./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_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_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- 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 07:46:34,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:46:34,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:46:34,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:46:34,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:46:34,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:46:34,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:46:34,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:46:34,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:46:34,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:46:34,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:46:34,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:46:34,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:46:34,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:46:34,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:46:34,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:46:34,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:46:34,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:46:34,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:46:34,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:46:34,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:46:34,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:46:34,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:46:34,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:46:34,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:46:34,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:46:34,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:46:34,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:46:34,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:46:34,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:46:34,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:46:34,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:46:34,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:46:34,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:46:34,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:46:34,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:46:34,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:46:34,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:46:34,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:46:34,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:46:34,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:46:34,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 07:46:34,252 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:46:34,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:46:34,253 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:46:34,253 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:46:34,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:46:34,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:46:34,254 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:46:34,254 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:46:34,254 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:46:34,255 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:46:34,255 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:46:34,255 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:46:34,255 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:46:34,255 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:46:34,255 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:46:34,256 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:46:34,256 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:46:34,256 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:46:34,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 07:46:34,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 07:46:34,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:46:34,257 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:46:34,257 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:46:34,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:46:34,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:46:34,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:46:34,257 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 07:46:34,258 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 07:46:34,258 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 07:46:34,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:46:34,258 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:46:34,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:46:34,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:46:34,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:46:34,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:46:34,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:46:34,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:46:34,259 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:46:34,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:46:34,259 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:46:34,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:46:34,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:46:34,260 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_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2022-12-14 07:46:34,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:46:34,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:46:34,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:46:34,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:46:34,459 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:46:34,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2022-12-14 07:46:36,963 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:46:37,155 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:46:37,156 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2022-12-14 07:46:37,165 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/data/ef2109b01/10161528580c4b67bbd3a0bd664177bd/FLAG48a7a9a9a [2022-12-14 07:46:37,534 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/data/ef2109b01/10161528580c4b67bbd3a0bd664177bd [2022-12-14 07:46:37,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:46:37,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:46:37,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:46:37,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:46:37,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:46:37,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:46:37" (1/1) ... [2022-12-14 07:46:37,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340bc74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:37, skipping insertion in model container [2022-12-14 07:46:37,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:46:37" (1/1) ... [2022-12-14 07:46:37,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:46:37,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:46:37,857 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:37,857 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:37,858 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:37,858 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:37,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:46:37,885 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 07:46:37,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a0bc6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:37, skipping insertion in model container [2022-12-14 07:46:37,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:46:37,886 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 07:46:37,887 INFO L158 Benchmark]: Toolchain (without parser) took 348.02ms. Allocated memory is still 119.5MB. Free memory was 81.8MB in the beginning and 66.8MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:46:37,888 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:46:37,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.63ms. Allocated memory is still 119.5MB. Free memory was 81.5MB in the beginning and 66.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:46:37,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.63ms. Allocated memory is still 119.5MB. Free memory was 81.5MB in the beginning and 66.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1031]: 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_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- 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 07:46:39,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:46:39,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:46:39,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:46:39,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:46:39,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:46:39,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:46:39,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:46:39,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:46:39,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:46:39,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:46:39,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:46:39,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:46:39,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:46:39,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:46:39,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:46:39,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:46:39,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:46:39,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:46:39,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:46:39,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:46:39,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:46:39,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:46:39,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:46:39,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:46:39,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:46:39,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:46:39,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:46:39,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:46:39,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:46:39,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:46:39,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:46:39,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:46:39,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:46:39,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:46:39,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:46:39,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:46:39,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:46:39,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:46:39,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:46:39,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:46:39,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 07:46:39,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:46:39,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:46:39,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:46:39,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:46:39,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:46:39,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:46:39,347 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:46:39,347 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:46:39,347 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:46:39,347 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:46:39,347 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:46:39,347 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:46:39,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 07:46:39,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 07:46:39,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:46:39,348 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:46:39,348 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:46:39,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:46:39,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:46:39,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:46:39,349 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 07:46:39,349 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 07:46:39,349 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 07:46:39,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:46:39,349 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:46:39,349 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:46:39,349 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:46:39,349 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:46:39,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:46:39,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:46:39,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:46:39,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:46:39,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:46:39,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:46:39,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:46:39,368 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:46:39,368 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:46:39,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:46:39,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:46:39,369 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_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2022-12-14 07:46:39,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:46:39,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:46:39,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:46:39,630 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:46:39,630 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:46:39,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2022-12-14 07:46:42,200 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:46:42,416 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:46:42,417 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2022-12-14 07:46:42,430 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/data/0d8e2d0e9/0c01d68eb1604bf1b11ed0d9532cbdca/FLAGeb7dd0f32 [2022-12-14 07:46:42,750 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/data/0d8e2d0e9/0c01d68eb1604bf1b11ed0d9532cbdca [2022-12-14 07:46:42,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:46:42,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:46:42,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:46:42,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:46:42,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:46:42,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:46:42" (1/1) ... [2022-12-14 07:46:42,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e706f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:42, skipping insertion in model container [2022-12-14 07:46:42,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:46:42" (1/1) ... [2022-12-14 07:46:42,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:46:42,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:46:43,093 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,093 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,094 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,094 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:46:43,123 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 07:46:43,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:46:43,158 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,158 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,159 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,159 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:46:43,169 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:46:43,190 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,190 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,190 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,190 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-14 07:46:43,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:46:43,230 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:46:43,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43 WrapperNode [2022-12-14 07:46:43,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:46:43,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:46:43,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:46:43,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:46:43,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,267 INFO L138 Inliner]: procedures = 274, calls = 32, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 117 [2022-12-14 07:46:43,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:46:43,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:46:43,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:46:43,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:46:43,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,287 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:46:43,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:46:43,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:46:43,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:46:43,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (1/1) ... [2022-12-14 07:46:43,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:46:43,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:46:43,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:46:43,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:46:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 07:46:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 07:46:43,340 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 07:46:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:46:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 07:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 07:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:46:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:46:43,342 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 07:46:43,458 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:46:43,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:46:43,869 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:46:43,874 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:46:43,875 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 07:46:43,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:46:43 BoogieIcfgContainer [2022-12-14 07:46:43,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:46:43,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:46:43,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:46:43,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:46:43,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:46:42" (1/3) ... [2022-12-14 07:46:43,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1591e448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:46:43, skipping insertion in model container [2022-12-14 07:46:43,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:46:43" (2/3) ... [2022-12-14 07:46:43,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1591e448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:46:43, skipping insertion in model container [2022-12-14 07:46:43,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:46:43" (3/3) ... [2022-12-14 07:46:43,890 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2022-12-14 07:46:43,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:46:43,909 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-12-14 07:46:43,909 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 07:46:44,005 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 07:46:44,034 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 07:46:44,048 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 218 transitions, 446 flow [2022-12-14 07:46:44,051 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 218 transitions, 446 flow [2022-12-14 07:46:44,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 218 transitions, 446 flow [2022-12-14 07:46:44,122 INFO L130 PetriNetUnfolder]: 14/216 cut-off events. [2022-12-14 07:46:44,122 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 07:46:44,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 216 events. 14/216 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 634 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-12-14 07:46:44,134 INFO L119 LiptonReduction]: Number of co-enabled transitions 8134 [2022-12-14 07:48:10,719 WARN L233 SmtUtils]: Spent 12.08s on a formula simplification. DAG size of input: 155 DAG size of output: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:48:17,909 WARN L233 SmtUtils]: Spent 7.19s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:48:30,466 WARN L233 SmtUtils]: Spent 12.55s on a formula simplification. DAG size of input: 155 DAG size of output: 147 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:48:37,108 WARN L233 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:48:46,112 WARN L233 SmtUtils]: Spent 9.00s on a formula simplification. DAG size of input: 171 DAG size of output: 163 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:49:01,878 WARN L233 SmtUtils]: Spent 11.61s on a formula simplification. DAG size of input: 171 DAG size of output: 163 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:49:07,174 WARN L233 SmtUtils]: Spent 5.29s 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 07:49:20,111 WARN L233 SmtUtils]: Spent 12.93s on a formula simplification. DAG size of input: 175 DAG size of output: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:49:26,512 WARN L233 SmtUtils]: Spent 6.40s 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 07:49:36,852 WARN L233 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 175 DAG size of output: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:49:42,027 WARN L233 SmtUtils]: Spent 5.17s 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 07:49:52,625 WARN L233 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 159 DAG size of output: 151 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:50:07,744 WARN L233 SmtUtils]: Spent 10.43s on a formula simplification. DAG size of input: 159 DAG size of output: 151 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:50:21,404 WARN L233 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 156 DAG size of output: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:50:34,895 WARN L233 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 156 DAG size of output: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:51:59,727 WARN L233 SmtUtils]: Spent 1.33m on a formula simplification. DAG size of input: 211 DAG size of output: 202 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:52:44,019 WARN L233 SmtUtils]: Spent 44.29s 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 07:54:19,910 WARN L233 SmtUtils]: Spent 1.60m on a formula simplification. DAG size of input: 210 DAG size of output: 202 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 07:55:12,562 WARN L233 SmtUtils]: Spent 52.65s 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 07:56:53,810 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 07:58:16,953 WARN L233 SmtUtils]: Spent 1.39m 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 07:59:41,666 WARN L233 SmtUtils]: Spent 1.41m 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 08:00:56,577 WARN L233 SmtUtils]: Spent 1.25m 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 08:00:56,581 INFO L134 LiptonReduction]: Checked pairs total: 13610 [2022-12-14 08:00:56,581 INFO L136 LiptonReduction]: Total number of compositions: 276 [2022-12-14 08:00:56,586 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 69 transitions, 148 flow [2022-12-14 08:00:56,626 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 985 states, 784 states have (on average 3.5) internal successors, (2744), 984 states have internal predecessors, (2744), 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 08:00:56,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:00:56,641 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;@2c7041a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:00:56,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2022-12-14 08:00:56,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 985 states, 784 states have (on average 3.5) internal successors, (2744), 984 states have internal predecessors, (2744), 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 08:00:56,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:00:56,648 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:00:56,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:00:56,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-14 08:00:56,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:00:56,652 INFO L85 PathProgramCache]: Analyzing trace with hash 24219, now seen corresponding path program 1 times [2022-12-14 08:00:56,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:00:56,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110676677] [2022-12-14 08:00:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:00:56,661 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 08:00:56,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:00:56,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:00:56,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:00:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:00:56,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:00:56,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:00:56,748 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 08:00:56,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:00:56,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:00:56,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110676677] [2022-12-14 08:00:56,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110676677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:00:56,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:00:56,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:00:56,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629464466] [2022-12-14 08:00:56,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:00:56,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:00:56,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:00:56,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:00:56,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:00:56,774 INFO L87 Difference]: Start difference. First operand has 985 states, 784 states have (on average 3.5) internal successors, (2744), 984 states have internal predecessors, (2744), 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 08:00:58,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:00:58,960 INFO L93 Difference]: Finished difference Result 861 states and 2406 transitions. [2022-12-14 08:00:58,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:00:58,963 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 08:00:58,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:00:58,976 INFO L225 Difference]: With dead ends: 861 [2022-12-14 08:00:58,976 INFO L226 Difference]: Without dead ends: 861 [2022-12-14 08:00:58,977 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 08:00:58,979 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:00:58,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 08:00:58,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-12-14 08:00:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 853. [2022-12-14 08:00:59,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 701 states have (on average 3.4236804564907275) internal successors, (2400), 852 states have internal predecessors, (2400), 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 08:00:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 2400 transitions. [2022-12-14 08:00:59,033 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 2400 transitions. Word has length 2 [2022-12-14 08:00:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:00:59,034 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 2400 transitions. [2022-12-14 08:00:59,034 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 08:00:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 2400 transitions. [2022-12-14 08:00:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:00:59,035 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:00:59,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:00:59,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:00:59,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:00:59,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-14 08:00:59,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:00:59,239 INFO L85 PathProgramCache]: Analyzing trace with hash 24244, now seen corresponding path program 1 times [2022-12-14 08:00:59,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:00:59,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864198228] [2022-12-14 08:00:59,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:00:59,242 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 08:00:59,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:00:59,246 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:00:59,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:00:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:00:59,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 08:00:59,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:00:59,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:00:59,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:00:59,413 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 08:00:59,414 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 08:00:59,450 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 08:00:59,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:00:59,450 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:00:59,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864198228] [2022-12-14 08:00:59,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864198228] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:00:59,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:00:59,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:00:59,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369115137] [2022-12-14 08:00:59,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:00:59,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:00:59,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:00:59,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:00:59,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:00:59,452 INFO L87 Difference]: Start difference. First operand 853 states and 2400 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 08:01:00,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:01:01,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:01:01,270 INFO L93 Difference]: Finished difference Result 820 states and 2306 transitions. [2022-12-14 08:01:01,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:01:01,272 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 08:01:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:01:01,275 INFO L225 Difference]: With dead ends: 820 [2022-12-14 08:01:01,275 INFO L226 Difference]: Without dead ends: 820 [2022-12-14 08:01:01,275 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 08:01:01,276 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:01:01,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 08:01:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-12-14 08:01:01,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 820. [2022-12-14 08:01:01,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 672 states have (on average 3.431547619047619) internal successors, (2306), 819 states have internal predecessors, (2306), 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 08:01:01,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 2306 transitions. [2022-12-14 08:01:01,294 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 2306 transitions. Word has length 2 [2022-12-14 08:01:01,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:01:01,294 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 2306 transitions. [2022-12-14 08:01:01,295 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 08:01:01,295 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 2306 transitions. [2022-12-14 08:01:01,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:01:01,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:01:01,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:01:01,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:01,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:01,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-14 08:01:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:01:01,498 INFO L85 PathProgramCache]: Analyzing trace with hash 24245, now seen corresponding path program 1 times [2022-12-14 08:01:01,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:01:01,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596727405] [2022-12-14 08:01:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:01:01,501 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 08:01:01,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:01:01,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:01,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:01:01,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 08:01:01,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:01:01,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:01:01,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:01:01,621 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 08:01:01,622 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 08:01:01,664 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 08:01:01,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:01:01,664 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:01:01,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596727405] [2022-12-14 08:01:01,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596727405] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:01:01,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:01:01,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:01:01,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528538977] [2022-12-14 08:01:01,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:01:01,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:01:01,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:01:01,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:01:01,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:01:01,666 INFO L87 Difference]: Start difference. First operand 820 states and 2306 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 08:01:03,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:01:03,375 INFO L93 Difference]: Finished difference Result 821 states and 2308 transitions. [2022-12-14 08:01:03,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:01:03,376 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 08:01:03,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:01:03,379 INFO L225 Difference]: With dead ends: 821 [2022-12-14 08:01:03,379 INFO L226 Difference]: Without dead ends: 821 [2022-12-14 08:01:03,379 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 08:01:03,380 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:01:03,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 08:01:03,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-12-14 08:01:03,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2022-12-14 08:01:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 673 states have (on average 3.429420505200594) internal successors, (2308), 820 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 08:01:03,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 2308 transitions. [2022-12-14 08:01:03,403 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 2308 transitions. Word has length 2 [2022-12-14 08:01:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:01:03,403 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 2308 transitions. [2022-12-14 08:01:03,403 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 08:01:03,403 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 2308 transitions. [2022-12-14 08:01:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:01:03,404 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:01:03,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:01:03,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:03,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:03,604 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-14 08:01:03,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:01:03,605 INFO L85 PathProgramCache]: Analyzing trace with hash 753487, now seen corresponding path program 1 times [2022-12-14 08:01:03,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:01:03,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126312597] [2022-12-14 08:01:03,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:01:03,605 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 08:01:03,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:01:03,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:03,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:01:03,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 08:01:03,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:01:03,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 24 [2022-12-14 08:01:03,812 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 08:01:03,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:01:03,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:01:03,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126312597] [2022-12-14 08:01:03,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126312597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:01:03,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:01:03,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:01:03,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452980437] [2022-12-14 08:01:03,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:01:03,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:01:03,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:01:03,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:01:03,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:01:03,815 INFO L87 Difference]: Start difference. First operand 821 states and 2308 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 08:01:04,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:01:06,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:01:06,699 INFO L93 Difference]: Finished difference Result 824 states and 2311 transitions. [2022-12-14 08:01:06,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:01:06,700 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 08:01:06,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:01:06,705 INFO L225 Difference]: With dead ends: 824 [2022-12-14 08:01:06,705 INFO L226 Difference]: Without dead ends: 824 [2022-12-14 08:01:06,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:01:06,706 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:01:06,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 0 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 08:01:06,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-12-14 08:01:06,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 822. [2022-12-14 08:01:06,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 674 states have (on average 3.4287833827893177) internal successors, (2311), 821 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 08:01:06,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 2311 transitions. [2022-12-14 08:01:06,730 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 2311 transitions. Word has length 3 [2022-12-14 08:01:06,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:01:06,731 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 2311 transitions. [2022-12-14 08:01:06,731 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 08:01:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 2311 transitions. [2022-12-14 08:01:06,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:01:06,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:01:06,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:01:06,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:06,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:06,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-14 08:01:06,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:01:06,934 INFO L85 PathProgramCache]: Analyzing trace with hash 753488, now seen corresponding path program 1 times [2022-12-14 08:01:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:01:06,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189753177] [2022-12-14 08:01:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:01:06,937 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 08:01:06,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:01:06,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:06,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:01:07,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 08:01:07,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:01:07,251 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 08:01:07,251 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-14 08:01:07,296 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 08:01:07,322 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 08:01:07,369 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 08:01:07,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:01:07,369 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:01:07,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189753177] [2022-12-14 08:01:07,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189753177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:01:07,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:01:07,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:01:07,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066777256] [2022-12-14 08:01:07,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:01:07,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:01:07,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:01:07,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:01:07,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:01:07,371 INFO L87 Difference]: Start difference. First operand 822 states and 2311 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 08:01:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:01:10,439 INFO L93 Difference]: Finished difference Result 826 states and 2315 transitions. [2022-12-14 08:01:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:01:10,440 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 08:01:10,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:01:10,445 INFO L225 Difference]: With dead ends: 826 [2022-12-14 08:01:10,445 INFO L226 Difference]: Without dead ends: 826 [2022-12-14 08:01:10,445 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 08:01:10,446 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:01:10,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 08:01:10,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-12-14 08:01:10,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 822. [2022-12-14 08:01:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 674 states have (on average 3.427299703264095) internal successors, (2310), 821 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 08:01:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 2310 transitions. [2022-12-14 08:01:10,460 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 2310 transitions. Word has length 3 [2022-12-14 08:01:10,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:01:10,460 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 2310 transitions. [2022-12-14 08:01:10,460 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 08:01:10,460 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 2310 transitions. [2022-12-14 08:01:10,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:01:10,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:01:10,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:01:10,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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)] Ended with exit code 0 [2022-12-14 08:01:10,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:10,661 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-14 08:01:10,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:01:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash 23359183, now seen corresponding path program 1 times [2022-12-14 08:01:10,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:01:10,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201723168] [2022-12-14 08:01:10,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:01:10,663 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 08:01:10,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:01:10,664 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:10,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 (7)] Waiting until timeout for monitored process [2022-12-14 08:01:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:01:11,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 08:01:11,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:01:12,111 INFO L321 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2022-12-14 08:01:12,112 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 8 case distinctions, treesize of input 1022 treesize of output 797 [2022-12-14 08:01:12,192 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 6 treesize of output 7 [2022-12-14 08:01:12,246 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 08:01:12,294 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 08:01:12,350 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 08:01:12,401 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 08:01:12,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:12,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:12,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:12,816 INFO L321 Elim1Store]: treesize reduction 61, result has 20.8 percent of original size [2022-12-14 08:01:12,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 367 treesize of output 687 [2022-12-14 08:01:12,907 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 08:01:12,960 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 08:01:13,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:13,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:13,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:13,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:13,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:13,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 364 treesize of output 664 [2022-12-14 08:01:13,224 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 08:01:13,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:13,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 127 treesize of output 17 [2022-12-14 08:01:13,831 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 17 treesize of output 11 [2022-12-14 08:01:13,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:01:13,901 INFO L321 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2022-12-14 08:01:13,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 157 treesize of output 36 [2022-12-14 08:01:13,910 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 08:01:14,036 INFO L321 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2022-12-14 08:01:14,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 153 treesize of output 49 [2022-12-14 08:01:14,041 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 40 treesize of output 22 [2022-12-14 08:01:14,298 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 08:01:14,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:01:14,298 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:01:14,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201723168] [2022-12-14 08:01:14,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201723168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:01:14,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:01:14,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:01:14,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346064538] [2022-12-14 08:01:14,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:01:14,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:01:14,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:01:14,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:01:14,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:01:14,299 INFO L87 Difference]: Start difference. First operand 822 states and 2310 transitions. Second operand has 4 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 08:01:16,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:01:16,411 INFO L93 Difference]: Finished difference Result 821 states and 2309 transitions. [2022-12-14 08:01:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:01:16,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 08:01:16,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:01:16,414 INFO L225 Difference]: With dead ends: 821 [2022-12-14 08:01:16,414 INFO L226 Difference]: Without dead ends: 821 [2022-12-14 08:01:16,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 08:01:16,415 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:01:16,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 5 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 08:01:16,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-12-14 08:01:16,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 820. [2022-12-14 08:01:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 673 states have (on average 3.424962852897474) internal successors, (2305), 819 states have internal predecessors, (2305), 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 08:01:16,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 2305 transitions. [2022-12-14 08:01:16,427 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 2305 transitions. Word has length 4 [2022-12-14 08:01:16,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:01:16,427 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 2305 transitions. [2022-12-14 08:01:16,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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 08:01:16,427 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 2305 transitions. [2022-12-14 08:01:16,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:01:16,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:01:16,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:01:16,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 (7)] Ended with exit code 0 [2022-12-14 08:01:16,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:16,629 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-14 08:01:16,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:01:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash 23359184, now seen corresponding path program 1 times [2022-12-14 08:01:16,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:01:16,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079882815] [2022-12-14 08:01:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:01:16,634 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 08:01:16,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:01:16,637 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 08:01:16,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7e77e3b-f2f3-4e0c-b2ec-842f8ffbd582/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 (8)] Waiting until timeout for monitored process [2022-12-14 08:01:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:01:16,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-14 08:01:16,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:01:19,350 INFO L321 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2022-12-14 08:01:19,350 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 8 case distinctions, treesize of input 248 treesize of output 485 [2022-12-14 08:01:24,064 INFO L321 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2022-12-14 08:01:24,064 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 8 case distinctions, treesize of input 248 treesize of output 485 [2022-12-14 08:01:24,359 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 08:01:24,634 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 08:01:24,911 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 08:01:25,163 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 08:01:25,461 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 08:01:25,700 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 08:01:25,956 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 08:01:26,302 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 08:01:26,487 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 08:01:26,624 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 08:01:30,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:31,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:31,078 INFO L321 Elim1Store]: treesize reduction 60, result has 21.1 percent of original size [2022-12-14 08:01:31,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 523 treesize of output 446 [2022-12-14 08:01:31,127 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 08:01:31,242 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 08:01:31,560 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 08:01:31,617 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 08:01:31,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:01:31,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:32,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:32,009 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 666 treesize of output 535 [2022-12-14 08:01:32,076 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 08:01:32,212 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 08:01:37,091 INFO L321 Elim1Store]: treesize reduction 348, result has 23.0 percent of original size [2022-12-14 08:01:37,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 4361 treesize of output 3961 [2022-12-14 08:01:37,453 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 15 treesize of output 9 [2022-12-14 08:01:37,528 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 15 treesize of output 9 [2022-12-14 08:01:37,908 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 15 treesize of output 9 [2022-12-14 08:01:37,960 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 15 treesize of output 9 [2022-12-14 08:01:38,104 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 15 treesize of output 9 [2022-12-14 08:01:38,351 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 15 treesize of output 9 [2022-12-14 08:01:38,415 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 15 treesize of output 9 [2022-12-14 08:01:38,432 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 15 treesize of output 9 [2022-12-14 08:01:47,392 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-12-14 08:01:47,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:47,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:47,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:47,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:47,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:47,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:47,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:47,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:47,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:48,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:48,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:48,184 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 08:01:48,184 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 2 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:48,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:48,250 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 08:01:48,250 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 4 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:48,627 INFO L321 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2022-12-14 08:01:48,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:48,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:48,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 17 [2022-12-14 08:01:48,754 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:48,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 17 [2022-12-14 08:01:48,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 17 [2022-12-14 08:01:49,238 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-12-14 08:01:49,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:49,286 INFO L321 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2022-12-14 08:01:49,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:49,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:49,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:49,521 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 08:01:49,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:49,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:49,603 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 08:01:49,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:50,051 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-12-14 08:01:50,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:50,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:50,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 17 [2022-12-14 08:01:50,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:50,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 17 [2022-12-14 08:01:50,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 17 [2022-12-14 08:01:50,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:50,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:50,608 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 08:01:50,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:50,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:50,670 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 08:01:50,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:50,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:50,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:50,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:50,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:51,029 INFO L321 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2022-12-14 08:01:51,030 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:51,501 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-12-14 08:01:51,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 213 treesize of output 22 [2022-12-14 08:01:51,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:51,589 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 213 treesize of output 22 [2022-12-14 08:01:51,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:51,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:01:51,641 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 213 treesize of output 22