./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS --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 92b4501808affebdeca741bfd6f75263ab313d5eceb196bbb78aea107ecea6ed --- 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-8393723 [2022-11-19 08:29:25,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:29:25,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:29:25,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:29:25,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:29:25,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:29:25,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:29:25,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:29:25,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:29:25,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:29:25,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:29:25,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:29:25,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:29:25,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:29:25,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:29:25,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:29:25,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:29:25,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:29:25,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:29:25,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:29:25,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:29:25,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:29:25,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:29:25,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:29:25,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:29:25,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:29:25,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:29:25,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:29:25,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:29:25,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:29:25,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:29:25,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:29:25,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:29:25,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:29:25,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:29:25,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:29:25,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:29:25,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:29:25,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:29:25,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:29:25,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:29:25,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:29:25,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:29:25,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:29:25,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:29:25,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:29:25,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:29:25,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:29:25,835 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:29:25,836 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:29:25,836 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:29:25,836 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:29:25,837 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:29:25,837 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:29:25,837 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:29:25,838 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:29:25,838 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:29:25,838 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:29:25,838 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:29:25,839 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:29:25,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:29:25,840 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:29:25,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:29:25,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:29:25,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:29:25,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:29:25,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:29:25,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:29:25,841 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:29:25,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:29:25,843 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:29:25,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:29:25,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:29:25,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:29:25,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:29:25,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:29:25,845 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:29:25,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:29:25,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:29:25,845 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:29:25,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:29:25,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:29:25,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:29:25,846 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_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92b4501808affebdeca741bfd6f75263ab313d5eceb196bbb78aea107ecea6ed [2022-11-19 08:29:26,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:29:26,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:29:26,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:29:26,125 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:29:26,126 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:29:26,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2022-11-19 08:29:26,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/data/5b09841f1/64df127f188b43c0820c5eb78649dfed/FLAG0d186c4d8 [2022-11-19 08:29:26,741 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:29:26,743 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2022-11-19 08:29:26,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/data/5b09841f1/64df127f188b43c0820c5eb78649dfed/FLAG0d186c4d8 [2022-11-19 08:29:27,105 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/data/5b09841f1/64df127f188b43c0820c5eb78649dfed [2022-11-19 08:29:27,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:29:27,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:29:27,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:29:27,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:29:27,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:29:27,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fe88d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27, skipping insertion in model container [2022-11-19 08:29:27,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:29:27,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:29:27,372 WARN L234 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_e0674f5f-3a22-4158-b385-ee3ed436af8b/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c[1250,1263] [2022-11-19 08:29:27,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:29:27,391 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:29:27,408 WARN L234 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_e0674f5f-3a22-4158-b385-ee3ed436af8b/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c[1250,1263] [2022-11-19 08:29:27,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:29:27,424 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:29:27,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27 WrapperNode [2022-11-19 08:29:27,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:29:27,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:29:27,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:29:27,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:29:27,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,466 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-11-19 08:29:27,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:29:27,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:29:27,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:29:27,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:29:27,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,485 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:29:27,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:29:27,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:29:27,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:29:27,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (1/1) ... [2022-11-19 08:29:27,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:29:27,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:29:27,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:29:27,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:29:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:29:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:29:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:29:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:29:27,631 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:29:27,633 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:29:27,875 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:29:27,944 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:29:27,944 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:29:27,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:29:27 BoogieIcfgContainer [2022-11-19 08:29:27,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:29:27,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:29:27,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:29:27,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:29:27,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:29:27" (1/3) ... [2022-11-19 08:29:27,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594a2ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:29:27, skipping insertion in model container [2022-11-19 08:29:27,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:27" (2/3) ... [2022-11-19 08:29:27,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594a2ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:29:27, skipping insertion in model container [2022-11-19 08:29:27,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:29:27" (3/3) ... [2022-11-19 08:29:27,956 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2022-11-19 08:29:27,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:29:27,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:29:28,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:29:28,041 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;@e911418, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:29:28,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:29:28,059 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) [2022-11-19 08:29:28,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 08:29:28,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:29:28,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 08:29:28,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:29:28,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:29:28,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2065765632, now seen corresponding path program 1 times [2022-11-19 08:29:28,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:29:28,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889497447] [2022-11-19 08:29:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:28,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:29:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:28,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:29:28,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:29:28,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889497447] [2022-11-19 08:29:28,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889497447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:29:28,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:29:28,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:29:28,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775089352] [2022-11-19 08:29:28,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:29:28,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:29:28,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:29:28,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:29:28,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:29:28,526 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 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-19 08:29:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:29:28,590 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2022-11-19 08:29:28,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:29:28,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-19 08:29:28,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:29:28,602 INFO L225 Difference]: With dead ends: 19 [2022-11-19 08:29:28,602 INFO L226 Difference]: Without dead ends: 9 [2022-11-19 08:29:28,607 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 [2022-11-19 08:29:28,612 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:29:28,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:29:28,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-19 08:29:28,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-19 08:29:28,653 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) [2022-11-19 08:29:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 08:29:28,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2022-11-19 08:29:28,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:29:28,656 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 08:29:28,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-19 08:29:28,657 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 08:29:28,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:29:28,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:29:28,658 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:29:28,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:29:28,659 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:29:28,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:29:28,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1562005972, now seen corresponding path program 1 times [2022-11-19 08:29:28,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:29:28,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985109285] [2022-11-19 08:29:28,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:28,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:29:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:29:29,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:29:29,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985109285] [2022-11-19 08:29:29,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985109285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:29:29,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:29:29,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:29:29,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796858363] [2022-11-19 08:29:29,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:29:29,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:29:29,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:29:29,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:29:29,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:29:29,539 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2022-11-19 08:29:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:29:29,601 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2022-11-19 08:29:29,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:29:29,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 8 [2022-11-19 08:29:29,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:29:29,603 INFO L225 Difference]: With dead ends: 9 [2022-11-19 08:29:29,603 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:29:29,609 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 [2022-11-19 08:29:29,611 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4 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 [2022-11-19 08:29:29,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:29:29,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:29:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:29:29,615 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) [2022-11-19 08:29:29,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:29:29,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-19 08:29:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:29:29,622 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:29:29,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2022-11-19 08:29:29,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:29:29,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:29:29,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:29:29,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:29:29,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:29:29,665 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:29:29,665 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 76) no Hoare annotation was computed. [2022-11-19 08:29:29,665 INFO L902 garLoopResultBuilder]: At program point L75(lines 9 78) the Hoare annotation is: true [2022-11-19 08:29:29,665 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-11-19 08:29:29,665 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 08:29:29,666 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 70) no Hoare annotation was computed. [2022-11-19 08:29:29,666 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 63) no Hoare annotation was computed. [2022-11-19 08:29:29,666 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 77) no Hoare annotation was computed. [2022-11-19 08:29:29,666 INFO L895 garLoopResultBuilder]: At program point L47(lines 10 78) the Hoare annotation is: (or (= |ULTIMATE.start_main_~main__y~0#1| 1) (let ((.cse1 (div |ULTIMATE.start_main_~main__x~0#1| 4294967296))) (let ((.cse0 (div (+ (* .cse1 (- 4294967296)) |ULTIMATE.start_main_~main__x~0#1|) 3))) (<= (+ |ULTIMATE.start_main_~main__x~0#1| (* (div (+ (* (- 3) .cse0) |ULTIMATE.start_main_~main__x~0#1|) 4294967296) 2)) (+ (* 3 .cse0) (* .cse1 4294967298)))))) [2022-11-19 08:29:29,671 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 08:29:29,677 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:29:29,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:29:29 BoogieIcfgContainer [2022-11-19 08:29:29,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:29:29,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:29:29,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:29:29,707 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:29:29,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:29:27" (3/4) ... [2022-11-19 08:29:29,710 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:29:29,722 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-19 08:29:29,722 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 08:29:29,722 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 08:29:29,723 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:29:29,769 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:29:29,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:29:29,770 INFO L158 Benchmark]: Toolchain (without parser) took 2657.18ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 88.8MB in the beginning and 72.5MB in the end (delta: 16.3MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2022-11-19 08:29:29,770 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:29:29,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.76ms. Allocated memory is still 127.9MB. Free memory was 88.6MB in the beginning and 101.9MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:29:29,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.08ms. Allocated memory is still 127.9MB. Free memory was 101.9MB in the beginning and 100.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:29:29,772 INFO L158 Benchmark]: Boogie Preprocessor took 19.29ms. Allocated memory is still 127.9MB. Free memory was 100.3MB in the beginning and 99.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:29:29,772 INFO L158 Benchmark]: RCFGBuilder took 458.93ms. Allocated memory is still 127.9MB. Free memory was 99.3MB in the beginning and 85.6MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:29:29,772 INFO L158 Benchmark]: TraceAbstraction took 1755.74ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 85.1MB in the beginning and 74.5MB in the end (delta: 10.6MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-11-19 08:29:29,773 INFO L158 Benchmark]: Witness Printer took 63.13ms. Allocated memory is still 155.2MB. Free memory was 74.5MB in the beginning and 72.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:29:29,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.76ms. Allocated memory is still 127.9MB. Free memory was 88.6MB in the beginning and 101.9MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.08ms. Allocated memory is still 127.9MB. Free memory was 101.9MB in the beginning and 100.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.29ms. Allocated memory is still 127.9MB. Free memory was 100.3MB in the beginning and 99.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.93ms. Allocated memory is still 127.9MB. Free memory was 99.3MB in the beginning and 85.6MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1755.74ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 85.1MB in the beginning and 74.5MB in the end (delta: 10.6MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Witness Printer took 63.13ms. Allocated memory is still 155.2MB. Free memory was 74.5MB in the beginning and 72.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 63]: 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: 1.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 8 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 42 HoareAnnotationTreeSize, 2 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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: 10]: Loop Invariant Derived loop invariant: main__y == 1 || main__x + (-3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + main__x) / 4294967296 * 2 <= 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + main__x / 4294967296 * 4294967298 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 08:29:29,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0674f5f-3a22-4158-b385-ee3ed436af8b/bin/utaipan-I9t0OCRTmS/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