./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/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_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 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-e04fb08 [2022-11-16 19:48:25,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:48:25,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:48:25,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:48:25,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:48:25,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:48:25,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:48:25,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:48:25,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:48:25,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:48:25,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:48:25,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:48:25,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:48:25,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:48:25,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:48:25,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:48:25,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:48:25,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:48:25,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:48:25,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:48:25,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:48:25,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:48:25,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:48:25,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:48:25,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:48:25,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:48:25,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:48:25,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:48:25,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:48:25,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:48:25,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:48:25,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:48:25,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:48:25,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:48:25,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:48:25,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:48:25,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:48:25,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:48:25,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:48:25,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:48:25,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:48:25,381 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 19:48:25,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:48:25,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:48:25,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:48:25,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:48:25,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:48:25,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:48:25,424 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:48:25,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:48:25,424 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:48:25,424 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:48:25,425 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:48:25,425 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:48:25,426 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:48:25,426 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:48:25,426 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:48:25,426 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:48:25,426 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:48:25,427 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:48:25,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:48:25,427 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:48:25,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:48:25,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:48:25,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:48:25,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:48:25,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:48:25,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:48:25,429 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:48:25,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:48:25,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:48:25,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:48:25,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:48:25,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:48:25,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:48:25,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:48:25,430 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:48:25,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:48:25,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:48:25,431 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:48:25,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:48:25,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:48:25,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:48:25,431 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_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92b4501808affebdeca741bfd6f75263ab313d5eceb196bbb78aea107ecea6ed [2022-11-16 19:48:25,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:48:25,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:48:25,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:48:25,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:48:25,734 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:48:25,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2022-11-16 19:48:25,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/data/35bd73ed2/0d95c7513f5c473aa0a4d73abfd94942/FLAG1c2d1aa1d [2022-11-16 19:48:26,218 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:48:26,218 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2022-11-16 19:48:26,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/data/35bd73ed2/0d95c7513f5c473aa0a4d73abfd94942/FLAG1c2d1aa1d [2022-11-16 19:48:26,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/data/35bd73ed2/0d95c7513f5c473aa0a4d73abfd94942 [2022-11-16 19:48:26,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:48:26,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:48:26,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:48:26,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:48:26,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:48:26,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:26,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b8d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26, skipping insertion in model container [2022-11-16 19:48:26,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:26,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:48:26,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:48:26,927 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c[1250,1263] [2022-11-16 19:48:26,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:48:26,943 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:48:26,978 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c[1250,1263] [2022-11-16 19:48:26,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:48:26,999 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:48:27,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26 WrapperNode [2022-11-16 19:48:27,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:48:27,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:48:27,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:48:27,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:48:27,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,040 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-11-16 19:48:27,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:48:27,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:48:27,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:48:27,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:48:27,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,077 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:48:27,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:48:27,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:48:27,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:48:27,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (1/1) ... [2022-11-16 19:48:27,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:48:27,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:48:27,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:48:27,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:48:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:48:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:48:27,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:48:27,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:48:27,213 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:48:27,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:48:27,335 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:48:27,397 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:48:27,397 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 19:48:27,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:48:27 BoogieIcfgContainer [2022-11-16 19:48:27,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:48:27,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:48:27,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:48:27,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:48:27,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:48:26" (1/3) ... [2022-11-16 19:48:27,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a0a126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:48:27, skipping insertion in model container [2022-11-16 19:48:27,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:26" (2/3) ... [2022-11-16 19:48:27,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a0a126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:48:27, skipping insertion in model container [2022-11-16 19:48:27,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:48:27" (3/3) ... [2022-11-16 19:48:27,412 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2022-11-16 19:48:27,432 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:48:27,432 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:48:27,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:48:27,489 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;@5012f14f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:48:27,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:48:27,493 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) [2022-11-16 19:48:27,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 19:48:27,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:48:27,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 19:48:27,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:48:27,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:48:27,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2065765632, now seen corresponding path program 1 times [2022-11-16 19:48:27,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:48:27,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430041425] [2022-11-16 19:48:27,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:48:27,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:48:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:48:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:48:27,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:48:27,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430041425] [2022-11-16 19:48:27,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430041425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:48:27,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:48:27,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:48:27,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762767960] [2022-11-16 19:48:27,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:48:27,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:48:27,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:48:27,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:48:27,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:48:27,803 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) [2022-11-16 19:48:27,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:48:27,878 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2022-11-16 19:48:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:48:27,881 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 [2022-11-16 19:48:27,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:48:27,889 INFO L225 Difference]: With dead ends: 19 [2022-11-16 19:48:27,902 INFO L226 Difference]: Without dead ends: 9 [2022-11-16 19:48:27,905 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 [2022-11-16 19:48:27,909 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:48:27,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:48:27,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-16 19:48:27,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-16 19:48:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:48:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 19:48:27,962 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2022-11-16 19:48:27,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:48:27,963 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 19:48:27,963 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) [2022-11-16 19:48:27,963 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 19:48:27,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 19:48:27,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:48:27,964 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 19:48:27,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:48:27,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:48:27,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:48:27,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1562005972, now seen corresponding path program 1 times [2022-11-16 19:48:27,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:48:27,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233024095] [2022-11-16 19:48:27,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:48:27,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:48:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:48:28,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:48:28,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:48:28,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233024095] [2022-11-16 19:48:28,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233024095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:48:28,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:48:28,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:48:28,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398227532] [2022-11-16 19:48:28,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:48:28,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:48:28,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:48:28,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:48:28,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:48:28,920 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) [2022-11-16 19:48:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:48:28,980 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2022-11-16 19:48:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:48:28,980 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 [2022-11-16 19:48:28,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:48:28,981 INFO L225 Difference]: With dead ends: 9 [2022-11-16 19:48:28,981 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 19:48:28,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:48:28,989 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 [2022-11-16 19:48:28,990 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] [2022-11-16 19:48:28,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 19:48:28,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 19:48:28,994 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) [2022-11-16 19:48:28,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 19:48:28,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-16 19:48:28,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:48:28,998 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 19:48:28,998 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) [2022-11-16 19:48:28,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 19:48:28,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 19:48:29,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 19:48:29,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:48:29,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 19:48:29,044 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 19:48:29,044 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 76) no Hoare annotation was computed. [2022-11-16 19:48:29,045 INFO L902 garLoopResultBuilder]: At program point L75(lines 9 78) the Hoare annotation is: true [2022-11-16 19:48:29,045 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-11-16 19:48:29,045 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 19:48:29,045 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 70) no Hoare annotation was computed. [2022-11-16 19:48:29,046 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 63) no Hoare annotation was computed. [2022-11-16 19:48:29,046 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 77) no Hoare annotation was computed. [2022-11-16 19:48:29,046 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)))))) [2022-11-16 19:48:29,049 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 19:48:29,051 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:48:29,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:48:29 BoogieIcfgContainer [2022-11-16 19:48:29,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:48:29,074 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:48:29,074 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:48:29,074 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:48:29,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:48:27" (3/4) ... [2022-11-16 19:48:29,078 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 19:48:29,088 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 19:48:29,088 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 19:48:29,089 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 19:48:29,089 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 19:48:29,139 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 19:48:29,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:48:29,140 INFO L158 Benchmark]: Toolchain (without parser) took 2506.44ms. Allocated memory is still 140.5MB. Free memory was 104.3MB in the beginning and 66.1MB in the end (delta: 38.1MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2022-11-16 19:48:29,140 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory was 113.7MB in the beginning and 113.6MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:48:29,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.46ms. Allocated memory is still 140.5MB. Free memory was 104.3MB in the beginning and 114.7MB in the end (delta: -10.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-16 19:48:29,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.49ms. Allocated memory is still 140.5MB. Free memory was 114.7MB in the beginning and 112.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:48:29,142 INFO L158 Benchmark]: Boogie Preprocessor took 37.67ms. Allocated memory is still 140.5MB. Free memory was 112.7MB in the beginning and 111.9MB in the end (delta: 763.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:48:29,142 INFO L158 Benchmark]: RCFGBuilder took 319.78ms. Allocated memory is still 140.5MB. Free memory was 111.9MB in the beginning and 98.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 19:48:29,142 INFO L158 Benchmark]: TraceAbstraction took 1670.03ms. Allocated memory is still 140.5MB. Free memory was 97.2MB in the beginning and 68.2MB in the end (delta: 29.0MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-11-16 19:48:29,143 INFO L158 Benchmark]: Witness Printer took 65.53ms. Allocated memory is still 140.5MB. Free memory was 68.2MB in the beginning and 66.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:48:29,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory was 113.7MB in the beginning and 113.6MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.46ms. Allocated memory is still 140.5MB. Free memory was 104.3MB in the beginning and 114.7MB in the end (delta: -10.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.49ms. Allocated memory is still 140.5MB. Free memory was 114.7MB in the beginning and 112.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.67ms. Allocated memory is still 140.5MB. Free memory was 112.7MB in the beginning and 111.9MB in the end (delta: 763.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.78ms. Allocated memory is still 140.5MB. Free memory was 111.9MB in the beginning and 98.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1670.03ms. Allocated memory is still 140.5MB. Free memory was 97.2MB in the beginning and 68.2MB in the end (delta: 29.0MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Witness Printer took 65.53ms. Allocated memory is still 140.5MB. Free memory was 68.2MB in the beginning and 66.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 1.6s, 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, 0.1s 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, 0.2s SatisfiabilityAnalysisTime, 0.9s 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! [2022-11-16 19:48:29,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4604cbae-8712-4353-a63d-1838b202d68c/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE