./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8 --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 a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:05:15,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:05:15,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:05:15,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:05:15,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:05:15,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:05:15,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:05:15,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:05:15,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:05:15,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:05:15,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:05:15,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:05:15,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:05:15,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:05:15,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:05:15,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:05:15,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:05:15,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:05:15,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:05:15,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:05:15,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:05:15,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:05:15,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:05:15,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:05:15,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:05:15,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:05:15,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:05:15,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:05:15,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:05:15,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:05:15,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:05:15,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:05:15,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:05:15,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:05:15,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:05:15,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:05:15,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:05:15,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:05:15,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:05:15,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:05:15,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:05:15,141 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:05:15,178 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:05:15,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:05:15,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:05:15,180 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:05:15,180 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:05:15,180 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:05:15,181 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:05:15,181 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:05:15,181 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:05:15,182 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:05:15,182 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:05:15,182 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:05:15,183 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:05:15,183 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:05:15,183 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:05:15,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:05:15,185 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:05:15,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:05:15,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:05:15,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:05:15,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:05:15,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:05:15,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:05:15,187 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:05:15,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:05:15,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:05:15,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:05:15,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:05:15,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:05:15,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:05:15,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:05:15,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:05:15,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:05:15,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:05:15,190 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:05:15,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:05:15,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:05:15,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:05:15,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:05:15,192 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 [2021-11-07 01:05:15,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:05:15,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:05:15,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:05:15,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:05:15,614 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:05:15,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-07 01:05:15,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data/53ac16a04/4ee09f266cf14df0b5f2e9c9a7925452/FLAG991faa4c5 [2021-11-07 01:05:16,528 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:05:16,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-07 01:05:16,566 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data/53ac16a04/4ee09f266cf14df0b5f2e9c9a7925452/FLAG991faa4c5 [2021-11-07 01:05:16,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data/53ac16a04/4ee09f266cf14df0b5f2e9c9a7925452 [2021-11-07 01:05:16,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:05:16,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:05:16,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:05:16,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:05:16,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:05:16,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:16" (1/1) ... [2021-11-07 01:05:16,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187468e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:16, skipping insertion in model container [2021-11-07 01:05:16,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:16" (1/1) ... [2021-11-07 01:05:16,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:05:16,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:05:17,587 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-07 01:05:17,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:05:17,743 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:05:17,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47cdef56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:17, skipping insertion in model container [2021-11-07 01:05:17,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:05:17,745 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:05:17,748 INFO L168 Benchmark]: Toolchain (without parser) took 1016.81 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 44.8 MB in the beginning and 89.4 MB in the end (delta: -44.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:05:17,749 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 83.9 MB. Free memory was 63.7 MB in the beginning and 63.6 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:05:17,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1010.91 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 44.6 MB in the beginning and 89.4 MB in the end (delta: -44.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:05:17,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 83.9 MB. Free memory was 63.7 MB in the beginning and 63.6 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1010.91 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 44.6 MB in the beginning and 89.4 MB in the end (delta: -44.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 751]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8 --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 a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:05:20,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:05:20,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:05:20,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:05:20,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:05:20,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:05:20,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:05:20,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:05:20,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:05:20,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:05:20,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:05:20,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:05:20,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:05:20,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:05:20,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:05:20,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:05:20,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:05:20,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:05:20,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:05:20,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:05:20,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:05:20,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:05:20,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:05:20,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:05:20,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:05:20,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:05:20,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:05:20,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:05:20,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:05:20,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:05:20,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:05:20,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:05:20,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:05:20,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:05:20,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:05:20,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:05:20,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:05:20,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:05:20,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:05:20,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:05:20,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:05:20,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:05:20,876 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:05:20,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:05:20,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:05:20,877 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:05:20,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:05:20,878 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:05:20,878 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:05:20,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:05:20,878 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:05:20,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:05:20,883 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:05:20,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:05:20,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:05:20,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:05:20,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:05:20,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:05:20,885 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:05:20,885 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:05:20,886 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:05:20,886 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:05:20,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:05:20,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:05:20,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:05:20,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:05:20,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:05:20,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:05:20,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:05:20,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:05:20,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:05:20,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:05:20,889 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:05:20,890 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:05:20,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:05:20,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:05:20,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:05:20,891 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 [2021-11-07 01:05:21,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:05:21,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:05:21,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:05:21,414 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:05:21,415 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:05:21,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-07 01:05:21,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data/ab602428c/65b4ad885cb24940b894b917f61bce9f/FLAG68c0bddc5 [2021-11-07 01:05:22,351 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:05:22,352 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-07 01:05:22,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data/ab602428c/65b4ad885cb24940b894b917f61bce9f/FLAG68c0bddc5 [2021-11-07 01:05:22,503 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/data/ab602428c/65b4ad885cb24940b894b917f61bce9f [2021-11-07 01:05:22,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:05:22,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:05:22,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:05:22,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:05:22,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:05:22,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:22" (1/1) ... [2021-11-07 01:05:22,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f9a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:22, skipping insertion in model container [2021-11-07 01:05:22,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:22" (1/1) ... [2021-11-07 01:05:22,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:05:22,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:05:23,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-07 01:05:23,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:05:23,430 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:05:23,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:05:23,504 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-07 01:05:23,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:05:23,611 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:05:23,645 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-07 01:05:23,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:05:23,819 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:05:23,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23 WrapperNode [2021-11-07 01:05:23,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:05:23,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:05:23,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:05:23,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:05:23,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:23,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:23,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:05:23,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:05:23,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:05:23,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:05:24,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:24,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:24,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:24,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:24,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:24,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:24,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:24,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:05:24,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:05:24,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:05:24,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:05:24,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (1/1) ... [2021-11-07 01:05:24,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:05:24,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:05:24,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:05:24,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:05:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:05:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:05:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:05:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:05:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:05:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:05:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:05:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:05:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:05:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:05:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:05:30,989 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:05:30,989 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-07 01:05:30,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:05:30 BoogieIcfgContainer [2021-11-07 01:05:30,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:05:30,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:05:30,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:05:31,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:05:31,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:05:22" (1/3) ... [2021-11-07 01:05:31,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694ee825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:05:31, skipping insertion in model container [2021-11-07 01:05:31,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:23" (2/3) ... [2021-11-07 01:05:31,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694ee825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:05:31, skipping insertion in model container [2021-11-07 01:05:31,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:05:30" (3/3) ... [2021-11-07 01:05:31,010 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-1.i [2021-11-07 01:05:31,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:05:31,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-07 01:05:31,087 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:05:31,095 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:05:31,095 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-07 01:05:31,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 127 states have (on average 1.7401574803149606) internal successors, (221), 137 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:31,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:05:31,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:31,130 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:31,130 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:05:31,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1407226647, now seen corresponding path program 1 times [2021-11-07 01:05:31,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:31,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455594252] [2021-11-07 01:05:31,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:31,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:31,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:31,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:31,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:05:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:31,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:05:31,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:05:31,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:05:31,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:31,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455594252] [2021-11-07 01:05:31,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455594252] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:31,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:31,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:05:31,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316652319] [2021-11-07 01:05:31,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:05:31,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:31,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:05:31,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:05:31,544 INFO L87 Difference]: Start difference. First operand has 138 states, 127 states have (on average 1.7401574803149606) internal successors, (221), 137 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:31,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:31,601 INFO L93 Difference]: Finished difference Result 274 states and 440 transitions. [2021-11-07 01:05:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:05:31,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:05:31,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:31,616 INFO L225 Difference]: With dead ends: 274 [2021-11-07 01:05:31,638 INFO L226 Difference]: Without dead ends: 134 [2021-11-07 01:05:31,642 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:05:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-07 01:05:31,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-07 01:05:31,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 124 states have (on average 1.3870967741935485) internal successors, (172), 133 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2021-11-07 01:05:31,745 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 8 [2021-11-07 01:05:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:31,746 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2021-11-07 01:05:31,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:31,749 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2021-11-07 01:05:31,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:05:31,750 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:31,751 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:31,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:31,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:31,967 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:05:31,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:31,968 INFO L85 PathProgramCache]: Analyzing trace with hash 569968710, now seen corresponding path program 1 times [2021-11-07 01:05:31,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:31,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468878530] [2021-11-07 01:05:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:31,970 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:31,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:31,972 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:31,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:05:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:32,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:05:32,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:05:32,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:05:32,230 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:32,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468878530] [2021-11-07 01:05:32,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468878530] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:32,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:32,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:05:32,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39353654] [2021-11-07 01:05:32,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:05:32,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:32,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:05:32,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:05:32,241 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:32,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:32,609 INFO L93 Difference]: Finished difference Result 267 states and 344 transitions. [2021-11-07 01:05:32,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:05:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:05:32,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:32,613 INFO L225 Difference]: With dead ends: 267 [2021-11-07 01:05:32,613 INFO L226 Difference]: Without dead ends: 222 [2021-11-07 01:05:32,615 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:05:32,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-07 01:05:32,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-11-07 01:05:32,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 221 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 287 transitions. [2021-11-07 01:05:32,642 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 287 transitions. Word has length 8 [2021-11-07 01:05:32,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:32,643 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 287 transitions. [2021-11-07 01:05:32,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 287 transitions. [2021-11-07 01:05:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 01:05:32,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:32,650 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:32,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:32,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:32,869 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:05:32,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:32,870 INFO L85 PathProgramCache]: Analyzing trace with hash 2050695974, now seen corresponding path program 1 times [2021-11-07 01:05:32,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:32,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563036477] [2021-11-07 01:05:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:32,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:32,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:32,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:32,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:05:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:33,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:05:33,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-07 01:05:33,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-07 01:05:34,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:34,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563036477] [2021-11-07 01:05:34,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563036477] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:34,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:34,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:05:34,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110809402] [2021-11-07 01:05:34,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:05:34,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:34,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:05:34,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:05:34,325 INFO L87 Difference]: Start difference. First operand 222 states and 287 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:34,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:34,493 INFO L93 Difference]: Finished difference Result 444 states and 580 transitions. [2021-11-07 01:05:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:05:34,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-07 01:05:34,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:34,497 INFO L225 Difference]: With dead ends: 444 [2021-11-07 01:05:34,497 INFO L226 Difference]: Without dead ends: 230 [2021-11-07 01:05:34,499 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:05:34,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-07 01:05:34,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2021-11-07 01:05:34,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 218 states have (on average 1.2706422018348624) internal successors, (277), 227 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:34,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2021-11-07 01:05:34,524 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 110 [2021-11-07 01:05:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:34,525 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2021-11-07 01:05:34,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:34,525 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2021-11-07 01:05:34,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 01:05:34,530 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:34,530 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:34,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:34,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:34,747 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:05:34,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:34,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1601617830, now seen corresponding path program 1 times [2021-11-07 01:05:34,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:34,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225906327] [2021-11-07 01:05:34,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:34,751 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:34,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:34,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:34,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:05:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:35,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:05:35,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 01:05:35,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:36,770 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 01:05:36,770 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:36,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225906327] [2021-11-07 01:05:36,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225906327] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:36,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:36,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 9 [2021-11-07 01:05:36,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376829525] [2021-11-07 01:05:36,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:05:36,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:36,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:05:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:05:36,774 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:36,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:36,902 INFO L93 Difference]: Finished difference Result 413 states and 507 transitions. [2021-11-07 01:05:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:05:36,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-07 01:05:36,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:36,906 INFO L225 Difference]: With dead ends: 413 [2021-11-07 01:05:36,907 INFO L226 Difference]: Without dead ends: 216 [2021-11-07 01:05:36,913 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:05:36,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-07 01:05:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-07 01:05:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 206 states have (on average 1.2475728155339805) internal successors, (257), 215 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:36,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 257 transitions. [2021-11-07 01:05:36,957 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 257 transitions. Word has length 110 [2021-11-07 01:05:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:36,960 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 257 transitions. [2021-11-07 01:05:36,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:36,961 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 257 transitions. [2021-11-07 01:05:36,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 01:05:36,973 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:36,973 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:36,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:37,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:37,174 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:05:37,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:37,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1357916902, now seen corresponding path program 1 times [2021-11-07 01:05:37,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:37,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694902444] [2021-11-07 01:05:37,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:37,178 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:37,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:37,180 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:37,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:05:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:37,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:05:37,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 01:05:38,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 01:05:39,238 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:39,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694902444] [2021-11-07 01:05:39,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694902444] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:39,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:39,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:05:39,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986962087] [2021-11-07 01:05:39,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:05:39,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:39,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:05:39,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:05:39,241 INFO L87 Difference]: Start difference. First operand 216 states and 257 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:39,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:39,724 INFO L93 Difference]: Finished difference Result 383 states and 462 transitions. [2021-11-07 01:05:39,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:05:39,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-07 01:05:39,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:39,727 INFO L225 Difference]: With dead ends: 383 [2021-11-07 01:05:39,727 INFO L226 Difference]: Without dead ends: 214 [2021-11-07 01:05:39,728 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:05:39,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-07 01:05:39,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-07 01:05:39,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 204 states have (on average 1.2450980392156863) internal successors, (254), 213 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 254 transitions. [2021-11-07 01:05:39,758 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 254 transitions. Word has length 110 [2021-11-07 01:05:39,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:39,759 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 254 transitions. [2021-11-07 01:05:39,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 254 transitions. [2021-11-07 01:05:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 01:05:39,762 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:39,763 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:39,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:39,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:39,986 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:05:39,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:39,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1177328342, now seen corresponding path program 1 times [2021-11-07 01:05:39,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:39,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167709162] [2021-11-07 01:05:39,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:39,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:39,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:39,989 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:39,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:05:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:40,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:05:40,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:05:41,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 01:05:41,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:41,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167709162] [2021-11-07 01:05:41,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167709162] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:41,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:41,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:05:41,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883463338] [2021-11-07 01:05:41,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:05:41,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:41,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:05:41,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:05:41,437 INFO L87 Difference]: Start difference. First operand 214 states and 254 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:41,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:41,509 INFO L93 Difference]: Finished difference Result 393 states and 478 transitions. [2021-11-07 01:05:41,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:05:41,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-07 01:05:41,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:41,512 INFO L225 Difference]: With dead ends: 393 [2021-11-07 01:05:41,513 INFO L226 Difference]: Without dead ends: 220 [2021-11-07 01:05:41,513 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:05:41,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-07 01:05:41,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-11-07 01:05:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 210 states have (on average 1.2380952380952381) internal successors, (260), 219 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 260 transitions. [2021-11-07 01:05:41,527 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 260 transitions. Word has length 117 [2021-11-07 01:05:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:41,527 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 260 transitions. [2021-11-07 01:05:41,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 260 transitions. [2021-11-07 01:05:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 01:05:41,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:41,531 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:41,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:41,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:41,744 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:05:41,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:41,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1351948363, now seen corresponding path program 1 times [2021-11-07 01:05:41,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:41,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963410927] [2021-11-07 01:05:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:41,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:41,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:41,748 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:41,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:05:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:42,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:05:42,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:43,063 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:05:43,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:05:43,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:43,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963410927] [2021-11-07 01:05:43,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963410927] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:05:43,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1635616660] [2021-11-07 01:05:43,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:43,592 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:05:43,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:05:43,598 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:05:43,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 01:05:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:44,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:05:44,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:45,028 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:05:45,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:05:45,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1635616660] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:05:45,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67184422] [2021-11-07 01:05:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:45,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:05:45,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:05:45,411 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:05:45,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 01:05:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:46,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:05:46,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:05:46,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:05:47,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67184422] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:05:47,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:05:47,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 14 [2021-11-07 01:05:47,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732225303] [2021-11-07 01:05:47,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 01:05:47,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:47,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 01:05:47,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:05:47,729 INFO L87 Difference]: Start difference. First operand 220 states and 260 transitions. Second operand has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:52,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:52,811 INFO L93 Difference]: Finished difference Result 781 states and 960 transitions. [2021-11-07 01:05:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-07 01:05:52,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-07 01:05:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:52,817 INFO L225 Difference]: With dead ends: 781 [2021-11-07 01:05:52,817 INFO L226 Difference]: Without dead ends: 604 [2021-11-07 01:05:52,833 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=689, Invalid=1963, Unknown=0, NotChecked=0, Total=2652 [2021-11-07 01:05:52,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-11-07 01:05:52,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2021-11-07 01:05:52,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 594 states have (on average 1.1851851851851851) internal successors, (704), 603 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:52,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 704 transitions. [2021-11-07 01:05:52,869 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 704 transitions. Word has length 120 [2021-11-07 01:05:52,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:52,869 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 704 transitions. [2021-11-07 01:05:52,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:52,870 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 704 transitions. [2021-11-07 01:05:52,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-07 01:05:52,877 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:52,878 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:52,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:05:53,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:53,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:53,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:05:53,503 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:05:53,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -574302741, now seen corresponding path program 2 times [2021-11-07 01:05:53,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:53,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074876343] [2021-11-07 01:05:53,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:05:53,507 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:53,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:53,508 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:53,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:05:54,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:05:54,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:05:55,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:05:55,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-07 01:05:56,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:57,716 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-07 01:05:57,716 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:57,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074876343] [2021-11-07 01:05:57,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074876343] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:05:57,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [327422272] [2021-11-07 01:05:57,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:05:57,718 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:05:57,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:05:57,720 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:05:57,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 01:06:00,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:06:00,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:06:00,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:06:00,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:01,077 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-07 01:06:01,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:02,138 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-07 01:06:02,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [327422272] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:06:02,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676345550] [2021-11-07 01:06:02,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:06:02,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:06:02,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:06:02,150 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:06:02,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 01:06:03,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:06:03,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:06:03,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:06:03,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:05,087 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 6 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-07 01:06:05,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:06,507 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 6 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-07 01:06:06,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676345550] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:06:06,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:06:06,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 6, 6] total 23 [2021-11-07 01:06:06,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225956487] [2021-11-07 01:06:06,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 01:06:06,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:06,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 01:06:06,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:06:06,512 INFO L87 Difference]: Start difference. First operand 604 states and 704 transitions. Second operand has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:10,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:10,026 INFO L93 Difference]: Finished difference Result 1733 states and 2131 transitions. [2021-11-07 01:06:10,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 01:06:10,028 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2021-11-07 01:06:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:10,037 INFO L225 Difference]: With dead ends: 1733 [2021-11-07 01:06:10,038 INFO L226 Difference]: Without dead ends: 1176 [2021-11-07 01:06:10,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1988 GetRequests, 1960 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=311, Invalid=559, Unknown=0, NotChecked=0, Total=870 [2021-11-07 01:06:10,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2021-11-07 01:06:10,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 724. [2021-11-07 01:06:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 714 states have (on average 1.1624649859943978) internal successors, (830), 723 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:10,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 830 transitions. [2021-11-07 01:06:10,117 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 830 transitions. Word has length 330 [2021-11-07 01:06:10,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:10,118 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 830 transitions. [2021-11-07 01:06:10,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:10,118 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 830 transitions. [2021-11-07 01:06:10,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-07 01:06:10,126 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:10,127 INFO L513 BasicCegarLoop]: trace histogram [14, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:06:10,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:10,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:10,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:10,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:06:10,748 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 01:06:10,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:10,749 INFO L85 PathProgramCache]: Analyzing trace with hash 890409067, now seen corresponding path program 3 times [2021-11-07 01:06:10,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:10,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072516999] [2021-11-07 01:06:10,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:06:10,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:10,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:10,760 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:10,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d166e506-2048-4197-9455-3dd0b0c55dbf/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process