./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF --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 a23a17038467a4b0973e39785173179a6b9a1bb4d9769749cbca92c19670a850 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:33:29,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:33:29,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:33:29,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:33:29,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:33:29,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:33:29,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:33:29,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:33:29,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:33:29,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:33:29,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:33:29,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:33:29,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:33:29,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:33:29,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:33:29,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:33:29,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:33:29,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:33:29,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:33:29,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:33:29,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:33:29,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:33:29,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:33:29,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:33:29,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:33:29,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:33:29,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:33:29,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:33:29,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:33:29,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:33:29,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:33:29,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:33:29,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:33:29,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:33:29,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:33:29,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:33:29,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:33:29,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:33:29,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:33:29,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:33:29,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:33:29,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:33:29,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:33:29,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:33:29,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:33:29,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:33:29,645 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:33:29,645 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:33:29,646 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:33:29,646 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:33:29,646 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:33:29,646 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:33:29,648 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:33:29,648 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:33:29,648 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:33:29,649 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:33:29,649 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:33:29,649 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:33:29,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:33:29,651 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:33:29,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:33:29,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:33:29,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:33:29,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:33:29,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:33:29,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:33:29,652 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:33:29,652 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:33:29,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:33:29,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:33:29,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:33:29,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:33:29,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:33:29,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:33:29,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:33:29,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:33:29,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:33:29,657 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:33:29,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:33:29,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:33:29,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:33:29,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:33:29,658 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a23a17038467a4b0973e39785173179a6b9a1bb4d9769749cbca92c19670a850 [2021-11-12 23:33:29,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:33:30,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:33:30,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:33:30,028 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:33:30,029 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:33:30,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2021-11-12 23:33:30,115 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data/b8c57a488/ed7aacd8ddac4e79a3f21738394662e8/FLAG25c8e6cf1 [2021-11-12 23:33:30,658 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:33:30,659 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2021-11-12 23:33:30,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data/b8c57a488/ed7aacd8ddac4e79a3f21738394662e8/FLAG25c8e6cf1 [2021-11-12 23:33:30,983 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data/b8c57a488/ed7aacd8ddac4e79a3f21738394662e8 [2021-11-12 23:33:30,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:33:30,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:33:30,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:33:30,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:33:30,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:33:30,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:33:30" (1/1) ... [2021-11-12 23:33:30,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c99c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:30, skipping insertion in model container [2021-11-12 23:33:30,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:33:30" (1/1) ... [2021-11-12 23:33:31,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:33:31,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:33:31,393 WARN L228 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_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-11-12 23:33:31,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:33:31,410 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:33:31,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1dbcbf8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:31, skipping insertion in model container [2021-11-12 23:33:31,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:33:31,411 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:33:31,414 INFO L158 Benchmark]: Toolchain (without parser) took 424.22ms. Allocated memory is still 121.6MB. Free memory was 81.8MB in the beginning and 94.1MB in the end (delta: -12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 23:33:31,414 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 121.6MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:33:31,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.13ms. Allocated memory is still 121.6MB. Free memory was 81.6MB in the beginning and 94.1MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 23:33:31,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 121.6MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.13ms. Allocated memory is still 121.6MB. Free memory was 81.6MB in the beginning and 94.1MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 404]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF --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 a23a17038467a4b0973e39785173179a6b9a1bb4d9769749cbca92c19670a850 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:33:34,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:33:34,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:33:34,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:33:34,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:33:34,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:33:34,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:33:34,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:33:34,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:33:34,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:33:34,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:33:34,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:33:34,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:33:34,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:33:34,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:33:34,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:33:34,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:33:34,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:33:34,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:33:34,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:33:34,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:33:34,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:33:34,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:33:34,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:33:34,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:33:34,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:33:34,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:33:34,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:33:34,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:33:34,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:33:34,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:33:34,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:33:34,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:33:34,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:33:34,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:33:34,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:33:34,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:33:34,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:33:34,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:33:34,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:33:34,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:33:34,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:33:34,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:33:34,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:33:34,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:33:34,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:33:34,295 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:33:34,296 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:33:34,296 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:33:34,296 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:33:34,297 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:33:34,297 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:33:34,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:33:34,300 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:33:34,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:33:34,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:33:34,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:33:34,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:33:34,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:33:34,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:33:34,302 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:33:34,302 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:33:34,303 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:33:34,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:33:34,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:33:34,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:33:34,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:33:34,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:33:34,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:33:34,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:33:34,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:33:34,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:33:34,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:33:34,306 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:33:34,306 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:33:34,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:33:34,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:33:34,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:33:34,308 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a23a17038467a4b0973e39785173179a6b9a1bb4d9769749cbca92c19670a850 [2021-11-12 23:33:34,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:33:34,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:33:34,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:33:34,728 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:33:34,731 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:33:34,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2021-11-12 23:33:34,801 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data/d2bca9258/9dc005fffd074579b23ee560ae3626a3/FLAG63a148ded [2021-11-12 23:33:35,468 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:33:35,474 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2021-11-12 23:33:35,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data/d2bca9258/9dc005fffd074579b23ee560ae3626a3/FLAG63a148ded [2021-11-12 23:33:35,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/data/d2bca9258/9dc005fffd074579b23ee560ae3626a3 [2021-11-12 23:33:35,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:33:35,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:33:35,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:33:35,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:33:35,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:33:35,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:33:35" (1/1) ... [2021-11-12 23:33:35,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793e477d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:35, skipping insertion in model container [2021-11-12 23:33:35,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:33:35" (1/1) ... [2021-11-12 23:33:35,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:33:35,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:33:36,271 WARN L228 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_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-11-12 23:33:36,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:33:36,291 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:33:36,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:33:36,438 WARN L228 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_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-11-12 23:33:36,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:33:36,455 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:33:36,576 WARN L228 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_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-11-12 23:33:36,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:33:36,617 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:33:36,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36 WrapperNode [2021-11-12 23:33:36,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:33:36,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:33:36,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:33:36,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:33:36,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:33:36,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:33:36,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:33:36,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:33:36,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:33:36,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:33:36,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:33:36,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:33:36,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (1/1) ... [2021-11-12 23:33:36,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:33:36,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:33:36,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:33:36,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:33:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:33:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:33:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:33:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-11-12 23:33:37,019 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-11-12 23:33:37,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:33:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:33:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:33:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:33:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:33:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:33:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:33:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-11-12 23:33:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-11-12 23:33:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-11-12 23:33:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:33:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:33:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:33:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-11-12 23:33:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-11-12 23:33:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:33:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:33:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:33:38,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:33:38,320 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-12 23:33:38,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:33:38 BoogieIcfgContainer [2021-11-12 23:33:38,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:33:38,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:33:38,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:33:38,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:33:38,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:33:35" (1/3) ... [2021-11-12 23:33:38,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4b4dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:33:38, skipping insertion in model container [2021-11-12 23:33:38,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:33:36" (2/3) ... [2021-11-12 23:33:38,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4b4dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:33:38, skipping insertion in model container [2021-11-12 23:33:38,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:33:38" (3/3) ... [2021-11-12 23:33:38,334 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_2.c [2021-11-12 23:33:38,341 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:33:38,341 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:33:38,415 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:33:38,429 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:33:38,429 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:33:38,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 88 states have (on average 1.6022727272727273) internal successors, (141), 89 states have internal predecessors, (141), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-12 23:33:38,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 23:33:38,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:38,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:33:38,474 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:33:38,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:38,481 INFO L85 PathProgramCache]: Analyzing trace with hash -17410784, now seen corresponding path program 1 times [2021-11-12 23:33:38,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:38,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359744837] [2021-11-12 23:33:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:38,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:38,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:38,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:38,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:33:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:38,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:33:38,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:33:39,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:33:39,104 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:33:39,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359744837] [2021-11-12 23:33:39,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359744837] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:33:39,105 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:33:39,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:33:39,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582459078] [2021-11-12 23:33:39,108 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:33:39,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:33:39,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:33:39,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:33:39,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:33:39,172 INFO L87 Difference]: Start difference. First operand has 101 states, 88 states have (on average 1.6022727272727273) internal successors, (141), 89 states have internal predecessors, (141), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 23:33:39,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:33:39,250 INFO L93 Difference]: Finished difference Result 197 states and 314 transitions. [2021-11-12 23:33:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:33:39,254 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-12 23:33:39,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:39,271 INFO L225 Difference]: With dead ends: 197 [2021-11-12 23:33:39,272 INFO L226 Difference]: Without dead ends: 95 [2021-11-12 23:33:39,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:33:39,288 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:39,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 7.22ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:33:39,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-12 23:33:39,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-12 23:33:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 84 states have internal predecessors, (126), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 23:33:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 141 transitions. [2021-11-12 23:33:39,377 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 141 transitions. Word has length 23 [2021-11-12 23:33:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:39,379 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 141 transitions. [2021-11-12 23:33:39,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 23:33:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 141 transitions. [2021-11-12 23:33:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-12 23:33:39,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:39,391 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:33:39,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 23:33:39,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:39,604 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:33:39,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1717462757, now seen corresponding path program 1 times [2021-11-12 23:33:39,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:39,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378687225] [2021-11-12 23:33:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:39,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:39,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:39,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:39,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:33:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:39,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:33:39,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:33:40,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:33:40,175 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:33:40,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378687225] [2021-11-12 23:33:40,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378687225] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:33:40,177 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:33:40,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:33:40,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728753301] [2021-11-12 23:33:40,184 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:33:40,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:33:40,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:33:40,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:33:40,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:33:40,193 INFO L87 Difference]: Start difference. First operand 95 states and 141 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:33:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:33:40,365 INFO L93 Difference]: Finished difference Result 254 states and 389 transitions. [2021-11-12 23:33:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:33:40,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2021-11-12 23:33:40,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:40,375 INFO L225 Difference]: With dead ends: 254 [2021-11-12 23:33:40,376 INFO L226 Difference]: Without dead ends: 164 [2021-11-12 23:33:40,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:33:40,381 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 88 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.70ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.17ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:40,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 455 Invalid, 24 Unknown, 0 Unchecked, 12.70ms Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 101.17ms Time] [2021-11-12 23:33:40,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-12 23:33:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 98. [2021-11-12 23:33:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 86 states have (on average 1.5) internal successors, (129), 87 states have internal predecessors, (129), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 23:33:40,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 144 transitions. [2021-11-12 23:33:40,421 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 144 transitions. Word has length 27 [2021-11-12 23:33:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:40,421 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 144 transitions. [2021-11-12 23:33:40,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:33:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 144 transitions. [2021-11-12 23:33:40,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-12 23:33:40,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:40,424 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:33:40,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 23:33:40,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:40,625 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:33:40,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:40,626 INFO L85 PathProgramCache]: Analyzing trace with hash -868666903, now seen corresponding path program 1 times [2021-11-12 23:33:40,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:40,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246352969] [2021-11-12 23:33:40,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:40,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:40,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:40,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:40,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:33:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:40,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:33:40,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:41,094 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:33:41,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:33:41,227 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:33:41,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246352969] [2021-11-12 23:33:41,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246352969] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:33:41,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1022063310] [2021-11-12 23:33:41,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:41,228 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:33:41,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:33:41,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:33:41,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-12 23:33:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:41,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:33:41,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:41,600 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:33:41,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:33:41,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1022063310] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:33:41,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645335592] [2021-11-12 23:33:41,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:41,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:33:41,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:33:41,750 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:33:41,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:33:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:41,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:33:41,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:42,195 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-12 23:33:42,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-12 23:33:42,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645335592] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:33:42,323 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-12 23:33:42,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 6, 6] total 18 [2021-11-12 23:33:42,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112735620] [2021-11-12 23:33:42,324 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:33:42,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:33:42,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:33:42,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:33:42,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:33:42,326 INFO L87 Difference]: Start difference. First operand 98 states and 144 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 23:33:42,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:33:42,347 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2021-11-12 23:33:42,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:33:42,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-12 23:33:42,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:42,351 INFO L225 Difference]: With dead ends: 107 [2021-11-12 23:33:42,351 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:33:42,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:33:42,354 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 16 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:42,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 289 Invalid, 3 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [2 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 11.44ms Time] [2021-11-12 23:33:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:33:42,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:33:42,356 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) [2021-11-12 23:33:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:33:42,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-11-12 23:33:42,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:42,356 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:33:42,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 23:33:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:33:42,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:33:42,360 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:33:42,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:33:42,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:33:42,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:33:42,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:42,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:33:43,023 INFO L858 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2021-11-12 23:33:43,023 INFO L858 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-11-12 23:33:43,023 INFO L858 garLoopResultBuilder]: For program point L217-2(line 217) no Hoare annotation was computed. [2021-11-12 23:33:43,024 INFO L861 garLoopResultBuilder]: At program point L209(lines 209 225) the Hoare annotation is: true [2021-11-12 23:33:43,024 INFO L861 garLoopResultBuilder]: At program point Id_MCDC_89ENTRY(lines 193 248) the Hoare annotation is: true [2021-11-12 23:33:43,024 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_89EXIT(lines 193 248) no Hoare annotation was computed. [2021-11-12 23:33:43,024 INFO L858 garLoopResultBuilder]: For program point L234(line 234) no Hoare annotation was computed. [2021-11-12 23:33:43,024 INFO L858 garLoopResultBuilder]: For program point L234-2(line 234) no Hoare annotation was computed. [2021-11-12 23:33:43,024 INFO L858 garLoopResultBuilder]: For program point L234-3(line 234) no Hoare annotation was computed. [2021-11-12 23:33:43,024 INFO L858 garLoopResultBuilder]: For program point L234-5(lines 234 246) no Hoare annotation was computed. [2021-11-12 23:33:43,025 INFO L858 garLoopResultBuilder]: For program point L226-1(lines 226 233) no Hoare annotation was computed. [2021-11-12 23:33:43,025 INFO L861 garLoopResultBuilder]: At program point L226-3(lines 226 233) the Hoare annotation is: true [2021-11-12 23:33:43,025 INFO L858 garLoopResultBuilder]: For program point L226-4(lines 226 233) no Hoare annotation was computed. [2021-11-12 23:33:43,025 INFO L858 garLoopResultBuilder]: For program point L218(line 218) no Hoare annotation was computed. [2021-11-12 23:33:43,025 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-11-12 23:33:43,025 INFO L858 garLoopResultBuilder]: For program point L214-2(line 214) no Hoare annotation was computed. [2021-11-12 23:33:43,025 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 208) no Hoare annotation was computed. [2021-11-12 23:33:43,026 INFO L858 garLoopResultBuilder]: For program point L202-2(lines 202 208) no Hoare annotation was computed. [2021-11-12 23:33:43,026 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_89FINAL(lines 193 248) no Hoare annotation was computed. [2021-11-12 23:33:43,026 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 201) no Hoare annotation was computed. [2021-11-12 23:33:43,026 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-12 23:33:43,026 INFO L858 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2021-11-12 23:33:43,026 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-12 23:33:43,026 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-12 23:33:43,027 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 241) no Hoare annotation was computed. [2021-11-12 23:33:43,027 INFO L858 garLoopResultBuilder]: For program point L236-1(lines 234 246) no Hoare annotation was computed. [2021-11-12 23:33:43,027 INFO L858 garLoopResultBuilder]: For program point L220(line 220) no Hoare annotation was computed. [2021-11-12 23:33:43,027 INFO L858 garLoopResultBuilder]: For program point L220-2(line 220) no Hoare annotation was computed. [2021-11-12 23:33:43,027 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-12 23:33:43,027 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 207) no Hoare annotation was computed. [2021-11-12 23:33:43,027 INFO L858 garLoopResultBuilder]: For program point L229(lines 229 232) no Hoare annotation was computed. [2021-11-12 23:33:43,028 INFO L858 garLoopResultBuilder]: For program point L461(lines 461 464) no Hoare annotation was computed. [2021-11-12 23:33:43,028 INFO L854 garLoopResultBuilder]: At program point L461-2(lines 459 466) the Hoare annotation is: (= |Id_MCDC_95___VERIFIER_assert_~Id_MCDC_103#1| (_ bv1 32)) [2021-11-12 23:33:43,028 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 295) no Hoare annotation was computed. [2021-11-12 23:33:43,028 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 269) no Hoare annotation was computed. [2021-11-12 23:33:43,028 INFO L858 garLoopResultBuilder]: For program point L288-2(lines 288 295) no Hoare annotation was computed. [2021-11-12 23:33:43,028 INFO L858 garLoopResultBuilder]: For program point L284(lines 284 287) no Hoare annotation was computed. [2021-11-12 23:33:43,028 INFO L861 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: true [2021-11-12 23:33:43,029 INFO L858 garLoopResultBuilder]: For program point L272-1(line 272) no Hoare annotation was computed. [2021-11-12 23:33:43,029 INFO L861 garLoopResultBuilder]: At program point L297(line 297) the Hoare annotation is: true [2021-11-12 23:33:43,029 INFO L858 garLoopResultBuilder]: For program point L297-1(line 297) no Hoare annotation was computed. [2021-11-12 23:33:43,029 INFO L861 garLoopResultBuilder]: At program point Id_MCDC_95ENTRY(lines 280 299) the Hoare annotation is: true [2021-11-12 23:33:43,029 INFO L858 garLoopResultBuilder]: For program point L463(line 463) no Hoare annotation was computed. [2021-11-12 23:33:43,029 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_95EXIT(lines 280 299) no Hoare annotation was computed. [2021-11-12 23:33:43,030 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2021-11-12 23:33:43,030 INFO L858 garLoopResultBuilder]: For program point L261(lines 261 269) no Hoare annotation was computed. [2021-11-12 23:33:43,030 INFO L861 garLoopResultBuilder]: At program point L290(line 290) the Hoare annotation is: true [2021-11-12 23:33:43,030 INFO L858 garLoopResultBuilder]: For program point L290-1(line 290) no Hoare annotation was computed. [2021-11-12 23:33:43,030 INFO L861 garLoopResultBuilder]: At program point L278(lines 249 279) the Hoare annotation is: true [2021-11-12 23:33:43,030 INFO L858 garLoopResultBuilder]: For program point L270-1(lines 250 279) no Hoare annotation was computed. [2021-11-12 23:33:43,030 INFO L858 garLoopResultBuilder]: For program point L270-2(lines 270 277) no Hoare annotation was computed. [2021-11-12 23:33:43,030 INFO L858 garLoopResultBuilder]: For program point Id_MCDC_95FINAL(lines 280 299) no Hoare annotation was computed. [2021-11-12 23:33:43,031 INFO L858 garLoopResultBuilder]: For program point L316(line 316) no Hoare annotation was computed. [2021-11-12 23:33:43,031 INFO L858 garLoopResultBuilder]: For program point L316-2(line 316) no Hoare annotation was computed. [2021-11-12 23:33:43,031 INFO L858 garLoopResultBuilder]: For program point L316-3(line 316) no Hoare annotation was computed. [2021-11-12 23:33:43,031 INFO L858 garLoopResultBuilder]: For program point L316-5(lines 316 328) no Hoare annotation was computed. [2021-11-12 23:33:43,031 INFO L858 garLoopResultBuilder]: For program point L308-1(lines 308 315) no Hoare annotation was computed. [2021-11-12 23:33:43,031 INFO L861 garLoopResultBuilder]: At program point L308-3(lines 308 315) the Hoare annotation is: true [2021-11-12 23:33:43,031 INFO L858 garLoopResultBuilder]: For program point L308-4(lines 308 315) no Hoare annotation was computed. [2021-11-12 23:33:43,032 INFO L858 garLoopResultBuilder]: For program point L358-2(lines 358 396) no Hoare annotation was computed. [2021-11-12 23:33:43,032 INFO L861 garLoopResultBuilder]: At program point L358-3(lines 358 396) the Hoare annotation is: true [2021-11-12 23:33:43,032 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:33:43,032 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 23:33:43,032 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-11-12 23:33:43,032 INFO L858 garLoopResultBuilder]: For program point L408-2(lines 408 415) no Hoare annotation was computed. [2021-11-12 23:33:43,032 INFO L861 garLoopResultBuilder]: At program point L425(lines 420 426) the Hoare annotation is: true [2021-11-12 23:33:43,032 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-11-12 23:33:43,033 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 323) no Hoare annotation was computed. [2021-11-12 23:33:43,033 INFO L858 garLoopResultBuilder]: For program point L318-1(lines 316 328) no Hoare annotation was computed. [2021-11-12 23:33:43,033 INFO L858 garLoopResultBuilder]: For program point L376-2(lines 376 393) no Hoare annotation was computed. [2021-11-12 23:33:43,033 INFO L861 garLoopResultBuilder]: At program point L376-3(lines 376 393) the Hoare annotation is: true [2021-11-12 23:33:43,033 INFO L858 garLoopResultBuilder]: For program point L376-4(lines 376 393) no Hoare annotation was computed. [2021-11-12 23:33:43,044 INFO L861 garLoopResultBuilder]: At program point L418(lines 400 419) the Hoare annotation is: true [2021-11-12 23:33:43,044 INFO L858 garLoopResultBuilder]: For program point L352-2(lines 352 355) no Hoare annotation was computed. [2021-11-12 23:33:43,045 INFO L861 garLoopResultBuilder]: At program point L352-3(lines 352 355) the Hoare annotation is: true [2021-11-12 23:33:43,045 INFO L858 garLoopResultBuilder]: For program point L352-4(lines 332 399) no Hoare annotation was computed. [2021-11-12 23:33:43,045 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 314) no Hoare annotation was computed. [2021-11-12 23:33:43,045 INFO L861 garLoopResultBuilder]: At program point L427(lines 427 458) the Hoare annotation is: true [2021-11-12 23:33:43,045 INFO L861 garLoopResultBuilder]: At program point L361(line 361) the Hoare annotation is: true [2021-11-12 23:33:43,045 INFO L858 garLoopResultBuilder]: For program point L361-1(lines 361 364) no Hoare annotation was computed. [2021-11-12 23:33:43,045 INFO L858 garLoopResultBuilder]: For program point L452(lines 452 455) no Hoare annotation was computed. [2021-11-12 23:33:43,046 INFO L861 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: true [2021-11-12 23:33:43,046 INFO L858 garLoopResultBuilder]: For program point L378-1(lines 378 381) no Hoare annotation was computed. [2021-11-12 23:33:43,046 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 307) no Hoare annotation was computed. [2021-11-12 23:33:43,046 INFO L861 garLoopResultBuilder]: At program point L329(lines 300 330) the Hoare annotation is: true [2021-11-12 23:33:43,046 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 23:33:43,046 INFO L861 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: true [2021-11-12 23:33:43,047 INFO L858 garLoopResultBuilder]: For program point L371-1(lines 371 374) no Hoare annotation was computed. [2021-11-12 23:33:43,047 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:33:43,047 INFO L858 garLoopResultBuilder]: For program point L389(lines 389 392) no Hoare annotation was computed. [2021-11-12 23:33:43,047 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 397) no Hoare annotation was computed. [2021-11-12 23:33:43,047 INFO L858 garLoopResultBuilder]: For program point L406-2(lines 406 416) no Hoare annotation was computed. [2021-11-12 23:33:43,047 INFO L861 garLoopResultBuilder]: At program point L406-3(lines 406 416) the Hoare annotation is: true [2021-11-12 23:33:43,047 INFO L861 garLoopResultBuilder]: At program point L406-4(lines 406 416) the Hoare annotation is: true [2021-11-12 23:33:43,048 INFO L861 garLoopResultBuilder]: At program point L398(lines 331 399) the Hoare annotation is: true [2021-11-12 23:33:43,048 INFO L861 garLoopResultBuilder]: At program point L365(line 365) the Hoare annotation is: true [2021-11-12 23:33:43,048 INFO L858 garLoopResultBuilder]: For program point L365-1(lines 365 368) no Hoare annotation was computed. [2021-11-12 23:33:43,048 INFO L858 garLoopResultBuilder]: For program point avoid_zeroEXIT(lines 9 15) no Hoare annotation was computed. [2021-11-12 23:33:43,048 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2021-11-12 23:33:43,048 INFO L858 garLoopResultBuilder]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2021-11-12 23:33:43,048 INFO L861 garLoopResultBuilder]: At program point avoid_zeroENTRY(lines 9 15) the Hoare annotation is: true [2021-11-12 23:33:43,051 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-12 23:33:43,053 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:33:43,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:33:43 BoogieIcfgContainer [2021-11-12 23:33:43,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:33:43,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:33:43,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:33:43,068 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:33:43,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:33:38" (3/4) ... [2021-11-12 23:33:43,072 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:33:43,079 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2021-11-12 23:33:43,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2021-11-12 23:33:43,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2021-11-12 23:33:43,093 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2021-11-12 23:33:43,095 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-12 23:33:43,096 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-12 23:33:43,098 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-12 23:33:43,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:33:43,101 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:33:43,210 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:33:43,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:33:43,211 INFO L158 Benchmark]: Toolchain (without parser) took 7517.84ms. Allocated memory was 71.3MB in the beginning and 113.2MB in the end (delta: 41.9MB). Free memory was 52.5MB in the beginning and 77.7MB in the end (delta: -25.2MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2021-11-12 23:33:43,212 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:33:43,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 923.79ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 40.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 23:33:43,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.60ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 37.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:33:43,213 INFO L158 Benchmark]: Boogie Preprocessor took 149.03ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 33.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:33:43,213 INFO L158 Benchmark]: RCFGBuilder took 1429.42ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 33.4MB in the beginning and 52.2MB in the end (delta: -18.7MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2021-11-12 23:33:43,214 INFO L158 Benchmark]: TraceAbstraction took 4740.81ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 51.7MB in the beginning and 89.2MB in the end (delta: -37.5MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2021-11-12 23:33:43,214 INFO L158 Benchmark]: Witness Printer took 143.04ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 77.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 23:33:43,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 923.79ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 40.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.60ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 37.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 149.03ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 33.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1429.42ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 33.4MB in the beginning and 52.2MB in the end (delta: -18.7MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4740.81ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 51.7MB in the beginning and 89.2MB in the end (delta: -37.5MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Witness Printer took 143.04ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 77.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. 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: 463]: 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 4 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 112.61ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 892 SdHoareTripleChecker+Invalid, 89.97ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 429 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 463 mSDtfsCounter, 21 mSolverCounterSat, 21.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 66 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 95 PreInvPairs, 127 NumberOfFragments, 27 HoareAnnotationTreeSize, 95 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1213 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 34/48 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: 300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: Id_MCDC_103 == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-11-12 23:33:43,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc87aaa9-65fb-4175-bce2-f6ccc1398ebc/bin/utaipan-vmNK8stdcF/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