./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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8 --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 Automizer --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 [2022-12-13 12:47:27,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:47:27,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:47:27,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:47:27,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:47:27,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:47:27,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:47:27,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:47:27,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:47:27,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:47:27,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:47:27,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:47:27,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:47:27,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:47:27,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:47:27,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:47:27,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:47:27,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:47:27,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:47:27,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:47:27,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:47:27,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:47:27,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:47:27,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:47:27,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:47:27,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:47:27,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:47:27,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:47:27,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:47:27,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:47:27,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:47:27,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:47:27,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:47:27,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:47:27,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:47:27,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:47:27,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:47:27,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:47:27,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:47:27,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:47:27,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:47:27,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 12:47:27,341 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:47:27,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:47:27,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:47:27,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:47:27,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:47:27,343 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:47:27,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:47:27,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:47:27,344 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:47:27,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:47:27,344 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:47:27,344 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:47:27,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:47:27,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:47:27,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:47:27,345 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:47:27,345 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:47:27,345 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:47:27,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:47:27,346 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:47:27,346 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:47:27,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:47:27,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:47:27,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:47:27,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:47:27,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:47:27,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:47:27,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:47:27,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:47:27,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:47:27,348 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:47:27,348 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:47:27,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:47:27,348 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:47:27,348 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2022-12-13 12:47:27,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:47:27,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:47:27,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:47:27,563 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:47:27,563 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:47:27,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2022-12-13 12:47:30,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:47:30,334 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:47:30,334 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2022-12-13 12:47:30,344 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/data/fdcbe355c/f8a5a2f967df4d1aa069362dff8beaa0/FLAG9aae99482 [2022-12-13 12:47:30,358 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/data/fdcbe355c/f8a5a2f967df4d1aa069362dff8beaa0 [2022-12-13 12:47:30,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:47:30,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:47:30,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:47:30,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:47:30,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:47:30,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:47:30" (1/1) ... [2022-12-13 12:47:30,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ddd42a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:30, skipping insertion in model container [2022-12-13 12:47:30,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:47:30" (1/1) ... [2022-12-13 12:47:30,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:47:30,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:47:30,737 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:30,737 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:30,738 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:30,738 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:30,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:47:30,778 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) [2022-12-13 12:47:30,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2497040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:30, skipping insertion in model container [2022-12-13 12:47:30,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:47:30,780 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 12:47:30,781 INFO L158 Benchmark]: Toolchain (without parser) took 418.74ms. Allocated memory is still 136.3MB. Free memory was 101.7MB in the beginning and 87.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:47:30,782 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:47:30,783 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.41ms. Allocated memory is still 136.3MB. Free memory was 101.7MB in the beginning and 87.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:47:30,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.41ms. Allocated memory is still 136.3MB. Free memory was 101.7MB in the beginning and 87.2MB in the end (delta: 14.5MB). 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8 --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 Automizer --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 [2022-12-13 12:47:32,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:47:32,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:47:32,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:47:32,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:47:32,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:47:32,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:47:32,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:47:32,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:47:32,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:47:32,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:47:32,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:47:32,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:47:32,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:47:32,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:47:32,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:47:32,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:47:32,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:47:32,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:47:32,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:47:32,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:47:32,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:47:32,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:47:32,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:47:32,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:47:32,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:47:32,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:47:32,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:47:32,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:47:32,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:47:32,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:47:32,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:47:32,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:47:32,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:47:32,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:47:32,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:47:32,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:47:32,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:47:32,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:47:32,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:47:32,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:47:32,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 12:47:32,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:47:32,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:47:32,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:47:32,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:47:32,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:47:32,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:47:32,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:47:32,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:47:32,431 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:47:32,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:47:32,431 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:47:32,431 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:47:32,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:47:32,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:47:32,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:47:32,432 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:47:32,432 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:47:32,432 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:47:32,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:47:32,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:47:32,432 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:47:32,433 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:47:32,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:47:32,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:47:32,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:47:32,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:47:32,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:47:32,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:47:32,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:47:32,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:47:32,434 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:47:32,434 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:47:32,434 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:47:32,434 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:47:32,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:47:32,435 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:47:32,435 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:47:32,435 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2022-12-13 12:47:32,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:47:32,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:47:32,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:47:32,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:47:32,693 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:47:32,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2022-12-13 12:47:35,288 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:47:35,504 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:47:35,504 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2022-12-13 12:47:35,518 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/data/cf02a8b62/e5baa7b21ce74c5397da21035ec6ac64/FLAG6edc2eb32 [2022-12-13 12:47:35,532 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/data/cf02a8b62/e5baa7b21ce74c5397da21035ec6ac64 [2022-12-13 12:47:35,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:47:35,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:47:35,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:47:35,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:47:35,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:47:35,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:47:35" (1/1) ... [2022-12-13 12:47:35,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d767bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:35, skipping insertion in model container [2022-12-13 12:47:35,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:47:35" (1/1) ... [2022-12-13 12:47:35,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:47:35,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:47:35,940 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:35,940 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:35,941 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:35,941 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:35,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:47:35,969 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 12:47:35,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:47:36,004 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:36,004 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:36,004 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:36,005 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:36,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:47:36,028 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:47:36,059 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:36,059 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:36,059 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:36,060 WARN L1576 CHandler]: Possible shadowing of function new [2022-12-13 12:47:36,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:47:36,119 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:47:36,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36 WrapperNode [2022-12-13 12:47:36,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:47:36,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:47:36,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:47:36,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:47:36,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,170 INFO L138 Inliner]: procedures = 274, calls = 32, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 117 [2022-12-13 12:47:36,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:47:36,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:47:36,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:47:36,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:47:36,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,200 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:47:36,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:47:36,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:47:36,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:47:36,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (1/1) ... [2022-12-13 12:47:36,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:47:36,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:47:36,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:47:36,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:47:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 12:47:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-13 12:47:36,274 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-13 12:47:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:47:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 12:47:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:47:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 12:47:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 12:47:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 12:47:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:47:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 12:47:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:47:36,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:47:36,277 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:47:36,416 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:47:36,418 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:47:36,897 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:47:36,903 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:47:36,903 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 12:47:36,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:47:36 BoogieIcfgContainer [2022-12-13 12:47:36,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:47:36,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:47:36,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:47:36,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:47:36,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:47:35" (1/3) ... [2022-12-13 12:47:36,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b1f1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:47:36, skipping insertion in model container [2022-12-13 12:47:36,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:36" (2/3) ... [2022-12-13 12:47:36,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b1f1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:47:36, skipping insertion in model container [2022-12-13 12:47:36,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:47:36" (3/3) ... [2022-12-13 12:47:36,911 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2022-12-13 12:47:36,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:47:36,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-12-13 12:47:36,925 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:47:37,012 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:47:37,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 218 transitions, 446 flow [2022-12-13 12:47:37,116 INFO L130 PetriNetUnfolder]: 14/216 cut-off events. [2022-12-13 12:47:37,116 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:47:37,123 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. [2022-12-13 12:47:37,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 218 transitions, 446 flow [2022-12-13 12:47:37,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 216 transitions, 438 flow [2022-12-13 12:47:37,133 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:47:37,143 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 216 transitions, 438 flow [2022-12-13 12:47:37,146 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 216 transitions, 438 flow [2022-12-13 12:47:37,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 216 transitions, 438 flow [2022-12-13 12:47:37,187 INFO L130 PetriNetUnfolder]: 14/216 cut-off events. [2022-12-13 12:47:37,188 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:47:37,189 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. [2022-12-13 12:47:37,193 INFO L119 LiptonReduction]: Number of co-enabled transitions 8134 [2022-12-13 12:48:45,372 WARN L233 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:48:53,404 WARN L233 SmtUtils]: Spent 8.03s 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) [2022-12-13 12:49:04,568 WARN L233 SmtUtils]: Spent 11.16s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:49:10,129 WARN L233 SmtUtils]: Spent 5.56s 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) [2022-12-13 12:49:48,577 WARN L233 SmtUtils]: Spent 20.01s on a formula simplification that was a NOOP. DAG size: 170 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:50:13,720 WARN L233 SmtUtils]: Spent 25.14s on a formula simplification that was a NOOP. DAG size: 162 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:50:43,067 WARN L233 SmtUtils]: Spent 29.34s on a formula simplification that was a NOOP. DAG size: 170 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:51:09,418 WARN L233 SmtUtils]: Spent 26.35s on a formula simplification that was a NOOP. DAG size: 162 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:51:21,042 WARN L233 SmtUtils]: Spent 9.89s 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) [2022-12-13 12:51:34,268 WARN L233 SmtUtils]: Spent 9.00s 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) [2022-12-13 12:51:47,275 WARN L233 SmtUtils]: Spent 8.95s 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) [2022-12-13 12:52:00,664 WARN L233 SmtUtils]: Spent 8.98s 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) [2022-12-13 12:52:16,649 WARN L233 SmtUtils]: Spent 12.00s 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) [2022-12-13 12:52:22,725 WARN L233 SmtUtils]: Spent 6.07s 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) [2022-12-13 12:52:33,992 WARN L233 SmtUtils]: Spent 11.26s 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) [2022-12-13 12:52:39,487 WARN L233 SmtUtils]: Spent 5.49s 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) [2022-12-13 12:52:50,002 WARN L233 SmtUtils]: Spent 10.19s 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) [2022-12-13 12:53:05,050 WARN L233 SmtUtils]: Spent 10.86s 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) [2022-12-13 12:55:53,776 WARN L233 SmtUtils]: Spent 2.73m on a formula simplification. DAG size of input: 230 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 12:57:06,357 WARN L233 SmtUtils]: Spent 1.21m 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) [2022-12-13 12:59:47,687 WARN L233 SmtUtils]: Spent 2.69m on a formula simplification. DAG size of input: 230 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:01:07,756 WARN L233 SmtUtils]: Spent 1.33m 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) [2022-12-13 13:01:07,766 INFO L134 LiptonReduction]: Checked pairs total: 12713 [2022-12-13 13:01:07,766 INFO L136 LiptonReduction]: Total number of compositions: 266 [2022-12-13 13:01:07,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:01:07,780 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=PETRI_NET, 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;@4a0f4a42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:01:07,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2022-12-13 13:01:07,782 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 13:01:07,782 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:01:07,782 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:01:07,783 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 13:01:07,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 13:01:07,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:07,788 INFO L85 PathProgramCache]: Analyzing trace with hash 24279, now seen corresponding path program 1 times [2022-12-13 13:01:07,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:01:07,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386426134] [2022-12-13 13:01:07,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:07,798 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 [2022-12-13 13:01:07,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:01:07,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:01:07,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:07,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:01:07,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:07,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:01:07,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:01:07,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:01:07,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386426134] [2022-12-13 13:01:07,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386426134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:07,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:07,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:01:07,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509250881] [2022-12-13 13:01:07,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:07,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:01:07,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:01:07,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:01:07,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:01:07,977 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 484 [2022-12-13 13:01:07,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:01:07,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:01:07,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 484 [2022-12-13 13:01:07,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:01:10,354 INFO L130 PetriNetUnfolder]: 1548/2409 cut-off events. [2022-12-13 13:01:10,354 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-13 13:01:10,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4852 conditions, 2409 events. 1548/2409 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 11312 event pairs, 1313 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 4796. Up to 2400 conditions per place. [2022-12-13 13:01:10,371 INFO L137 encePairwiseOnDemand]: 464/484 looper letters, 60 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2022-12-13 13:01:10,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 62 transitions, 254 flow [2022-12-13 13:01:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:01:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:01:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2022-12-13 13:01:10,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4855371900826446 [2022-12-13 13:01:10,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 705 transitions. [2022-12-13 13:01:10,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 705 transitions. [2022-12-13 13:01:10,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:01:10,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 705 transitions. [2022-12-13 13:01:10,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2022-12-13 13:01:10,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2022-12-13 13:01:10,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2022-12-13 13:01:10,401 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 140 flow. Second operand 3 states and 705 transitions. [2022-12-13 13:01:10,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 62 transitions, 254 flow [2022-12-13 13:01:10,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 62 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:01:10,407 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 124 flow [2022-12-13 13:01:10,409 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2022-12-13 13:01:10,413 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, -14 predicate places. [2022-12-13 13:01:10,413 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 124 flow [2022-12-13 13:01:10,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:01:10,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:01:10,414 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 13:01:10,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:10,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:10,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 13:01:10,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:10,615 INFO L85 PathProgramCache]: Analyzing trace with hash 24315, now seen corresponding path program 1 times [2022-12-13 13:01:10,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:01:10,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784540396] [2022-12-13 13:01:10,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:10,616 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 [2022-12-13 13:01:10,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:01:10,617 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:01:10,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:10,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 13:01:10,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:10,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:01:10,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:01:10,780 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 13:01:10,781 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 [2022-12-13 13:01:10,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:01:10,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:01:10,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:01:10,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784540396] [2022-12-13 13:01:10,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784540396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:10,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:10,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:01:10,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949926865] [2022-12-13 13:01:10,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:10,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:01:10,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:01:10,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:01:10,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:01:11,183 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 484 [2022-12-13 13:01:11,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 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) [2022-12-13 13:01:11,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:01:11,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 484 [2022-12-13 13:01:11,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:01:12,727 INFO L130 PetriNetUnfolder]: 1551/2412 cut-off events. [2022-12-13 13:01:12,727 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:01:12,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4867 conditions, 2412 events. 1551/2412 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 11304 event pairs, 1313 based on Foata normal form. 0/1127 useless extension candidates. Maximal degree in co-relation 4830. Up to 2409 conditions per place. [2022-12-13 13:01:12,734 INFO L137 encePairwiseOnDemand]: 476/484 looper letters, 55 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2022-12-13 13:01:12,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 60 transitions, 261 flow [2022-12-13 13:01:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:01:12,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:01:12,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2022-12-13 13:01:12,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46005509641873277 [2022-12-13 13:01:12,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 668 transitions. [2022-12-13 13:01:12,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 668 transitions. [2022-12-13 13:01:12,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:01:12,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 668 transitions. [2022-12-13 13:01:12,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 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) [2022-12-13 13:01:12,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2022-12-13 13:01:12,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2022-12-13 13:01:12,742 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 124 flow. Second operand 3 states and 668 transitions. [2022-12-13 13:01:12,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 60 transitions, 261 flow [2022-12-13 13:01:12,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 60 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:01:12,743 INFO L231 Difference]: Finished difference. Result has 56 places, 57 transitions, 161 flow [2022-12-13 13:01:12,744 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2022-12-13 13:01:12,744 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, -12 predicate places. [2022-12-13 13:01:12,744 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 161 flow [2022-12-13 13:01:12,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 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) [2022-12-13 13:01:12,745 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:01:12,745 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 13:01:12,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:12,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:12,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 13:01:12,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:12,947 INFO L85 PathProgramCache]: Analyzing trace with hash 24316, now seen corresponding path program 1 times [2022-12-13 13:01:12,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:01:12,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734727268] [2022-12-13 13:01:12,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:12,948 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 [2022-12-13 13:01:12,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:01:12,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:01:12,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:13,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 13:01:13,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:13,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:01:13,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:01:13,170 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 13:01:13,171 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 [2022-12-13 13:01:13,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:01:13,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:01:13,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:01:13,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734727268] [2022-12-13 13:01:13,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734727268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:01:13,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:01:13,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:01:13,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24059695] [2022-12-13 13:01:13,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:13,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:01:13,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:01:13,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:01:13,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:01:13,493 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 484 [2022-12-13 13:01:13,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:01:13,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:01:13,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 484 [2022-12-13 13:01:13,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:01:14,490 INFO L130 PetriNetUnfolder]: 1491/2316 cut-off events. [2022-12-13 13:01:14,490 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:01:14,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4692 conditions, 2316 events. 1491/2316 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 11807 event pairs, 249 based on Foata normal form. 3/1090 useless extension candidates. Maximal degree in co-relation 4648. Up to 1822 conditions per place. [2022-12-13 13:01:14,497 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 81 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2022-12-13 13:01:14,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 83 transitions, 379 flow [2022-12-13 13:01:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:01:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:01:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2022-12-13 13:01:14,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47796143250688705 [2022-12-13 13:01:14,499 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 694 transitions. [2022-12-13 13:01:14,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 694 transitions. [2022-12-13 13:01:14,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:01:14,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 694 transitions. [2022-12-13 13:01:14,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 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) [2022-12-13 13:01:14,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2022-12-13 13:01:14,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2022-12-13 13:01:14,503 INFO L175 Difference]: Start difference. First operand has 56 places, 57 transitions, 161 flow. Second operand 3 states and 694 transitions. [2022-12-13 13:01:14,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 83 transitions, 379 flow [2022-12-13 13:01:14,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 83 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:01:14,505 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 162 flow [2022-12-13 13:01:14,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2022-12-13 13:01:14,506 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, -12 predicate places. [2022-12-13 13:01:14,506 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 162 flow [2022-12-13 13:01:14,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:01:14,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:01:14,507 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:01:14,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 13:01:14,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:14,707 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 13:01:14,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:14,708 INFO L85 PathProgramCache]: Analyzing trace with hash 23401124, now seen corresponding path program 1 times [2022-12-13 13:01:14,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:01:14,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449739818] [2022-12-13 13:01:14,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:14,709 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 [2022-12-13 13:01:14,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:01:14,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:01:14,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:15,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 13:01:15,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:16,005 INFO L321 Elim1Store]: treesize reduction 188, result has 31.1 percent of original size [2022-12-13 13:01:16,005 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 [2022-12-13 13:01:16,076 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 [2022-12-13 13:01:16,167 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 [2022-12-13 13:01:16,214 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 [2022-12-13 13:01:16,265 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 [2022-12-13 13:01:16,297 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 [2022-12-13 13:01:18,659 INFO L321 Elim1Store]: treesize reduction 124, result has 29.1 percent of original size [2022-12-13 13:01:18,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 1802 treesize of output 1718 [2022-12-13 13:01:18,728 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 [2022-12-13 13:01:18,739 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 [2022-12-13 13:01:18,826 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 [2022-12-13 13:01:18,925 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 415 treesize of output 193 [2022-12-13 13:01:18,967 INFO L321 Elim1Store]: treesize reduction 67, result has 1.5 percent of original size [2022-12-13 13:01:18,968 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 457 treesize of output 24 [2022-12-13 13:01:19,016 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (select |c_#valid| |c_~#c~0.base|) (_ bv1 1))) (let ((.cse2 (bvadd |c_~#c~0.offset| (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~i~0#1|)))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_~#c~0.base|) .cse2))) (let ((.cse0 (= |c_~#c~0.base| .cse1))) (or (and (not .cse0) (= (_ bv0 1) (bvadd (select |c_#valid| .cse1) (_ bv1 1)))) (and (or (and (exists ((v_DerPreprocessor_13 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_6 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_15 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_8 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store (store (store (store (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_13) |c_~#c~0.base| v_DerPreprocessor_15) .cse1 v_DerPreprocessor_13) |c_~#c~0.base| v_DerPreprocessor_15) .cse1 v_DerPreprocessor_13) |c_~#c~0.base| v_DerPreprocessor_15) .cse1 v_DerPreprocessor_13) |c_~#c~0.base| v_DerPreprocessor_15))) (and (= (select v_prenex_8 .cse2) .cse1) (= v_DerPreprocessor_13 (select .cse3 .cse1)) (= (select (store (store (store (store (store (store (store (store .cse3 .cse1 v_prenex_6) |c_~#c~0.base| v_prenex_8) .cse1 v_prenex_6) |c_~#c~0.base| v_prenex_8) .cse1 v_prenex_6) |c_~#c~0.base| v_prenex_8) .cse1 v_prenex_6) |c_~#c~0.base| v_prenex_8) .cse1) v_prenex_6) (= (select v_DerPreprocessor_15 .cse2) .cse1)))) (exists ((v_DerPreprocessor_11 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_10 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= .cse1 (select v_DerPreprocessor_11 .cse2)) (= v_DerPreprocessor_10 (select (store (store (store (store (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_10) |c_~#c~0.base| v_DerPreprocessor_11) .cse1 v_DerPreprocessor_10) |c_~#c~0.base| v_DerPreprocessor_11) .cse1 v_DerPreprocessor_10) |c_~#c~0.base| v_DerPreprocessor_11) .cse1 v_DerPreprocessor_10) |c_~#c~0.base| v_DerPreprocessor_11) .cse1))))) (exists ((v_DerPreprocessor_15 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= (select v_DerPreprocessor_15 .cse2) .cse1) (exists ((v_DerPreprocessor_14 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_13 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_list_add_~next~0#1.base| (_ BitVec 32))) (let ((.cse7 (store (store (store (store (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_DerPreprocessor_13) |ULTIMATE.start_list_add_~next~0#1.base| v_DerPreprocessor_14) .cse1 v_DerPreprocessor_13) |c_~#c~0.base| v_DerPreprocessor_15) .cse1 v_DerPreprocessor_13) |ULTIMATE.start_list_add_~next~0#1.base| v_DerPreprocessor_14) .cse1 v_DerPreprocessor_13) |c_~#c~0.base| v_DerPreprocessor_15))) (let ((.cse4 (select .cse7 |ULTIMATE.start_list_add_~next~0#1.base|))) (and (exists ((v_prenex_13 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_11 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_12 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store (store (store (store (store (store (store (store |c_#memory_$Pointer$.base| .cse1 v_prenex_13) |ULTIMATE.start_list_add_~next~0#1.base| v_prenex_12) .cse1 v_prenex_13) |c_~#c~0.base| v_prenex_11) .cse1 v_prenex_13) |ULTIMATE.start_list_add_~next~0#1.base| v_prenex_12) .cse1 v_prenex_13) |c_~#c~0.base| v_prenex_11))) (let ((.cse5 (select .cse6 |ULTIMATE.start_list_add_~next~0#1.base|))) (and (= .cse4 .cse5) (= (select v_prenex_11 .cse2) .cse1) (= v_prenex_12 .cse5) (= (select .cse6 .cse1) v_prenex_13))))) (= (select .cse7 .cse1) v_DerPreprocessor_13) (= (select |c_#memory_$Pointer$.base| |ULTIMATE.start_list_add_~next~0#1.base|) .cse4) (exists ((v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_2 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_3 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store (store (store (store (store (store (store (store .cse7 .cse1 v_DerPreprocessor_1) |ULTIMATE.start_list_add_~next~0#1.base| v_DerPreprocessor_2) .cse1 v_DerPreprocessor_1) |c_~#c~0.base| v_DerPreprocessor_3) .cse1 v_DerPreprocessor_1) |ULTIMATE.start_list_add_~next~0#1.base| v_DerPreprocessor_2) .cse1 v_DerPreprocessor_1) |c_~#c~0.base| v_DerPreprocessor_3))) (let ((.cse8 (select .cse9 |ULTIMATE.start_list_add_~next~0#1.base|))) (and (= v_DerPreprocessor_2 .cse8) (= .cse4 .cse8) (= (select .cse9 .cse1) v_DerPreprocessor_1) (= .cse1 (select v_DerPreprocessor_3 .cse2)))))) (= .cse4 v_DerPreprocessor_14)))))))) .cse0))))) (= |c_~#c~0.base| (_ bv1 32))) is different from true [2022-12-13 13:01:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-12-13 13:01:19,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:01:19,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:01:19,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:01:19,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:01:19,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449739818] [2022-12-13 13:01:19,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449739818] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 13:01:19,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:01:19,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2022-12-13 13:01:19,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238167342] [2022-12-13 13:01:19,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:01:19,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:01:19,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:01:19,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:01:19,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2022-12-13 13:01:21,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 484 [2022-12-13 13:01:21,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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) [2022-12-13 13:01:21,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:01:21,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 484 [2022-12-13 13:01:21,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:01:22,802 INFO L130 PetriNetUnfolder]: 1490/2313 cut-off events. [2022-12-13 13:01:22,802 INFO L131 PetriNetUnfolder]: For 238/238 co-relation queries the response was YES. [2022-12-13 13:01:22,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5103 conditions, 2313 events. 1490/2313 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 10766 event pairs, 1257 based on Foata normal form. 0/1171 useless extension candidates. Maximal degree in co-relation 5052. Up to 2308 conditions per place. [2022-12-13 13:01:22,808 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 45 selfloop transitions, 8 changer transitions 0/53 dead transitions. [2022-12-13 13:01:22,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 260 flow [2022-12-13 13:01:22,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:01:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:01:22,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2022-12-13 13:01:22,810 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.35881542699724517 [2022-12-13 13:01:22,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2022-12-13 13:01:22,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2022-12-13 13:01:22,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:01:22,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2022-12-13 13:01:22,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2022-12-13 13:01:22,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2022-12-13 13:01:22,813 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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) [2022-12-13 13:01:22,813 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 162 flow. Second operand 3 states and 521 transitions. [2022-12-13 13:01:22,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 260 flow [2022-12-13 13:01:22,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:01:22,815 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 166 flow [2022-12-13 13:01:22,815 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2022-12-13 13:01:22,815 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, -13 predicate places. [2022-12-13 13:01:22,816 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 166 flow [2022-12-13 13:01:22,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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) [2022-12-13 13:01:22,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:01:22,816 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:01:22,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:23,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:23,017 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2022-12-13 13:01:23,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:01:23,018 INFO L85 PathProgramCache]: Analyzing trace with hash 23401122, now seen corresponding path program 1 times [2022-12-13 13:01:23,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:01:23,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654342267] [2022-12-13 13:01:23,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:01:23,019 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 [2022-12-13 13:01:23,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:01:23,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 13:01:23,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5367bba-2242-458d-b7ff-796853e44dbf/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 13:01:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:01:23,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-13 13:01:23,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:01:27,134 INFO L321 Elim1Store]: treesize reduction 372, result has 28.0 percent of original size [2022-12-13 13:01:27,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 1022 treesize of output 857 [2022-12-13 13:01:35,740 WARN L233 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 122 DAG size of output: 54 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-13 13:01:35,741 INFO L321 Elim1Store]: treesize reduction 372, result has 28.0 percent of original size [2022-12-13 13:01:35,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 248 treesize of output 545 [2022-12-13 13:01:36,102 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 [2022-12-13 13:01:36,387 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 [2022-12-13 13:01:36,729 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 [2022-12-13 13:01:37,035 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 [2022-12-13 13:01:37,349 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 [2022-12-13 13:01:37,674 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 [2022-12-13 13:01:37,879 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 [2022-12-13 13:01:38,018 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 [2022-12-13 13:01:38,341 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 [2022-12-13 13:01:38,614 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 [2022-12-13 13:01:57,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:01:57,798 INFO L321 Elim1Store]: treesize reduction 60, result has 11.8 percent of original size [2022-12-13 13:01:57,799 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 2859 treesize of output 2766 [2022-12-13 13:01:58,169 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 [2022-12-13 13:01:58,474 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 [2022-12-13 13:01:59,132 INFO L321 Elim1Store]: treesize reduction 262, result has 8.7 percent of original size [2022-12-13 13:01:59,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 1332 treesize of output 1286 [2022-12-13 13:02:00,073 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 [2022-12-13 13:02:01,083 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 [2022-12-13 13:02:01,516 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 [2022-12-13 13:02:02,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:02,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:02,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:02,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:02,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:02,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:02,628 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 589 treesize of output 574 [2022-12-13 13:02:02,785 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 [2022-12-13 13:02:03,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:03,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:03,278 INFO L321 Elim1Store]: treesize reduction 231, result has 9.4 percent of original size [2022-12-13 13:02:03,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 535 treesize of output 768 [2022-12-13 13:02:03,791 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 [2022-12-13 13:02:04,330 INFO L217 Elim1Store]: Index analysis took 148 ms [2022-12-13 13:02:04,754 INFO L321 Elim1Store]: treesize reduction 214, result has 21.0 percent of original size [2022-12-13 13:02:04,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2924 treesize of output 2949 [2022-12-13 13:02:12,742 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 [2022-12-13 13:02:15,059 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 [2022-12-13 13:02:15,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:15,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:15,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:15,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:15,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2924 treesize of output 2893 [2022-12-13 13:02:15,920 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 [2022-12-13 13:02:15,977 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 [2022-12-13 13:02:16,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:16,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:16,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:16,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:16,679 INFO L321 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-12-13 13:02:16,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 264 treesize of output 247 [2022-12-13 13:02:16,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-13 13:02:17,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:02:17,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:02:17,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:02:17,691 INFO L321 Elim1Store]: treesize reduction 79, result has 34.2 percent of original size [2022-12-13 13:02:17,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 4365 treesize of output 4144 [2022-12-13 13:02:17,837 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 [2022-12-13 13:02:17,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3771 treesize of output 3765 [2022-12-13 13:02:17,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3765 treesize of output 3759 [2022-12-13 13:02:18,018 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 3759 treesize of output 3753 [2022-12-13 13:02:18,092 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 3753 treesize of output 3747 [2022-12-13 13:02:18,178 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 3747 treesize of output 3741 [2022-12-13 13:02:18,280 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 3741 treesize of output 3735 [2022-12-13 13:02:18,434 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 3735 treesize of output 3729 [2022-12-13 13:02:18,585 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 3729 treesize of output 3723 [2022-12-13 13:02:18,771 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 3723 treesize of output 3717 [2022-12-13 13:02:18,942 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 3717 treesize of output 3711 [2022-12-13 13:02:19,136 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 3711 treesize of output 3705 [2022-12-13 13:02:19,325 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 3705 treesize of output 3699 [2022-12-13 13:02:19,490 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 3699 treesize of output 3693 [2022-12-13 13:02:19,723 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 3693 treesize of output 3687 [2022-12-13 13:02:19,995 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 3687 treesize of output 3681 [2022-12-13 13:02:20,258 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 3681 treesize of output 3675 [2022-12-13 13:02:20,539 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 3675 treesize of output 3669 [2022-12-13 13:02:20,861 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 3669 treesize of output 3663 [2022-12-13 13:02:25,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 13:02:25,957 INFO L321 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2022-12-13 13:02:25,958 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 261 treesize of output 28 [2022-12-13 13:02:25,968 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