./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label34.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label34.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9 --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 32bit --witnessprinter.graph.data.programhash 550f3a62df7d5eada5d2aa8dd32299382207e40f85198cb35440276faa9cf7d3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 21:17:05,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:17:05,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:17:05,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:17:05,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:17:05,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:17:05,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:17:05,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:17:05,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:17:05,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:17:05,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:17:05,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:17:05,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:17:05,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:17:05,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:17:06,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:17:06,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:17:06,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:17:06,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:17:06,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:17:06,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:17:06,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:17:06,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:17:06,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:17:06,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:17:06,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:17:06,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:17:06,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:17:06,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:17:06,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:17:06,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:17:06,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:17:06,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:17:06,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:17:06,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:17:06,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:17:06,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:17:06,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:17:06,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:17:06,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:17:06,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:17:06,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 21:17:06,050 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:17:06,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:17:06,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:17:06,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:17:06,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:17:06,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:17:06,052 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:17:06,053 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:17:06,053 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:17:06,053 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:17:06,053 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:17:06,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:17:06,054 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:17:06,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:17:06,054 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:17:06,054 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:17:06,055 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:17:06,055 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:17:06,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:17:06,056 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:17:06,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:17:06,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:17:06,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:17:06,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:17:06,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:17:06,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:17:06,057 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:17:06,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:17:06,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:17:06,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:17:06,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:17:06,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:17:06,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:17:06,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:17:06,059 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:17:06,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:17:06,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:17:06,060 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:17:06,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:17:06,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:17:06,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:17:06,060 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_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 550f3a62df7d5eada5d2aa8dd32299382207e40f85198cb35440276faa9cf7d3 [2022-11-20 21:17:06,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:17:06,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:17:06,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:17:06,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:17:06,318 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:17:06,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/eca-rers2012/Problem10_label34.c [2022-11-20 21:17:09,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:17:09,665 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:17:09,666 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/sv-benchmarks/c/eca-rers2012/Problem10_label34.c [2022-11-20 21:17:09,689 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/data/a07d60da5/5070d85c5905411b87b4c9f08e170619/FLAG892e2118e [2022-11-20 21:17:09,711 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/data/a07d60da5/5070d85c5905411b87b4c9f08e170619 [2022-11-20 21:17:09,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:17:09,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:17:09,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:17:09,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:17:09,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:17:09,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:17:09" (1/1) ... [2022-11-20 21:17:09,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dedf26b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:09, skipping insertion in model container [2022-11-20 21:17:09,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:17:09" (1/1) ... [2022-11-20 21:17:09,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:17:09,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:17:10,065 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/sv-benchmarks/c/eca-rers2012/Problem10_label34.c[7166,7179] [2022-11-20 21:17:10,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:17:10,199 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:17:10,228 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/sv-benchmarks/c/eca-rers2012/Problem10_label34.c[7166,7179] [2022-11-20 21:17:10,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:17:10,300 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:17:10,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10 WrapperNode [2022-11-20 21:17:10,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:17:10,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:17:10,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:17:10,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:17:10,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,378 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2022-11-20 21:17:10,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:17:10,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:17:10,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:17:10,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:17:10,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,441 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:17:10,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:17:10,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:17:10,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:17:10,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (1/1) ... [2022-11-20 21:17:10,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:17:10,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:17:10,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:17:10,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:17:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:17:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:17:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:17:10,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:17:10,664 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:17:10,666 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:17:11,910 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:17:14,694 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:17:14,694 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 21:17:14,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:17:14 BoogieIcfgContainer [2022-11-20 21:17:14,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:17:14,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:17:14,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:17:14,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:17:14,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:17:09" (1/3) ... [2022-11-20 21:17:14,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ea4f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:17:14, skipping insertion in model container [2022-11-20 21:17:14,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:17:10" (2/3) ... [2022-11-20 21:17:14,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ea4f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:17:14, skipping insertion in model container [2022-11-20 21:17:14,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:17:14" (3/3) ... [2022-11-20 21:17:14,710 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label34.c [2022-11-20 21:17:14,731 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:17:14,731 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:17:14,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:17:14,797 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;@61d0c132, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:17:14,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 21:17:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:17:14,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 21:17:14,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:17:14,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 21:17:14,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:17:14,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:17:14,819 INFO L85 PathProgramCache]: Analyzing trace with hash 885191341, now seen corresponding path program 1 times [2022-11-20 21:17:14,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:17:14,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178227126] [2022-11-20 21:17:14,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:17:14,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:17:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:17:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:17:15,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:17:15,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178227126] [2022-11-20 21:17:15,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178227126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:17:15,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:17:15,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:17:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947708777] [2022-11-20 21:17:15,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:17:15,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:17:15,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:17:15,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:17:15,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:17:15,283 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2022-11-20 21:17:15,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:17:15,392 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2022-11-20 21:17:15,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:17:15,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 [2022-11-20 21:17:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:17:15,404 INFO L225 Difference]: With dead ends: 23 [2022-11-20 21:17:15,404 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 21:17:15,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:17:15,410 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:17:15,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:17:15,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 21:17:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2022-11-20 21:17:15,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:17:15,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-11-20 21:17:15,444 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2022-11-20 21:17:15,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:17:15,445 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-11-20 21:17:15,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2022-11-20 21:17:15,446 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-11-20 21:17:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 21:17:15,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:17:15,447 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-20 21:17:15,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:17:15,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:17:15,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:17:15,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1862050785, now seen corresponding path program 1 times [2022-11-20 21:17:15,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:17:15,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130455372] [2022-11-20 21:17:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:17:15,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:17:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:17:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:17:28,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:17:28,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130455372] [2022-11-20 21:17:28,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130455372] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:17:28,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758111847] [2022-11-20 21:17:28,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:17:28,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:17:28,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:17:28,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:17:28,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 21:17:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:17:29,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 21:17:29,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:17:43,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:17:43,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:18:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 21:18:00,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758111847] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 21:18:00,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 21:18:00,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 9 [2022-11-20 21:18:00,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696483118] [2022-11-20 21:18:00,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:18:00,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:18:00,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:18:00,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:18:00,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-11-20 21:18:00,385 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2022-11-20 21:18:00,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:18:00,430 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-11-20 21:18:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:18:00,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) Word has length 9 [2022-11-20 21:18:00,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:18:00,433 INFO L225 Difference]: With dead ends: 10 [2022-11-20 21:18:00,434 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 21:18:00,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-11-20 21:18:00,437 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:18:00,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:18:00,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 21:18:00,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 21:18:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 21:18:00,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 21:18:00,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-11-20 21:18:00,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:18:00,449 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 21:18:00,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2022-11-20 21:18:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 21:18:00,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 21:18:00,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 21:18:00,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 21:18:00,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:18:00,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 21:18:00,689 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2022-11-20 21:18:00,690 INFO L895 garLoopResultBuilder]: At program point L202-1(lines 30 584) the Hoare annotation is: (or (not (< 218 ~a1~0)) (not (= 7 ~a19~0))) [2022-11-20 21:18:00,690 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-11-20 21:18:00,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 21:18:00,691 INFO L902 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2022-11-20 21:18:00,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 21:18:00,691 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (< 218 ~a1~0)) (not (= 7 ~a19~0)) (and (= ~a10~0 1) (= 14 ~a4~0) (= ~a12~0 0))) [2022-11-20 21:18:00,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 203) no Hoare annotation was computed. [2022-11-20 21:18:00,692 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2022-11-20 21:18:00,695 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 21:18:00,697 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:18:00,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:18:00 BoogieIcfgContainer [2022-11-20 21:18:00,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:18:00,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:18:00,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:18:00,713 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:18:00,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:17:14" (3/4) ... [2022-11-20 21:18:00,717 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 21:18:00,734 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 184 nodes and edges [2022-11-20 21:18:00,736 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-20 21:18:00,737 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 21:18:00,738 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:18:00,847 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:18:00,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:18:00,848 INFO L158 Benchmark]: Toolchain (without parser) took 51132.99ms. Allocated memory was 155.2MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 121.1MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 395.5MB. Max. memory is 16.1GB. [2022-11-20 21:18:00,848 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:18:00,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.90ms. Allocated memory is still 155.2MB. Free memory was 120.6MB in the beginning and 93.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 21:18:00,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.02ms. Allocated memory is still 155.2MB. Free memory was 93.4MB in the beginning and 85.6MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 21:18:00,849 INFO L158 Benchmark]: Boogie Preprocessor took 67.29ms. Allocated memory is still 155.2MB. Free memory was 85.6MB in the beginning and 80.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 21:18:00,849 INFO L158 Benchmark]: RCFGBuilder took 4242.31ms. Allocated memory was 155.2MB in the beginning and 241.2MB in the end (delta: 86.0MB). Free memory was 80.8MB in the beginning and 72.1MB in the end (delta: 8.7MB). Peak memory consumption was 118.8MB. Max. memory is 16.1GB. [2022-11-20 21:18:00,850 INFO L158 Benchmark]: TraceAbstraction took 46011.36ms. Allocated memory was 241.2MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 72.1MB in the beginning and 1.9GB in the end (delta: -1.9GB). Peak memory consumption was 247.3MB. Max. memory is 16.1GB. [2022-11-20 21:18:00,850 INFO L158 Benchmark]: Witness Printer took 134.73ms. Allocated memory is still 2.4GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 21:18:00,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.90ms. Allocated memory is still 155.2MB. Free memory was 120.6MB in the beginning and 93.4MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.02ms. Allocated memory is still 155.2MB. Free memory was 93.4MB in the beginning and 85.6MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.29ms. Allocated memory is still 155.2MB. Free memory was 85.6MB in the beginning and 80.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4242.31ms. Allocated memory was 155.2MB in the beginning and 241.2MB in the end (delta: 86.0MB). Free memory was 80.8MB in the beginning and 72.1MB in the end (delta: 8.7MB). Peak memory consumption was 118.8MB. Max. memory is 16.1GB. * TraceAbstraction took 46011.36ms. Allocated memory was 241.2MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 72.1MB in the beginning and 1.9GB in the end (delta: -1.9GB). Peak memory consumption was 247.3MB. Max. memory is 16.1GB. * Witness Printer took 134.73ms. Allocated memory is still 2.4GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 203]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 29 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 44.9s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 521 SizeOfPredicates, 6 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (!(218 < a1) || !(7 == a19)) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: !(218 < a1) || !(7 == a19) RESULT: Ultimate proved your program to be correct! [2022-11-20 21:18:00,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968b3515-1d6a-4f03-b7fc-dba75ef82366/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE