./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw --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 a87860dbf851812846995aa918799e2b576306268e8c461660702f868d3b2804 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw --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 a87860dbf851812846995aa918799e2b576306268e8c461660702f868d3b2804 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:35:44,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:35:44,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:35:44,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:35:44,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:35:44,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:35:44,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:35:44,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:35:44,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:35:44,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:35:44,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:35:44,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:35:44,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:35:44,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:35:44,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:35:44,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:35:44,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:35:44,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:35:44,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:35:44,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:35:44,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:35:44,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:35:44,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:35:44,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:35:44,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:35:44,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:35:44,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:35:44,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:35:44,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:35:44,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:35:44,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:35:44,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:35:44,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:35:44,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:35:44,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:35:44,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:35:44,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:35:44,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:35:44,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:35:44,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:35:44,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:35:44,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:35:44,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:35:44,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:35:44,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:35:44,189 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:35:44,189 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:35:44,189 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:35:44,189 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:35:44,190 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:35:44,190 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:35:44,190 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:35:44,198 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:35:44,198 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:35:44,199 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:35:44,199 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:35:44,199 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:35:44,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:35:44,201 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:35:44,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:35:44,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:35:44,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:35:44,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:35:44,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:35:44,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:35:44,203 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:35:44,203 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:35:44,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:35:44,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:35:44,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:35:44,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:35:44,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:35:44,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:35:44,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:35:44,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:35:44,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:35:44,208 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:35:44,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:35:44,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:35:44,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:35:44,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:35:44,209 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_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a87860dbf851812846995aa918799e2b576306268e8c461660702f868d3b2804 [2021-10-20 05:35:44,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:35:44,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:35:44,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:35:44,517 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:35:44,518 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:35:44,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c [2021-10-20 05:35:44,591 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data/b2a7e68ef/dac7be95058c43e79fd2d17dc3a7cf31/FLAGcbc8af085 [2021-10-20 05:35:45,098 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:35:45,098 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c [2021-10-20 05:35:45,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data/b2a7e68ef/dac7be95058c43e79fd2d17dc3a7cf31/FLAGcbc8af085 [2021-10-20 05:35:45,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data/b2a7e68ef/dac7be95058c43e79fd2d17dc3a7cf31 [2021-10-20 05:35:45,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:35:45,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:35:45,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:35:45,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:35:45,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:35:45,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:35:45" (1/1) ... [2021-10-20 05:35:45,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb60e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:45, skipping insertion in model container [2021-10-20 05:35:45,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:35:45" (1/1) ... [2021-10-20 05:35:45,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:35:45,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:35:45,705 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_1850a785-c229-40bb-bdb8-d84073383ed3/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c[2553,2566] [2021-10-20 05:35:45,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:35:45,724 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) [2021-10-20 05:35:45,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@399ea8d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:45, skipping insertion in model container [2021-10-20 05:35:45,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:35:45,726 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:35:45,728 INFO L168 Benchmark]: Toolchain (without parser) took 260.28 ms. Allocated memory is still 94.4 MB. Free memory was 60.4 MB in the beginning and 69.9 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:35:45,729 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:35:45,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.53 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 69.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:35:45,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.53 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 69.9 MB in the end (delta: -9.7 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: 109]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:35:48,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:35:48,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:35:48,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:35:48,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:35:48,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:35:48,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:35:48,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:35:48,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:35:48,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:35:48,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:35:48,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:35:48,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:35:48,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:35:48,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:35:48,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:35:48,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:35:48,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:35:48,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:35:48,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:35:48,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:35:48,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:35:48,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:35:48,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:35:48,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:35:48,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:35:48,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:35:48,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:35:48,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:35:48,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:35:48,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:35:48,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:35:48,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:35:48,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:35:48,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:35:48,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:35:48,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:35:48,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:35:48,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:35:48,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:35:48,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:35:48,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:35:48,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:35:48,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:35:48,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:35:48,232 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:35:48,232 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:35:48,232 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:35:48,232 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:35:48,233 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:35:48,233 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:35:48,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:35:48,236 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:35:48,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:35:48,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:35:48,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:35:48,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:35:48,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:35:48,238 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:35:48,238 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:35:48,238 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:35:48,239 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:35:48,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:35:48,239 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:35:48,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:35:48,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:35:48,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:35:48,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:35:48,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:35:48,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:35:48,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:35:48,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:35:48,241 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:35:48,242 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:35:48,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:35:48,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:35:48,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:35:48,243 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_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a87860dbf851812846995aa918799e2b576306268e8c461660702f868d3b2804 [2021-10-20 05:35:48,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:35:48,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:35:48,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:35:48,654 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:35:48,655 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:35:48,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c [2021-10-20 05:35:48,744 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data/6ee709264/91ed325b4d2042b7a5d9bc4b0ad13164/FLAGb988c553d [2021-10-20 05:35:49,347 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:35:49,347 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c [2021-10-20 05:35:49,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data/6ee709264/91ed325b4d2042b7a5d9bc4b0ad13164/FLAGb988c553d [2021-10-20 05:35:49,693 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/data/6ee709264/91ed325b4d2042b7a5d9bc4b0ad13164 [2021-10-20 05:35:49,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:35:49,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:35:49,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:35:49,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:35:49,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:35:49,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:35:49" (1/1) ... [2021-10-20 05:35:49,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c51be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:49, skipping insertion in model container [2021-10-20 05:35:49,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:35:49" (1/1) ... [2021-10-20 05:35:49,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:35:49,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:35:49,956 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_1850a785-c229-40bb-bdb8-d84073383ed3/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c[2553,2566] [2021-10-20 05:35:49,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:35:50,007 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:35:50,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:35:50,055 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_1850a785-c229-40bb-bdb8-d84073383ed3/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c[2553,2566] [2021-10-20 05:35:50,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:35:50,071 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:35:50,117 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_1850a785-c229-40bb-bdb8-d84073383ed3/sv-benchmarks/c/weaver/popl20-more-max-array.wvr.c[2553,2566] [2021-10-20 05:35:50,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:35:50,152 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:35:50,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50 WrapperNode [2021-10-20 05:35:50,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:35:50,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:35:50,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:35:50,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:35:50,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:35:50,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:35:50,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:35:50,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:35:50,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:35:50,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:35:50,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:35:50,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:35:50,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (1/1) ... [2021-10-20 05:35:50,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:35:50,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:35:50,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:35:50,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:35:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-20 05:35:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-20 05:35:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-20 05:35:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-20 05:35:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-20 05:35:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-20 05:35:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:35:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:35:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-20 05:35:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-20 05:35:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-20 05:35:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-20 05:35:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:35:50,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:35:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-20 05:35:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-20 05:35:50,314 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-20 05:35:51,223 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:35:51,224 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-20 05:35:51,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:35:51 BoogieIcfgContainer [2021-10-20 05:35:51,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:35:51,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:35:51,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:35:51,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:35:51,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:35:49" (1/3) ... [2021-10-20 05:35:51,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44148bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:35:51, skipping insertion in model container [2021-10-20 05:35:51,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:35:50" (2/3) ... [2021-10-20 05:35:51,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44148bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:35:51, skipping insertion in model container [2021-10-20 05:35:51,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:35:51" (3/3) ... [2021-10-20 05:35:51,235 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array.wvr.c [2021-10-20 05:35:51,240 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-20 05:35:51,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:35:51,241 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:35:51,241 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-20 05:35:51,276 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,276 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,277 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,277 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,277 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,277 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,277 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,278 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,278 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,278 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,278 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,278 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,279 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,280 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,280 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,281 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,281 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,282 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,282 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,283 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,283 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,283 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,283 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,284 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,284 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,284 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,284 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,284 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,285 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,286 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,287 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,287 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,287 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,288 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,288 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,289 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,289 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,289 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,289 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,290 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,290 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,290 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,290 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,290 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,291 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,291 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,291 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,291 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,291 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,292 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,292 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,292 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,292 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,293 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,293 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,293 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,293 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,293 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,294 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,294 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,298 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,299 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,301 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,301 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,302 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,302 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,302 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,302 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,304 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,305 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,305 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,305 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,305 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,306 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:35:51,312 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-20 05:35:51,365 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:35:51,372 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 [2021-10-20 05:35:51,372 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-20 05:35:51,388 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-20 05:35:51,400 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 136 transitions, 296 flow [2021-10-20 05:35:51,404 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 136 transitions, 296 flow [2021-10-20 05:35:51,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 136 transitions, 296 flow [2021-10-20 05:35:51,523 INFO L129 PetriNetUnfolder]: 12/133 cut-off events. [2021-10-20 05:35:51,524 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-20 05:35:51,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 12/133 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 88 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2021-10-20 05:35:51,536 INFO L116 LiptonReduction]: Number of co-enabled transitions 1320 [2021-10-20 05:36:06,793 INFO L131 LiptonReduction]: Checked pairs total: 1504 [2021-10-20 05:36:06,793 INFO L133 LiptonReduction]: Total number of compositions: 127 [2021-10-20 05:36:06,800 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 28 transitions, 80 flow [2021-10-20 05:36:06,816 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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) [2021-10-20 05:36:06,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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) [2021-10-20 05:36:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-20 05:36:06,827 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:06,828 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:06,829 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-20 05:36:06,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:06,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1569669511, now seen corresponding path program 1 times [2021-10-20 05:36:06,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:06,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385925032] [2021-10-20 05:36:06,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:06,847 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:06,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:06,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:06,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:36:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:06,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:36:06,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:07,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:07,351 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:07,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385925032] [2021-10-20 05:36:07,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385925032] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:07,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:07,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-20 05:36:07,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554080449] [2021-10-20 05:36:07,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:36:07,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:07,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:36:07,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:07,373 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-20 05:36:07,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:07,419 INFO L93 Difference]: Finished difference Result 204 states and 632 transitions. [2021-10-20 05:36:07,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:36:07,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 20 [2021-10-20 05:36:07,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:07,434 INFO L225 Difference]: With dead ends: 204 [2021-10-20 05:36:07,434 INFO L226 Difference]: Without dead ends: 197 [2021-10-20 05:36:07,436 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:36:07,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-20 05:36:07,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-10-20 05:36:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 3.13265306122449) internal successors, (614), 196 states have internal predecessors, (614), 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) [2021-10-20 05:36:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 614 transitions. [2021-10-20 05:36:07,508 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 614 transitions. Word has length 20 [2021-10-20 05:36:07,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:07,509 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 614 transitions. [2021-10-20 05:36:07,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-20 05:36:07,514 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 614 transitions. [2021-10-20 05:36:07,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 05:36:07,526 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:07,526 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:07,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:07,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:07,740 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-20 05:36:07,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:07,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2028274910, now seen corresponding path program 1 times [2021-10-20 05:36:07,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:07,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142312115] [2021-10-20 05:36:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:07,742 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:07,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:07,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:07,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:36:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:07,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-20 05:36:07,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:08,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 05:36:08,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:08,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 05:36:08,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:08,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142312115] [2021-10-20 05:36:08,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142312115] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:36:08,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:36:08,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 05:36:08,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128857763] [2021-10-20 05:36:08,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-20 05:36:08,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:08,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-20 05:36:08,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:36:08,171 INFO L87 Difference]: Start difference. First operand 197 states and 614 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-10-20 05:36:08,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:08,287 INFO L93 Difference]: Finished difference Result 173 states and 548 transitions. [2021-10-20 05:36:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 05:36:08,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 21 [2021-10-20 05:36:08,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:08,291 INFO L225 Difference]: With dead ends: 173 [2021-10-20 05:36:08,291 INFO L226 Difference]: Without dead ends: 173 [2021-10-20 05:36:08,292 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 31.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:36:08,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-20 05:36:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 133. [2021-10-20 05:36:08,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 3.121212121212121) internal successors, (412), 132 states have internal predecessors, (412), 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) [2021-10-20 05:36:08,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 412 transitions. [2021-10-20 05:36:08,316 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 412 transitions. Word has length 21 [2021-10-20 05:36:08,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:08,318 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 412 transitions. [2021-10-20 05:36:08,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-10-20 05:36:08,318 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 412 transitions. [2021-10-20 05:36:08,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 05:36:08,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:08,326 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:08,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:08,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:08,538 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-20 05:36:08,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:08,544 INFO L82 PathProgramCache]: Analyzing trace with hash -703979925, now seen corresponding path program 1 times [2021-10-20 05:36:08,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:08,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132947304] [2021-10-20 05:36:08,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:08,545 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:08,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:08,547 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:08,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:36:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:08,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-20 05:36:08,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 05:36:08,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:08,999 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:08,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132947304] [2021-10-20 05:36:08,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132947304] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-20 05:36:08,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-20 05:36:08,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-10-20 05:36:09,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088416687] [2021-10-20 05:36:09,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:36:09,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:09,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:36:09,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:36:09,001 INFO L87 Difference]: Start difference. First operand 133 states and 412 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) [2021-10-20 05:36:09,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:09,043 INFO L93 Difference]: Finished difference Result 134 states and 413 transitions. [2021-10-20 05:36:09,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:36:09,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 21 [2021-10-20 05:36:09,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:09,048 INFO L225 Difference]: With dead ends: 134 [2021-10-20 05:36:09,048 INFO L226 Difference]: Without dead ends: 134 [2021-10-20 05:36:09,048 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 67.9ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-20 05:36:09,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-20 05:36:09,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-10-20 05:36:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 3.1052631578947367) internal successors, (413), 133 states have internal predecessors, (413), 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) [2021-10-20 05:36:09,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 413 transitions. [2021-10-20 05:36:09,066 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 413 transitions. Word has length 21 [2021-10-20 05:36:09,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:09,066 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 413 transitions. [2021-10-20 05:36:09,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) [2021-10-20 05:36:09,066 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 413 transitions. [2021-10-20 05:36:09,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-20 05:36:09,067 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:09,068 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:09,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:09,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:09,280 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-20 05:36:09,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:09,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1630191134, now seen corresponding path program 1 times [2021-10-20 05:36:09,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:09,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333092596] [2021-10-20 05:36:09,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:09,282 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:09,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:09,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:09,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:36:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:09,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-20 05:36:09,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-20 05:36:09,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:09,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-20 05:36:09,849 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:36:09,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333092596] [2021-10-20 05:36:09,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333092596] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-20 05:36:09,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-20 05:36:09,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-10-20 05:36:09,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207537685] [2021-10-20 05:36:09,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:36:09,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:36:09,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:36:09,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:36:09,852 INFO L87 Difference]: Start difference. First operand 134 states and 413 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-20 05:36:09,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:36:09,979 INFO L93 Difference]: Finished difference Result 166 states and 519 transitions. [2021-10-20 05:36:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:36:09,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-10-20 05:36:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:36:09,982 INFO L225 Difference]: With dead ends: 166 [2021-10-20 05:36:09,982 INFO L226 Difference]: Without dead ends: 166 [2021-10-20 05:36:09,983 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 100.9ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-20 05:36:09,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-20 05:36:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-10-20 05:36:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 3.1454545454545455) internal successors, (519), 165 states have internal predecessors, (519), 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) [2021-10-20 05:36:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 519 transitions. [2021-10-20 05:36:09,995 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 519 transitions. Word has length 22 [2021-10-20 05:36:09,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:36:09,995 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 519 transitions. [2021-10-20 05:36:09,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-20 05:36:09,996 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 519 transitions. [2021-10-20 05:36:09,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 05:36:09,997 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:36:09,997 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:36:10,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:36:10,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:36:10,210 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-20 05:36:10,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:36:10,210 INFO L82 PathProgramCache]: Analyzing trace with hash 152104597, now seen corresponding path program 1 times [2021-10-20 05:36:10,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:36:10,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959122871] [2021-10-20 05:36:10,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:36:10,211 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:36:10,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:36:10,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:36:10,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:36:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:36:10,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-20 05:36:10,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:36:11,575 INFO L354 Elim1Store]: treesize reduction 262, result has 4.7 percent of original size [2021-10-20 05:36:11,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 216 treesize of output 90 [2021-10-20 05:36:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:36:11,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:36:12,796 INFO L354 Elim1Store]: treesize reduction 442, result has 10.0 percent of original size [2021-10-20 05:36:12,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 285 treesize of output 123 [2021-10-20 05:37:39,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:37:39,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959122871] [2021-10-20 05:37:39,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2021-10-20 05:37:39,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1402492283] [2021-10-20 05:37:39,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:37:39,774 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:37:39,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:37:39,778 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:37:39,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-20 05:37:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:37:40,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-20 05:37:40,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:37:40,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:37:40,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:37:40,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:37:40,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:37:40,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:37:40,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:37:40,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 53 [2021-10-20 05:37:43,016 INFO L354 Elim1Store]: treesize reduction 815, result has 6.5 percent of original size [2021-10-20 05:37:43,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 75 treesize of output 95 [2021-10-20 05:39:58,331 WARN L207 SmtUtils]: Spent 2.21 m on a formula simplification. DAG size of input: 344 DAG size of output: 114 [2021-10-20 05:39:58,333 INFO L354 Elim1Store]: treesize reduction 1570, result has 19.4 percent of original size [2021-10-20 05:39:58,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 113 treesize of output 432 [2021-10-20 05:45:10,274 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-20 05:45:10,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-20 05:45:10,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479670634] [2021-10-20 05:45:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:45:10,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:45:10,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:45:10,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-20 05:45:10,280 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:45:10,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-20 05:45:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:45:12,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-20 05:45:12,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:45:12,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-20 05:45:12,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:45:12,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-20 05:45:12,912 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-20 05:45:12,912 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-20 05:45:12,916 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:45:12,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-20 05:45:12,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-20 05:45:12,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-20 05:45:12,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-20 05:45:13,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:45:13,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-20 05:45:13,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a785-c229-40bb-bdb8-d84073383ed3/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt [2021-10-20 05:45:13,522 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-20 05:45:13,522 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:45:13,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:45:13 BasicIcfg [2021-10-20 05:45:13,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:45:13,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:45:13,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:45:13,540 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:45:13,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:35:51" (3/4) ... [2021-10-20 05:45:13,543 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-20 05:45:13,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:45:13,558 INFO L168 Benchmark]: Toolchain (without parser) took 563843.91 ms. Allocated memory was 60.8 MB in the beginning and 123.7 MB in the end (delta: 62.9 MB). Free memory was 40.5 MB in the beginning and 52.8 MB in the end (delta: -12.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:45:13,558 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 60.8 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:45:13,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.58 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 41.3 MB in the end (delta: -881.0 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:45:13,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.91 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 39.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:45:13,560 INFO L168 Benchmark]: Boogie Preprocessor took 33.90 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 37.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:45:13,560 INFO L168 Benchmark]: RCFGBuilder took 997.07 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 37.9 MB in the beginning and 55.2 MB in the end (delta: -17.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:45:13,561 INFO L168 Benchmark]: TraceAbstraction took 562311.19 ms. Allocated memory was 83.9 MB in the beginning and 123.7 MB in the end (delta: 39.8 MB). Free memory was 54.6 MB in the beginning and 54.0 MB in the end (delta: 532.1 kB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-20 05:45:13,561 INFO L168 Benchmark]: Witness Printer took 3.83 ms. Allocated memory is still 123.7 MB. Free memory was 53.8 MB in the beginning and 52.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:45:13,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 60.8 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 448.58 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 41.3 MB in the end (delta: -881.0 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.91 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 39.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.90 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 37.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 997.07 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 37.9 MB in the beginning and 55.2 MB in the end (delta: -17.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 562311.19 ms. Allocated memory was 83.9 MB in the beginning and 123.7 MB in the end (delta: 39.8 MB). Free memory was 54.6 MB in the beginning and 54.0 MB in the end (delta: 532.1 kB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.83 ms. Allocated memory is still 123.7 MB. Free memory was 53.8 MB in the beginning and 52.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15389.3ms, 134 PlacesBefore, 34 PlacesAfterwards, 136 TransitionsBefore, 28 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 6 FixpointIterations, 73 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 6 ConcurrentYvCompositions, 8 ChoiceCompositions, 127 TotalNumberOfCompositions, 1504 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1392, positive: 1362, positive conditional: 0, positive unconditional: 1362, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 880, positive: 870, positive conditional: 0, positive unconditional: 870, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 880, positive: 870, positive conditional: 0, positive unconditional: 870, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 423, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 423, negative conditional: 0, negative unconditional: 423, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1392, positive: 492, positive conditional: 0, positive unconditional: 492, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 880, unknown conditional: 0, unknown unconditional: 880] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 100]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L40] 0 int* A; [L41] 0 int max1, max2, M, N; [L82] 0 pthread_t t1, t2, t3; [L85] 0 M = __VERIFIER_nondet_int() [L86] 0 N = __VERIFIER_nondet_int() [L37] COND TRUE 0 !cond [L37] COND TRUE 0 !cond [L109] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L110] 0 int i = 0; [L110] COND TRUE 0 i < size [L111] 0 arr[i] = __VERIFIER_nondet_int() [L110] 0 i++ [L113] 0 return arr; [L87] 0 A = create_fresh_int_array(N) [L37] COND TRUE 0 !cond [L92] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L93] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L58] 2 int i=0; [L58] COND FALSE 2 !(i