./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:10:41,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:10:41,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:10:41,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:10:41,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:10:41,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:10:41,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:10:41,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:10:41,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:10:41,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:10:41,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:10:41,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:10:41,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:10:41,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:10:41,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:10:41,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:10:41,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:10:41,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:10:41,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:10:41,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:10:41,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:10:41,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:10:41,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:10:41,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:10:41,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:10:41,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:10:41,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:10:41,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:10:41,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:10:41,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:10:41,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:10:41,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:10:41,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:10:41,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:10:41,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:10:41,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:10:41,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:10:41,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:10:41,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:10:41,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:10:41,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:10:41,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 15:10:41,336 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:10:41,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:10:41,336 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:10:41,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:10:41,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:10:41,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:10:41,348 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:10:41,348 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:10:41,348 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:10:41,349 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:10:41,349 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:10:41,349 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:10:41,349 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:10:41,349 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:10:41,349 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:10:41,350 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:10:41,350 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:10:41,350 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:10:41,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 15:10:41,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 15:10:41,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:10:41,351 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:10:41,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:10:41,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:10:41,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:10:41,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:10:41,351 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 15:10:41,351 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 15:10:41,351 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 15:10:41,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:10:41,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:10:41,352 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:10:41,352 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:10:41,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:10:41,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:10:41,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:10:41,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:10:41,353 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:10:41,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:10:41,353 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:10:41,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:10:41,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:10:41,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2022-12-14 15:10:41,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:10:41,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:10:41,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:10:41,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:10:41,537 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:10:41,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2022-12-14 15:10:44,075 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:10:44,240 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:10:44,240 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2022-12-14 15:10:44,251 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/data/06d85ff33/178e07740eb34bbb9cf64acbb51b3854/FLAG28ecaa927 [2022-12-14 15:10:44,268 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/data/06d85ff33/178e07740eb34bbb9cf64acbb51b3854 [2022-12-14 15:10:44,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:10:44,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:10:44,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:10:44,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:10:44,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:10:44,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:10:44" (1/1) ... [2022-12-14 15:10:44,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9776ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:44, skipping insertion in model container [2022-12-14 15:10:44,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:10:44" (1/1) ... [2022-12-14 15:10:44,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:10:44,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:10:44,588 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:44,589 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:44,589 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:44,589 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:44,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:10:44,620 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-12-14 15:10:44,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6601ba32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:44, skipping insertion in model container [2022-12-14 15:10:44,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:10:44,621 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 15:10:44,622 INFO L158 Benchmark]: Toolchain (without parser) took 349.74ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 64.5MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 15:10:44,622 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory was 86.4MB in the beginning and 86.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:10:44,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.73ms. Allocated memory is still 115.3MB. Free memory was 79.1MB in the beginning and 64.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 15:10:44,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory was 86.4MB in the beginning and 86.3MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.73ms. Allocated memory is still 115.3MB. Free memory was 79.1MB in the beginning and 64.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1045]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:10:45,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:10:45,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:10:46,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:10:46,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:10:46,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:10:46,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:10:46,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:10:46,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:10:46,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:10:46,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:10:46,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:10:46,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:10:46,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:10:46,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:10:46,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:10:46,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:10:46,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:10:46,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:10:46,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:10:46,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:10:46,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:10:46,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:10:46,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:10:46,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:10:46,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:10:46,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:10:46,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:10:46,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:10:46,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:10:46,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:10:46,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:10:46,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:10:46,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:10:46,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:10:46,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:10:46,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:10:46,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:10:46,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:10:46,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:10:46,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:10:46,046 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 15:10:46,067 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:10:46,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:10:46,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:10:46,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:10:46,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:10:46,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:10:46,069 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:10:46,069 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:10:46,069 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:10:46,070 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:10:46,070 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:10:46,070 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:10:46,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 15:10:46,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 15:10:46,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:10:46,071 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:10:46,071 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:10:46,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:10:46,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:10:46,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:10:46,072 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 15:10:46,072 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 15:10:46,072 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 15:10:46,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:10:46,072 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:10:46,073 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 15:10:46,073 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 15:10:46,073 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:10:46,073 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:10:46,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:10:46,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 15:10:46,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:10:46,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:10:46,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:10:46,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:10:46,074 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 15:10:46,074 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 15:10:46,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:10:46,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 15:10:46,075 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_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2022-12-14 15:10:46,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:10:46,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:10:46,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:10:46,315 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:10:46,315 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:10:46,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2022-12-14 15:10:48,881 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:10:49,063 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:10:49,063 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2022-12-14 15:10:49,080 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/data/d99cb5e07/39760d47091c49d98e379be81862df78/FLAG1d65c8147 [2022-12-14 15:10:49,093 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/data/d99cb5e07/39760d47091c49d98e379be81862df78 [2022-12-14 15:10:49,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:10:49,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:10:49,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:10:49,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:10:49,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:10:49,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e49829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49, skipping insertion in model container [2022-12-14 15:10:49,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:10:49,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:10:49,425 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,425 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,425 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,426 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:10:49,457 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 15:10:49,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:10:49,478 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,479 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,479 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,479 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:10:49,493 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:10:49,524 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,524 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,524 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,525 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 15:10:49,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:10:49,585 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:10:49,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49 WrapperNode [2022-12-14 15:10:49,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:10:49,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:10:49,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:10:49,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:10:49,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,631 INFO L138 Inliner]: procedures = 276, calls = 38, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 153 [2022-12-14 15:10:49,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:10:49,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:10:49,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:10:49,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:10:49,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,652 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:10:49,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:10:49,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:10:49,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:10:49,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (1/1) ... [2022-12-14 15:10:49,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:10:49,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:10:49,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:10:49,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:10:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 15:10:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 15:10:49,711 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 15:10:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:10:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:10:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:10:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 15:10:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 15:10:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:10:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:10:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:10:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:10:49,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:10:49,713 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 15:10:49,842 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:10:49,843 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:10:50,315 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:10:50,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:10:50,322 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 15:10:50,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:10:50 BoogieIcfgContainer [2022-12-14 15:10:50,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:10:50,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:10:50,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:10:50,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:10:50,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:10:49" (1/3) ... [2022-12-14 15:10:50,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b01d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:10:50, skipping insertion in model container [2022-12-14 15:10:50,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:10:49" (2/3) ... [2022-12-14 15:10:50,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b01d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:10:50, skipping insertion in model container [2022-12-14 15:10:50,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:10:50" (3/3) ... [2022-12-14 15:10:50,333 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2022-12-14 15:10:50,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:10:50,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-12-14 15:10:50,349 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 15:10:50,425 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 15:10:50,460 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 15:10:50,475 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 275 transitions, 560 flow [2022-12-14 15:10:50,478 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 275 transitions, 560 flow [2022-12-14 15:10:50,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 275 transitions, 560 flow [2022-12-14 15:10:50,541 INFO L130 PetriNetUnfolder]: 17/273 cut-off events. [2022-12-14 15:10:50,541 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 15:10:50,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 273 events. 17/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 736 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 212. Up to 2 conditions per place. [2022-12-14 15:10:50,551 INFO L119 LiptonReduction]: Number of co-enabled transitions 8134 [2022-12-14 15:13:05,502 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:13:15,688 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:13:21,356 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:14:49,853 WARN L233 SmtUtils]: Spent 1.47m on a formula simplification. DAG size of input: 212 DAG size of output: 204 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:15:27,040 WARN L233 SmtUtils]: Spent 37.18s on a formula simplification that was a NOOP. DAG size: 200 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:16:56,038 WARN L233 SmtUtils]: Spent 1.48m on a formula simplification. DAG size of input: 212 DAG size of output: 204 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:17:40,678 WARN L233 SmtUtils]: Spent 44.64s on a formula simplification that was a NOOP. DAG size: 200 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:17:46,052 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:17:51,306 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:17:56,466 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:18:01,500 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:19:34,358 WARN L233 SmtUtils]: Spent 1.51m on a formula simplification that was a NOOP. DAG size: 220 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:20:59,390 WARN L233 SmtUtils]: Spent 1.42m on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:22:38,462 WARN L233 SmtUtils]: Spent 1.65m on a formula simplification that was a NOOP. DAG size: 220 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:24:01,129 WARN L233 SmtUtils]: Spent 1.38m on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:24:19,049 INFO L134 LiptonReduction]: Checked pairs total: 12160 [2022-12-14 15:24:19,049 INFO L136 LiptonReduction]: Total number of compositions: 332 [2022-12-14 15:24:19,055 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 73 transitions, 156 flow [2022-12-14 15:24:19,097 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 989 states, 784 states have (on average 3.5051020408163267) internal successors, (2748), 988 states have internal predecessors, (2748), 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) [2022-12-14 15:24:19,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:24:19,113 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c0a168a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:24:19,113 INFO L358 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2022-12-14 15:24:19,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 989 states, 784 states have (on average 3.5051020408163267) internal successors, (2748), 988 states have internal predecessors, (2748), 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) [2022-12-14 15:24:19,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 15:24:19,119 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:19,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 15:24:19,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-12-14 15:24:19,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:19,123 INFO L85 PathProgramCache]: Analyzing trace with hash 30376, now seen corresponding path program 1 times [2022-12-14 15:24:19,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:24:19,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449096776] [2022-12-14 15:24:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:19,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:24:19,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:24:19,133 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:24:19,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 15:24:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:19,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 15:24:19,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:19,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:24:19,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:24:19,302 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 15:24:19,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 23 [2022-12-14 15:24:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:19,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:24:19,366 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:24:19,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449096776] [2022-12-14 15:24:19,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449096776] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:19,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:19,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:24:19,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69400871] [2022-12-14 15:24:19,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:19,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:19,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:24:19,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:19,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:19,391 INFO L87 Difference]: Start difference. First operand has 989 states, 784 states have (on average 3.5051020408163267) internal successors, (2748), 988 states have internal predecessors, (2748), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 15:24:21,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:21,133 INFO L93 Difference]: Finished difference Result 860 states and 2407 transitions. [2022-12-14 15:24:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:21,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-12-14 15:24:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:21,148 INFO L225 Difference]: With dead ends: 860 [2022-12-14 15:24:21,148 INFO L226 Difference]: Without dead ends: 860 [2022-12-14 15:24:21,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:21,151 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:21,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 15:24:21,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-12-14 15:24:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 858. [2022-12-14 15:24:21,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 702 states have (on average 3.4287749287749287) internal successors, (2407), 857 states have internal predecessors, (2407), 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) [2022-12-14 15:24:21,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 2407 transitions. [2022-12-14 15:24:21,207 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 2407 transitions. Word has length 2 [2022-12-14 15:24:21,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:21,207 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 2407 transitions. [2022-12-14 15:24:21,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 15:24:21,208 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 2407 transitions. [2022-12-14 15:24:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 15:24:21,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:21,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 15:24:21,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:24:21,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:24:21,410 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-12-14 15:24:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:21,412 INFO L85 PathProgramCache]: Analyzing trace with hash 30374, now seen corresponding path program 1 times [2022-12-14 15:24:21,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:24:21,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608339408] [2022-12-14 15:24:21,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:21,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:24:21,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:24:21,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:24:21,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 15:24:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:21,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 15:24:21,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:21,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:24:21,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:24:21,586 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:24:21,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 31 [2022-12-14 15:24:21,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:21,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:24:21,610 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:24:21,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608339408] [2022-12-14 15:24:21,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608339408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:21,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:21,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:24:21,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561677522] [2022-12-14 15:24:21,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:21,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:21,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:24:21,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:21,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:21,613 INFO L87 Difference]: Start difference. First operand 858 states and 2407 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 15:24:22,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:22,860 INFO L93 Difference]: Finished difference Result 823 states and 2310 transitions. [2022-12-14 15:24:22,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:22,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-12-14 15:24:22,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:22,866 INFO L225 Difference]: With dead ends: 823 [2022-12-14 15:24:22,867 INFO L226 Difference]: Without dead ends: 823 [2022-12-14 15:24:22,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:22,868 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:22,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 15:24:22,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-12-14 15:24:22,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 823. [2022-12-14 15:24:22,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 673 states have (on average 3.4323922734026744) internal successors, (2310), 822 states have internal predecessors, (2310), 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) [2022-12-14 15:24:22,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 2310 transitions. [2022-12-14 15:24:22,904 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 2310 transitions. Word has length 2 [2022-12-14 15:24:22,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:22,904 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 2310 transitions. [2022-12-14 15:24:22,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 15:24:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 2310 transitions. [2022-12-14 15:24:22,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 15:24:22,905 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:22,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 15:24:22,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 15:24:23,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:24:23,107 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-12-14 15:24:23,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash 943049, now seen corresponding path program 1 times [2022-12-14 15:24:23,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:24:23,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431150466] [2022-12-14 15:24:23,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:23,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:24:23,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:24:23,114 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:24:23,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 15:24:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:23,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 15:24:23,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:23,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2022-12-14 15:24:23,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-12-14 15:24:23,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:23,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:24:23,405 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:24:23,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431150466] [2022-12-14 15:24:23,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431150466] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:23,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:23,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:24:23,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976368570] [2022-12-14 15:24:23,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:23,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:24:23,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:24:23,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:24:23,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:24:23,406 INFO L87 Difference]: Start difference. First operand 823 states and 2310 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-12-14 15:24:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:26,444 INFO L93 Difference]: Finished difference Result 827 states and 2313 transitions. [2022-12-14 15:24:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:24:26,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-12-14 15:24:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:26,448 INFO L225 Difference]: With dead ends: 827 [2022-12-14 15:24:26,448 INFO L226 Difference]: Without dead ends: 827 [2022-12-14 15:24:26,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:24:26,449 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:26,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 15:24:26,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-12-14 15:24:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 823. [2022-12-14 15:24:26,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 673 states have (on average 3.429420505200594) internal successors, (2308), 822 states have internal predecessors, (2308), 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) [2022-12-14 15:24:26,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 2308 transitions. [2022-12-14 15:24:26,465 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 2308 transitions. Word has length 3 [2022-12-14 15:24:26,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:26,465 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 2308 transitions. [2022-12-14 15:24:26,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-12-14 15:24:26,466 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 2308 transitions. [2022-12-14 15:24:26,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 15:24:26,466 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:26,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 15:24:26,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-12-14 15:24:26,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:24:26,667 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-12-14 15:24:26,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:26,667 INFO L85 PathProgramCache]: Analyzing trace with hash 29231942, now seen corresponding path program 1 times [2022-12-14 15:24:26,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:24:26,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359700288] [2022-12-14 15:24:26,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:26,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:24:26,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:24:26,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:24:26,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 15:24:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:26,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 15:24:26,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:26,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:24:26,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:24:26,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359700288] [2022-12-14 15:24:26,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359700288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:26,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:26,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:24:26,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519987662] [2022-12-14 15:24:26,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:26,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:26,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:24:26,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:26,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:26,768 INFO L87 Difference]: Start difference. First operand 823 states and 2308 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-14 15:24:28,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:28,157 INFO L93 Difference]: Finished difference Result 827 states and 2311 transitions. [2022-12-14 15:24:28,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:28,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-12-14 15:24:28,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:28,161 INFO L225 Difference]: With dead ends: 827 [2022-12-14 15:24:28,161 INFO L226 Difference]: Without dead ends: 827 [2022-12-14 15:24:28,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:28,162 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:28,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 15:24:28,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-12-14 15:24:28,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 824. [2022-12-14 15:24:28,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 674 states have (on average 3.4287833827893177) internal successors, (2311), 823 states have internal predecessors, (2311), 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) [2022-12-14 15:24:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 2311 transitions. [2022-12-14 15:24:28,195 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 2311 transitions. Word has length 4 [2022-12-14 15:24:28,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:28,195 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 2311 transitions. [2022-12-14 15:24:28,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-12-14 15:24:28,196 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 2311 transitions. [2022-12-14 15:24:28,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 15:24:28,196 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:28,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 15:24:28,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 15:24:28,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:24:28,398 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 52 more)] === [2022-12-14 15:24:28,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash 29235664, now seen corresponding path program 1 times [2022-12-14 15:24:28,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:24:28,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666572780] [2022-12-14 15:24:28,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:28,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:24:28,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:24:28,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:24:28,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd28034-aa5d-4cd3-b98c-8b4fb6883e14/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 15:24:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:28,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-14 15:24:28,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:32,695 INFO L321 Elim1Store]: treesize reduction 372, result has 28.0 percent of original size [2022-12-14 15:24:32,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 1022 treesize of output 857 [2022-12-14 15:24:41,264 WARN L233 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 121 DAG size of output: 54 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:24:41,265 INFO L321 Elim1Store]: treesize reduction 372, result has 28.0 percent of original size [2022-12-14 15:24:41,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 1022 treesize of output 857 [2022-12-14 15:24:41,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 15:24:42,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2022-12-14 15:24:42,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 15:24:42,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 15:24:43,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 15:24:43,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2022-12-14 15:24:44,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 15:24:44,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2022-12-14 15:24:44,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-12-14 15:24:44,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2022-12-14 15:25:08,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:08,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:08,890 INFO L217 Elim1Store]: Index analysis took 101 ms [2022-12-14 15:25:09,062 INFO L321 Elim1Store]: treesize reduction 126, result has 24.6 percent of original size [2022-12-14 15:25:09,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 1643 treesize of output 1668 [2022-12-14 15:25:13,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:13,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:14,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:14,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:14,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:14,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:15,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:15,305 INFO L321 Elim1Store]: treesize reduction 265, result has 5.7 percent of original size [2022-12-14 15:25:15,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 2013 treesize of output 2042 [2022-12-14 15:25:15,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:16,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:16,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:16,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:16,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:16,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:16,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:17,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:17,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:17,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:17,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 818 treesize of output 719 [2022-12-14 15:25:17,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:17,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:25:17,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:17,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:17,976 INFO L321 Elim1Store]: treesize reduction 169, result has 29.6 percent of original size [2022-12-14 15:25:17,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 10173 treesize of output 10222 [2022-12-14 15:25:19,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:19,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:19,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:19,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:19,540 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:25:19,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:19,715 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:25:19,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:19,872 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:25:20,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:20,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:20,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:20,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:20,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:20,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:20,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:20,925 INFO L217 Elim1Store]: Index analysis took 135 ms [2022-12-14 15:25:20,963 INFO L321 Elim1Store]: treesize reduction 198, result has 0.5 percent of original size [2022-12-14 15:25:20,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 576 treesize of output 557 [2022-12-14 15:25:20,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:21,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:21,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:21,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:21,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:21,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:21,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:21,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:25:21,358 INFO L217 Elim1Store]: Index analysis took 148 ms [2022-12-14 15:25:21,482 INFO L321 Elim1Store]: treesize reduction 86, result has 22.5 percent of original size [2022-12-14 15:25:21,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 2455 treesize of output 2470 [2022-12-14 15:25:21,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:21,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:21,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:22,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 15:25:22,527 INFO L321 Elim1Store]: treesize reduction 119, result has 0.8 percent of original size [2022-12-14 15:25:22,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 268 treesize of output 33 [2022-12-14 15:25:22,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3