./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN --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 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 --- 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-6b4ec56 [2022-11-20 12:49:55,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:49:55,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:49:55,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:49:55,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:49:55,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:49:55,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:49:55,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:49:55,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:49:55,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:49:55,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:49:55,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:49:55,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:49:55,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:49:55,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:49:55,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:49:55,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:49:55,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:49:55,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:49:55,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:49:55,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:49:55,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:49:55,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:49:55,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:49:56,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:49:56,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:49:56,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:49:56,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:49:56,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:49:56,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:49:56,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:49:56,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:49:56,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:49:56,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:49:56,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:49:56,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:49:56,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:49:56,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:49:56,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:49:56,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:49:56,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:49:56,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:49:56,058 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:49:56,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:49:56,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:49:56,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:49:56,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:49:56,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:49:56,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:49:56,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:49:56,061 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:49:56,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:49:56,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:49:56,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:49:56,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:49:56,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:49:56,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:49:56,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:49:56,065 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:49:56,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:49:56,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:49:56,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:49:56,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:49:56,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:49:56,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:49:56,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:49:56,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:49:56,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:49:56,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:49:56,068 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:49:56,068 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:49:56,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:49:56,069 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_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 [2022-11-20 12:49:56,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:49:56,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:49:56,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:49:56,358 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:49:56,359 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:49:56,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-11-20 12:49:59,476 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:49:59,704 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:49:59,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-11-20 12:49:59,710 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/data/80d617148/62c61c69e47b45938e22d39582206f4b/FLAG5c1cbc51b [2022-11-20 12:49:59,724 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/data/80d617148/62c61c69e47b45938e22d39582206f4b [2022-11-20 12:49:59,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:49:59,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:49:59,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:59,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:49:59,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:49:59,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:49:59,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd34b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59, skipping insertion in model container [2022-11-20 12:49:59,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:49:59,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:49:59,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:49:59,894 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_017e3979-3c42-43bf-8440-7905268763e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-11-20 12:49:59,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:59,935 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:49:59,950 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_017e3979-3c42-43bf-8440-7905268763e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-11-20 12:49:59,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:59,985 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:49:59,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59 WrapperNode [2022-11-20 12:49:59,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:59,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:49:59,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:49:59,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:49:59,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,023 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-11-20 12:50:00,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:50:00,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:50:00,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:50:00,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:50:00,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:50:00,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:50:00,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:50:00,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:50:00,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (1/1) ... [2022-11-20 12:50:00,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:50:00,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:50:00,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:50:00,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:50:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:50:00,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:50:00,234 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:50:00,236 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:50:00,387 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:50:00,394 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:50:00,395 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:50:00,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:50:00 BoogieIcfgContainer [2022-11-20 12:50:00,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:50:00,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:50:00,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:50:00,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:50:00,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:49:59" (1/3) ... [2022-11-20 12:50:00,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7ca22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:50:00, skipping insertion in model container [2022-11-20 12:50:00,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:59" (2/3) ... [2022-11-20 12:50:00,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7ca22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:50:00, skipping insertion in model container [2022-11-20 12:50:00,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:50:00" (3/3) ... [2022-11-20 12:50:00,411 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2022-11-20 12:50:00,436 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:50:00,436 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:50:00,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:50:00,491 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;@3599a628, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:50:00,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:50:00,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2022-11-20 12:50:00,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 12:50:00,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:00,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:00,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:50:00,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:00,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1809708109, now seen corresponding path program 1 times [2022-11-20 12:50:00,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:00,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166281366] [2022-11-20 12:50:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:00,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:00,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:50:00,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:50:00,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166281366] [2022-11-20 12:50:00,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166281366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:00,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:00,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:50:00,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52790202] [2022-11-20 12:50:00,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:00,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:50:00,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:50:00,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:50:00,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:50:00,824 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-20 12:50:00,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:00,852 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-11-20 12:50:00,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:50:00,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-20 12:50:00,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:00,863 INFO L225 Difference]: With dead ends: 20 [2022-11-20 12:50:00,864 INFO L226 Difference]: Without dead ends: 9 [2022-11-20 12:50:00,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:50:00,872 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:00,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:50:00,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-20 12:50:00,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-20 12:50:00,903 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) [2022-11-20 12:50:00,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 12:50:00,906 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-11-20 12:50:00,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:00,908 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 12:50:00,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-20 12:50:00,909 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 12:50:00,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 12:50:00,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:00,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:00,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:50:00,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:50:00,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:00,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1809767691, now seen corresponding path program 1 times [2022-11-20 12:50:00,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:00,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924007004] [2022-11-20 12:50:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:00,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:50:01,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:50:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:50:01,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:50:01,155 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:50:01,157 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:50:01,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:50:01,161 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 12:50:01,164 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:50:01,176 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 12:50:01,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:50:01 BoogieIcfgContainer [2022-11-20 12:50:01,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:50:01,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:50:01,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:50:01,185 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:50:01,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:50:00" (3/4) ... [2022-11-20 12:50:01,188 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:50:01,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:50:01,189 INFO L158 Benchmark]: Toolchain (without parser) took 1461.12ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 140.1MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:50:01,190 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:50:01,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.91ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 119.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:50:01,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.23ms. Allocated memory is still 176.2MB. Free memory was 119.5MB in the beginning and 118.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:50:01,191 INFO L158 Benchmark]: Boogie Preprocessor took 32.92ms. Allocated memory is still 176.2MB. Free memory was 118.0MB in the beginning and 116.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:50:01,192 INFO L158 Benchmark]: RCFGBuilder took 338.74ms. Allocated memory is still 176.2MB. Free memory was 116.8MB in the beginning and 103.4MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:50:01,192 INFO L158 Benchmark]: TraceAbstraction took 783.91ms. Allocated memory is still 176.2MB. Free memory was 102.7MB in the beginning and 140.1MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:50:01,193 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 176.2MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:50:01,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.91ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 119.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.23ms. Allocated memory is still 176.2MB. Free memory was 119.5MB in the beginning and 118.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.92ms. Allocated memory is still 176.2MB. Free memory was 118.0MB in the beginning and 116.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 338.74ms. Allocated memory is still 176.2MB. Free memory was 116.8MB in the beginning and 103.4MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 783.91ms. Allocated memory is still 176.2MB. Free memory was 102.7MB in the beginning and 140.1MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 176.2MB. Free memory is still 140.1MB. 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: 21]: 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 49, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_1 var_10 = 1; [L30] const SORT_1 var_13 = 0; [L32] SORT_1 input_2; [L34] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L35] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 init_12_arg_1 = var_10; [L39] state_11 = init_12_arg_1 VAL [init_12_arg_1=1, mask_SORT_1=1, msb_SORT_1=1, state_11=1, state_3=5, state_4=5, var_10=1, var_13=0] [L42] input_2 = __VERIFIER_nondet_uchar() [L43] input_2 = input_2 & mask_SORT_1 [L45] SORT_1 var_9_arg_0 = state_3; [L46] SORT_1 var_9_arg_1 = state_4; [L47] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L48] SORT_1 var_15_arg_0 = state_11; [L49] SORT_1 var_15_arg_1 = ~var_9; [L50] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L51] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L52] SORT_1 constr_16_arg_0 = var_15; [L53] CALL assume_abort_if_not(constr_16_arg_0) [L22] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L53] RET assume_abort_if_not(constr_16_arg_0) [L55] SORT_1 bad_17_arg_0 = var_9; [L56] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-11-20 12:50:01,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN --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 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 --- 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-6b4ec56 [2022-11-20 12:50:03,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:50:03,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:50:03,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:50:03,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:50:03,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:50:03,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:50:03,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:50:03,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:50:03,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:50:03,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:50:03,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:50:03,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:50:03,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:50:03,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:50:03,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:50:03,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:50:03,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:50:03,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:50:03,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:50:03,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:50:03,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:50:03,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:50:03,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:50:03,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:50:03,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:50:03,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:50:03,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:50:03,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:50:03,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:50:03,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:50:03,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:50:03,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:50:03,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:50:03,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:50:03,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:50:03,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:50:03,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:50:03,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:50:03,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:50:03,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:50:03,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:50:03,861 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:50:03,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:50:03,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:50:03,862 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:50:03,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:50:03,863 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:50:03,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:50:03,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:50:03,864 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:50:03,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:50:03,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:50:03,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:50:03,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:50:03,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:50:03,866 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:50:03,866 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:50:03,866 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:50:03,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:50:03,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:50:03,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:50:03,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:50:03,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:50:03,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:50:03,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:50:03,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:50:03,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:50:03,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:50:03,869 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:50:03,870 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:50:03,870 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:50:03,870 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:50:03,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:50:03,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:50:03,871 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_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e232604fc8babca2c5f057d102e5792a7cbb61e14baa729377b71bb6569c56 [2022-11-20 12:50:04,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:50:04,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:50:04,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:50:04,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:50:04,285 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:50:04,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-11-20 12:50:07,481 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:50:07,677 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:50:07,678 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2022-11-20 12:50:07,685 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/data/de90ac8b9/6f13347108534f74922ece084f0032dd/FLAG73332e37a [2022-11-20 12:50:07,707 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/data/de90ac8b9/6f13347108534f74922ece084f0032dd [2022-11-20 12:50:07,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:50:07,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:50:07,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:50:07,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:50:07,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:50:07,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:50:07" (1/1) ... [2022-11-20 12:50:07,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2548bf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:07, skipping insertion in model container [2022-11-20 12:50:07,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:50:07" (1/1) ... [2022-11-20 12:50:07,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:50:07,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:50:07,960 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_017e3979-3c42-43bf-8440-7905268763e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-11-20 12:50:08,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:50:08,023 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:50:08,035 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_017e3979-3c42-43bf-8440-7905268763e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1117,1130] [2022-11-20 12:50:08,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:50:08,086 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:50:08,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08 WrapperNode [2022-11-20 12:50:08,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:50:08,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:50:08,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:50:08,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:50:08,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,136 INFO L138 Inliner]: procedures = 11, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-11-20 12:50:08,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:50:08,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:50:08,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:50:08,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:50:08,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,186 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:50:08,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:50:08,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:50:08,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:50:08,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (1/1) ... [2022-11-20 12:50:08,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:50:08,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:50:08,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:50:08,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:50:08,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:50:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:50:08,353 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:50:08,355 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:50:08,501 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:50:08,508 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:50:08,508 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:50:08,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:50:08 BoogieIcfgContainer [2022-11-20 12:50:08,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:50:08,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:50:08,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:50:08,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:50:08,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:50:07" (1/3) ... [2022-11-20 12:50:08,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7116e4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:50:08, skipping insertion in model container [2022-11-20 12:50:08,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:50:08" (2/3) ... [2022-11-20 12:50:08,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7116e4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:50:08, skipping insertion in model container [2022-11-20 12:50:08,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:50:08" (3/3) ... [2022-11-20 12:50:08,519 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2022-11-20 12:50:08,539 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:50:08,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:50:08,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:50:08,594 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;@28e6ac1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:50:08,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:50:08,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2022-11-20 12:50:08,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 12:50:08,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:08,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:08,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:50:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:08,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1809708109, now seen corresponding path program 1 times [2022-11-20 12:50:08,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:08,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438225658] [2022-11-20 12:50:08,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:08,626 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 [2022-11-20 12:50:08,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:08,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:50:08,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:50:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:08,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:50:08,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:50:08,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:08,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:08,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438225658] [2022-11-20 12:50:08,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438225658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:08,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:08,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:50:08,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490335392] [2022-11-20 12:50:08,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:08,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:50:08,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:08,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:50:08,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:50:08,854 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-20 12:50:08,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:08,871 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-11-20 12:50:08,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:50:08,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-20 12:50:08,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:08,881 INFO L225 Difference]: With dead ends: 20 [2022-11-20 12:50:08,882 INFO L226 Difference]: Without dead ends: 9 [2022-11-20 12:50:08,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:50:08,888 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:08,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:50:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-20 12:50:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-20 12:50:08,918 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) [2022-11-20 12:50:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 12:50:08,920 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-11-20 12:50:08,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:08,921 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 12:50:08,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-20 12:50:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 12:50:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 12:50:08,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:08,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:08,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:50:09,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:50:09,142 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:50:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:09,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1809767691, now seen corresponding path program 1 times [2022-11-20 12:50:09,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:09,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295060818] [2022-11-20 12:50:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:09,144 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 [2022-11-20 12:50:09,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:09,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:50:09,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:50:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:09,228 WARN L261 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 12:50:09,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:50:09,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:09,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:09,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295060818] [2022-11-20 12:50:09,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295060818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:09,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:09,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:50:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694877798] [2022-11-20 12:50:09,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:09,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:50:09,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:09,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:50:09,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:50:09,645 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-20 12:50:09,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:09,916 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-20 12:50:09,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:50:09,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 7 [2022-11-20 12:50:09,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:09,918 INFO L225 Difference]: With dead ends: 19 [2022-11-20 12:50:09,918 INFO L226 Difference]: Without dead ends: 17 [2022-11-20 12:50:09,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:50:09,920 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:09,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 28 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:50:09,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-20 12:50:09,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2022-11-20 12:50:09,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 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) [2022-11-20 12:50:09,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-20 12:50:09,940 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2022-11-20 12:50:09,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:09,941 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-20 12:50:09,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-20 12:50:09,941 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-20 12:50:09,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 12:50:09,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:09,942 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:09,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:50:10,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:50:10,143 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:50:10,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:10,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1841040349, now seen corresponding path program 1 times [2022-11-20 12:50:10,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:10,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756480006] [2022-11-20 12:50:10,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:10,146 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 [2022-11-20 12:50:10,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:10,150 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:50:10,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:50:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:50:10,203 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:50:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:50:10,258 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-20 12:50:10,259 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:50:10,260 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:50:10,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:50:10,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:50:10,477 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 12:50:10,481 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:50:10,509 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 12:50:10,509 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 12:50:10,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:50:10 BoogieIcfgContainer [2022-11-20 12:50:10,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:50:10,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:50:10,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:50:10,517 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:50:10,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:50:08" (3/4) ... [2022-11-20 12:50:10,520 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 12:50:10,526 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 12:50:10,526 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 12:50:10,569 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:50:10,569 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:50:10,570 INFO L158 Benchmark]: Toolchain (without parser) took 2855.61ms. Allocated memory was 90.2MB in the beginning and 136.3MB in the end (delta: 46.1MB). Free memory was 48.5MB in the beginning and 88.9MB in the end (delta: -40.4MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-20 12:50:10,570 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:50:10,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.95ms. Allocated memory is still 90.2MB. Free memory was 48.2MB in the beginning and 65.3MB in the end (delta: -17.1MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-11-20 12:50:10,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.70ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 63.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:50:10,572 INFO L158 Benchmark]: Boogie Preprocessor took 56.66ms. Allocated memory is still 90.2MB. Free memory was 63.6MB in the beginning and 62.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:50:10,572 INFO L158 Benchmark]: RCFGBuilder took 315.46ms. Allocated memory is still 90.2MB. Free memory was 62.2MB in the beginning and 51.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:50:10,573 INFO L158 Benchmark]: TraceAbstraction took 2004.11ms. Allocated memory was 90.2MB in the beginning and 136.3MB in the end (delta: 46.1MB). Free memory was 50.7MB in the beginning and 91.7MB in the end (delta: -40.9MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-11-20 12:50:10,573 INFO L158 Benchmark]: Witness Printer took 52.16ms. Allocated memory is still 136.3MB. Free memory was 91.7MB in the beginning and 88.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:50:10,576 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 90.2MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.95ms. Allocated memory is still 90.2MB. Free memory was 48.2MB in the beginning and 65.3MB in the end (delta: -17.1MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.70ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 63.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.66ms. Allocated memory is still 90.2MB. Free memory was 63.6MB in the beginning and 62.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 315.46ms. Allocated memory is still 90.2MB. Free memory was 62.2MB in the beginning and 51.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2004.11ms. Allocated memory was 90.2MB in the beginning and 136.3MB in the end (delta: 46.1MB). Free memory was 50.7MB in the beginning and 91.7MB in the end (delta: -40.9MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Witness Printer took 52.16ms. Allocated memory is still 136.3MB. Free memory was 91.7MB in the beginning and 88.9MB in the end (delta: 2.8MB). 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 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_1 var_10 = 1; [L30] const SORT_1 var_13 = 0; [L32] SORT_1 input_2; [L34] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L35] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L38] SORT_1 init_12_arg_1 = var_10; [L39] state_11 = init_12_arg_1 VAL [init_12_arg_1=1, mask_SORT_1=1, msb_SORT_1=1, state_11=1, state_3=0, state_4=1, var_10=1, var_13=0] [L42] input_2 = __VERIFIER_nondet_uchar() [L43] input_2 = input_2 & mask_SORT_1 [L45] SORT_1 var_9_arg_0 = state_3; [L46] SORT_1 var_9_arg_1 = state_4; [L47] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L48] SORT_1 var_15_arg_0 = state_11; [L49] SORT_1 var_15_arg_1 = ~var_9; [L50] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L51] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L52] SORT_1 constr_16_arg_0 = var_15; [L53] CALL assume_abort_if_not(constr_16_arg_0) [L22] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L53] RET assume_abort_if_not(constr_16_arg_0) [L55] SORT_1 bad_17_arg_0 = var_9; [L56] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L56] RET __VERIFIER_assert(!(bad_17_arg_0)) [L58] SORT_1 var_5_arg_0 = ~input_2; [L59] var_5_arg_0 = var_5_arg_0 & mask_SORT_1 [L60] SORT_1 var_5_arg_1 = ~state_3; [L61] var_5_arg_1 = var_5_arg_1 & mask_SORT_1 [L62] SORT_1 var_5_arg_2 = state_3; [L63] SORT_1 var_5 = var_5_arg_0 ? var_5_arg_1 : var_5_arg_2; [L64] var_5 = var_5 & mask_SORT_1 [L65] SORT_1 next_7_arg_1 = var_5; [L66] SORT_1 var_6_arg_0 = input_2; [L67] SORT_1 var_6_arg_1 = ~state_4; [L68] var_6_arg_1 = var_6_arg_1 & mask_SORT_1 [L69] SORT_1 var_6_arg_2 = state_4; [L70] SORT_1 var_6 = var_6_arg_0 ? var_6_arg_1 : var_6_arg_2; [L71] var_6 = var_6 & mask_SORT_1 [L72] SORT_1 next_8_arg_1 = var_6; [L73] SORT_1 next_14_arg_1 = var_13; [L75] state_3 = next_7_arg_1 [L76] state_4 = next_8_arg_1 [L77] state_11 = next_14_arg_1 VAL [bad_17_arg_0=0, constr_16_arg_0=1, init_12_arg_1=1, input_2=0, mask_SORT_1=1, msb_SORT_1=1, next_14_arg_1=0, next_7_arg_1=1, next_8_arg_1=1, state_11=0, state_3=1, state_4=1, var_10=1, var_13=0, var_15=1, var_15_arg_0=1, var_15_arg_1=1, var_5=1, var_5_arg_0=1, var_5_arg_1=1, var_5_arg_2=0, var_6=1, var_6_arg_0=0, var_6_arg_1=0, var_6_arg_2=1, var_9=0, var_9_arg_0=0, var_9_arg_1=1] [L42] input_2 = __VERIFIER_nondet_uchar() [L43] input_2 = input_2 & mask_SORT_1 [L45] SORT_1 var_9_arg_0 = state_3; [L46] SORT_1 var_9_arg_1 = state_4; [L47] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L48] SORT_1 var_15_arg_0 = state_11; [L49] SORT_1 var_15_arg_1 = ~var_9; [L50] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L51] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L52] SORT_1 constr_16_arg_0 = var_15; [L53] CALL assume_abort_if_not(constr_16_arg_0) [L22] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L53] RET assume_abort_if_not(constr_16_arg_0) [L55] SORT_1 bad_17_arg_0 = var_9; [L56] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 15 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect! [2022-11-20 12:50:10,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017e3979-3c42-43bf-8440-7905268763e0/bin/uautomizer-ug76WZFUDN/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE