:36,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:22:36,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:22:36,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,106 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:22:36,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:22:36,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:22:36,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:22:36,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (1/1) ... [2022-11-21 17:22:36,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:36,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:36,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:22:36,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:22:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:22:36,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:22:36,316 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:22:36,319 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:22:36,606 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:22:36,612 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:22:36,612 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:22:36,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:36 BoogieIcfgContainer [2022-11-21 17:22:36,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:22:36,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:22:36,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:22:36,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:22:36,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:22:35" (1/3) ... [2022-11-21 17:22:36,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca13a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:36, skipping insertion in model container [2022-11-21 17:22:36,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:36" (2/3) ... [2022-11-21 17:22:36,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca13a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:36, skipping insertion in model container [2022-11-21 17:22:36,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:36" (3/3) ... [2022-11-21 17:22:36,639 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.swap_three.c [2022-11-21 17:22:36,668 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:22:36,668 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:22:36,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:22:36,743 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=LoopsAndPotentialCycles, 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;@329712c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:22:36,744 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:22:36,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:36,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 17:22:36,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:36,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 17:22:36,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:36,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:36,763 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 17:22:36,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:36,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925876613] [2022-11-21 17:22:36,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:36,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:22:37,053 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:22:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:22:37,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:22:37,160 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:22:37,161 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:22:37,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:22:37,172 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 17:22:37,177 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:22:37,217 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 17:22:37,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:22:37 BoogieIcfgContainer [2022-11-21 17:22:37,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:22:37,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:22:37,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:22:37,225 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:22:37,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:36" (3/4) ... [2022-11-21 17:22:37,229 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:22:37,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:22:37,230 INFO L158 Benchmark]: Toolchain (without parser) took 1542.08ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 122.7MB in the beginning and 178.4MB in the end (delta: -55.7MB). Peak memory consumption was 523.5kB. Max. memory is 16.1GB. [2022-11-21 17:22:37,231 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 155.2MB. Free memory was 99.5MB in the beginning and 99.3MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:22:37,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.95ms. Allocated memory is still 155.2MB. Free memory was 122.1MB in the beginning and 110.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 17:22:37,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.00ms. Allocated memory is still 155.2MB. Free memory was 110.2MB in the beginning and 108.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:22:37,233 INFO L158 Benchmark]: Boogie Preprocessor took 31.93ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 107.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:22:37,233 INFO L158 Benchmark]: RCFGBuilder took 496.85ms. Allocated memory is still 155.2MB. Free memory was 106.8MB in the beginning and 91.9MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 17:22:37,234 INFO L158 Benchmark]: TraceAbstraction took 608.06ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 91.4MB in the beginning and 178.7MB in the end (delta: -87.4MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-11-21 17:22:37,234 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 209.7MB. Free memory was 178.7MB in the beginning and 178.4MB in the end (delta: 308.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:22:37,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 155.2MB. Free memory was 99.5MB in the beginning and 99.3MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.95ms. Allocated memory is still 155.2MB. Free memory was 122.1MB in the beginning and 110.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.00ms. Allocated memory is still 155.2MB. Free memory was 110.2MB in the beginning and 108.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.93ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 107.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.85ms. Allocated memory is still 155.2MB. Free memory was 106.8MB in the beginning and 91.9MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 608.06ms. Allocated memory was 155.2MB in the beginning and 209.7MB in the end (delta: 54.5MB). Free memory was 91.4MB in the beginning and 178.7MB in the end (delta: -87.4MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 209.7MB. Free memory was 178.7MB in the beginning and 178.4MB in the end (delta: 308.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 86, overapproximation of bitwiseOr at line 75, overapproximation of bitwiseAnd at line 62. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 20); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (20 - 1); [L31] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L32] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L34] const SORT_4 var_5 = 1; [L35] const SORT_8 var_10 = 1; [L36] const SORT_8 var_13 = 5; [L37] const SORT_8 var_17 = 7; [L38] const SORT_1 var_22 = 1; [L39] const SORT_4 var_26 = 5; [L40] const SORT_4 var_29 = 7; [L42] SORT_1 input_2; [L43] SORT_1 input_3; [L45] SORT_4 state_6 = __VERIFIER_nondet_uint() & mask_SORT_4; [L46] SORT_4 state_27 = __VERIFIER_nondet_uint() & mask_SORT_4; [L47] SORT_4 state_30 = __VERIFIER_nondet_uint() & mask_SORT_4; [L49] SORT_4 init_7_arg_1 = var_5; [L50] state_6 = init_7_arg_1 [L51] SORT_4 init_28_arg_1 = var_26; [L52] state_27 = init_28_arg_1 [L53] SORT_4 init_31_arg_1 = var_29; [L54] state_30 = init_31_arg_1 VAL [init_28_arg_1=5, init_31_arg_1=7, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_4=4294967295, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_4=524288, msb_SORT_8=2147483648, state_27=5, state_30=7, state_6=1, var_10=1, var_13=5, var_17=7, var_22=1, var_26=5, var_29=7, var_5=1] [L57] input_2 = __VERIFIER_nondet_uchar() [L58] input_3 = __VERIFIER_nondet_uchar() [L61] SORT_4 var_9_arg_0 = state_6; [L62] var_9_arg_0 = var_9_arg_0 & mask_SORT_4 [L63] SORT_8 var_9 = var_9_arg_0; [L64] SORT_8 var_11_arg_0 = var_9; [L65] SORT_8 var_11_arg_1 = var_10; [L66] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L67] SORT_4 var_12_arg_0 = state_6; [L68] var_12_arg_0 = var_12_arg_0 & mask_SORT_4 [L69] SORT_8 var_12 = var_12_arg_0; [L70] SORT_8 var_14_arg_0 = var_12; [L71] SORT_8 var_14_arg_1 = var_13; [L72] SORT_1 var_14 = var_14_arg_0 == var_14_arg_1; [L73] SORT_1 var_15_arg_0 = var_11; [L74] SORT_1 var_15_arg_1 = var_14; [L75] SORT_1 var_15 = var_15_arg_0 | var_15_arg_1; [L76] SORT_4 var_16_arg_0 = state_6; [L77] var_16_arg_0 = var_16_arg_0 & mask_SORT_4 [L78] SORT_8 var_16 = var_16_arg_0; [L79] SORT_8 var_18_arg_0 = var_16; [L80] SORT_8 var_18_arg_1 = var_17; [L81] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L82] SORT_1 var_19_arg_0 = var_15; [L83] SORT_1 var_19_arg_1 = var_18; [L84] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L85] SORT_1 var_23_arg_0 = var_19; [L86] SORT_1 var_23 = ~var_23_arg_0; [L87] SORT_1 var_24_arg_0 = var_22; [L88] SORT_1 var_24_arg_1 = var_23; [L89] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L90] var_24 = var_24 & mask_SORT_1 [L91] SORT_1 bad_25_arg_0 = var_24; [L92] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2022-11-21 17:22:37,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 080d285edf597249c768cc16c2f24abae81517f0a04e9c9bd0eea0a78a6e636a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:22:39,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:22:39,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:22:39,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:22:39,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:22:39,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:22:39,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:22:39,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:22:39,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:22:39,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:22:39,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:22:39,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:22:39,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:22:39,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:22:39,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:22:39,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:22:39,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:22:39,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:22:39,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:22:39,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:22:39,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:22:39,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:22:39,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:22:39,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:22:39,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:22:39,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:22:39,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:22:39,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:22:39,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:22:39,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:22:39,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:22:39,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:22:39,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:22:39,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:22:39,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:22:39,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:22:39,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:22:39,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:22:39,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:22:39,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:22:39,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:22:39,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 17:22:39,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:22:39,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:22:39,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:22:39,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:22:39,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:22:39,813 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:22:39,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:22:39,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:22:39,814 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:22:39,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:22:39,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:22:39,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:22:39,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:22:39,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:22:39,816 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:22:39,817 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:22:39,817 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:22:39,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:22:39,817 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:22:39,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:22:39,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:22:39,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:22:39,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:22:39,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:39,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:22:39,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:22:39,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:22:39,819 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:22:39,820 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:22:39,820 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:22:39,820 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:22:39,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:22:39,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:22:39,821 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 080d285edf597249c768cc16c2f24abae81517f0a04e9c9bd0eea0a78a6e636a [2022-11-21 17:22:40,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:22:40,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:22:40,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:22:40,210 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:22:40,210 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:22:40,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c [2022-11-21 17:22:43,314 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:22:43,602 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:22:43,602 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c [2022-11-21 17:22:43,620 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/data/5c8b34d3c/2c00bc30314c441182725507f61ab33c/FLAG5017357d1 [2022-11-21 17:22:43,646 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/data/5c8b34d3c/2c00bc30314c441182725507f61ab33c [2022-11-21 17:22:43,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:22:43,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:22:43,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:43,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:22:43,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:22:43,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:43" (1/1) ... [2022-11-21 17:22:43,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596303a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:43, skipping insertion in model container [2022-11-21 17:22:43,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:43" (1/1) ... [2022-11-21 17:22:43,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:22:43,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:22:43,899 WARN L237 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_19f67cb5-cc19-4991-9c62-d9ea1f29519b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c[1107,1120] [2022-11-21 17:22:43,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:43,975 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:22:43,987 WARN L237 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_19f67cb5-cc19-4991-9c62-d9ea1f29519b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.swap_three.c[1107,1120] [2022-11-21 17:22:44,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:44,048 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:22:44,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44 WrapperNode [2022-11-21 17:22:44,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:44,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:44,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:22:44,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:22:44,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,102 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2022-11-21 17:22:44,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:44,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:22:44,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:22:44,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:22:44,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,148 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:22:44,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:22:44,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:22:44,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:22:44,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (1/1) ... [2022-11-21 17:22:44,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:44,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:44,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:22:44,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:22:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:22:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:22:44,391 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:22:44,393 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:22:44,549 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:22:44,555 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:22:44,556 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:22:44,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:44 BoogieIcfgContainer [2022-11-21 17:22:44,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:22:44,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:22:44,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:22:44,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:22:44,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:22:43" (1/3) ... [2022-11-21 17:22:44,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3119a130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:44, skipping insertion in model container [2022-11-21 17:22:44,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:44" (2/3) ... [2022-11-21 17:22:44,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3119a130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:44, skipping insertion in model container [2022-11-21 17:22:44,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:44" (3/3) ... [2022-11-21 17:22:44,572 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.swap_three.c [2022-11-21 17:22:44,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:22:44,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:22:44,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:22:44,704 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=LoopsAndPotentialCycles, 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;@3102980d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:22:44,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:22:44,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:44,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 17:22:44,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:44,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 17:22:44,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:44,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:44,728 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 17:22:44,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:44,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796516469] [2022-11-21 17:22:44,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:44,744 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 [2022-11-21 17:22:44,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:44,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:22:44,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:44,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-21 17:22:44,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:45,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:45,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:45,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796516469] [2022-11-21 17:22:45,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796516469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:45,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:45,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:22:45,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951435848] [2022-11-21 17:22:45,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:45,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:22:45,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:45,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:22:45,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:22:45,176 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:45,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:45,234 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 17:22:45,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:22:45,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-21 17:22:45,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:45,245 INFO L225 Difference]: With dead ends: 20 [2022-11-21 17:22:45,246 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 17:22:45,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:22:45,252 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:45,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:22:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 17:22:45,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 17:22:45,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:45,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 17:22:45,286 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 17:22:45,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:45,287 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 17:22:45,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:45,287 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 17:22:45,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 17:22:45,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:45,288 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:45,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:22:45,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:45,509 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:45,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:45,510 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 17:22:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:45,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733947939] [2022-11-21 17:22:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:45,511 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 [2022-11-21 17:22:45,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:45,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:22:45,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:45,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-21 17:22:45,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:45,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:45,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:22:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:46,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:46,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733947939] [2022-11-21 17:22:46,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733947939] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:22:46,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:22:46,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 17:22:46,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769728593] [2022-11-21 17:22:46,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:22:46,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:22:46,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:46,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:22:46,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:22:46,290 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:46,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:46,434 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-21 17:22:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 17:22:46,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-21 17:22:46,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:46,436 INFO L225 Difference]: With dead ends: 16 [2022-11-21 17:22:46,436 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 17:22:46,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:22:46,438 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:46,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 22 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:22:46,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 17:22:46,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-21 17:22:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:46,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-21 17:22:46,443 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-21 17:22:46,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:46,444 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-21 17:22:46,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:46,444 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-21 17:22:46,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 17:22:46,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:46,445 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-21 17:22:46,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:22:46,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:46,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:46,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:46,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-21 17:22:46,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:46,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118975540] [2022-11-21 17:22:46,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:22:46,670 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 [2022-11-21 17:22:46,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:46,674 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:22:46,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:46,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:22:46,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:22:46,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-21 17:22:46,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:47,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:22:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:47,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:47,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118975540] [2022-11-21 17:22:47,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118975540] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:22:47,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:22:47,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-21 17:22:47,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442594927] [2022-11-21 17:22:47,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:22:47,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 17:22:47,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:47,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 17:22:47,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:22:47,423 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:47,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:47,635 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-21 17:22:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:22:47,636 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-21 17:22:47,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:47,636 INFO L225 Difference]: With dead ends: 22 [2022-11-21 17:22:47,636 INFO L226 Difference]: Without dead ends: 20 [2022-11-21 17:22:47,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-21 17:22:47,638 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:47,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 31 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:22:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-21 17:22:47,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-21 17:22:47,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:47,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-21 17:22:47,645 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2022-11-21 17:22:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:47,646 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-21 17:22:47,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:47,646 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-21 17:22:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 17:22:47,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:47,647 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-21 17:22:47,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:47,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:47,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:47,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:47,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-21 17:22:47,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:47,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292350043] [2022-11-21 17:22:47,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 17:22:47,861 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 [2022-11-21 17:22:47,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:47,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:22:47,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:48,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-21 17:22:48,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:22:48,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-21 17:22:48,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:22:48,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:22:48,701 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:22:48,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:48,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292350043] [2022-11-21 17:22:48,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292350043] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:22:48,702 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:22:48,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-21 17:22:48,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102408860] [2022-11-21 17:22:48,702 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:22:48,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 17:22:48,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:48,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 17:22:48,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:22:48,704 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:48,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:48,926 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-11-21 17:22:48,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:22:48,927 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-21 17:22:48,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:48,928 INFO L225 Difference]: With dead ends: 20 [2022-11-21 17:22:48,928 INFO L226 Difference]: Without dead ends: 18 [2022-11-21 17:22:48,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-21 17:22:48,929 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:48,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 31 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:22:48,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-21 17:22:48,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-21 17:22:48,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-21 17:22:48,936 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-21 17:22:48,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:48,936 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-21 17:22:48,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:48,937 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-21 17:22:48,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 17:22:48,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:48,938 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-21 17:22:48,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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)] Forceful destruction successful, exit code 0 [2022-11-21 17:22:49,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:49,150 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:49,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-21 17:22:49,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:49,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833283031] [2022-11-21 17:22:49,151 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 17:22:49,152 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 [2022-11-21 17:22:49,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:49,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:22:49,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 (6)] Waiting until timeout for monitored process [2022-11-21 17:22:49,332 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 17:22:49,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:22:49,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-21 17:22:49,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:22:49,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:22:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:22:50,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:50,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833283031] [2022-11-21 17:22:50,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833283031] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:22:50,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:22:50,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-21 17:22:50,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852824666] [2022-11-21 17:22:50,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:22:50,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 17:22:50,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:50,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 17:22:50,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:22:50,124 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:50,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:50,350 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-11-21 17:22:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:22:50,351 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-21 17:22:50,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:50,352 INFO L225 Difference]: With dead ends: 18 [2022-11-21 17:22:50,352 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:22:50,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-21 17:22:50,353 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:50,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:22:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:22:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:22:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:22:50,355 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-21 17:22:50,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:50,355 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:22:50,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:50,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:22:50,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:22:50,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:22:50,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 (6)] Forceful destruction successful, exit code 0 [2022-11-21 17:22:50,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:22:50,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:22:50,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:22:50,751 INFO L895 garLoopResultBuilder]: At program point L102(lines 22 103) the Hoare annotation is: false [2022-11-21 17:22:50,751 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:22:50,752 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:22:50,752 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:22:50,752 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-21 17:22:50,752 INFO L895 garLoopResultBuilder]: At program point L55-2(lines 55 101) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_13~0#1| (_ bv5 32))) (.cse5 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (.cse2 (= (_ bv1048575 32) |ULTIMATE.start_main_~mask_SORT_4~0#1|)) (.cse3 (= (_ bv7 32) |ULTIMATE.start_main_~var_17~0#1|)) (.cse4 (= |ULTIMATE.start_main_~var_10~0#1| (_ bv1 32)))) (or (and .cse0 .cse1 (= (_ bv5 32) |ULTIMATE.start_main_~state_27~0#1|) (= (_ bv7 32) |ULTIMATE.start_main_~state_30~0#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~state_6~0#1| (_ bv1 32)) .cse4) (and .cse0 .cse1 .cse5 (= |ULTIMATE.start_main_~state_6~0#1| (_ bv7 32)) (= (_ bv5 32) |ULTIMATE.start_main_~state_30~0#1|) (= (_ bv1 32) |ULTIMATE.start_main_~state_27~0#1|) .cse2 .cse3 .cse4) (and .cse0 (= |ULTIMATE.start_main_~state_6~0#1| (_ bv5 32)) .cse1 .cse5 .cse2 .cse3 (= (_ bv7 32) |ULTIMATE.start_main_~state_27~0#1|) (= (_ bv1 32) |ULTIMATE.start_main_~state_30~0#1|) .cse4))) [2022-11-21 17:22:50,752 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-21 17:22:50,752 INFO L899 garLoopResultBuilder]: For program point L55-3(lines 55 101) no Hoare annotation was computed. [2022-11-21 17:22:50,753 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-21 17:22:50,753 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-21 17:22:50,756 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1] [2022-11-21 17:22:50,760 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:22:50,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:22:50 BoogieIcfgContainer [2022-11-21 17:22:50,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:22:50,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:22:50,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:22:50,777 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:22:50,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:44" (3/4) ... [2022-11-21 17:22:50,781 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:22:50,793 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 17:22:50,793 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 17:22:50,793 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:22:50,832 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:22:50,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:22:50,839 INFO L158 Benchmark]: Toolchain (without parser) took 7182.23ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 64.0MB in the beginning and 75.9MB in the end (delta: -11.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-21 17:22:50,839 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:22:50,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.88ms. Allocated memory is still 86.0MB. Free memory was 63.8MB in the beginning and 52.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:22:50,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.82ms. Allocated memory is still 86.0MB. Free memory was 52.4MB in the beginning and 50.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:22:50,841 INFO L158 Benchmark]: Boogie Preprocessor took 48.19ms. Allocated memory is still 86.0MB. Free memory was 50.9MB in the beginning and 49.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:22:50,841 INFO L158 Benchmark]: RCFGBuilder took 405.41ms. Allocated memory is still 86.0MB. Free memory was 49.4MB in the beginning and 58.8MB in the end (delta: -9.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-21 17:22:50,841 INFO L158 Benchmark]: TraceAbstraction took 6216.28ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 58.0MB in the beginning and 79.0MB in the end (delta: -21.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2022-11-21 17:22:50,842 INFO L158 Benchmark]: Witness Printer took 61.69ms. Allocated memory is still 125.8MB. Free memory was 79.0MB in the beginning and 75.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:22:50,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.88ms. Allocated memory is still 86.0MB. Free memory was 63.8MB in the beginning and 52.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.82ms. Allocated memory is still 86.0MB. Free memory was 52.4MB in the beginning and 50.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.19ms. Allocated memory is still 86.0MB. Free memory was 50.9MB in the beginning and 49.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.41ms. Allocated memory is still 86.0MB. Free memory was 49.4MB in the beginning and 58.8MB in the end (delta: -9.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6216.28ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 58.0MB in the beginning and 79.0MB in the end (delta: -21.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Witness Printer took 61.69ms. Allocated memory is still 125.8MB. Free memory was 79.0MB in the beginning and 75.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 112 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 29 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=3, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 83 HoareAnnotationTreeSize, 2 FomulaSimplifications, 68 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 34 QuantifiedInterpolants, 2440 SizeOfPredicates, 127 NumberOfNonLiveVariables, 655 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 10/100 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((((((1bv8 == mask_SORT_1 && var_13 == 5bv32) && 5bv32 == state_27) && 7bv32 == state_30) && 1048575bv32 == mask_SORT_4) && 7bv32 == var_17) && state_6 == 1bv32) && var_10 == 1bv32) || ((((((((1bv8 == mask_SORT_1 && var_13 == 5bv32) && cond == 1bv32) && state_6 == 7bv32) && 5bv32 == state_30) && 1bv32 == state_27) && 1048575bv32 == mask_SORT_4) && 7bv32 == var_17) && var_10 == 1bv32)) || ((((((((1bv8 == mask_SORT_1 && state_6 == 5bv32) && var_13 == 5bv32) && cond == 1bv32) && 1048575bv32 == mask_SORT_4) && 7bv32 == var_17) && 7bv32 == state_27) && 1bv32 == state_30) && var_10 == 1bv32) RESULT: Ultimate proved your program to be correct! [2022-11-21 17:22:50,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19f67cb5-cc19-4991-9c62-d9ea1f29519b/bin/uautomizer-vX5HgA9Q3a/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 Writing output log to file Ultimate.log Result: TRUE