./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3783d3587da248155a249631d60a45401ba312300bba2be3ca998d8320e145d4 --- 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-e04fb08 [2022-11-16 16:13:04,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:13:04,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:13:04,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:13:04,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:13:04,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:13:04,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:13:04,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:13:04,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:13:04,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:13:04,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:13:04,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:13:04,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:13:04,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:13:04,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:13:04,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:13:04,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:13:04,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:13:04,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:13:04,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:13:04,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:13:04,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:13:04,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:13:04,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:13:04,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:13:04,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:13:04,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:13:04,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:13:04,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:13:04,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:13:04,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:13:04,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:13:04,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:13:04,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:13:04,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:13:04,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:13:04,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:13:04,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:13:04,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:13:04,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:13:04,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:13:04,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 16:13:05,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:13:05,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:13:05,037 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:13:05,037 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:13:05,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:13:05,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:13:05,043 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:13:05,043 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:13:05,043 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:13:05,043 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:13:05,044 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:13:05,045 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:13:05,045 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:13:05,045 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:13:05,045 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:13:05,046 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:13:05,046 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:13:05,046 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:13:05,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:13:05,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:13:05,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:13:05,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:13:05,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:13:05,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:13:05,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:13:05,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:13:05,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:13:05,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:13:05,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:13:05,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:13:05,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:13:05,051 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:13:05,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:13:05,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:13:05,052 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:13:05,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:13:05,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:13:05,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:13:05,053 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_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3783d3587da248155a249631d60a45401ba312300bba2be3ca998d8320e145d4 [2022-11-16 16:13:05,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:13:05,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:13:05,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:13:05,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:13:05,411 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:13:05,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-16 16:13:05,482 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data/051f4906e/561c941b0eb44cc99aa50192312fa810/FLAG48047e720 [2022-11-16 16:13:06,072 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:13:06,072 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-16 16:13:06,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data/051f4906e/561c941b0eb44cc99aa50192312fa810/FLAG48047e720 [2022-11-16 16:13:06,355 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data/051f4906e/561c941b0eb44cc99aa50192312fa810 [2022-11-16 16:13:06,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:13:06,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:13:06,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:13:06,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:13:06,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:13:06,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:06,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11eb3843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06, skipping insertion in model container [2022-11-16 16:13:06,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:06,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:13:06,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:13:06,656 WARN L229 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_c1970fef-4329-4ae3-8174-007fd792a949/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c[1014,1027] [2022-11-16 16:13:06,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:13:06,828 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:13:06,840 WARN L229 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_c1970fef-4329-4ae3-8174-007fd792a949/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c[1014,1027] [2022-11-16 16:13:06,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:13:06,932 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:13:06,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06 WrapperNode [2022-11-16 16:13:06,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:13:06,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:13:06,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:13:06,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:13:06,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:06,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,064 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 711 [2022-11-16 16:13:07,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:13:07,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:13:07,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:13:07,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:13:07,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:13:07,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:13:07,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:13:07,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:13:07,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (1/1) ... [2022-11-16 16:13:07,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:13:07,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:13:07,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:13:07,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:13:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:13:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:13:07,450 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:13:07,452 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:13:08,527 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:13:09,821 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:13:09,821 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 16:13:09,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:13:09 BoogieIcfgContainer [2022-11-16 16:13:09,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:13:09,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:13:09,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:13:09,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:13:09,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:13:06" (1/3) ... [2022-11-16 16:13:09,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd7d52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:13:09, skipping insertion in model container [2022-11-16 16:13:09,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:06" (2/3) ... [2022-11-16 16:13:09,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd7d52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:13:09, skipping insertion in model container [2022-11-16 16:13:09,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:13:09" (3/3) ... [2022-11-16 16:13:09,833 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-16 16:13:09,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:13:09,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:13:09,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:13:09,928 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=FINITE_AUTOMATA, 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;@54ae0d2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:13:09,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:13:09,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-16 16:13:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 16:13:09,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:13:09,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 16:13:09,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:13:09,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:13:09,946 INFO L85 PathProgramCache]: Analyzing trace with hash 16801193, now seen corresponding path program 1 times [2022-11-16 16:13:09,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:13:09,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019486421] [2022-11-16 16:13:09,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:13:09,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:13:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 16:13:10,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 16:13:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 16:13:10,444 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 16:13:10,450 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 16:13:10,451 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 16:13:10,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:13:10,458 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 16:13:10,462 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:13:10,496 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 16:13:10,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:13:10 BoogieIcfgContainer [2022-11-16 16:13:10,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:13:10,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:13:10,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:13:10,512 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:13:10,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:13:09" (3/4) ... [2022-11-16 16:13:10,516 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 16:13:10,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:13:10,519 INFO L158 Benchmark]: Toolchain (without parser) took 4160.30ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 79.4MB in the beginning and 88.3MB in the end (delta: -8.9MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-11-16 16:13:10,520 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:13:10,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.52ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 81.4MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 16:13:10,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.98ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 73.9MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 16:13:10,523 INFO L158 Benchmark]: Boogie Preprocessor took 108.13ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 69.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 16:13:10,528 INFO L158 Benchmark]: RCFGBuilder took 2650.22ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 69.4MB in the beginning and 124.0MB in the end (delta: -54.6MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2022-11-16 16:13:10,530 INFO L158 Benchmark]: TraceAbstraction took 683.02ms. Allocated memory is still 192.9MB. Free memory was 122.9MB in the beginning and 88.3MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-16 16:13:10,530 INFO L158 Benchmark]: Witness Printer took 6.18ms. Allocated memory is still 192.9MB. Free memory was 88.3MB in the beginning and 88.3MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:13:10,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 573.52ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 81.4MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.98ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 73.9MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 108.13ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 69.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2650.22ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 69.4MB in the beginning and 124.0MB in the end (delta: -54.6MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. * TraceAbstraction took 683.02ms. Allocated memory is still 192.9MB. Free memory was 122.9MB in the beginning and 88.3MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 6.18ms. Allocated memory is still 192.9MB. Free memory was 88.3MB in the beginning and 88.3MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 104, overapproximation of shiftRight at line 108, overapproximation of bitwiseAnd at line 86, overapproximation of bitwiseComplement at line 106, overapproximation of bitwiseXor at line 101. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 5); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (5 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_3 var_5 = 0; [L38] const SORT_1 var_12 = 0; [L39] const SORT_4 var_27 = 749; [L40] const SORT_3 var_28 = 1; [L41] const SORT_3 var_30 = 0; [L42] const SORT_4 var_32 = 16; [L43] const SORT_4 var_79 = 400; [L45] SORT_1 input_37; [L46] SORT_1 input_38; [L47] SORT_1 input_43; [L48] SORT_1 input_48; [L49] SORT_1 input_52; [L50] SORT_1 input_57; [L52] SORT_3 state_6 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L53] SORT_3 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L54] SORT_3 state_10 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L55] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L59] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L60] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L61] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] SORT_3 init_7_arg_1 = var_5; [L64] state_6 = init_7_arg_1 [L65] SORT_3 init_9_arg_1 = var_5; [L66] state_8 = init_9_arg_1 [L67] SORT_3 init_11_arg_1 = var_5; [L68] state_10 = init_11_arg_1 [L69] SORT_1 init_14_arg_1 = var_12; [L70] state_13 = init_14_arg_1 [L71] SORT_1 init_16_arg_1 = var_12; [L72] state_15 = init_16_arg_1 [L73] SORT_1 init_18_arg_1 = var_12; [L74] state_17 = init_18_arg_1 [L75] SORT_1 init_20_arg_1 = var_12; [L76] state_19 = init_20_arg_1 [L77] SORT_1 init_22_arg_1 = var_12; [L78] state_21 = init_22_arg_1 [L79] SORT_1 init_24_arg_1 = var_12; [L80] state_23 = init_24_arg_1 [L81] SORT_1 init_26_arg_1 = var_12; [L82] state_25 = init_26_arg_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=749, var_28=1, var_30=0, var_32=16, var_5=0, var_79=400] [L85] input_37 = __VERIFIER_nondet_uchar() [L86] input_37 = input_37 & mask_SORT_1 [L87] input_38 = __VERIFIER_nondet_uchar() [L88] input_38 = input_38 & mask_SORT_1 [L89] input_43 = __VERIFIER_nondet_uchar() [L90] input_43 = input_43 & mask_SORT_1 [L91] input_48 = __VERIFIER_nondet_uchar() [L92] input_48 = input_48 & mask_SORT_1 [L93] input_52 = __VERIFIER_nondet_uchar() [L94] input_52 = input_52 & mask_SORT_1 [L95] input_57 = __VERIFIER_nondet_uchar() [L96] input_57 = input_57 & mask_SORT_1 [L99] SORT_3 var_29_arg_0 = var_28; [L100] SORT_3 var_29_arg_1 = state_6; [L101] SORT_3 var_29 = var_29_arg_0 ^ var_29_arg_1; [L102] SORT_3 var_31_arg_0 = var_29; [L103] SORT_3 var_31_arg_1 = var_30; [L104] SORT_4 var_31 = ((SORT_4)var_31_arg_0 << 16) | var_31_arg_1; [L105] SORT_4 var_33_arg_0 = var_31; [L106] var_33_arg_0 = (var_33_arg_0 & msb_SORT_4) ? (var_33_arg_0 | ~mask_SORT_4) : (var_33_arg_0 & mask_SORT_4) [L107] SORT_4 var_33_arg_1 = var_32; [L108] SORT_4 var_33 = (int)var_33_arg_0 >> var_33_arg_1; [L109] var_33 = (var_33_arg_0 & msb_SORT_4) ? (var_33 | ~(mask_SORT_4 >> var_33_arg_1)) : var_33 [L110] var_33 = var_33 & mask_SORT_4 [L111] SORT_4 var_34_arg_0 = var_27; [L112] SORT_4 var_34_arg_1 = var_33; [L113] SORT_1 var_34 = var_34_arg_0 == var_34_arg_1; [L114] SORT_1 var_35_arg_0 = ~state_25; [L115] var_35_arg_0 = var_35_arg_0 & mask_SORT_1 [L116] SORT_1 var_35_arg_1 = var_34; [L117] SORT_1 var_35 = var_35_arg_0 & var_35_arg_1; [L118] var_35 = var_35 & mask_SORT_1 [L119] SORT_1 bad_36_arg_0 = var_35; [L120] CALL __VERIFIER_assert(!(bad_36_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 16:13:10,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3783d3587da248155a249631d60a45401ba312300bba2be3ca998d8320e145d4 --- 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-e04fb08 [2022-11-16 16:13:12,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:13:12,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:13:12,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:13:12,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:13:12,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:13:12,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:13:12,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:13:12,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:13:12,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:13:12,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:13:12,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:13:12,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:13:12,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:13:12,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:13:12,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:13:12,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:13:12,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:13:12,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:13:12,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:13:12,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:13:12,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:13:12,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:13:12,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:13:12,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:13:12,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:13:12,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:13:12,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:13:12,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:13:12,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:13:12,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:13:12,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:13:12,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:13:12,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:13:12,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:13:12,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:13:12,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:13:12,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:13:12,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:13:12,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:13:12,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:13:12,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-16 16:13:13,034 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:13:13,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:13:13,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:13:13,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:13:13,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:13:13,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:13:13,038 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:13:13,038 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:13:13,038 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:13:13,039 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:13:13,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:13:13,040 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:13:13,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:13:13,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:13:13,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:13:13,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:13:13,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:13:13,043 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 16:13:13,044 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 16:13:13,044 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 16:13:13,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:13:13,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:13:13,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:13:13,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:13:13,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 16:13:13,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:13:13,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:13:13,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:13:13,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:13:13,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:13:13,047 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 16:13:13,047 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 16:13:13,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:13:13,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:13:13,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 16:13:13,049 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_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3783d3587da248155a249631d60a45401ba312300bba2be3ca998d8320e145d4 [2022-11-16 16:13:13,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:13:13,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:13:13,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:13:13,497 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:13:13,498 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:13:13,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-16 16:13:13,568 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data/d416fc028/4549f78ac75140c69fbd37f2f7d1b35c/FLAGbb8379d27 [2022-11-16 16:13:14,153 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:13:14,154 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-16 16:13:14,172 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data/d416fc028/4549f78ac75140c69fbd37f2f7d1b35c/FLAGbb8379d27 [2022-11-16 16:13:14,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/data/d416fc028/4549f78ac75140c69fbd37f2f7d1b35c [2022-11-16 16:13:14,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:13:14,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:13:14,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:13:14,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:13:14,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:13:14,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:14,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632a9e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14, skipping insertion in model container [2022-11-16 16:13:14,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:14,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:13:14,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:13:14,642 WARN L229 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_c1970fef-4329-4ae3-8174-007fd792a949/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c[1014,1027] [2022-11-16 16:13:14,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:13:14,787 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:13:14,812 WARN L229 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_c1970fef-4329-4ae3-8174-007fd792a949/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c[1014,1027] [2022-11-16 16:13:14,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:13:14,899 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:13:14,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14 WrapperNode [2022-11-16 16:13:14,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:13:14,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:13:14,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:13:14,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:13:14,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:14,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:14,997 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-11-16 16:13:14,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:13:14,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:13:14,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:13:14,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:13:15,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:15,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:15,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:15,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:15,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:15,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:15,053 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:15,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:15,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:13:15,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:13:15,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:13:15,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:13:15,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (1/1) ... [2022-11-16 16:13:15,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:13:15,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:13:15,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:13:15,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:13:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:13:15,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:13:15,372 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:13:15,374 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:13:16,035 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:13:16,042 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:13:16,042 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 16:13:16,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:13:16 BoogieIcfgContainer [2022-11-16 16:13:16,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:13:16,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:13:16,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:13:16,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:13:16,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:13:14" (1/3) ... [2022-11-16 16:13:16,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f14a248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:13:16, skipping insertion in model container [2022-11-16 16:13:16,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:13:14" (2/3) ... [2022-11-16 16:13:16,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f14a248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:13:16, skipping insertion in model container [2022-11-16 16:13:16,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:13:16" (3/3) ... [2022-11-16 16:13:16,054 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-16 16:13:16,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:13:16,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 16:13:16,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:13:16,144 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=FINITE_AUTOMATA, 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;@663a8c56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:13:16,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 16:13:16,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:13:16,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 16:13:16,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:13:16,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 16:13:16,156 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:13:16,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:13:16,162 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 16:13:16,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:13:16,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669592252] [2022-11-16 16:13:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:13:16,176 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 [2022-11-16 16:13:16,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:13:16,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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) [2022-11-16 16:13:16,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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 [2022-11-16 16:13:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:13:16,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 16:13:16,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:13:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:13:16,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:13:16,846 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:13:16,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669592252] [2022-11-16 16:13:16,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669592252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:13:16,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:13:16,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:13:16,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252977676] [2022-11-16 16:13:16,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:13:16,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:13:16,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:13:16,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:13:16,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:13:16,886 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:13:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:13:17,005 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 16:13:17,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:13:17,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 16:13:17,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:13:17,016 INFO L225 Difference]: With dead ends: 20 [2022-11-16 16:13:17,016 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 16:13:17,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:13:17,022 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:13:17,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:13:17,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 16:13:17,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 16:13:17,056 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) [2022-11-16 16:13:17,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 16:13:17,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 16:13:17,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:13:17,058 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 16:13:17,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:13:17,059 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 16:13:17,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 16:13:17,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:13:17,060 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 16:13:17,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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 [2022-11-16 16:13:17,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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 [2022-11-16 16:13:17,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 16:13:17,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:13:17,276 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 16:13:17,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 16:13:17,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779298693] [2022-11-16 16:13:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:13:17,278 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 [2022-11-16 16:13:17,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 16:13:17,279 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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) [2022-11-16 16:13:17,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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 [2022-11-16 16:13:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:13:17,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-16 16:13:17,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:14:17,455 WARN L233 SmtUtils]: Spent 58.79s on a formula simplification. DAG size of input: 148 DAG size of output: 145 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:14:17,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:14:17,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:14:20,951 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~var_137_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_138_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_123_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_89_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_109_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_86_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_91_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_99_arg_1~0#1_3| (_ BitVec 8))) (= ((_ extract 7 0) (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_137_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_99_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_23~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_37~0#1|)))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_89_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_86_arg_0~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_17~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_38~0#1|)))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_91_arg_1~0#1_3|)))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_109_arg_1~0#1_4|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_3|))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_138_arg_1~0#1_4|))))))) .cse0))))))))) (_ bv1 32)))) .cse0))) (_ bv0 8))) (let ((.cse7 (bvnot (bvlshr |c_ULTIMATE.start_main_~mask_SORT_4~0#1| |c_ULTIMATE.start_main_~var_32~0#1|))) (.cse8 (bvnot |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)) (.cse9 ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_28~0#1|)) (.cse14 (= |c_ULTIMATE.start_main_~input_37~0#1| (_ bv0 8)))) (let ((.cse1 (= |c_ULTIMATE.start_main_~input_38~0#1| (_ bv0 8))) (.cse3 (not .cse14)) (.cse2 (or (and (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse12 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand (bvashr (bvand .cse12 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|)) (not (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse12)))))) (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse13 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse13 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)) (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse13)))))) .cse14))) (and (or (not .cse1) (and .cse2 (or .cse3 (let ((.cse5 (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_29~0#1|))))) .cse9))) .cse9))) (_ bv16 32)))) (and (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse4 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse4) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| .cse4) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse6 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse6) (_ bv0 32)) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse6 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)))))))))) (or .cse1 (and (or .cse3 (and (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse10 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand .cse10 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32)) (not (= (bvand (bvor .cse7 (bvashr (bvor .cse10 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse11 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand .cse11 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand .cse11 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))))) .cse2)))))) is different from false [2022-11-16 16:15:37,653 WARN L233 SmtUtils]: Spent 1.22m on a formula simplification that was a NOOP. DAG size: 227 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:15:37,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-16 16:15:37,818 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 16:15:37,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779298693] [2022-11-16 16:15:37,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779298693] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:15:37,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [521381808] [2022-11-16 16:15:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:15:37,823 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 16:15:37,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 16:15:37,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 16:15:37,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-16 16:15:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:15:38,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-16 16:15:38,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:16:20,015 WARN L233 SmtUtils]: Spent 37.12s on a formula simplification that was a NOOP. DAG size: 151 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:16:20,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:16:20,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:16:31,825 WARN L233 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 215 DAG size of output: 209 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:18:00,518 WARN L233 SmtUtils]: Spent 1.37m on a formula simplification that was a NOOP. DAG size: 219 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 16:18:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:18:00,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [521381808] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:18:00,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893122818] [2022-11-16 16:18:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:18:00,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:18:00,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:18:00,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:18:00,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:18:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:18:00,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-16 16:18:00,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:18:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:18:02,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:18:38,002 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-16 16:18:38,003 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2022-11-16 16:18:38,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-16 16:18:38,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 16 [2022-11-16 16:18:38,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413684343] [2022-11-16 16:18:38,004 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-16 16:18:38,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 16:18:38,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 16:18:38,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 16:18:38,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=186, Unknown=5, NotChecked=28, Total=272 [2022-11-16 16:18:38,006 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 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) [2022-11-16 16:18:38,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-11-16 16:18:38,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 277.2s TimeCoverageRelationStatistics Valid=53, Invalid=186, Unknown=5, NotChecked=28, Total=272 [2022-11-16 16:18:38,013 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:18:38,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2022-11-16 16:18:38,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-16 16:18:38,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:18:38,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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 [2022-11-16 16:18:38,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/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 [2022-11-16 16:18:38,619 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:278) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:365) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 36 more [2022-11-16 16:18:38,623 INFO L158 Benchmark]: Toolchain (without parser) took 324159.88ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 57.6MB in the beginning and 50.6MB in the end (delta: 7.0MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2022-11-16 16:18:38,623 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 75.5MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:18:38,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.09ms. Allocated memory is still 75.5MB. Free memory was 57.3MB in the beginning and 51.6MB in the end (delta: 5.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-11-16 16:18:38,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.70ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 47.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 16:18:38,625 INFO L158 Benchmark]: Boogie Preprocessor took 62.15ms. Allocated memory is still 75.5MB. Free memory was 47.8MB in the beginning and 44.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:18:38,625 INFO L158 Benchmark]: RCFGBuilder took 983.59ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 44.9MB in the beginning and 61.2MB in the end (delta: -16.3MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-11-16 16:18:38,626 INFO L158 Benchmark]: TraceAbstraction took 322575.31ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 60.7MB in the beginning and 50.6MB in the end (delta: 10.1MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-11-16 16:18:38,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 75.5MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.09ms. Allocated memory is still 75.5MB. Free memory was 57.3MB in the beginning and 51.6MB in the end (delta: 5.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.70ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 47.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.15ms. Allocated memory is still 75.5MB. Free memory was 47.8MB in the beginning and 44.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 983.59ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 44.9MB in the beginning and 61.2MB in the end (delta: -16.3MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * TraceAbstraction took 322575.31ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 60.7MB in the beginning and 50.6MB in the end (delta: 10.1MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1970fef-4329-4ae3-8174-007fd792a949/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken