./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c328ca6a6071aea6db12d1e311bd2e5e22fce6c700c884e61df52925e139f834 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:04,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:04,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:04,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:04,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:04,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:04,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:04,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:04,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:04,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:04,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:04,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:04,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:04,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:04,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:04,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:04,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:04,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:04,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:04,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:04,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:04,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:04,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:04,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:04,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:04,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:04,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:04,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:04,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:04,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:04,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:04,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:04,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:04,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:04,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:04,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:04,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:04,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:04,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:04,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:04,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:04,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 00:53:04,149 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:04,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:04,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:04,151 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:04,152 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:04,152 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:04,153 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:53:04,153 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:04,153 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:04,154 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:53:04,154 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:53:04,155 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:04,155 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:53:04,156 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:53:04,156 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:53:04,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:04,157 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:53:04,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:53:04,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:53:04,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:04,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:04,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:04,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:04,160 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:04,161 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:53:04,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:04,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:04,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:04,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:04,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:04,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:04,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:04,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:04,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:04,163 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:53:04,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:53:04,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:04,164 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:04,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:04,165 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_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c328ca6a6071aea6db12d1e311bd2e5e22fce6c700c884e61df52925e139f834 [2021-11-07 00:53:04,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:04,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:04,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:04,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:04,453 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:04,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2021-11-07 00:53:04,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data/1e6677162/ca610f0053d64a7e955e8321f4b3b480/FLAG6b3d0bbdf [2021-11-07 00:53:04,959 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:04,959 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2021-11-07 00:53:04,975 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data/1e6677162/ca610f0053d64a7e955e8321f4b3b480/FLAG6b3d0bbdf [2021-11-07 00:53:05,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data/1e6677162/ca610f0053d64a7e955e8321f4b3b480 [2021-11-07 00:53:05,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:05,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:05,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:05,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:05,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:05,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:05" (1/1) ... [2021-11-07 00:53:05,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1702646f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:05, skipping insertion in model container [2021-11-07 00:53:05,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:05" (1/1) ... [2021-11-07 00:53:05,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:05,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:05,615 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_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2021-11-07 00:53:05,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:05,634 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:53:05,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ce6161e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:05, skipping insertion in model container [2021-11-07 00:53:05,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:05,635 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:53:05,637 INFO L168 Benchmark]: Toolchain (without parser) took 264.92 ms. Allocated memory is still 94.4 MB. Free memory was 57.3 MB in the beginning and 70.7 MB in the end (delta: -13.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:05,638 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 94.4 MB. Free memory is still 73.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:05,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.40 ms. Allocated memory is still 94.4 MB. Free memory was 57.1 MB in the beginning and 70.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:05,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 94.4 MB. Free memory is still 73.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.40 ms. Allocated memory is still 94.4 MB. Free memory was 57.1 MB in the beginning and 70.7 MB in the end (delta: -13.6 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: 115]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c328ca6a6071aea6db12d1e311bd2e5e22fce6c700c884e61df52925e139f834 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:07,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:07,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:07,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:07,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:07,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:07,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:07,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:07,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:07,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:07,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:07,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:07,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:07,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:07,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:07,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:07,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:07,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:07,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:07,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:07,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:07,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:07,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:07,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:07,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:07,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:07,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:07,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:07,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:07,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:07,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:07,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:07,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:07,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:07,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:07,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:07,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:07,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:07,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:07,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:07,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:07,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 00:53:07,975 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:07,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:07,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:07,977 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:07,977 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:07,977 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:07,978 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:07,978 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:07,978 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:07,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:07,979 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:53:07,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:53:07,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:07,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:07,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:07,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:07,980 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:07,980 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:53:07,980 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:53:07,981 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:53:07,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:07,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:07,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:07,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:07,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:53:07,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:07,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:07,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:07,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:07,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:07,983 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:53:07,983 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:53:07,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:07,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:07,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:07,984 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_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c328ca6a6071aea6db12d1e311bd2e5e22fce6c700c884e61df52925e139f834 [2021-11-07 00:53:08,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:08,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:08,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:08,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:08,360 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:08,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2021-11-07 00:53:08,431 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data/054646ced/efa3faa72847467abf1d57b0edca44c3/FLAGf4773d9ac [2021-11-07 00:53:08,929 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:08,929 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2021-11-07 00:53:08,945 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data/054646ced/efa3faa72847467abf1d57b0edca44c3/FLAGf4773d9ac [2021-11-07 00:53:09,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/data/054646ced/efa3faa72847467abf1d57b0edca44c3 [2021-11-07 00:53:09,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:09,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:09,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:09,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:09,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:09,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4f2103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09, skipping insertion in model container [2021-11-07 00:53:09,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:09,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:09,635 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_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2021-11-07 00:53:09,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:09,664 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:53:09,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:09,706 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_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2021-11-07 00:53:09,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:09,732 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:53:09,774 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_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c[2835,2848] [2021-11-07 00:53:09,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:09,796 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:53:09,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09 WrapperNode [2021-11-07 00:53:09,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:09,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:09,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:53:09,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:53:09,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:09,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:53:09,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:53:09,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:53:09,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:53:09,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:53:09,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:53:09,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:53:09,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (1/1) ... [2021-11-07 00:53:09,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:09,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:09,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:53:09,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:53:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:53:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:53:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:53:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-07 00:53:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-07 00:53:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-07 00:53:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-07 00:53:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-07 00:53:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-07 00:53:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 00:53:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 00:53:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:53:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:53:09,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:53:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:53:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:53:09,997 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 00:53:12,142 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:53:12,142 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-11-07 00:53:12,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:12 BoogieIcfgContainer [2021-11-07 00:53:12,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:53:12,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:53:12,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:53:12,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:53:12,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:09" (1/3) ... [2021-11-07 00:53:12,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4043153f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:12, skipping insertion in model container [2021-11-07 00:53:12,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:09" (2/3) ... [2021-11-07 00:53:12,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4043153f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:12, skipping insertion in model container [2021-11-07 00:53:12,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:12" (3/3) ... [2021-11-07 00:53:12,154 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2021-11-07 00:53:12,159 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 00:53:12,159 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:53:12,160 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 00:53:12,160 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 00:53:12,192 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,192 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,192 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,193 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,193 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,193 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,194 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,194 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,195 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,195 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,196 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,205 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,205 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,205 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,205 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,206 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,206 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,207 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,208 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,208 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,208 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,209 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,209 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,210 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,210 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,210 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,211 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,211 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,211 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,211 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,212 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,213 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,213 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,213 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,214 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~tmp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,215 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,215 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,215 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,216 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,216 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~tmp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,218 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~tmp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,218 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~tmp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,218 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,218 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,219 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,219 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,219 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,219 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,219 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,220 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,220 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,220 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,221 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,221 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,221 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,221 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,221 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,222 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,223 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,223 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,223 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,223 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,223 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,223 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~tmp~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,224 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,224 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,224 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,224 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,224 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,224 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,225 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,225 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,225 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,225 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,226 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,226 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,226 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~tmp~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,226 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,226 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,226 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,227 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,227 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,227 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,227 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~tmp~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,228 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~tmp~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,228 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,228 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,228 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,228 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,229 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,229 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,233 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~tmp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,234 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,235 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,235 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,235 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,236 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,236 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,238 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,238 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,238 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,239 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,239 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,239 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,239 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,239 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,240 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,240 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~tmp~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,240 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,240 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,240 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,241 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,241 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,241 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,243 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,244 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,244 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,245 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,245 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 00:53:12,258 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-07 00:53:12,310 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:53:12,316 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 00:53:12,316 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 00:53:12,330 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 00:53:12,338 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 172 transitions, 368 flow [2021-11-07 00:53:12,341 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 172 transitions, 368 flow [2021-11-07 00:53:12,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 172 transitions, 368 flow [2021-11-07 00:53:12,423 INFO L129 PetriNetUnfolder]: 16/169 cut-off events. [2021-11-07 00:53:12,430 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-07 00:53:12,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 169 events. 16/169 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 105 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 133. Up to 2 conditions per place. [2021-11-07 00:53:12,444 INFO L116 LiptonReduction]: Number of co-enabled transitions 1518 [2021-11-07 00:53:37,808 INFO L131 LiptonReduction]: Checked pairs total: 2275 [2021-11-07 00:53:37,808 INFO L133 LiptonReduction]: Total number of compositions: 167 [2021-11-07 00:53:37,822 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 32 transitions, 88 flow [2021-11-07 00:53:37,851 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 172 states, 171 states have (on average 3.1578947368421053) internal successors, (540), 171 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:37,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 171 states have (on average 3.1578947368421053) internal successors, (540), 171 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 00:53:37,878 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:37,879 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:37,880 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:37,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1913933480, now seen corresponding path program 1 times [2021-11-07 00:53:37,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:37,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292604641] [2021-11-07 00:53:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:37,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:37,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:37,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:37,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:53:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:38,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 00:53:38,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:38,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:38,483 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:38,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292604641] [2021-11-07 00:53:38,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292604641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:38,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:38,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-07 00:53:38,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492492151] [2021-11-07 00:53:38,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:53:38,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:38,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:53:38,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:53:38,515 INFO L87 Difference]: Start difference. First operand has 172 states, 171 states have (on average 3.1578947368421053) internal successors, (540), 171 states have internal predecessors, (540), 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 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:38,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:38,664 INFO L93 Difference]: Finished difference Result 333 states and 1056 transitions. [2021-11-07 00:53:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:53:38,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 [2021-11-07 00:53:38,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:38,682 INFO L225 Difference]: With dead ends: 333 [2021-11-07 00:53:38,682 INFO L226 Difference]: Without dead ends: 326 [2021-11-07 00:53:38,683 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:53:38,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-07 00:53:38,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 262. [2021-11-07 00:53:38,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 261 states have (on average 3.1685823754789273) internal successors, (827), 261 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:38,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 827 transitions. [2021-11-07 00:53:38,748 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 827 transitions. Word has length 21 [2021-11-07 00:53:38,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:38,750 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 827 transitions. [2021-11-07 00:53:38,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 827 transitions. [2021-11-07 00:53:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 00:53:38,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:38,755 INFO L513 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] [2021-11-07 00:53:38,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:38,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:38,967 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:38,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:38,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1654051287, now seen corresponding path program 1 times [2021-11-07 00:53:38,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:38,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359718622] [2021-11-07 00:53:38,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:38,969 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:38,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:38,970 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:38,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:53:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:39,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 00:53:39,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:39,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 00:53:39,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:39,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:39,493 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:39,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359718622] [2021-11-07 00:53:39,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359718622] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 00:53:39,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 00:53:39,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-11-07 00:53:39,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118037723] [2021-11-07 00:53:39,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:53:39,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:39,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:53:39,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:53:39,497 INFO L87 Difference]: Start difference. First operand 262 states and 827 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 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) [2021-11-07 00:53:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:39,652 INFO L93 Difference]: Finished difference Result 265 states and 830 transitions. [2021-11-07 00:53:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:53:39,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 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 [2021-11-07 00:53:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:39,657 INFO L225 Difference]: With dead ends: 265 [2021-11-07 00:53:39,660 INFO L226 Difference]: Without dead ends: 264 [2021-11-07 00:53:39,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 00:53:39,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-11-07 00:53:39,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2021-11-07 00:53:39,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 3.1520912547528517) internal successors, (829), 263 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:39,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 829 transitions. [2021-11-07 00:53:39,705 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 829 transitions. Word has length 22 [2021-11-07 00:53:39,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:39,705 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 829 transitions. [2021-11-07 00:53:39,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 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) [2021-11-07 00:53:39,706 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 829 transitions. [2021-11-07 00:53:39,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 00:53:39,717 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:39,717 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:39,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:39,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:39,929 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:39,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:39,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1700480008, now seen corresponding path program 1 times [2021-11-07 00:53:39,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:39,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731637679] [2021-11-07 00:53:39,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:39,931 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:39,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:39,934 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:39,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:53:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:40,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 00:53:40,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:53:40,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:53:40,806 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:40,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731637679] [2021-11-07 00:53:40,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731637679] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:53:40,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1667748289] [2021-11-07 00:53:40,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:40,807 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:53:40,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:53:40,809 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:53:40,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-07 00:53:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:41,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 00:53:41,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:53:41,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:53:41,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1667748289] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:53:41,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227491458] [2021-11-07 00:53:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:41,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:53:41,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:41,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:53:41,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 00:53:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:41,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 00:53:41,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 00:53:42,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:42,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:53:42,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227491458] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 00:53:42,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-11-07 00:53:42,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7, 7, 7, 8] total 28 [2021-11-07 00:53:42,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370566041] [2021-11-07 00:53:42,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 00:53:42,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:42,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 00:53:42,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2021-11-07 00:53:42,686 INFO L87 Difference]: Start difference. First operand 264 states and 829 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:42,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:42,971 INFO L93 Difference]: Finished difference Result 276 states and 866 transitions. [2021-11-07 00:53:42,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:53:42,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 24 [2021-11-07 00:53:42,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:42,980 INFO L225 Difference]: With dead ends: 276 [2021-11-07 00:53:42,980 INFO L226 Difference]: Without dead ends: 276 [2021-11-07 00:53:42,980 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=205, Invalid=607, Unknown=0, NotChecked=0, Total=812 [2021-11-07 00:53:42,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-07 00:53:43,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 208. [2021-11-07 00:53:43,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 3.1594202898550723) internal successors, (654), 207 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:43,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 654 transitions. [2021-11-07 00:53:43,010 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 654 transitions. Word has length 24 [2021-11-07 00:53:43,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:43,010 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 654 transitions. [2021-11-07 00:53:43,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:43,011 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 654 transitions. [2021-11-07 00:53:43,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 00:53:43,012 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:43,013 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:43,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:43,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:43,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:43,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:43,618 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:43,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:43,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1967118292, now seen corresponding path program 1 times [2021-11-07 00:53:43,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:43,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102907697] [2021-11-07 00:53:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:43,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:43,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:43,628 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:43,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:53:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:43,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 00:53:43,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:44,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:53:44,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:44,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:53:44,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:44,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102907697] [2021-11-07 00:53:44,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102907697] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:44,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:44,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 00:53:44,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204696352] [2021-11-07 00:53:44,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 00:53:44,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:44,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 00:53:44,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:53:44,140 INFO L87 Difference]: Start difference. First operand 208 states and 654 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:44,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:44,273 INFO L93 Difference]: Finished difference Result 258 states and 822 transitions. [2021-11-07 00:53:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:53:44,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 25 [2021-11-07 00:53:44,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:44,280 INFO L225 Difference]: With dead ends: 258 [2021-11-07 00:53:44,281 INFO L226 Difference]: Without dead ends: 258 [2021-11-07 00:53:44,281 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:53:44,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-07 00:53:44,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2021-11-07 00:53:44,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 3.198443579766537) internal successors, (822), 257 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:44,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 822 transitions. [2021-11-07 00:53:44,294 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 822 transitions. Word has length 25 [2021-11-07 00:53:44,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:44,295 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 822 transitions. [2021-11-07 00:53:44,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:44,295 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 822 transitions. [2021-11-07 00:53:44,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 00:53:44,297 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:44,297 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:44,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:44,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:44,511 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 00:53:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2085506867, now seen corresponding path program 1 times [2021-11-07 00:53:44,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:44,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148323176] [2021-11-07 00:53:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:44,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:44,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:44,513 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:44,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a988f5bf-cfca-48ce-ada1-ae85e00dd37f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 00:53:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:44,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-07 00:53:44,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:47,226 INFO L354 Elim1Store]: treesize reduction 1280, result has 4.3 percent of original size [2021-11-07 00:53:47,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 6 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 261 treesize of output 145 [2021-11-07 00:53:48,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:53:48,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:03,055 WARN L207 SmtUtils]: Spent 9.16 s on a formula simplification. DAG size of input: 526 DAG size of output: 334 [2021-11-07 00:54:03,063 INFO L354 Elim1Store]: treesize reduction 1164, result has 49.2 percent of original size [2021-11-07 00:54:03,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 446 treesize of output 1224