./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.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_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:50:05,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:50:05,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:50:05,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:50:05,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:50:05,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:50:05,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:50:05,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:50:05,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:50:05,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:50:05,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:50:05,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:50:05,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:50:05,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:50:05,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:50:05,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:50:05,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:50:05,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:50:05,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:50:05,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:50:05,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:50:05,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:50:05,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:50:05,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:50:05,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:50:05,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:50:05,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:50:05,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:50:05,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:50:05,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:50:05,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:50:05,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:50:05,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:50:05,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:50:05,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:50:05,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:50:05,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:50:05,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:50:05,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:50:05,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:50:05,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:50:05,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 05:50:05,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:50:05,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:50:05,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:50:05,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:50:05,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:50:05,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:50:05,280 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:50:05,280 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:50:05,280 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:50:05,280 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:50:05,281 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:50:05,281 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:50:05,281 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:50:05,281 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:50:05,281 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:50:05,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:50:05,282 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:50:05,282 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:50:05,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 05:50:05,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 05:50:05,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:50:05,283 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:50:05,283 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:50:05,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:50:05,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:50:05,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:50:05,284 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 05:50:05,284 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 05:50:05,284 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 05:50:05,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:50:05,284 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:50:05,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:50:05,285 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:50:05,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:50:05,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:50:05,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:50:05,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:50:05,285 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:50:05,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:50:05,286 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:50:05,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:50:05,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:50:05,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 [2022-12-14 05:50:05,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:50:05,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:50:05,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:50:05,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:50:05,494 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:50:05,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-12-14 05:50:08,104 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:50:08,342 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:50:08,343 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-12-14 05:50:08,361 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/data/f128b4ca7/71c4e4cf8c714f378171f93bcfa23440/FLAGc4297c555 [2022-12-14 05:50:08,376 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/data/f128b4ca7/71c4e4cf8c714f378171f93bcfa23440 [2022-12-14 05:50:08,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:50:08,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:50:08,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:50:08,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:50:08,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:50:08,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:50:08" (1/1) ... [2022-12-14 05:50:08,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441c0325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:08, skipping insertion in model container [2022-12-14 05:50:08,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:50:08" (1/1) ... [2022-12-14 05:50:08,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:50:08,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:50:08,990 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-12-14 05:50:09,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:50:09,039 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-12-14 05:50:09,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@380d2c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:09, skipping insertion in model container [2022-12-14 05:50:09,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:50:09,040 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 05:50:09,041 INFO L158 Benchmark]: Toolchain (without parser) took 660.11ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 89.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 05:50:09,041 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:50:09,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 657.82ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 89.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 05:50:09,043 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 98.6MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 657.82ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 89.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1709]: 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_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:50:10,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:50:10,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:50:10,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:50:10,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:50:10,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:50:10,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:50:10,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:50:10,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:50:10,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:50:10,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:50:10,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:50:10,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:50:10,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:50:10,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:50:10,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:50:10,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:50:10,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:50:10,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:50:10,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:50:10,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:50:10,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:50:10,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:50:10,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:50:10,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:50:10,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:50:10,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:50:10,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:50:10,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:50:10,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:50:10,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:50:10,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:50:10,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:50:10,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:50:10,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:50:10,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:50:10,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:50:10,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:50:10,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:50:10,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:50:10,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:50:10,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 05:50:10,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:50:10,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:50:10,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:50:10,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:50:10,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:50:10,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:50:10,498 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:50:10,498 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:50:10,498 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:50:10,498 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:50:10,498 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:50:10,499 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:50:10,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 05:50:10,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 05:50:10,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:50:10,500 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:50:10,500 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:50:10,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:50:10,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:50:10,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:50:10,500 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 05:50:10,500 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 05:50:10,501 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 05:50:10,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:50:10,501 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:50:10,501 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 05:50:10,501 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 05:50:10,501 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:50:10,502 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:50:10,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:50:10,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 05:50:10,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:50:10,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:50:10,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:50:10,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:50:10,503 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 05:50:10,503 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 05:50:10,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:50:10,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 05:50:10,503 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 [2022-12-14 05:50:10,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:50:10,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:50:10,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:50:10,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:50:10,758 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:50:10,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-12-14 05:50:13,285 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:50:13,514 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:50:13,515 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-12-14 05:50:13,528 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/data/791052450/f7f5a7ff174e4bee908b11710be79bf5/FLAG270dbef9c [2022-12-14 05:50:13,836 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/data/791052450/f7f5a7ff174e4bee908b11710be79bf5 [2022-12-14 05:50:13,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:50:13,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:50:13,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:50:13,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:50:13,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:50:13,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:50:13" (1/1) ... [2022-12-14 05:50:13,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f2029a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:13, skipping insertion in model container [2022-12-14 05:50:13,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:50:13" (1/1) ... [2022-12-14 05:50:13,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:50:13,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:50:14,449 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-12-14 05:50:14,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:50:14,503 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 05:50:14,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:50:14,545 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-12-14 05:50:14,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:50:14,562 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:50:14,589 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-12-14 05:50:14,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:50:14,672 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:50:14,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14 WrapperNode [2022-12-14 05:50:14,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:50:14,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:50:14,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:50:14,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:50:14,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,729 INFO L138 Inliner]: procedures = 486, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 132 [2022-12-14 05:50:14,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:50:14,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:50:14,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:50:14,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:50:14,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,764 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:50:14,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:50:14,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:50:14,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:50:14,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (1/1) ... [2022-12-14 05:50:14,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:50:14,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:50:14,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:50:14,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:50:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:50:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 05:50:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 05:50:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 05:50:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:50:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:50:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:50:14,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:50:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 05:50:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-14 05:50:14,839 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-14 05:50:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:50:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 05:50:14,840 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 05:50:15,118 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:50:15,120 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:50:15,581 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:50:15,589 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:50:15,589 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:50:15,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:50:15 BoogieIcfgContainer [2022-12-14 05:50:15,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:50:15,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:50:15,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:50:15,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:50:15,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:50:13" (1/3) ... [2022-12-14 05:50:15,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a0feaa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:50:15, skipping insertion in model container [2022-12-14 05:50:15,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:14" (2/3) ... [2022-12-14 05:50:15,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a0feaa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:50:15, skipping insertion in model container [2022-12-14 05:50:15,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:50:15" (3/3) ... [2022-12-14 05:50:15,600 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-12-14 05:50:15,618 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:50:15,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2022-12-14 05:50:15,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 05:50:15,689 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 05:50:15,719 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 05:50:15,729 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 240 transitions, 496 flow [2022-12-14 05:50:15,731 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 240 transitions, 496 flow [2022-12-14 05:50:15,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 240 transitions, 496 flow [2022-12-14 05:50:15,794 INFO L130 PetriNetUnfolder]: 10/297 cut-off events. [2022-12-14 05:50:15,794 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 05:50:15,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 297 events. 10/297 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 704 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 171. Up to 4 conditions per place. [2022-12-14 05:50:15,802 INFO L119 LiptonReduction]: Number of co-enabled transitions 6080 [2022-12-14 05:50:45,267 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 119 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:52:17,309 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:52:23,232 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:52:39,013 WARN L233 SmtUtils]: Spent 15.78s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:52:53,481 WARN L233 SmtUtils]: Spent 14.47s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:55:15,873 WARN L233 SmtUtils]: Spent 2.36m on a formula simplification. DAG size of input: 299 DAG size of output: 286 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:56:19,376 WARN L233 SmtUtils]: Spent 1.06m on a formula simplification that was a NOOP. DAG size: 254 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 05:58:54,605 WARN L233 SmtUtils]: Spent 2.59m on a formula simplification. DAG size of input: 302 DAG size of output: 284 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:00:14,355 WARN L233 SmtUtils]: Spent 1.33m on a formula simplification that was a NOOP. DAG size: 262 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:00:40,843 WARN L233 SmtUtils]: Spent 26.48s on a formula simplification. DAG size of input: 252 DAG size of output: 243 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:00:53,176 WARN L233 SmtUtils]: Spent 12.33s on a formula simplification that was a NOOP. DAG size: 222 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:01:41,866 WARN L233 SmtUtils]: Spent 48.69s on a formula simplification. DAG size of input: 255 DAG size of output: 244 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:02:05,506 WARN L233 SmtUtils]: Spent 23.64s on a formula simplification that was a NOOP. DAG size: 233 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:02:05,709 INFO L134 LiptonReduction]: Checked pairs total: 27318 [2022-12-14 06:02:05,709 INFO L136 LiptonReduction]: Total number of compositions: 292 [2022-12-14 06:02:05,714 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 88 places, 85 transitions, 186 flow [2022-12-14 06:02:05,815 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3633 states, 2823 states have (on average 3.575274530641162) internal successors, (10093), 3632 states have internal predecessors, (10093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:05,829 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:02:05,833 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77f70def, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:02:05,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2022-12-14 06:02:05,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 3633 states, 2823 states have (on average 3.575274530641162) internal successors, (10093), 3632 states have internal predecessors, (10093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:05,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 06:02:05,845 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:05,846 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 06:02:05,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:05,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:05,850 INFO L85 PathProgramCache]: Analyzing trace with hash 841, now seen corresponding path program 1 times [2022-12-14 06:02:05,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:05,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687850587] [2022-12-14 06:02:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:05,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:05,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:05,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:05,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 06:02:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:05,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 06:02:05,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:05,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:05,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:05,959 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:05,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687850587] [2022-12-14 06:02:05,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687850587] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:05,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:05,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 06:02:05,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468084959] [2022-12-14 06:02:05,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:05,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:02:05,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:05,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:02:05,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:02:05,993 INFO L87 Difference]: Start difference. First operand has 3633 states, 2823 states have (on average 3.575274530641162) internal successors, (10093), 3632 states have internal predecessors, (10093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:07,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:07,176 INFO L93 Difference]: Finished difference Result 3185 states and 8707 transitions. [2022-12-14 06:02:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:02:07,179 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-12-14 06:02:07,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:07,222 INFO L225 Difference]: With dead ends: 3185 [2022-12-14 06:02:07,222 INFO L226 Difference]: Without dead ends: 3179 [2022-12-14 06:02:07,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:02:07,227 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:07,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 06:02:07,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2022-12-14 06:02:07,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 3179. [2022-12-14 06:02:07,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 2534 states have (on average 3.430544593528019) internal successors, (8693), 3178 states have internal predecessors, (8693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:07,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 8693 transitions. [2022-12-14 06:02:07,369 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 8693 transitions. Word has length 1 [2022-12-14 06:02:07,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:07,370 INFO L495 AbstractCegarLoop]: Abstraction has 3179 states and 8693 transitions. [2022-12-14 06:02:07,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:07,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 8693 transitions. [2022-12-14 06:02:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 06:02:07,370 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:07,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 06:02:07,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:02:07,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:07,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:07,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:07,574 INFO L85 PathProgramCache]: Analyzing trace with hash 27324, now seen corresponding path program 1 times [2022-12-14 06:02:07,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:07,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587320282] [2022-12-14 06:02:07,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:07,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:07,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:07,581 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:07,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 06:02:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:07,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:02:07,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:07,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:07,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:07,836 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:07,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587320282] [2022-12-14 06:02:07,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587320282] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:07,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:07,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:02:07,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91133718] [2022-12-14 06:02:07,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:07,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:07,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:07,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:07,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:07,839 INFO L87 Difference]: Start difference. First operand 3179 states and 8693 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:09,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:09,003 INFO L93 Difference]: Finished difference Result 3191 states and 8704 transitions. [2022-12-14 06:02:09,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:09,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 06:02:09,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:09,022 INFO L225 Difference]: With dead ends: 3191 [2022-12-14 06:02:09,023 INFO L226 Difference]: Without dead ends: 3191 [2022-12-14 06:02:09,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:09,024 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:09,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 40 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 06:02:09,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2022-12-14 06:02:09,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3177. [2022-12-14 06:02:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3177 states, 2534 states have (on average 3.429755327545383) internal successors, (8691), 3176 states have internal predecessors, (8691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 8691 transitions. [2022-12-14 06:02:09,130 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 8691 transitions. Word has length 2 [2022-12-14 06:02:09,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:09,130 INFO L495 AbstractCegarLoop]: Abstraction has 3177 states and 8691 transitions. [2022-12-14 06:02:09,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 8691 transitions. [2022-12-14 06:02:09,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 06:02:09,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:09,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 06:02:09,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 06:02:09,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:09,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:09,332 INFO L85 PathProgramCache]: Analyzing trace with hash 839810, now seen corresponding path program 1 times [2022-12-14 06:02:09,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:09,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917316081] [2022-12-14 06:02:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:09,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:09,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:09,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:09,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 06:02:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:09,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:02:09,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:09,600 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 06:02:09,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 06:02:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:09,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:09,637 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:09,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917316081] [2022-12-14 06:02:09,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917316081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:09,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:09,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:02:09,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370370286] [2022-12-14 06:02:09,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:09,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:09,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:09,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:09,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:09,639 INFO L87 Difference]: Start difference. First operand 3177 states and 8691 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:11,205 INFO L93 Difference]: Finished difference Result 3165 states and 8657 transitions. [2022-12-14 06:02:11,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:11,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 06:02:11,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:11,215 INFO L225 Difference]: With dead ends: 3165 [2022-12-14 06:02:11,216 INFO L226 Difference]: Without dead ends: 3165 [2022-12-14 06:02:11,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:11,216 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 48 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:11,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 13 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 06:02:11,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3165 states. [2022-12-14 06:02:11,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 3153. [2022-12-14 06:02:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 2524 states have (on average 3.425118858954041) internal successors, (8645), 3152 states have internal predecessors, (8645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 8645 transitions. [2022-12-14 06:02:11,311 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 8645 transitions. Word has length 3 [2022-12-14 06:02:11,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:11,311 INFO L495 AbstractCegarLoop]: Abstraction has 3153 states and 8645 transitions. [2022-12-14 06:02:11,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:11,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 8645 transitions. [2022-12-14 06:02:11,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 06:02:11,312 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:11,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 06:02:11,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 06:02:11,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:11,514 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash 839811, now seen corresponding path program 1 times [2022-12-14 06:02:11,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:11,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28654834] [2022-12-14 06:02:11,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:11,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:11,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:11,522 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:11,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 06:02:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:11,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 06:02:11,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:11,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:11,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 06:02:11,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:11,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:11,876 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:11,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28654834] [2022-12-14 06:02:11,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28654834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:11,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:11,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:02:11,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291298862] [2022-12-14 06:02:11,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:11,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:11,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:11,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:11,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:11,878 INFO L87 Difference]: Start difference. First operand 3153 states and 8645 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:12,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:12,876 INFO L93 Difference]: Finished difference Result 3129 states and 8599 transitions. [2022-12-14 06:02:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:12,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 06:02:12,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:12,895 INFO L225 Difference]: With dead ends: 3129 [2022-12-14 06:02:12,896 INFO L226 Difference]: Without dead ends: 3129 [2022-12-14 06:02:12,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:12,896 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:12,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 8 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 06:02:12,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2022-12-14 06:02:12,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 3129. [2022-12-14 06:02:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 2514 states have (on average 3.4204455051710423) internal successors, (8599), 3128 states have internal predecessors, (8599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 8599 transitions. [2022-12-14 06:02:12,963 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 8599 transitions. Word has length 3 [2022-12-14 06:02:12,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:12,964 INFO L495 AbstractCegarLoop]: Abstraction has 3129 states and 8599 transitions. [2022-12-14 06:02:12,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:12,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 8599 transitions. [2022-12-14 06:02:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 06:02:12,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:12,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 06:02:12,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 06:02:13,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:13,166 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:13,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:13,167 INFO L85 PathProgramCache]: Analyzing trace with hash 845387, now seen corresponding path program 1 times [2022-12-14 06:02:13,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:13,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825558663] [2022-12-14 06:02:13,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:13,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:13,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:13,175 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:13,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 06:02:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:13,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:02:13,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:13,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:02:13,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:13,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:13,478 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:13,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825558663] [2022-12-14 06:02:13,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825558663] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:13,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:13,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:02:13,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156812670] [2022-12-14 06:02:13,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:13,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:13,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:13,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:13,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:13,485 INFO L87 Difference]: Start difference. First operand 3129 states and 8599 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:15,058 INFO L93 Difference]: Finished difference Result 2561 states and 6975 transitions. [2022-12-14 06:02:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:15,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 06:02:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:15,071 INFO L225 Difference]: With dead ends: 2561 [2022-12-14 06:02:15,071 INFO L226 Difference]: Without dead ends: 2561 [2022-12-14 06:02:15,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:15,072 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 33 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:15,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 19 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 06:02:15,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-12-14 06:02:15,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2556. [2022-12-14 06:02:15,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2137 states have (on average 3.262517547964436) internal successors, (6972), 2555 states have internal predecessors, (6972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 6972 transitions. [2022-12-14 06:02:15,111 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 6972 transitions. Word has length 3 [2022-12-14 06:02:15,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:15,112 INFO L495 AbstractCegarLoop]: Abstraction has 2556 states and 6972 transitions. [2022-12-14 06:02:15,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:15,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 6972 transitions. [2022-12-14 06:02:15,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 06:02:15,112 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:15,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 06:02:15,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 06:02:15,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:15,314 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:15,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:15,315 INFO L85 PathProgramCache]: Analyzing trace with hash 845310, now seen corresponding path program 1 times [2022-12-14 06:02:15,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:15,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788178089] [2022-12-14 06:02:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:15,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:15,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:15,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:15,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 06:02:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:15,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:02:15,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:15,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:02:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:15,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:15,439 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:15,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788178089] [2022-12-14 06:02:15,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788178089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:15,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:15,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:02:15,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947962239] [2022-12-14 06:02:15,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:15,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:15,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:15,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:15,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:15,441 INFO L87 Difference]: Start difference. First operand 2556 states and 6972 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:16,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:16,444 INFO L93 Difference]: Finished difference Result 2411 states and 6562 transitions. [2022-12-14 06:02:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:16,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 06:02:16,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:16,452 INFO L225 Difference]: With dead ends: 2411 [2022-12-14 06:02:16,452 INFO L226 Difference]: Without dead ends: 2411 [2022-12-14 06:02:16,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:16,453 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 45 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:16,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 13 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 06:02:16,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2411 states. [2022-12-14 06:02:16,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2411 to 2411. [2022-12-14 06:02:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2411 states, 2042 states have (on average 3.2135161606268365) internal successors, (6562), 2410 states have internal predecessors, (6562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:16,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 6562 transitions. [2022-12-14 06:02:16,500 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 6562 transitions. Word has length 3 [2022-12-14 06:02:16,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:16,500 INFO L495 AbstractCegarLoop]: Abstraction has 2411 states and 6562 transitions. [2022-12-14 06:02:16,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:16,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 6562 transitions. [2022-12-14 06:02:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:02:16,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:16,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:02:16,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 06:02:16,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:16,701 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash 26034671, now seen corresponding path program 1 times [2022-12-14 06:02:16,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:16,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796832740] [2022-12-14 06:02:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:16,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:16,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:16,706 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:16,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-14 06:02:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:16,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 06:02:16,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:16,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:02:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:16,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:16,914 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:16,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796832740] [2022-12-14 06:02:16,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796832740] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:16,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:16,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:02:16,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683629560] [2022-12-14 06:02:16,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:16,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:02:16,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:16,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:02:16,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:02:16,916 INFO L87 Difference]: Start difference. First operand 2411 states and 6562 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:18,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:02:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:20,446 INFO L93 Difference]: Finished difference Result 2149 states and 5695 transitions. [2022-12-14 06:02:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:02:20,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 06:02:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:20,455 INFO L225 Difference]: With dead ends: 2149 [2022-12-14 06:02:20,455 INFO L226 Difference]: Without dead ends: 2149 [2022-12-14 06:02:20,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:02:20,456 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 93 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:20,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 18 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 06:02:20,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2022-12-14 06:02:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 2009. [2022-12-14 06:02:20,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 1745 states have (on average 3.118051575931232) internal successors, (5441), 2008 states have internal predecessors, (5441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 5441 transitions. [2022-12-14 06:02:20,499 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 5441 transitions. Word has length 4 [2022-12-14 06:02:20,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:20,500 INFO L495 AbstractCegarLoop]: Abstraction has 2009 states and 5441 transitions. [2022-12-14 06:02:20,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:20,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 5441 transitions. [2022-12-14 06:02:20,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:02:20,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:20,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:02:20,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-14 06:02:20,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:20,701 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:20,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:20,702 INFO L85 PathProgramCache]: Analyzing trace with hash 26034672, now seen corresponding path program 1 times [2022-12-14 06:02:20,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:20,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329936259] [2022-12-14 06:02:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:20,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:20,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:20,704 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:20,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 06:02:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:20,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 06:02:20,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:20,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:02:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:20,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:20,938 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:20,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329936259] [2022-12-14 06:02:20,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329936259] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:20,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:20,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:02:20,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281359540] [2022-12-14 06:02:20,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:20,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:02:20,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:20,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:02:20,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:02:20,939 INFO L87 Difference]: Start difference. First operand 2009 states and 5441 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:23,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:23,524 INFO L93 Difference]: Finished difference Result 1571 states and 4025 transitions. [2022-12-14 06:02:23,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:02:23,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 06:02:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:23,530 INFO L225 Difference]: With dead ends: 1571 [2022-12-14 06:02:23,530 INFO L226 Difference]: Without dead ends: 1567 [2022-12-14 06:02:23,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:02:23,531 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 63 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:23,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 27 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 06:02:23,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-12-14 06:02:23,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2022-12-14 06:02:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1387 states have (on average 2.8918529199711607) internal successors, (4011), 1566 states have internal predecessors, (4011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:23,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 4011 transitions. [2022-12-14 06:02:23,554 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 4011 transitions. Word has length 4 [2022-12-14 06:02:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:23,554 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 4011 transitions. [2022-12-14 06:02:23,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 4011 transitions. [2022-12-14 06:02:23,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 06:02:23,554 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:23,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 06:02:23,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-12-14 06:02:23,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:23,756 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:23,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash 812356473, now seen corresponding path program 1 times [2022-12-14 06:02:23,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:23,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031462912] [2022-12-14 06:02:23,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:23,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:23,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:23,776 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:23,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 06:02:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:23,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 06:02:23,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:23,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 45 [2022-12-14 06:02:24,078 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:02:24,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 93 [2022-12-14 06:02:24,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:24,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:24,101 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:24,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031462912] [2022-12-14 06:02:24,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031462912] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:24,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:24,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:02:24,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236958275] [2022-12-14 06:02:24,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:24,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:24,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:24,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:24,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:24,102 INFO L87 Difference]: Start difference. First operand 1567 states and 4011 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:25,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:02:27,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:27,268 INFO L93 Difference]: Finished difference Result 1878 states and 4855 transitions. [2022-12-14 06:02:27,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:27,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 06:02:27,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:27,273 INFO L225 Difference]: With dead ends: 1878 [2022-12-14 06:02:27,273 INFO L226 Difference]: Without dead ends: 1878 [2022-12-14 06:02:27,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:27,273 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 16 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:27,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 38 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 06:02:27,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-12-14 06:02:27,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1686. [2022-12-14 06:02:27,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1507 states have (on average 2.8752488387524884) internal successors, (4333), 1685 states have internal predecessors, (4333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 4333 transitions. [2022-12-14 06:02:27,296 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 4333 transitions. Word has length 5 [2022-12-14 06:02:27,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:27,296 INFO L495 AbstractCegarLoop]: Abstraction has 1686 states and 4333 transitions. [2022-12-14 06:02:27,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:27,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 4333 transitions. [2022-12-14 06:02:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:02:27,297 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:27,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:02:27,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-12-14 06:02:27,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:27,498 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:27,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:27,500 INFO L85 PathProgramCache]: Analyzing trace with hash -750518505, now seen corresponding path program 1 times [2022-12-14 06:02:27,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:27,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280562457] [2022-12-14 06:02:27,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:27,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:27,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:27,505 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:27,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-14 06:02:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:27,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 06:02:27,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:27,815 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 06:02:27,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 06:02:27,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:27,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:27,872 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:27,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280562457] [2022-12-14 06:02:27,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280562457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:27,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:27,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:02:27,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423171685] [2022-12-14 06:02:27,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:27,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:27,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:27,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:27,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:27,874 INFO L87 Difference]: Start difference. First operand 1686 states and 4333 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:29,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:29,348 INFO L93 Difference]: Finished difference Result 1581 states and 4069 transitions. [2022-12-14 06:02:29,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:29,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 06:02:29,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:29,353 INFO L225 Difference]: With dead ends: 1581 [2022-12-14 06:02:29,353 INFO L226 Difference]: Without dead ends: 1581 [2022-12-14 06:02:29,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:29,354 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:29,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 13 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 06:02:29,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2022-12-14 06:02:29,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1578. [2022-12-14 06:02:29,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1427 states have (on average 2.8493342676944637) internal successors, (4066), 1577 states have internal predecessors, (4066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:29,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 4066 transitions. [2022-12-14 06:02:29,381 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 4066 transitions. Word has length 6 [2022-12-14 06:02:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:29,381 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 4066 transitions. [2022-12-14 06:02:29,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:29,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 4066 transitions. [2022-12-14 06:02:29,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:02:29,382 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:29,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:02:29,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-14 06:02:29,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:29,583 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:29,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:29,584 INFO L85 PathProgramCache]: Analyzing trace with hash -750518504, now seen corresponding path program 1 times [2022-12-14 06:02:29,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:29,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345796237] [2022-12-14 06:02:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:29,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:29,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:29,587 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:29,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-14 06:02:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:29,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 06:02:29,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:29,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:29,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 06:02:29,985 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-14 06:02:29,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-14 06:02:30,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:30,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:30,289 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:30,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345796237] [2022-12-14 06:02:30,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345796237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:30,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:30,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:02:30,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038641104] [2022-12-14 06:02:30,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:30,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:30,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:30,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:30,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:30,291 INFO L87 Difference]: Start difference. First operand 1578 states and 4066 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:32,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:32,143 INFO L93 Difference]: Finished difference Result 1473 states and 3802 transitions. [2022-12-14 06:02:32,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:32,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 06:02:32,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:32,148 INFO L225 Difference]: With dead ends: 1473 [2022-12-14 06:02:32,148 INFO L226 Difference]: Without dead ends: 1473 [2022-12-14 06:02:32,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:32,149 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:32,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 4 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 06:02:32,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2022-12-14 06:02:32,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1470. [2022-12-14 06:02:32,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1347 states have (on average 2.8203414996288045) internal successors, (3799), 1469 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:32,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 3799 transitions. [2022-12-14 06:02:32,179 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 3799 transitions. Word has length 6 [2022-12-14 06:02:32,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:32,179 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 3799 transitions. [2022-12-14 06:02:32,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:32,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 3799 transitions. [2022-12-14 06:02:32,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:02:32,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:32,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:02:32,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-12-14 06:02:32,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:32,381 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:32,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:32,381 INFO L85 PathProgramCache]: Analyzing trace with hash -750518852, now seen corresponding path program 1 times [2022-12-14 06:02:32,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:32,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759061970] [2022-12-14 06:02:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:32,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:32,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:32,383 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:32,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-14 06:02:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:32,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 06:02:32,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:32,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:02:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:32,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:32,549 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:32,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759061970] [2022-12-14 06:02:32,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759061970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:32,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:32,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:02:32,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856307491] [2022-12-14 06:02:32,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:32,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:02:32,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:32,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:02:32,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:02:32,551 INFO L87 Difference]: Start difference. First operand 1470 states and 3799 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:34,968 INFO L93 Difference]: Finished difference Result 1399 states and 3528 transitions. [2022-12-14 06:02:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:02:34,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 06:02:34,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:34,973 INFO L225 Difference]: With dead ends: 1399 [2022-12-14 06:02:34,973 INFO L226 Difference]: Without dead ends: 1399 [2022-12-14 06:02:34,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:02:34,974 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 79 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:34,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 22 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 06:02:34,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2022-12-14 06:02:34,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1275. [2022-12-14 06:02:34,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1176 states have (on average 2.8154761904761907) internal successors, (3311), 1274 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 3311 transitions. [2022-12-14 06:02:34,993 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 3311 transitions. Word has length 6 [2022-12-14 06:02:34,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:34,993 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 3311 transitions. [2022-12-14 06:02:34,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:34,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 3311 transitions. [2022-12-14 06:02:34,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:02:34,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:34,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:02:35,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-12-14 06:02:35,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:35,195 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:35,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:35,196 INFO L85 PathProgramCache]: Analyzing trace with hash -750518851, now seen corresponding path program 1 times [2022-12-14 06:02:35,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:35,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222978623] [2022-12-14 06:02:35,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:35,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:35,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:35,201 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:35,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-14 06:02:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:35,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 06:02:35,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:35,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:02:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:35,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:35,440 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:35,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222978623] [2022-12-14 06:02:35,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222978623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:35,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:35,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:02:35,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559043643] [2022-12-14 06:02:35,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:35,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:02:35,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:35,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:02:35,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:02:35,441 INFO L87 Difference]: Start difference. First operand 1275 states and 3311 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:38,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:38,165 INFO L93 Difference]: Finished difference Result 984 states and 2429 transitions. [2022-12-14 06:02:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:02:38,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 06:02:38,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:38,170 INFO L225 Difference]: With dead ends: 984 [2022-12-14 06:02:38,170 INFO L226 Difference]: Without dead ends: 976 [2022-12-14 06:02:38,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:02:38,171 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 54 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:38,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 30 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 06:02:38,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2022-12-14 06:02:38,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 976. [2022-12-14 06:02:38,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 907 states have (on average 2.6427783902976847) internal successors, (2397), 975 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:38,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 2397 transitions. [2022-12-14 06:02:38,194 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 2397 transitions. Word has length 6 [2022-12-14 06:02:38,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:38,194 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 2397 transitions. [2022-12-14 06:02:38,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:38,194 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 2397 transitions. [2022-12-14 06:02:38,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:02:38,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:38,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:02:38,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-12-14 06:02:38,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:38,396 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:38,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:38,396 INFO L85 PathProgramCache]: Analyzing trace with hash -586752328, now seen corresponding path program 1 times [2022-12-14 06:02:38,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:38,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071268573] [2022-12-14 06:02:38,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:38,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:38,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:38,398 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:38,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-12-14 06:02:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:38,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 06:02:38,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:38,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:02:38,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:02:38,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:02:38,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-12-14 06:02:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:38,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:38,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:38,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071268573] [2022-12-14 06:02:38,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071268573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:38,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:38,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:02:38,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197750209] [2022-12-14 06:02:38,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:38,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:38,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:38,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:38,682 INFO L87 Difference]: Start difference. First operand 976 states and 2397 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:40,893 INFO L93 Difference]: Finished difference Result 1099 states and 2720 transitions. [2022-12-14 06:02:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:02:40,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 06:02:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:40,896 INFO L225 Difference]: With dead ends: 1099 [2022-12-14 06:02:40,896 INFO L226 Difference]: Without dead ends: 1099 [2022-12-14 06:02:40,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:40,896 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:40,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 06:02:40,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2022-12-14 06:02:40,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1035. [2022-12-14 06:02:40,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 967 states have (on average 2.672182006204757) internal successors, (2584), 1034 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:40,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 2584 transitions. [2022-12-14 06:02:40,908 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 2584 transitions. Word has length 6 [2022-12-14 06:02:40,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:40,909 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 2584 transitions. [2022-12-14 06:02:40,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:40,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 2584 transitions. [2022-12-14 06:02:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:02:40,909 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:40,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:40,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-12-14 06:02:41,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:41,110 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash 306247138, now seen corresponding path program 1 times [2022-12-14 06:02:41,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:41,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007717425] [2022-12-14 06:02:41,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:41,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:41,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:41,116 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:41,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-12-14 06:02:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:41,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 06:02:41,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:41,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:02:41,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:02:41,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:41,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 06:02:41,464 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 06:02:41,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 06:02:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:41,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:41,514 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:41,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007717425] [2022-12-14 06:02:41,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007717425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:41,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:41,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:02:41,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570210788] [2022-12-14 06:02:41,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:41,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:02:41,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:41,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:02:41,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:02:41,520 INFO L87 Difference]: Start difference. First operand 1035 states and 2584 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:42,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:02:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:45,115 INFO L93 Difference]: Finished difference Result 1173 states and 2848 transitions. [2022-12-14 06:02:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:02:45,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:02:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:45,118 INFO L225 Difference]: With dead ends: 1173 [2022-12-14 06:02:45,118 INFO L226 Difference]: Without dead ends: 1173 [2022-12-14 06:02:45,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:02:45,118 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 152 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:45,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 16 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 06:02:45,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2022-12-14 06:02:45,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1104. [2022-12-14 06:02:45,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 1036 states have (on average 2.6476833976833976) internal successors, (2743), 1103 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 2743 transitions. [2022-12-14 06:02:45,134 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 2743 transitions. Word has length 8 [2022-12-14 06:02:45,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:45,134 INFO L495 AbstractCegarLoop]: Abstraction has 1104 states and 2743 transitions. [2022-12-14 06:02:45,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 2743 transitions. [2022-12-14 06:02:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:02:45,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:45,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:45,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-12-14 06:02:45,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:45,336 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:45,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:45,337 INFO L85 PathProgramCache]: Analyzing trace with hash 306247630, now seen corresponding path program 1 times [2022-12-14 06:02:45,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:45,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89905887] [2022-12-14 06:02:45,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:45,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:45,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:45,341 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:45,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-12-14 06:02:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:45,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 06:02:45,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:45,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:02:45,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:02:45,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:45,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 06:02:45,677 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 06:02:45,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 06:02:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:45,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:45,724 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:45,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89905887] [2022-12-14 06:02:45,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89905887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:45,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:45,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:02:45,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607902604] [2022-12-14 06:02:45,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:45,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:02:45,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:45,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:02:45,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:02:45,726 INFO L87 Difference]: Start difference. First operand 1104 states and 2743 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:48,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:48,540 INFO L93 Difference]: Finished difference Result 1307 states and 3146 transitions. [2022-12-14 06:02:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:02:48,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:02:48,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:48,543 INFO L225 Difference]: With dead ends: 1307 [2022-12-14 06:02:48,543 INFO L226 Difference]: Without dead ends: 1307 [2022-12-14 06:02:48,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:02:48,543 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 201 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:48,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 13 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 06:02:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2022-12-14 06:02:48,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1176. [2022-12-14 06:02:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 1108 states have (on average 2.6326714801444044) internal successors, (2917), 1175 states have internal predecessors, (2917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:48,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 2917 transitions. [2022-12-14 06:02:48,558 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 2917 transitions. Word has length 8 [2022-12-14 06:02:48,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:48,558 INFO L495 AbstractCegarLoop]: Abstraction has 1176 states and 2917 transitions. [2022-12-14 06:02:48,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 2917 transitions. [2022-12-14 06:02:48,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:02:48,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:48,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:48,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-12-14 06:02:48,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:48,760 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:48,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:48,761 INFO L85 PathProgramCache]: Analyzing trace with hash 306206218, now seen corresponding path program 2 times [2022-12-14 06:02:48,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:48,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083205686] [2022-12-14 06:02:48,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:02:48,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:48,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:48,766 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:48,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-12-14 06:02:48,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 06:02:48,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:02:49,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 06:02:49,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:49,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:02:49,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:02:49,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:49,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 06:02:49,159 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 06:02:49,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 06:02:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:49,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:49,188 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:49,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083205686] [2022-12-14 06:02:49,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083205686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:49,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:49,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:02:49,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7320683] [2022-12-14 06:02:49,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:49,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:02:49,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:49,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:02:49,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:02:49,190 INFO L87 Difference]: Start difference. First operand 1176 states and 2917 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:52,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:52,617 INFO L93 Difference]: Finished difference Result 1333 states and 3250 transitions. [2022-12-14 06:02:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:02:52,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:02:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:52,620 INFO L225 Difference]: With dead ends: 1333 [2022-12-14 06:02:52,620 INFO L226 Difference]: Without dead ends: 1333 [2022-12-14 06:02:52,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:02:52,621 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 101 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:52,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 13 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 06:02:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2022-12-14 06:02:52,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1002. [2022-12-14 06:02:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 952 states have (on average 2.6355042016806722) internal successors, (2509), 1001 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:52,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 2509 transitions. [2022-12-14 06:02:52,634 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 2509 transitions. Word has length 8 [2022-12-14 06:02:52,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:52,634 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 2509 transitions. [2022-12-14 06:02:52,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:52,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 2509 transitions. [2022-12-14 06:02:52,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:02:52,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:52,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:52,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-12-14 06:02:52,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:52,837 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:52,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:52,838 INFO L85 PathProgramCache]: Analyzing trace with hash 306225310, now seen corresponding path program 2 times [2022-12-14 06:02:52,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:52,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105961399] [2022-12-14 06:02:52,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:02:52,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:52,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:52,843 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:52,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-12-14 06:02:53,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 06:02:53,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:02:53,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 06:02:53,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:53,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:02:53,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:02:53,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:02:53,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 06:02:53,262 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 06:02:53,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 06:02:53,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:53,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:53,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:53,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105961399] [2022-12-14 06:02:53,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105961399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:53,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:53,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:02:53,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859638783] [2022-12-14 06:02:53,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:53,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:02:53,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:53,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:02:53,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:02:53,294 INFO L87 Difference]: Start difference. First operand 1002 states and 2509 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:56,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:56,383 INFO L93 Difference]: Finished difference Result 1210 states and 2962 transitions. [2022-12-14 06:02:56,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:02:56,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:02:56,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:56,387 INFO L225 Difference]: With dead ends: 1210 [2022-12-14 06:02:56,388 INFO L226 Difference]: Without dead ends: 1210 [2022-12-14 06:02:56,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:02:56,388 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 95 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:56,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 11 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 06:02:56,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2022-12-14 06:02:56,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 930. [2022-12-14 06:02:56,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 883 states have (on average 2.65118912797282) internal successors, (2341), 929 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:56,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 2341 transitions. [2022-12-14 06:02:56,402 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 2341 transitions. Word has length 8 [2022-12-14 06:02:56,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:56,402 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 2341 transitions. [2022-12-14 06:02:56,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:56,402 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 2341 transitions. [2022-12-14 06:02:56,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:02:56,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:56,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:56,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-12-14 06:02:56,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:56,604 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:56,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:56,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1228245898, now seen corresponding path program 1 times [2022-12-14 06:02:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:56,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638581194] [2022-12-14 06:02:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:56,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:56,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:56,610 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:56,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-12-14 06:02:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:56,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 06:02:56,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:56,976 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_483| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_483| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_483|)))) is different from true [2022-12-14 06:02:56,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:56,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:56,977 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:56,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638581194] [2022-12-14 06:02:56,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638581194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:56,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:56,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:02:56,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848069337] [2022-12-14 06:02:56,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:56,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:02:56,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:56,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:02:56,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-12-14 06:02:56,978 INFO L87 Difference]: Start difference. First operand 930 states and 2341 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:58,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:02:58,529 INFO L93 Difference]: Finished difference Result 951 states and 2393 transitions. [2022-12-14 06:02:58,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:02:58,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:02:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:02:58,531 INFO L225 Difference]: With dead ends: 951 [2022-12-14 06:02:58,531 INFO L226 Difference]: Without dead ends: 938 [2022-12-14 06:02:58,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-12-14 06:02:58,532 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 16 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:02:58,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 1 Unknown, 88 Unchecked, 1.5s Time] [2022-12-14 06:02:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-12-14 06:02:58,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2022-12-14 06:02:58,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 891 states have (on average 2.6576879910213242) internal successors, (2368), 937 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:58,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 2368 transitions. [2022-12-14 06:02:58,542 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 2368 transitions. Word has length 8 [2022-12-14 06:02:58,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:02:58,542 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 2368 transitions. [2022-12-14 06:02:58,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:02:58,542 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 2368 transitions. [2022-12-14 06:02:58,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:02:58,543 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:02:58,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:02:58,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-12-14 06:02:58,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:58,744 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:02:58,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:02:58,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1334714751, now seen corresponding path program 1 times [2022-12-14 06:02:58,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:02:58,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80699163] [2022-12-14 06:02:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:02:58,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:02:58,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:02:58,750 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:02:58,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-12-14 06:02:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:02:58,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:02:58,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:02:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:02:58,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:02:58,973 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:02:58,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80699163] [2022-12-14 06:02:58,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80699163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:02:58,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:02:58,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:02:58,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261868786] [2022-12-14 06:02:58,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:02:58,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:02:58,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:02:58,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:02:58,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:02:58,974 INFO L87 Difference]: Start difference. First operand 938 states and 2368 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:00,103 INFO L93 Difference]: Finished difference Result 207 states and 446 transitions. [2022-12-14 06:03:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:03:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 06:03:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:00,104 INFO L225 Difference]: With dead ends: 207 [2022-12-14 06:03:00,104 INFO L226 Difference]: Without dead ends: 207 [2022-12-14 06:03:00,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:03:00,105 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 36 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:00,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 16 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 06:03:00,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-12-14 06:03:00,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-12-14 06:03:00,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 193 states have (on average 2.3108808290155443) internal successors, (446), 206 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:00,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 446 transitions. [2022-12-14 06:03:00,109 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 446 transitions. Word has length 11 [2022-12-14 06:03:00,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:00,109 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 446 transitions. [2022-12-14 06:03:00,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:00,109 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 446 transitions. [2022-12-14 06:03:00,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 06:03:00,110 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:00,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:00,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-12-14 06:03:00,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:00,311 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:00,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1804536692, now seen corresponding path program 1 times [2022-12-14 06:03:00,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:00,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897692932] [2022-12-14 06:03:00,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:00,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:00,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:00,315 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:00,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-12-14 06:03:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:00,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:03:00,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:00,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:03:00,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:00,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:00,551 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:00,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897692932] [2022-12-14 06:03:00,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897692932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:00,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:00,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:03:00,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204254865] [2022-12-14 06:03:00,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:00,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:03:00,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:00,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:03:00,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:03:00,552 INFO L87 Difference]: Start difference. First operand 207 states and 446 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:01,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:01,985 INFO L93 Difference]: Finished difference Result 200 states and 434 transitions. [2022-12-14 06:03:01,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:03:01,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 06:03:01,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:01,986 INFO L225 Difference]: With dead ends: 200 [2022-12-14 06:03:01,986 INFO L226 Difference]: Without dead ends: 200 [2022-12-14 06:03:01,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:03:01,987 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:01,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 06:03:01,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-12-14 06:03:01,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-12-14 06:03:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 188 states have (on average 2.3085106382978724) internal successors, (434), 199 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 434 transitions. [2022-12-14 06:03:01,990 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 434 transitions. Word has length 14 [2022-12-14 06:03:01,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:01,990 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 434 transitions. [2022-12-14 06:03:01,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 434 transitions. [2022-12-14 06:03:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 06:03:01,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:01,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:02,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-12-14 06:03:02,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:02,191 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:02,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:02,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1804536691, now seen corresponding path program 1 times [2022-12-14 06:03:02,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:02,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629512688] [2022-12-14 06:03:02,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:02,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:02,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:02,199 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:02,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-12-14 06:03:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:02,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:03:02,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:02,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:03:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:02,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:02,458 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:02,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629512688] [2022-12-14 06:03:02,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629512688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:02,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:02,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:03:02,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021484163] [2022-12-14 06:03:02,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:02,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:03:02,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:02,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:03:02,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:03:02,459 INFO L87 Difference]: Start difference. First operand 200 states and 434 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:04,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:04,114 INFO L93 Difference]: Finished difference Result 193 states and 422 transitions. [2022-12-14 06:03:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:03:04,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 06:03:04,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:04,115 INFO L225 Difference]: With dead ends: 193 [2022-12-14 06:03:04,115 INFO L226 Difference]: Without dead ends: 193 [2022-12-14 06:03:04,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:03:04,116 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:04,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 06:03:04,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-12-14 06:03:04,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2022-12-14 06:03:04,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 2.3060109289617485) internal successors, (422), 192 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 422 transitions. [2022-12-14 06:03:04,120 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 422 transitions. Word has length 14 [2022-12-14 06:03:04,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:04,121 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 422 transitions. [2022-12-14 06:03:04,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:04,121 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 422 transitions. [2022-12-14 06:03:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:03:04,121 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:04,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:04,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-12-14 06:03:04,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:04,322 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:04,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:04,323 INFO L85 PathProgramCache]: Analyzing trace with hash -634350011, now seen corresponding path program 1 times [2022-12-14 06:03:04,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:04,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007532449] [2022-12-14 06:03:04,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:04,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:04,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:04,329 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:04,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-12-14 06:03:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:04,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 06:03:04,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:04,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:03:04,968 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 06:03:04,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 06:03:05,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:05,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:05,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:05,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:05,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:05,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-12-14 06:03:05,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 29 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 89 [2022-12-14 06:03:05,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2022-12-14 06:03:05,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:05,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:05,592 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:05,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007532449] [2022-12-14 06:03:05,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007532449] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:05,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:05,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:03:05,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005360014] [2022-12-14 06:03:05,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:05,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 06:03:05,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:05,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 06:03:05,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:03:05,593 INFO L87 Difference]: Start difference. First operand 193 states and 422 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:07,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:03:10,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:10,018 INFO L93 Difference]: Finished difference Result 315 states and 677 transitions. [2022-12-14 06:03:10,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:03:10,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:03:10,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:10,019 INFO L225 Difference]: With dead ends: 315 [2022-12-14 06:03:10,020 INFO L226 Difference]: Without dead ends: 315 [2022-12-14 06:03:10,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:03:10,020 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 66 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:10,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 5 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 06:03:10,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-12-14 06:03:10,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 226. [2022-12-14 06:03:10,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 218 states have (on average 2.2477064220183487) internal successors, (490), 225 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:10,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 490 transitions. [2022-12-14 06:03:10,026 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 490 transitions. Word has length 22 [2022-12-14 06:03:10,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:10,026 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 490 transitions. [2022-12-14 06:03:10,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:10,026 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 490 transitions. [2022-12-14 06:03:10,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:03:10,027 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:10,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:10,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-12-14 06:03:10,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:10,228 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:10,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:10,229 INFO L85 PathProgramCache]: Analyzing trace with hash -634349976, now seen corresponding path program 1 times [2022-12-14 06:03:10,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:10,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653417110] [2022-12-14 06:03:10,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:10,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:10,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:10,235 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:10,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-12-14 06:03:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:10,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 06:03:10,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:11,039 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 06:03:11,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 43 [2022-12-14 06:03:11,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:11,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:11,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:11,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:11,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:11,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:11,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:11,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 77 [2022-12-14 06:03:11,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:11,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:03:11,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:11,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:03:11,834 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-12-14 06:03:11,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 06:03:12,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:12,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:12,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:12,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:12,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 95 [2022-12-14 06:03:12,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 85 [2022-12-14 06:03:13,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 121 [2022-12-14 06:03:13,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 121 [2022-12-14 06:03:14,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 219 [2022-12-14 06:03:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:14,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:14,130 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:14,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653417110] [2022-12-14 06:03:14,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653417110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:14,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:14,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:03:14,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769782613] [2022-12-14 06:03:14,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:14,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:03:14,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:03:14,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:03:14,132 INFO L87 Difference]: Start difference. First operand 226 states and 490 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:15,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:03:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:23,064 INFO L93 Difference]: Finished difference Result 283 states and 608 transitions. [2022-12-14 06:03:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:03:23,066 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:03:23,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:23,066 INFO L225 Difference]: With dead ends: 283 [2022-12-14 06:03:23,066 INFO L226 Difference]: Without dead ends: 283 [2022-12-14 06:03:23,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-12-14 06:03:23,067 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:23,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 11 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 06:03:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-12-14 06:03:23,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 263. [2022-12-14 06:03:23,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 255 states have (on average 2.203921568627451) internal successors, (562), 262 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:23,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 562 transitions. [2022-12-14 06:03:23,070 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 562 transitions. Word has length 22 [2022-12-14 06:03:23,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:23,070 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 562 transitions. [2022-12-14 06:03:23,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 562 transitions. [2022-12-14 06:03:23,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:03:23,071 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:23,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:23,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-12-14 06:03:23,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:23,272 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:23,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:23,273 INFO L85 PathProgramCache]: Analyzing trace with hash -634349975, now seen corresponding path program 1 times [2022-12-14 06:03:23,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:23,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962860570] [2022-12-14 06:03:23,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:23,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:23,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:23,277 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:23,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-12-14 06:03:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:23,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 06:03:23,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:23,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:23,844 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:23,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962860570] [2022-12-14 06:03:23,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962860570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:23,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:23,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:03:23,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741511875] [2022-12-14 06:03:23,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:23,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:03:23,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:23,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:03:23,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:03:23,846 INFO L87 Difference]: Start difference. First operand 263 states and 562 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:26,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:26,005 INFO L93 Difference]: Finished difference Result 336 states and 701 transitions. [2022-12-14 06:03:26,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:03:26,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:03:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:26,006 INFO L225 Difference]: With dead ends: 336 [2022-12-14 06:03:26,007 INFO L226 Difference]: Without dead ends: 336 [2022-12-14 06:03:26,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:03:26,007 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 86 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:26,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 7 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 06:03:26,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-12-14 06:03:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 318. [2022-12-14 06:03:26,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 313 states have (on average 2.1150159744408947) internal successors, (662), 317 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 662 transitions. [2022-12-14 06:03:26,013 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 662 transitions. Word has length 22 [2022-12-14 06:03:26,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:26,014 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 662 transitions. [2022-12-14 06:03:26,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:26,014 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 662 transitions. [2022-12-14 06:03:26,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:03:26,015 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:26,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:26,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-12-14 06:03:26,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:26,216 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:26,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:26,217 INFO L85 PathProgramCache]: Analyzing trace with hash 433624829, now seen corresponding path program 2 times [2022-12-14 06:03:26,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:26,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175106846] [2022-12-14 06:03:26,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:03:26,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:26,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:26,221 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:26,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-12-14 06:03:26,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 06:03:26,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:03:26,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 06:03:26,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:26,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-12-14 06:03:26,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:26,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:26,630 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:26,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175106846] [2022-12-14 06:03:26,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175106846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:26,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:26,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:03:26,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548940188] [2022-12-14 06:03:26,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:26,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:03:26,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:26,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:03:26,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:03:26,631 INFO L87 Difference]: Start difference. First operand 318 states and 662 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:27,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:27,677 INFO L93 Difference]: Finished difference Result 193 states and 308 transitions. [2022-12-14 06:03:27,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:03:27,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:03:27,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:27,678 INFO L225 Difference]: With dead ends: 193 [2022-12-14 06:03:27,678 INFO L226 Difference]: Without dead ends: 193 [2022-12-14 06:03:27,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:03:27,679 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 29 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:27,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 10 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 06:03:27,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-12-14 06:03:27,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 191. [2022-12-14 06:03:27,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.6397849462365592) internal successors, (305), 190 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:27,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 305 transitions. [2022-12-14 06:03:27,683 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 305 transitions. Word has length 22 [2022-12-14 06:03:27,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:27,683 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 305 transitions. [2022-12-14 06:03:27,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 305 transitions. [2022-12-14 06:03:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:03:27,684 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:27,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:27,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-12-14 06:03:27,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:27,885 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:27,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:27,887 INFO L85 PathProgramCache]: Analyzing trace with hash -995600593, now seen corresponding path program 3 times [2022-12-14 06:03:27,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:27,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799912468] [2022-12-14 06:03:27,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:03:27,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:27,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:27,895 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:27,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-12-14 06:03:28,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 06:03:28,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:03:28,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 06:03:28,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:28,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2022-12-14 06:03:28,679 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:03:28,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 85 [2022-12-14 06:03:28,779 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:03:28,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 43 [2022-12-14 06:03:28,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-14 06:03:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:28,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:28,975 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:28,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799912468] [2022-12-14 06:03:28,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799912468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:28,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:28,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:03:28,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668506732] [2022-12-14 06:03:28,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:28,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 06:03:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:28,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 06:03:28,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:03:28,976 INFO L87 Difference]: Start difference. First operand 191 states and 305 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:31,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:31,559 INFO L93 Difference]: Finished difference Result 208 states and 328 transitions. [2022-12-14 06:03:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:03:31,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:03:31,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:31,560 INFO L225 Difference]: With dead ends: 208 [2022-12-14 06:03:31,560 INFO L226 Difference]: Without dead ends: 208 [2022-12-14 06:03:31,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:03:31,561 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 70 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:31,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 12 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 06:03:31,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-14 06:03:31,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 187. [2022-12-14 06:03:31,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.6428571428571428) internal successors, (299), 186 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 299 transitions. [2022-12-14 06:03:31,564 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 299 transitions. Word has length 22 [2022-12-14 06:03:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:31,564 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 299 transitions. [2022-12-14 06:03:31,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 299 transitions. [2022-12-14 06:03:31,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:03:31,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:31,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:31,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-12-14 06:03:31,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:31,766 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:31,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:31,768 INFO L85 PathProgramCache]: Analyzing trace with hash -995600558, now seen corresponding path program 2 times [2022-12-14 06:03:31,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:31,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301294508] [2022-12-14 06:03:31,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:03:31,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:31,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:31,771 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:31,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-12-14 06:03:32,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 06:03:32,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:03:32,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 66 conjunts are in the unsatisfiable core [2022-12-14 06:03:32,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:32,308 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 06:03:32,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 43 [2022-12-14 06:03:32,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:32,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:32,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:32,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:32,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:32,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:32,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:32,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 77 [2022-12-14 06:03:32,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:32,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:03:32,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:32,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:03:33,141 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-12-14 06:03:33,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 06:03:33,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:33,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:33,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:33,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:33,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 95 [2022-12-14 06:03:34,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 85 [2022-12-14 06:03:34,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:34,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 121 [2022-12-14 06:03:35,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 121 [2022-12-14 06:03:35,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 219 [2022-12-14 06:03:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:35,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:35,542 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:35,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301294508] [2022-12-14 06:03:35,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301294508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:35,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:35,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:03:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420320584] [2022-12-14 06:03:35,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:35,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:03:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:03:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:03:35,543 INFO L87 Difference]: Start difference. First operand 187 states and 299 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:44,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:44,497 INFO L93 Difference]: Finished difference Result 226 states and 362 transitions. [2022-12-14 06:03:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:03:44,499 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:03:44,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:44,499 INFO L225 Difference]: With dead ends: 226 [2022-12-14 06:03:44,499 INFO L226 Difference]: Without dead ends: 226 [2022-12-14 06:03:44,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-12-14 06:03:44,500 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:44,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 06:03:44,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-12-14 06:03:44,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 220. [2022-12-14 06:03:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.655813953488372) internal successors, (356), 219 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 356 transitions. [2022-12-14 06:03:44,502 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 356 transitions. Word has length 22 [2022-12-14 06:03:44,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:44,502 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 356 transitions. [2022-12-14 06:03:44,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:44,502 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 356 transitions. [2022-12-14 06:03:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:03:44,503 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:44,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:44,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-12-14 06:03:44,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:44,704 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:44,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:44,705 INFO L85 PathProgramCache]: Analyzing trace with hash 419401128, now seen corresponding path program 3 times [2022-12-14 06:03:44,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:44,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900946806] [2022-12-14 06:03:44,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:03:44,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:44,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:44,710 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:44,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-12-14 06:03:45,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 06:03:45,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:03:45,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 06:03:45,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:45,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 77 [2022-12-14 06:03:45,301 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:03:45,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 69 [2022-12-14 06:03:45,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 25 [2022-12-14 06:03:45,500 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 06:03:45,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 43 [2022-12-14 06:03:45,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:45,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:03:46,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:46,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:46,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:46,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:03:46,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 95 [2022-12-14 06:03:46,872 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-12-14 06:03:46,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 06:03:47,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 85 [2022-12-14 06:03:47,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 121 [2022-12-14 06:03:48,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 121 [2022-12-14 06:03:48,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 219 [2022-12-14 06:03:48,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:03:48,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:03:48,547 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:03:48,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900946806] [2022-12-14 06:03:48,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900946806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:03:48,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:03:48,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:03:48,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141641661] [2022-12-14 06:03:48,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:03:48,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:03:48,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:03:48,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:03:48,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:03:48,549 INFO L87 Difference]: Start difference. First operand 220 states and 356 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:49,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:03:51,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:03:58,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:03:58,895 INFO L93 Difference]: Finished difference Result 240 states and 383 transitions. [2022-12-14 06:03:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:03:58,896 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:03:58,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:03:58,897 INFO L225 Difference]: With dead ends: 240 [2022-12-14 06:03:58,897 INFO L226 Difference]: Without dead ends: 240 [2022-12-14 06:03:58,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:03:58,897 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:03:58,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 8 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-12-14 06:03:58,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-12-14 06:03:58,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 216. [2022-12-14 06:03:58,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.6587677725118484) internal successors, (350), 215 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 350 transitions. [2022-12-14 06:03:58,900 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 350 transitions. Word has length 22 [2022-12-14 06:03:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:03:58,900 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 350 transitions. [2022-12-14 06:03:58,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:03:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 350 transitions. [2022-12-14 06:03:58,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:03:58,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:58,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:58,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-12-14 06:03:59,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:59,102 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:03:59,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:59,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1453232680, now seen corresponding path program 4 times [2022-12-14 06:03:59,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:03:59,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858836147] [2022-12-14 06:03:59,105 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 06:03:59,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:03:59,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:03:59,106 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:03:59,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-12-14 06:03:59,719 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 06:03:59,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:03:59,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 06:03:59,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:59,848 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 06:03:59,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 43 [2022-12-14 06:03:59,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:59,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:59,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:59,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:59,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:59,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:59,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:59,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 77 [2022-12-14 06:03:59,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:03:59,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:04:00,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:04:00,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:00,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:00,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:00,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:00,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 95 [2022-12-14 06:04:01,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 85 [2022-12-14 06:04:01,537 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-12-14 06:04:01,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 06:04:01,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 121 [2022-12-14 06:04:02,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 121 [2022-12-14 06:04:02,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 219 [2022-12-14 06:04:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:04:02,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:04:02,656 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:04:02,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858836147] [2022-12-14 06:04:02,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858836147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:04:02,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:04:02,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:04:02,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789082167] [2022-12-14 06:04:02,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:04:02,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:04:02,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:04:02,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:04:02,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:04:02,658 INFO L87 Difference]: Start difference. First operand 216 states and 350 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:07,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:04:10,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:10,738 INFO L93 Difference]: Finished difference Result 222 states and 358 transitions. [2022-12-14 06:04:10,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:04:10,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:04:10,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:10,740 INFO L225 Difference]: With dead ends: 222 [2022-12-14 06:04:10,740 INFO L226 Difference]: Without dead ends: 222 [2022-12-14 06:04:10,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-12-14 06:04:10,740 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:10,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 06:04:10,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-12-14 06:04:10,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-12-14 06:04:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.6497695852534562) internal successors, (358), 221 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 358 transitions. [2022-12-14 06:04:10,743 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 358 transitions. Word has length 22 [2022-12-14 06:04:10,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:10,743 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 358 transitions. [2022-12-14 06:04:10,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:10,743 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 358 transitions. [2022-12-14 06:04:10,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:04:10,744 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:04:10,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:04:10,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2022-12-14 06:04:10,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:10,944 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:04:10,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:04:10,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1453232681, now seen corresponding path program 2 times [2022-12-14 06:04:10,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:04:10,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816674202] [2022-12-14 06:04:10,948 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:04:10,948 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 [2022-12-14 06:04:10,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:04:10,950 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:04:10,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-12-14 06:04:11,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 06:04:11,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:04:11,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 06:04:11,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:11,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:04:11,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:04:11,573 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:04:11,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816674202] [2022-12-14 06:04:11,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816674202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:04:11,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:04:11,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:04:11,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399334365] [2022-12-14 06:04:11,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:04:11,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:04:11,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:04:11,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:04:11,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:04:11,574 INFO L87 Difference]: Start difference. First operand 222 states and 358 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:12,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:12,954 INFO L93 Difference]: Finished difference Result 268 states and 428 transitions. [2022-12-14 06:04:12,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:04:12,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:04:12,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:12,956 INFO L225 Difference]: With dead ends: 268 [2022-12-14 06:04:12,956 INFO L226 Difference]: Without dead ends: 268 [2022-12-14 06:04:12,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:04:12,956 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 89 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:12,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 7 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 06:04:12,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-12-14 06:04:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 212. [2022-12-14 06:04:12,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.6570048309178744) internal successors, (343), 211 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 343 transitions. [2022-12-14 06:04:12,959 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 343 transitions. Word has length 22 [2022-12-14 06:04:12,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:12,959 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 343 transitions. [2022-12-14 06:04:12,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 343 transitions. [2022-12-14 06:04:12,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:04:12,960 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:04:12,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:04:12,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-12-14 06:04:13,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:13,161 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:04:13,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:04:13,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1557754501, now seen corresponding path program 4 times [2022-12-14 06:04:13,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:04:13,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550303140] [2022-12-14 06:04:13,164 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 06:04:13,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:13,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:04:13,166 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:04:13,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-12-14 06:04:13,585 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 06:04:13,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:04:13,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 06:04:13,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:13,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:13,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:13,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:13,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:13,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:13,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-12-14 06:04:14,030 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:04:14,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 89 [2022-12-14 06:04:14,162 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:04:14,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 47 [2022-12-14 06:04:14,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2022-12-14 06:04:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:04:14,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:04:14,308 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:04:14,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550303140] [2022-12-14 06:04:14,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550303140] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:04:14,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:04:14,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:04:14,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883319232] [2022-12-14 06:04:14,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:04:14,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 06:04:14,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:04:14,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 06:04:14,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:04:14,309 INFO L87 Difference]: Start difference. First operand 212 states and 343 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:17,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:17,575 INFO L93 Difference]: Finished difference Result 253 states and 408 transitions. [2022-12-14 06:04:17,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:04:17,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:04:17,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:17,576 INFO L225 Difference]: With dead ends: 253 [2022-12-14 06:04:17,576 INFO L226 Difference]: Without dead ends: 253 [2022-12-14 06:04:17,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-14 06:04:17,576 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 63 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:17,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 11 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 06:04:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-12-14 06:04:17,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 189. [2022-12-14 06:04:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 185 states have (on average 1.681081081081081) internal successors, (311), 188 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 311 transitions. [2022-12-14 06:04:17,579 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 311 transitions. Word has length 22 [2022-12-14 06:04:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:17,579 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 311 transitions. [2022-12-14 06:04:17,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 311 transitions. [2022-12-14 06:04:17,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:04:17,580 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:04:17,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:04:17,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-12-14 06:04:17,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:17,781 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:04:17,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:04:17,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1557754536, now seen corresponding path program 5 times [2022-12-14 06:04:17,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:04:17,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219541358] [2022-12-14 06:04:17,784 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-14 06:04:17,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:17,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:04:17,785 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:04:17,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-12-14 06:04:18,295 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 06:04:18,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:04:18,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 68 conjunts are in the unsatisfiable core [2022-12-14 06:04:18,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:18,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 77 [2022-12-14 06:04:18,391 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:04:18,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 69 [2022-12-14 06:04:18,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 25 [2022-12-14 06:04:18,535 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 06:04:18,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 43 [2022-12-14 06:04:18,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:18,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:04:19,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:19,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:19,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:19,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:19,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 95 [2022-12-14 06:04:20,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 85 [2022-12-14 06:04:20,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 121 [2022-12-14 06:04:20,785 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-12-14 06:04:20,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 06:04:21,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 121 [2022-12-14 06:04:21,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 219 [2022-12-14 06:04:21,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:04:21,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:04:21,585 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:04:21,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219541358] [2022-12-14 06:04:21,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219541358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:04:21,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:04:21,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:04:21,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836033665] [2022-12-14 06:04:21,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:04:21,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:04:21,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:04:21,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:04:21,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:04:21,587 INFO L87 Difference]: Start difference. First operand 189 states and 311 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:28,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:28,387 INFO L93 Difference]: Finished difference Result 199 states and 323 transitions. [2022-12-14 06:04:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:04:28,389 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:04:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:28,389 INFO L225 Difference]: With dead ends: 199 [2022-12-14 06:04:28,389 INFO L226 Difference]: Without dead ends: 199 [2022-12-14 06:04:28,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-12-14 06:04:28,390 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 22 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:28,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 5 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-12-14 06:04:28,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-12-14 06:04:28,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 189. [2022-12-14 06:04:28,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 185 states have (on average 1.681081081081081) internal successors, (311), 188 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:28,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 311 transitions. [2022-12-14 06:04:28,392 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 311 transitions. Word has length 22 [2022-12-14 06:04:28,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:28,392 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 311 transitions. [2022-12-14 06:04:28,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:28,392 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 311 transitions. [2022-12-14 06:04:28,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:04:28,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:04:28,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:04:28,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-12-14 06:04:28,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:28,594 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:04:28,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:04:28,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1973433188, now seen corresponding path program 6 times [2022-12-14 06:04:28,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:04:28,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740451573] [2022-12-14 06:04:28,597 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-14 06:04:28,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:28,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:04:28,600 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:04:28,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-12-14 06:04:29,438 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-14 06:04:29,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:04:29,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 06:04:29,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:29,563 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 06:04:29,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 43 [2022-12-14 06:04:29,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:29,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:29,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:29,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:29,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:29,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:29,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:29,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 77 [2022-12-14 06:04:29,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:29,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:04:29,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:29,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:04:30,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:30,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:30,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:30,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:30,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 95 [2022-12-14 06:04:31,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 85 [2022-12-14 06:04:31,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 121 [2022-12-14 06:04:31,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 121 [2022-12-14 06:04:32,029 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-12-14 06:04:32,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 06:04:32,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 219 [2022-12-14 06:04:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:04:32,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:04:32,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:04:32,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740451573] [2022-12-14 06:04:32,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740451573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:04:32,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:04:32,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:04:32,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323902445] [2022-12-14 06:04:32,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:04:32,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:04:32,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:04:32,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:04:32,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:04:32,509 INFO L87 Difference]: Start difference. First operand 189 states and 311 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:36,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 06:04:41,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:41,159 INFO L93 Difference]: Finished difference Result 207 states and 329 transitions. [2022-12-14 06:04:41,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:04:41,160 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:04:41,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:41,161 INFO L225 Difference]: With dead ends: 207 [2022-12-14 06:04:41,161 INFO L226 Difference]: Without dead ends: 207 [2022-12-14 06:04:41,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-12-14 06:04:41,161 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:41,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 4 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-12-14 06:04:41,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-12-14 06:04:41,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 197. [2022-12-14 06:04:41,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.6632124352331605) internal successors, (321), 196 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:41,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 321 transitions. [2022-12-14 06:04:41,164 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 321 transitions. Word has length 22 [2022-12-14 06:04:41,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:41,164 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 321 transitions. [2022-12-14 06:04:41,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:41,164 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 321 transitions. [2022-12-14 06:04:41,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:04:41,164 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:04:41,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:04:41,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-12-14 06:04:41,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:41,366 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:04:41,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:04:41,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1973433187, now seen corresponding path program 3 times [2022-12-14 06:04:41,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:04:41,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808311748] [2022-12-14 06:04:41,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:04:41,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:41,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:04:41,372 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:04:41,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-12-14 06:04:41,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 06:04:41,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:04:41,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 06:04:41,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:41,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-12-14 06:04:41,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 06:04:42,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:42,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 06:04:42,089 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-14 06:04:42,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-14 06:04:42,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:04:42,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:04:42,164 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:04:42,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808311748] [2022-12-14 06:04:42,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808311748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:04:42,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:04:42,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:04:42,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778372577] [2022-12-14 06:04:42,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:04:42,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:04:42,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:04:42,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:04:42,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:04:42,165 INFO L87 Difference]: Start difference. First operand 197 states and 321 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:42,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:42,421 INFO L93 Difference]: Finished difference Result 195 states and 317 transitions. [2022-12-14 06:04:42,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:04:42,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:04:42,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:42,422 INFO L225 Difference]: With dead ends: 195 [2022-12-14 06:04:42,422 INFO L226 Difference]: Without dead ends: 195 [2022-12-14 06:04:42,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:04:42,423 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 35 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:42,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:04:42,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-12-14 06:04:42,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 176. [2022-12-14 06:04:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 174 states have (on average 1.6781609195402298) internal successors, (292), 175 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 292 transitions. [2022-12-14 06:04:42,425 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 292 transitions. Word has length 22 [2022-12-14 06:04:42,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:42,425 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 292 transitions. [2022-12-14 06:04:42,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:42,425 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 292 transitions. [2022-12-14 06:04:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:04:42,426 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:04:42,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:04:42,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2022-12-14 06:04:42,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:42,627 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:04:42,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:04:42,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1303431396, now seen corresponding path program 7 times [2022-12-14 06:04:42,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:04:42,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368921430] [2022-12-14 06:04:42,629 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 06:04:42,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:42,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:04:42,630 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:04:42,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-12-14 06:04:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:04:43,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 06:04:43,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:43,264 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-14 06:04:43,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 06:04:43,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:43,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:43,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:43,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:43,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:43,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:43,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:43,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 77 [2022-12-14 06:04:43,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:43,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:04:43,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:43,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:04:44,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:44,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:44,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:44,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:44,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 95 [2022-12-14 06:04:44,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 85 [2022-12-14 06:04:44,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 121 [2022-12-14 06:04:45,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 121 [2022-12-14 06:04:45,427 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:04:45,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 223 treesize of output 223 [2022-12-14 06:04:45,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 193 [2022-12-14 06:04:45,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:04:45,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:04:45,665 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:04:45,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368921430] [2022-12-14 06:04:45,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368921430] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:04:45,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:04:45,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:04:45,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390115739] [2022-12-14 06:04:45,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:04:45,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:04:45,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:04:45,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:04:45,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:04:45,667 INFO L87 Difference]: Start difference. First operand 176 states and 292 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:52,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:04:52,044 INFO L93 Difference]: Finished difference Result 190 states and 306 transitions. [2022-12-14 06:04:52,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:04:52,046 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:04:52,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:04:52,046 INFO L225 Difference]: With dead ends: 190 [2022-12-14 06:04:52,046 INFO L226 Difference]: Without dead ends: 190 [2022-12-14 06:04:52,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-12-14 06:04:52,047 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:04:52,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 8 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 06:04:52,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-12-14 06:04:52,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 162. [2022-12-14 06:04:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.69375) internal successors, (271), 161 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 271 transitions. [2022-12-14 06:04:52,049 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 271 transitions. Word has length 22 [2022-12-14 06:04:52,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:04:52,049 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 271 transitions. [2022-12-14 06:04:52,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:04:52,050 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 271 transitions. [2022-12-14 06:04:52,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:04:52,050 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:04:52,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:04:52,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-12-14 06:04:52,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:52,252 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:04:52,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:04:52,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1779914118, now seen corresponding path program 8 times [2022-12-14 06:04:52,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:04:52,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10554380] [2022-12-14 06:04:52,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:04:52,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:04:52,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:04:52,257 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:04:52,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-12-14 06:04:52,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 06:04:52,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:04:53,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 06:04:53,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:04:53,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 77 [2022-12-14 06:04:53,088 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:04:53,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 69 [2022-12-14 06:04:53,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 25 [2022-12-14 06:04:53,253 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-12-14 06:04:53,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 06:04:53,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:53,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:04:54,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:54,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:54,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:54,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:04:54,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 95 [2022-12-14 06:04:54,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 85 [2022-12-14 06:04:55,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:04:55,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 121 [2022-12-14 06:04:55,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 121 [2022-12-14 06:04:55,635 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:04:55,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 223 treesize of output 223 [2022-12-14 06:04:55,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 193 [2022-12-14 06:04:55,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:04:55,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:04:55,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:04:55,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10554380] [2022-12-14 06:04:55,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10554380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:04:55,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:04:55,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:04:55,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011339299] [2022-12-14 06:04:55,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:04:55,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:04:55,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:04:55,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:04:55,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:04:55,948 INFO L87 Difference]: Start difference. First operand 162 states and 271 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:05:03,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:05:03,366 INFO L93 Difference]: Finished difference Result 223 states and 371 transitions. [2022-12-14 06:05:03,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:05:03,367 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:05:03,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:05:03,368 INFO L225 Difference]: With dead ends: 223 [2022-12-14 06:05:03,368 INFO L226 Difference]: Without dead ends: 223 [2022-12-14 06:05:03,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-12-14 06:05:03,368 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 43 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:05:03,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 10 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 06:05:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-12-14 06:05:03,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 200. [2022-12-14 06:05:03,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 198 states have (on average 1.7323232323232323) internal successors, (343), 199 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:05:03,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 343 transitions. [2022-12-14 06:05:03,370 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 343 transitions. Word has length 22 [2022-12-14 06:05:03,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:05:03,371 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 343 transitions. [2022-12-14 06:05:03,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:05:03,371 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 343 transitions. [2022-12-14 06:05:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:05:03,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:05:03,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:05:03,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-12-14 06:05:03,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:05:03,573 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 56 more)] === [2022-12-14 06:05:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:05:03,574 INFO L85 PathProgramCache]: Analyzing trace with hash -520247818, now seen corresponding path program 9 times [2022-12-14 06:05:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:05:03,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32521556] [2022-12-14 06:05:03,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:05:03,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:05:03,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:05:03,578 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:05:03,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c53bb5-ba1c-41cf-b2f3-b487589cb94f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-12-14 06:05:04,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 06:05:04,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:05:04,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 66 conjunts are in the unsatisfiable core [2022-12-14 06:05:04,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:05:04,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 77 [2022-12-14 06:05:04,232 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:05:04,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 69 [2022-12-14 06:05:04,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 25 [2022-12-14 06:05:04,432 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 06:05:04,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 43 [2022-12-14 06:05:04,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:04,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2022-12-14 06:05:05,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:05,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:05,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:05,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:05,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 95 [2022-12-14 06:05:06,152 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-12-14 06:05:06,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 06:05:06,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 85 [2022-12-14 06:05:07,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 121 [2022-12-14 06:05:07,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:07,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:07,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:07,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:07,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 58 [2022-12-14 06:05:07,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:05:07,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:07,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:07,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 217 [2022-12-14 06:05:07,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:05:07,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:05:07,780 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:05:07,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32521556] [2022-12-14 06:05:07,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32521556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:05:07,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:05:07,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:05:07,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795351059] [2022-12-14 06:05:07,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:05:07,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:05:07,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:05:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:05:07,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:05:07,782 INFO L87 Difference]: Start difference. First operand 200 states and 343 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:05:09,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers []