./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan --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 5defd2208c93a2ab255ba6ec6639b51820669e1a ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan --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 5defd2208c93a2ab255ba6ec6639b51820669e1a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 07:49:00,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:49:00,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:49:00,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:49:00,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:49:00,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:49:00,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:49:00,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:49:00,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:49:00,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:49:00,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:49:00,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:49:00,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:49:00,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:49:00,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:49:00,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:49:00,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:49:00,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:49:00,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:49:00,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:49:00,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:49:00,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:49:00,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:49:00,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:49:00,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:49:00,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:49:00,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:49:00,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:49:00,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:49:00,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:49:00,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:49:00,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:49:00,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:49:00,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:49:00,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:49:00,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:49:00,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:49:00,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:49:00,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:49:00,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:49:00,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:49:00,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 07:49:00,824 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:49:00,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:49:00,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:49:00,825 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:49:00,825 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:49:00,825 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:49:00,826 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 07:49:00,826 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:49:00,826 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:49:00,826 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 07:49:00,826 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 07:49:00,826 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:49:00,826 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 07:49:00,827 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 07:49:00,827 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 07:49:00,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:49:00,828 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:49:00,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 07:49:00,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:49:00,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:49:00,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:49:00,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:49:00,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:49:00,829 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:49:00,829 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:49:00,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:49:00,829 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:49:00,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:49:00,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:49:00,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:49:00,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:49:00,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:49:00,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:49:00,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:49:00,831 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 07:49:00,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 07:49:00,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:49:00,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:49:00,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:49:00,832 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-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5defd2208c93a2ab255ba6ec6639b51820669e1a [2020-12-09 07:49:01,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:49:01,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:49:01,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:49:01,034 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:49:01,035 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:49:01,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2020-12-09 07:49:01,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data/eb3700e57/aab5a661db2348058c7f343a699d33e5/FLAG06f6ccbad [2020-12-09 07:49:01,463 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:49:01,463 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2020-12-09 07:49:01,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data/eb3700e57/aab5a661db2348058c7f343a699d33e5/FLAG06f6ccbad [2020-12-09 07:49:01,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data/eb3700e57/aab5a661db2348058c7f343a699d33e5 [2020-12-09 07:49:01,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:49:01,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:49:01,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:49:01,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:49:01,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:49:01,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:49:01" (1/1) ... [2020-12-09 07:49:01,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6833eae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:01, skipping insertion in model container [2020-12-09 07:49:01,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:49:01" (1/1) ... [2020-12-09 07:49:01,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:49:01,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:49:01,727 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2020-12-09 07:49:01,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:49:01,740 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) [2020-12-09 07:49:01,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@669540ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:01, skipping insertion in model container [2020-12-09 07:49:01,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:49:01,741 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 07:49:01,743 INFO L168 Benchmark]: Toolchain (without parser) took 258.51 ms. Allocated memory is still 92.3 MB. Free memory was 50.9 MB in the beginning and 62.6 MB in the end (delta: -11.7 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:49:01,743 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 92.3 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:49:01,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.67 ms. Allocated memory is still 92.3 MB. Free memory was 50.8 MB in the beginning and 62.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:49:01,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 92.3 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 256.67 ms. Allocated memory is still 92.3 MB. Free memory was 50.8 MB in the beginning and 62.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * 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... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 07:49:03,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:49:03,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:49:03,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:49:03,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:49:03,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:49:03,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:49:03,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:49:03,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:49:03,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:49:03,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:49:03,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:49:03,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:49:03,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:49:03,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:49:03,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:49:03,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:49:03,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:49:03,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:49:03,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:49:03,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:49:03,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:49:03,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:49:03,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:49:03,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:49:03,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:49:03,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:49:03,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:49:03,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:49:03,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:49:03,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:49:03,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:49:03,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:49:03,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:49:03,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:49:03,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:49:03,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:49:03,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:49:03,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:49:03,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:49:03,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:49:03,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 07:49:03,220 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:49:03,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:49:03,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:49:03,221 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:49:03,221 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:49:03,221 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:49:03,221 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:49:03,221 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:49:03,222 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:49:03,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:49:03,222 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:49:03,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:49:03,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:49:03,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:49:03,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:49:03,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:49:03,223 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:49:03,223 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 07:49:03,223 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 07:49:03,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:49:03,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:49:03,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:49:03,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:49:03,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:49:03,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 07:49:03,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:49:03,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:49:03,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:49:03,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:49:03,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:49:03,225 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 07:49:03,225 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 07:49:03,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:49:03,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:49:03,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:49:03,226 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-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5defd2208c93a2ab255ba6ec6639b51820669e1a [2020-12-09 07:49:03,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:49:03,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:49:03,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:49:03,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:49:03,475 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:49:03,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/../../sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2020-12-09 07:49:03,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data/6b38a6752/315937eeda51400594f659aed32c1adb/FLAG10c883787 [2020-12-09 07:49:03,930 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:49:03,930 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c [2020-12-09 07:49:03,938 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data/6b38a6752/315937eeda51400594f659aed32c1adb/FLAG10c883787 [2020-12-09 07:49:03,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/data/6b38a6752/315937eeda51400594f659aed32c1adb [2020-12-09 07:49:03,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:49:03,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:49:03,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:49:03,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:49:03,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:49:03,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:49:03" (1/1) ... [2020-12-09 07:49:03,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc698a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:03, skipping insertion in model container [2020-12-09 07:49:03,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:49:03" (1/1) ... [2020-12-09 07:49:03,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:49:03,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:49:04,206 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2020-12-09 07:49:04,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:49:04,223 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 07:49:04,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:49:04,287 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2020-12-09 07:49:04,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:49:04,294 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:49:04,354 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/sv-benchmarks/c/loop-industry-pattern/ofuf_4.c[11358,11371] [2020-12-09 07:49:04,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:49:04,380 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:49:04,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04 WrapperNode [2020-12-09 07:49:04,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:49:04,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:49:04,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:49:04,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:49:04,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... [2020-12-09 07:49:04,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... [2020-12-09 07:49:04,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:49:04,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:49:04,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:49:04,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:49:04,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... [2020-12-09 07:49:04,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... [2020-12-09 07:49:04,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... [2020-12-09 07:49:04,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... [2020-12-09 07:49:04,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... [2020-12-09 07:49:04,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... [2020-12-09 07:49:04,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... [2020-12-09 07:49:04,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:49:04,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:49:04,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:49:04,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:49:04,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:49:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-09 07:49:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-12-09 07:49:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2020-12-09 07:49:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 07:49:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-12-09 07:49:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 07:49:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:49:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 07:49:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2020-12-09 07:49:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-09 07:49:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-12-09 07:49:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2020-12-09 07:49:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2020-12-09 07:49:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 07:49:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:49:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:49:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-12-09 07:49:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:49:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 07:49:05,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:49:05,592 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2020-12-09 07:49:05,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:49:05 BoogieIcfgContainer [2020-12-09 07:49:05,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:49:05,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:49:05,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:49:05,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:49:05,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:49:03" (1/3) ... [2020-12-09 07:49:05,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4941c1cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:49:05, skipping insertion in model container [2020-12-09 07:49:05,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:49:04" (2/3) ... [2020-12-09 07:49:05,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4941c1cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:49:05, skipping insertion in model container [2020-12-09 07:49:05,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:49:05" (3/3) ... [2020-12-09 07:49:05,599 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_4.c [2020-12-09 07:49:05,609 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:49:05,611 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:49:05,619 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:49:05,636 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:49:05,637 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:49:05,637 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:49:05,637 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:49:05,637 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:49:05,637 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:49:05,637 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:49:05,637 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:49:05,651 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-12-09 07:49:05,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 07:49:05,657 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:49:05,658 INFO L422 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] [2020-12-09 07:49:05,658 INFO L429 AbstractCegarLoop]: === Iteration 1 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:49:05,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:49:05,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1619751197, now seen corresponding path program 1 times [2020-12-09 07:49:05,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:49:05,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931614354] [2020-12-09 07:49:05,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 07:49:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:49:05,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 07:49:05,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:49:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:49:05,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:49:05,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931614354] [2020-12-09 07:49:05,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:49:05,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:49:05,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045800073] [2020-12-09 07:49:05,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 07:49:05,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:49:05,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 07:49:05,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:49:05,951 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 2 states. [2020-12-09 07:49:05,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:49:05,982 INFO L93 Difference]: Finished difference Result 351 states and 572 transitions. [2020-12-09 07:49:05,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 07:49:05,983 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2020-12-09 07:49:05,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:49:05,991 INFO L225 Difference]: With dead ends: 351 [2020-12-09 07:49:05,991 INFO L226 Difference]: Without dead ends: 174 [2020-12-09 07:49:05,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:49:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-12-09 07:49:06,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-12-09 07:49:06,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-09 07:49:06,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 271 transitions. [2020-12-09 07:49:06,035 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 271 transitions. Word has length 22 [2020-12-09 07:49:06,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:49:06,035 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 271 transitions. [2020-12-09 07:49:06,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 07:49:06,035 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 271 transitions. [2020-12-09 07:49:06,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 07:49:06,037 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:49:06,037 INFO L422 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] [2020-12-09 07:49:06,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 07:49:06,239 INFO L429 AbstractCegarLoop]: === Iteration 2 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:49:06,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:49:06,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1421069872, now seen corresponding path program 1 times [2020-12-09 07:49:06,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:49:06,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362990564] [2020-12-09 07:49:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 07:49:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:49:06,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 07:49:06,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:49:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:49:06,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:49:06,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362990564] [2020-12-09 07:49:06,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:49:06,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 07:49:06,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545098471] [2020-12-09 07:49:06,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 07:49:06,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:49:06,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 07:49:06,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:49:06,564 INFO L87 Difference]: Start difference. First operand 174 states and 271 transitions. Second operand 3 states. [2020-12-09 07:49:06,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:49:06,644 INFO L93 Difference]: Finished difference Result 490 states and 773 transitions. [2020-12-09 07:49:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 07:49:06,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-09 07:49:06,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:49:06,650 INFO L225 Difference]: With dead ends: 490 [2020-12-09 07:49:06,650 INFO L226 Difference]: Without dead ends: 321 [2020-12-09 07:49:06,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:49:06,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-12-09 07:49:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 175. [2020-12-09 07:49:06,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-09 07:49:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 272 transitions. [2020-12-09 07:49:06,672 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 272 transitions. Word has length 22 [2020-12-09 07:49:06,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:49:06,672 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 272 transitions. [2020-12-09 07:49:06,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 07:49:06,673 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 272 transitions. [2020-12-09 07:49:06,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 07:49:06,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:49:06,674 INFO L422 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, 1] [2020-12-09 07:49:06,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 07:49:06,876 INFO L429 AbstractCegarLoop]: === Iteration 3 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:49:06,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:49:06,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1781509458, now seen corresponding path program 1 times [2020-12-09 07:49:06,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:49:06,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067186703] [2020-12-09 07:49:06,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 07:49:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:49:07,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 07:49:07,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:49:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:49:07,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 07:49:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:49:07,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067186703] [2020-12-09 07:49:07,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [371921916] [2020-12-09 07:49:07,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt [2020-12-09 07:49:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:49:07,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 07:49:07,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:49:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 07:49:07,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:49:07,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 07:49:07,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2020-12-09 07:49:07,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475870245] [2020-12-09 07:49:07,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 07:49:07,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:49:07,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 07:49:07,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-09 07:49:07,444 INFO L87 Difference]: Start difference. First operand 175 states and 272 transitions. Second operand 4 states. [2020-12-09 07:49:07,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:49:07,490 INFO L93 Difference]: Finished difference Result 216 states and 322 transitions. [2020-12-09 07:49:07,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 07:49:07,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-12-09 07:49:07,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:49:07,493 INFO L225 Difference]: With dead ends: 216 [2020-12-09 07:49:07,493 INFO L226 Difference]: Without dead ends: 195 [2020-12-09 07:49:07,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-09 07:49:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-12-09 07:49:07,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2020-12-09 07:49:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-12-09 07:49:07,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 295 transitions. [2020-12-09 07:49:07,508 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 295 transitions. Word has length 24 [2020-12-09 07:49:07,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:49:07,509 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 295 transitions. [2020-12-09 07:49:07,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 07:49:07,509 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 295 transitions. [2020-12-09 07:49:07,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 07:49:07,512 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:49:07,512 INFO L422 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, 1] [2020-12-09 07:49:07,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt [2020-12-09 07:49:07,914 INFO L429 AbstractCegarLoop]: === Iteration 4 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:49:07,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:49:07,915 INFO L82 PathProgramCache]: Analyzing trace with hash -625923128, now seen corresponding path program 1 times [2020-12-09 07:49:07,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:49:07,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66797192] [2020-12-09 07:49:07,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 07:49:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:49:08,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 07:49:08,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:49:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 07:49:08,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 07:49:08,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 07:49:08,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66797192] [2020-12-09 07:49:08,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [902638667] [2020-12-09 07:49:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt [2020-12-09 07:49:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:49:08,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 07:49:08,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:49:08,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 07:49:08,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 07:49:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 07:49:08,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192738661] [2020-12-09 07:49:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 07:49:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:49:08,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 07:49:08,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:49:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-09 07:49:08,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:49:08,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 07:49:08,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 6, 6] total 16 [2020-12-09 07:49:08,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050131628] [2020-12-09 07:49:08,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 07:49:08,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:49:08,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 07:49:08,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-12-09 07:49:08,586 INFO L87 Difference]: Start difference. First operand 193 states and 295 transitions. Second operand 4 states. [2020-12-09 07:49:08,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:49:08,678 INFO L93 Difference]: Finished difference Result 226 states and 339 transitions. [2020-12-09 07:49:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 07:49:08,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-12-09 07:49:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:49:08,683 INFO L225 Difference]: With dead ends: 226 [2020-12-09 07:49:08,683 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 07:49:08,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-12-09 07:49:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 07:49:08,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 07:49:08,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 07:49:08,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 07:49:08,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-12-09 07:49:08,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:49:08,686 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 07:49:08,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 07:49:08,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 07:49:08,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 07:49:09,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt,6 mathsat -unsat_core_generation=3,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 07:49:09,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 07:49:09,406 INFO L262 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,406 INFO L262 CegarLoopResult]: For program point L234-2(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-3(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-5(lines 234 246) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-6(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-8(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-9(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-11(lines 234 246) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-12(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-14(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-15(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,407 INFO L262 CegarLoopResult]: For program point L234-17(lines 234 246) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L234-18(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L234-20(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L234-21(line 234) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L234-23(lines 234 246) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L202(lines 202 208) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L202-2(lines 202 208) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L202-3(lines 202 208) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L202-5(lines 202 208) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L202-6(lines 202 208) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L202-8(lines 202 208) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L202-9(lines 202 208) no Hoare annotation was computed. [2020-12-09 07:49:09,408 INFO L262 CegarLoopResult]: For program point L202-11(lines 202 208) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L236(lines 236 241) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L236-1(lines 234 246) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L236-2(lines 236 241) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L236-3(lines 234 246) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L236-4(lines 236 241) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L236-5(lines 234 246) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L236-6(lines 236 241) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L236-7(lines 234 246) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L204(lines 204 207) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L204-1(lines 204 207) no Hoare annotation was computed. [2020-12-09 07:49:09,409 INFO L262 CegarLoopResult]: For program point L204-2(lines 204 207) no Hoare annotation was computed. [2020-12-09 07:49:09,410 INFO L262 CegarLoopResult]: For program point L204-3(lines 204 207) no Hoare annotation was computed. [2020-12-09 07:49:09,410 INFO L262 CegarLoopResult]: For program point L304(lines 304 307) no Hoare annotation was computed. [2020-12-09 07:49:09,410 INFO L262 CegarLoopResult]: For program point L371(lines 371 374) no Hoare annotation was computed. [2020-12-09 07:49:09,410 INFO L262 CegarLoopResult]: For program point L406-2(lines 406 416) no Hoare annotation was computed. [2020-12-09 07:49:09,410 INFO L265 CegarLoopResult]: At program point L406-3(lines 406 416) the Hoare annotation is: true [2020-12-09 07:49:09,410 INFO L265 CegarLoopResult]: At program point L406-4(lines 406 416) the Hoare annotation is: true [2020-12-09 07:49:09,410 INFO L262 CegarLoopResult]: For program point L308-1(lines 308 315) no Hoare annotation was computed. [2020-12-09 07:49:09,410 INFO L265 CegarLoopResult]: At program point L209(lines 209 225) the Hoare annotation is: true [2020-12-09 07:49:09,410 INFO L265 CegarLoopResult]: At program point L308-3(lines 308 315) the Hoare annotation is: true [2020-12-09 07:49:09,410 INFO L265 CegarLoopResult]: At program point L209-1(lines 209 225) the Hoare annotation is: true [2020-12-09 07:49:09,410 INFO L262 CegarLoopResult]: For program point L308-4(lines 308 315) no Hoare annotation was computed. [2020-12-09 07:49:09,411 INFO L265 CegarLoopResult]: At program point L209-2(lines 209 225) the Hoare annotation is: true [2020-12-09 07:49:09,411 INFO L265 CegarLoopResult]: At program point L209-3(lines 209 225) the Hoare annotation is: true [2020-12-09 07:49:09,411 INFO L262 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-12-09 07:49:09,411 INFO L262 CegarLoopResult]: For program point L408-2(lines 408 415) no Hoare annotation was computed. [2020-12-09 07:49:09,411 INFO L262 CegarLoopResult]: For program point L376-2(lines 376 393) no Hoare annotation was computed. [2020-12-09 07:49:09,411 INFO L265 CegarLoopResult]: At program point L376-3(lines 376 393) the Hoare annotation is: true [2020-12-09 07:49:09,411 INFO L262 CegarLoopResult]: For program point L376-4(lines 376 393) no Hoare annotation was computed. [2020-12-09 07:49:09,411 INFO L262 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-09 07:49:09,411 INFO L262 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2020-12-09 07:49:09,411 INFO L262 CegarLoopResult]: For program point L211-3(line 211) no Hoare annotation was computed. [2020-12-09 07:49:09,411 INFO L262 CegarLoopResult]: For program point L211-5(line 211) no Hoare annotation was computed. [2020-12-09 07:49:09,411 INFO L262 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L211-9(line 211) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L211-11(line 211) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L311(lines 311 314) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L212-2(line 212) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L212-4(line 212) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L212-6(line 212) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L378(lines 378 381) no Hoare annotation was computed. [2020-12-09 07:49:09,412 INFO L265 CegarLoopResult]: At program point L247(lines 193 248) the Hoare annotation is: true [2020-12-09 07:49:09,412 INFO L262 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L265 CegarLoopResult]: At program point L247-1(lines 193 248) the Hoare annotation is: true [2020-12-09 07:49:09,413 INFO L265 CegarLoopResult]: At program point L247-2(lines 193 248) the Hoare annotation is: true [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L214-2(line 214) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L265 CegarLoopResult]: At program point L247-3(lines 193 248) the Hoare annotation is: true [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L214-3(line 214) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L214-5(line 214) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L214-6(line 214) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L214-8(line 214) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L214-9(line 214) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L214-11(line 214) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L215-2(line 215) no Hoare annotation was computed. [2020-12-09 07:49:09,413 INFO L262 CegarLoopResult]: For program point L215-4(line 215) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L215-6(line 215) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L316(line 316) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L316-2(line 316) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L217(line 217) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L316-3(line 316) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L217-2(line 217) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L316-5(lines 316 328) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L217-3(line 217) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L217-5(line 217) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L217-6(line 217) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L217-8(line 217) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L217-9(line 217) no Hoare annotation was computed. [2020-12-09 07:49:09,414 INFO L262 CegarLoopResult]: For program point L217-11(line 217) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L218-2(line 218) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L218-4(line 218) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L218-6(line 218) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L318(lines 318 323) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L318-1(lines 316 328) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L265 CegarLoopResult]: At program point L418(lines 427 458) the Hoare annotation is: true [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L352-2(lines 352 355) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L265 CegarLoopResult]: At program point L352-3(lines 352 355) the Hoare annotation is: true [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L352-4(lines 332 399) no Hoare annotation was computed. [2020-12-09 07:49:09,415 INFO L262 CegarLoopResult]: For program point L220(line 220) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L220-2(line 220) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L220-3(line 220) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L220-5(line 220) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L220-6(line 220) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L220-8(line 220) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L220-9(line 220) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L220-11(line 220) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L452(lines 452 455) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L221-2(line 221) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L221-4(line 221) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L221-6(line 221) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 07:49:09,416 INFO L262 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point L223-2(line 223) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point L223-4(line 223) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point L223-6(line 223) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point L389(lines 389 392) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point L356(lines 356 397) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point L358-2(lines 358 396) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L265 CegarLoopResult]: At program point L358-3(lines 358 396) the Hoare annotation is: true [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point L226-1(lines 226 233) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L265 CegarLoopResult]: At program point L226-3(lines 226 233) the Hoare annotation is: true [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point L226-4(lines 226 233) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L262 CegarLoopResult]: For program point L226-6(lines 226 233) no Hoare annotation was computed. [2020-12-09 07:49:09,417 INFO L265 CegarLoopResult]: At program point L226-8(lines 226 233) the Hoare annotation is: true [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L226-9(lines 226 233) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L226-11(lines 226 233) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L265 CegarLoopResult]: At program point L226-13(lines 226 233) the Hoare annotation is: true [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L226-14(lines 226 233) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L226-16(lines 226 233) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L265 CegarLoopResult]: At program point L226-18(lines 226 233) the Hoare annotation is: true [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L226-19(lines 226 233) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L361(lines 361 364) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L229(lines 229 232) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L229-1(lines 229 232) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L229-2(lines 229 232) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L262 CegarLoopResult]: For program point L229-3(lines 229 232) no Hoare annotation was computed. [2020-12-09 07:49:09,418 INFO L265 CegarLoopResult]: At program point L329(lines 300 330) the Hoare annotation is: true [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L198(lines 198 201) no Hoare annotation was computed. [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L198-1(lines 198 201) no Hoare annotation was computed. [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L198-2(lines 198 201) no Hoare annotation was computed. [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L198-3(lines 198 201) no Hoare annotation was computed. [2020-12-09 07:49:09,419 INFO L265 CegarLoopResult]: At program point L398(lines 331 399) the Hoare annotation is: true [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L365(lines 365 368) no Hoare annotation was computed. [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L461(lines 461 464) no Hoare annotation was computed. [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2020-12-09 07:49:09,419 INFO L258 CegarLoopResult]: At program point L461-2(lines 459 466) the Hoare annotation is: (and (= (_ bv1 32) Id_MCDC_95___VERIFIER_assert_~Id_MCDC_103) |Id_MCDC_95_#t~short30|) [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2020-12-09 07:49:09,419 INFO L262 CegarLoopResult]: For program point L288(lines 288 295) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point L255(lines 255 269) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point L288-2(lines 288 295) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point L284(lines 284 287) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L265 CegarLoopResult]: At program point Id_MCDC_95ENTRY(lines 280 299) the Hoare annotation is: true [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point Id_MCDC_95EXIT(lines 280 299) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point L298(line 298) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point L298-2(line 298) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L262 CegarLoopResult]: For program point L261(lines 261 269) no Hoare annotation was computed. [2020-12-09 07:49:09,420 INFO L258 CegarLoopResult]: At program point L290(line 290) the Hoare annotation is: (or (not (= (_ bv4 32) |Id_MCDC_95_#in~Id_MCDC_93|)) (= (_ bv4 32) Id_MCDC_95_~Id_MCDC_93)) [2020-12-09 07:49:09,421 INFO L262 CegarLoopResult]: For program point L290-1(line 290) no Hoare annotation was computed. [2020-12-09 07:49:09,421 INFO L258 CegarLoopResult]: At program point L278(lines 249 279) the Hoare annotation is: (or (not (= (_ bv4 32) |Id_MCDC_95_#in~Id_MCDC_93|)) (= (_ bv4 32) Id_MCDC_95_~Id_MCDC_93)) [2020-12-09 07:49:09,421 INFO L262 CegarLoopResult]: For program point L270-1(lines 250 279) no Hoare annotation was computed. [2020-12-09 07:49:09,421 INFO L262 CegarLoopResult]: For program point L270-2(lines 270 277) no Hoare annotation was computed. [2020-12-09 07:49:09,421 INFO L262 CegarLoopResult]: For program point Id_MCDC_95FINAL(lines 280 299) no Hoare annotation was computed. [2020-12-09 07:49:09,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:49:09 BoogieIcfgContainer [2020-12-09 07:49:09,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:49:09,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:49:09,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:49:09,433 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:49:09,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:49:05" (3/4) ... [2020-12-09 07:49:09,435 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 07:49:09,440 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2020-12-09 07:49:09,451 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2020-12-09 07:49:09,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2020-12-09 07:49:09,454 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-09 07:49:09,455 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-09 07:49:09,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:49:09,458 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:49:09,479 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(4bv32 == \old(Id_MCDC_93)) || 4bv32 == Id_MCDC_93 [2020-12-09 07:49:09,542 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_39b250ba-8b9f-4d27-9229-ae6e3e2a0c82/bin/utaipan/witness.graphml [2020-12-09 07:49:09,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:49:09,543 INFO L168 Benchmark]: Toolchain (without parser) took 5592.19 ms. Allocated memory was 52.4 MB in the beginning and 134.2 MB in the end (delta: 81.8 MB). Free memory was 31.3 MB in the beginning and 68.3 MB in the end (delta: -37.0 MB). Peak memory consumption was 44.9 MB. Max. memory is 16.1 GB. [2020-12-09 07:49:09,543 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 34.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:49:09,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.80 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 31.0 MB in the beginning and 61.8 MB in the end (delta: -30.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:49:09,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.62 ms. Allocated memory is still 92.3 MB. Free memory was 61.8 MB in the beginning and 57.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:49:09,544 INFO L168 Benchmark]: Boogie Preprocessor took 75.36 ms. Allocated memory is still 92.3 MB. Free memory was 57.4 MB in the beginning and 52.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:49:09,544 INFO L168 Benchmark]: RCFGBuilder took 1063.78 ms. Allocated memory is still 92.3 MB. Free memory was 52.2 MB in the beginning and 47.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-09 07:49:09,545 INFO L168 Benchmark]: TraceAbstraction took 3837.55 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 46.8 MB in the beginning and 86.3 MB in the end (delta: -39.5 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:49:09,545 INFO L168 Benchmark]: Witness Printer took 109.43 ms. Allocated memory is still 134.2 MB. Free memory was 86.3 MB in the beginning and 68.3 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 07:49:09,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 34.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 429.80 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 31.0 MB in the beginning and 61.8 MB in the end (delta: -30.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.62 ms. Allocated memory is still 92.3 MB. Free memory was 61.8 MB in the beginning and 57.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.36 ms. Allocated memory is still 92.3 MB. Free memory was 57.4 MB in the beginning and 52.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1063.78 ms. Allocated memory is still 92.3 MB. Free memory was 52.2 MB in the beginning and 47.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3837.55 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 46.8 MB in the beginning and 86.3 MB in the end (delta: -39.5 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. * Witness Printer took 109.43 ms. Allocated memory is still 134.2 MB. Free memory was 86.3 MB in the beginning and 68.3 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 463]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: !(4bv32 == \old(Id_MCDC_93)) || 4bv32 == Id_MCDC_93 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: 1bv32 == Id_MCDC_103 && aux-( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) >= 0 && ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) <= 4294967295-aux - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 178 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1258 SDtfs, 285 SDslu, 1327 SDs, 0 SdLazy, 27 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 148 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 49 PreInvPairs, 78 NumberOfFragments, 43 HoareAnnotationTreeSize, 49 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 8405 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1657 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 13/23 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...