./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur --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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- 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-38b53e6 [2022-11-26 01:02:12,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:02:12,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:02:12,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:02:12,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:02:12,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:02:12,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:02:12,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:02:12,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:02:12,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:02:12,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:02:12,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:02:12,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:02:12,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:02:12,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:02:12,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:02:12,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:02:12,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:02:12,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:02:12,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:02:12,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:02:12,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:02:12,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:02:12,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:02:12,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:02:12,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:02:12,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:02:12,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:02:12,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:02:12,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:02:12,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:02:12,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:02:12,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:02:12,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:02:12,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:02:12,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:02:12,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:02:12,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:02:12,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:02:12,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:02:12,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:02:12,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 01:02:12,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:02:12,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:02:12,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:02:12,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:02:12,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:02:12,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:02:12,292 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:02:12,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:02:12,292 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:02:12,292 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:02:12,294 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:02:12,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:02:12,294 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:02:12,294 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:02:12,295 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:02:12,295 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:02:12,295 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:02:12,295 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:02:12,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 01:02:12,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 01:02:12,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:02:12,297 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:02:12,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:02:12,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:02:12,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:02:12,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:02:12,299 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 01:02:12,299 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 01:02:12,299 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 01:02:12,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:02:12,300 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:02:12,300 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:02:12,300 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:02:12,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:02:12,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:02:12,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:02:12,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:02:12,302 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:02:12,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:02:12,302 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:02:12,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:02:12,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:02:12,303 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_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-11-26 01:02:12,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:02:12,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:02:12,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:02:12,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:02:12,610 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:02:12,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-26 01:02:15,889 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:02:16,338 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:02:16,339 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-26 01:02:16,363 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/data/800188138/64eb88a2e8ba4922aa0b3e58cd2c9804/FLAG8fd22e54d [2022-11-26 01:02:16,377 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/data/800188138/64eb88a2e8ba4922aa0b3e58cd2c9804 [2022-11-26 01:02:16,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:02:16,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:02:16,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:02:16,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:02:16,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:02:16,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:02:16" (1/1) ... [2022-11-26 01:02:16,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15511d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:16, skipping insertion in model container [2022-11-26 01:02:16,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:02:16" (1/1) ... [2022-11-26 01:02:16,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:02:16,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:02:16,616 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:02:17,205 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_21585fba-a92c-44bb-ac54-21ea456db492/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-26 01:02:17,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:17,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:17,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:17,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:17,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:17,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:17,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:17,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:17,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:17,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:17,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:17,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:17,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:17,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:17,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:02:17,261 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) [2022-11-26 01:02:17,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bdf834c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:17, skipping insertion in model container [2022-11-26 01:02:17,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:02:17,262 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-26 01:02:17,264 INFO L158 Benchmark]: Toolchain (without parser) took 881.47ms. Allocated memory is still 176.2MB. Free memory was 139.5MB in the beginning and 120.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 01:02:17,264 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:02:17,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 879.01ms. Allocated memory is still 176.2MB. Free memory was 139.0MB in the beginning and 120.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 01:02:17,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 879.01ms. Allocated memory is still 176.2MB. Free memory was 139.0MB in the beginning and 120.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1691]: 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_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur --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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- 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-38b53e6 [2022-11-26 01:02:19,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:02:19,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:02:19,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:02:19,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:02:19,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:02:19,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:02:19,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:02:19,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:02:19,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:02:19,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:02:19,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:02:19,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:02:19,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:02:19,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:02:19,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:02:19,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:02:19,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:02:19,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:02:19,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:02:19,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:02:19,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:02:19,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:02:19,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:02:19,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:02:19,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:02:19,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:02:19,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:02:19,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:02:19,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:02:19,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:02:19,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:02:19,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:02:19,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:02:19,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:02:19,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:02:19,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:02:19,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:02:19,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:02:19,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:02:19,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:02:19,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-26 01:02:19,843 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:02:19,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:02:19,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:02:19,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:02:19,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:02:19,845 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:02:19,845 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:02:19,845 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:02:19,845 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:02:19,845 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:02:19,846 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:02:19,846 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:02:19,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 01:02:19,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 01:02:19,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:02:19,847 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:02:19,848 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:02:19,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:02:19,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:02:19,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:02:19,848 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 01:02:19,849 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 01:02:19,849 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 01:02:19,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:02:19,849 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:02:19,850 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 01:02:19,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 01:02:19,850 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:02:19,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:02:19,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:02:19,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 01:02:19,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:02:19,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:02:19,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:02:19,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:02:19,852 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 01:02:19,852 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 01:02:19,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:02:19,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 01:02:19,853 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_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-11-26 01:02:20,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:02:20,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:02:20,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:02:20,310 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:02:20,312 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:02:20,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-26 01:02:23,433 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:02:23,899 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:02:23,899 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-26 01:02:23,930 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/data/0f5bf0812/f0b8efc2e8e4440c8c8b94eeee997bcf/FLAG16fcae6f5 [2022-11-26 01:02:23,960 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/data/0f5bf0812/f0b8efc2e8e4440c8c8b94eeee997bcf [2022-11-26 01:02:23,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:02:23,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:02:23,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:02:23,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:02:23,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:02:23,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:02:23" (1/1) ... [2022-11-26 01:02:23,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5682c2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:23, skipping insertion in model container [2022-11-26 01:02:23,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:02:23" (1/1) ... [2022-11-26 01:02:23,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:02:24,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:02:24,184 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:02:25,020 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_21585fba-a92c-44bb-ac54-21ea456db492/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-26 01:02:25,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:02:25,082 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-26 01:02:25,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:02:25,103 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:02:25,162 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_21585fba-a92c-44bb-ac54-21ea456db492/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-26 01:02:25,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,191 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,192 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,193 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,194 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:02:25,211 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:02:25,225 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:02:25,254 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_21585fba-a92c-44bb-ac54-21ea456db492/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-26 01:02:25,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 01:02:25,267 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 01:02:25,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:02:25,405 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:02:25,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25 WrapperNode [2022-11-26 01:02:25,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:02:25,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:02:25,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:02:25,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:02:25,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,478 INFO L138 Inliner]: procedures = 473, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 141 [2022-11-26 01:02:25,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:02:25,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:02:25,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:02:25,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:02:25,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:02:25,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:02:25,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:02:25,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:02:25,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (1/1) ... [2022-11-26 01:02:25,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:02:25,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:02:25,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:02:25,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:02:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 01:02:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:02:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 01:02:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-26 01:02:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 01:02:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 01:02:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:02:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 01:02:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:02:25,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:02:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 01:02:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-26 01:02:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-26 01:02:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:02:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 01:02:25,637 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 01:02:26,120 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:02:26,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:02:26,792 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:02:26,845 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:02:26,845 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:02:26,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:02:26 BoogieIcfgContainer [2022-11-26 01:02:26,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:02:26,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:02:26,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:02:26,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:02:26,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:02:23" (1/3) ... [2022-11-26 01:02:26,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d69801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:02:26, skipping insertion in model container [2022-11-26 01:02:26,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:25" (2/3) ... [2022-11-26 01:02:26,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d69801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:02:26, skipping insertion in model container [2022-11-26 01:02:26,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:02:26" (3/3) ... [2022-11-26 01:02:26,857 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-11-26 01:02:26,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:02:26,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2022-11-26 01:02:26,877 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 01:02:26,982 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-26 01:02:27,022 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 01:02:27,041 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 225 transitions, 466 flow [2022-11-26 01:02:27,044 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 225 transitions, 466 flow [2022-11-26 01:02:27,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 225 transitions, 466 flow [2022-11-26 01:02:27,221 INFO L130 PetriNetUnfolder]: 8/296 cut-off events. [2022-11-26 01:02:27,221 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 01:02:27,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 296 events. 8/296 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 840 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 156. Up to 4 conditions per place. [2022-11-26 01:02:27,244 INFO L119 LiptonReduction]: Number of co-enabled transitions 7144 [2022-11-26 01:07:34,074 WARN L233 SmtUtils]: Spent 2.88m on a formula simplification. DAG size of input: 266 DAG size of output: 255 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:08:54,719 WARN L233 SmtUtils]: Spent 1.34m on a formula simplification that was a NOOP. DAG size: 245 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:12:09,436 WARN L233 SmtUtils]: Spent 3.25m on a formula simplification. DAG size of input: 266 DAG size of output: 255 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:13:31,786 WARN L233 SmtUtils]: Spent 1.37m on a formula simplification that was a NOOP. DAG size: 245 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:14:20,830 WARN L233 SmtUtils]: Spent 48.53s on a formula simplification. DAG size of input: 225 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:14:42,438 WARN L233 SmtUtils]: Spent 21.61s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:15:16,306 WARN L233 SmtUtils]: Spent 33.86s on a formula simplification. DAG size of input: 225 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:15:24,686 WARN L233 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 01:15:24,692 INFO L134 LiptonReduction]: Checked pairs total: 36312 [2022-11-26 01:15:24,693 INFO L136 LiptonReduction]: Total number of compositions: 256 [2022-11-26 01:15:24,702 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 93 transitions, 202 flow [2022-11-26 01:15:24,943 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5657 states, 4353 states have (on average 3.6326671261199173) internal successors, (15813), 5656 states have internal predecessors, (15813), 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) [2022-11-26 01:15:24,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:15:24,982 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;@7d38450d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:15:24,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-26 01:15:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 5657 states, 4353 states have (on average 3.6326671261199173) internal successors, (15813), 5656 states have internal predecessors, (15813), 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) [2022-11-26 01:15:25,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 01:15:25,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:15:25,014 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 01:15:25,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:15:25,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:15:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash 833, now seen corresponding path program 1 times [2022-11-26 01:15:25,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:15:25,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404777532] [2022-11-26 01:15:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:15:25,046 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 [2022-11-26 01:15:25,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:15:25,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:15:25,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:15:25,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 01:15:25,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:15:25,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:15:25,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:15:25,254 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:15:25,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404777532] [2022-11-26 01:15:25,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404777532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:15:25,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:15:25,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 01:15:25,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918695449] [2022-11-26 01:15:25,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:15:25,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 01:15:25,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:15:25,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 01:15:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 01:15:25,303 INFO L87 Difference]: Start difference. First operand has 5657 states, 4353 states have (on average 3.6326671261199173) internal successors, (15813), 5656 states have internal predecessors, (15813), 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) [2022-11-26 01:15:26,458 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 [] [2022-11-26 01:15:27,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:15:27,201 INFO L93 Difference]: Finished difference Result 4780 states and 13206 transitions. [2022-11-26 01:15:27,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 01:15:27,204 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 [2022-11-26 01:15:27,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:15:27,261 INFO L225 Difference]: With dead ends: 4780 [2022-11-26 01:15:27,262 INFO L226 Difference]: Without dead ends: 4774 [2022-11-26 01:15:27,263 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 [2022-11-26 01:15:27,266 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:15:27,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 01:15:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2022-11-26 01:15:27,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 4774. [2022-11-26 01:15:27,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4774 states, 3779 states have (on average 3.490870600688013) internal successors, (13192), 4773 states have internal predecessors, (13192), 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) [2022-11-26 01:15:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 13192 transitions. [2022-11-26 01:15:27,602 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 13192 transitions. Word has length 1 [2022-11-26 01:15:27,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:15:27,602 INFO L495 AbstractCegarLoop]: Abstraction has 4774 states and 13192 transitions. [2022-11-26 01:15:27,603 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) [2022-11-26 01:15:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 13192 transitions. [2022-11-26 01:15:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-26 01:15:27,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:15:27,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-26 01:15:27,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:27,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:15:27,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:15:27,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:15:27,826 INFO L85 PathProgramCache]: Analyzing trace with hash 26843, now seen corresponding path program 1 times [2022-11-26 01:15:27,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:15:27,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351297158] [2022-11-26 01:15:27,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:15:27,827 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 [2022-11-26 01:15:27,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:15:27,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:15:27,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:15:28,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 01:15:28,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:15:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:15:28,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:15:28,104 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:15:28,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351297158] [2022-11-26 01:15:28,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351297158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:15:28,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:15:28,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:15:28,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606961204] [2022-11-26 01:15:28,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:15:28,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:15:28,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:15:28,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:15:28,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:15:28,108 INFO L87 Difference]: Start difference. First operand 4774 states and 13192 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) [2022-11-26 01:15:30,348 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 [] [2022-11-26 01:15:31,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:15:31,477 INFO L93 Difference]: Finished difference Result 4775 states and 13192 transitions. [2022-11-26 01:15:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:15:31,480 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 [2022-11-26 01:15:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:15:31,513 INFO L225 Difference]: With dead ends: 4775 [2022-11-26 01:15:31,513 INFO L226 Difference]: Without dead ends: 4775 [2022-11-26 01:15:31,513 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 [2022-11-26 01:15:31,519 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:15:31,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 50 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-26 01:15:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2022-11-26 01:15:31,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4761. [2022-11-26 01:15:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 3775 states have (on average 3.4911258278145696) internal successors, (13179), 4760 states have internal predecessors, (13179), 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) [2022-11-26 01:15:31,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 13179 transitions. [2022-11-26 01:15:31,722 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 13179 transitions. Word has length 2 [2022-11-26 01:15:31,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:15:31,722 INFO L495 AbstractCegarLoop]: Abstraction has 4761 states and 13179 transitions. [2022-11-26 01:15:31,723 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) [2022-11-26 01:15:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 13179 transitions. [2022-11-26 01:15:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 01:15:31,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:15:31,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 01:15:31,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:15:31,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:15:31,941 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:15:31,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:15:31,942 INFO L85 PathProgramCache]: Analyzing trace with hash 822158, now seen corresponding path program 1 times [2022-11-26 01:15:31,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:15:31,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035795071] [2022-11-26 01:15:31,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:15:31,944 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 [2022-11-26 01:15:31,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:15:31,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:15:31,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:15:32,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 01:15:32,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:15:32,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:32,379 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 [2022-11-26 01:15:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:15:32,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:15:32,473 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:15:32,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035795071] [2022-11-26 01:15:32,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035795071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:15:32,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:15:32,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:15:32,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139945947] [2022-11-26 01:15:32,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:15:32,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:15:32,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:15:32,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:15:32,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:15:32,475 INFO L87 Difference]: Start difference. First operand 4761 states and 13179 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) [2022-11-26 01:15:34,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:15:34,318 INFO L93 Difference]: Finished difference Result 4737 states and 13133 transitions. [2022-11-26 01:15:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:15:34,320 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 [2022-11-26 01:15:34,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:15:34,355 INFO L225 Difference]: With dead ends: 4737 [2022-11-26 01:15:34,355 INFO L226 Difference]: Without dead ends: 4737 [2022-11-26 01:15:34,356 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 [2022-11-26 01:15:34,357 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:15:34,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 9 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 01:15:34,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4737 states. [2022-11-26 01:15:34,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4737 to 4737. [2022-11-26 01:15:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4737 states, 3765 states have (on average 3.488180610889774) internal successors, (13133), 4736 states have internal predecessors, (13133), 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) [2022-11-26 01:15:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4737 states to 4737 states and 13133 transitions. [2022-11-26 01:15:34,633 INFO L78 Accepts]: Start accepts. Automaton has 4737 states and 13133 transitions. Word has length 3 [2022-11-26 01:15:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:15:34,633 INFO L495 AbstractCegarLoop]: Abstraction has 4737 states and 13133 transitions. [2022-11-26 01:15:34,634 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) [2022-11-26 01:15:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4737 states and 13133 transitions. [2022-11-26 01:15:34,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 01:15:34,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:15:34,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 01:15:34,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-26 01:15:34,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:15:34,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:15:34,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:15:34,853 INFO L85 PathProgramCache]: Analyzing trace with hash 822157, now seen corresponding path program 1 times [2022-11-26 01:15:34,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:15:34,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775550210] [2022-11-26 01:15:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:15:34,855 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 [2022-11-26 01:15:34,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:15:34,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:15:34,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:15:35,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 01:15:35,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:15:35,312 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-26 01:15:35,313 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 [2022-11-26 01:15:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:15:35,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:15:35,417 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:15:35,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775550210] [2022-11-26 01:15:35,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775550210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:15:35,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:15:35,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:15:35,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751914345] [2022-11-26 01:15:35,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:15:35,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:15:35,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:15:35,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:15:35,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:15:35,420 INFO L87 Difference]: Start difference. First operand 4737 states and 13133 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) [2022-11-26 01:15:37,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:15:38,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:15:38,135 INFO L93 Difference]: Finished difference Result 4725 states and 13099 transitions. [2022-11-26 01:15:38,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:15:38,136 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 [2022-11-26 01:15:38,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:15:38,213 INFO L225 Difference]: With dead ends: 4725 [2022-11-26 01:15:38,220 INFO L226 Difference]: Without dead ends: 4725 [2022-11-26 01:15:38,221 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 [2022-11-26 01:15:38,221 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 57 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:15:38,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 15 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-26 01:15:38,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4725 states. [2022-11-26 01:15:38,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4725 to 4713. [2022-11-26 01:15:38,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4713 states, 3755 states have (on average 3.485219707057257) internal successors, (13087), 4712 states have internal predecessors, (13087), 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) [2022-11-26 01:15:38,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4713 states to 4713 states and 13087 transitions. [2022-11-26 01:15:38,415 INFO L78 Accepts]: Start accepts. Automaton has 4713 states and 13087 transitions. Word has length 3 [2022-11-26 01:15:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:15:38,415 INFO L495 AbstractCegarLoop]: Abstraction has 4713 states and 13087 transitions. [2022-11-26 01:15:38,416 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) [2022-11-26 01:15:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4713 states and 13087 transitions. [2022-11-26 01:15:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 01:15:38,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:15:38,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 01:15:38,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:15:38,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:15:38,636 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:15:38,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:15:38,636 INFO L85 PathProgramCache]: Analyzing trace with hash 831630, now seen corresponding path program 1 times [2022-11-26 01:15:38,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:15:38,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461965176] [2022-11-26 01:15:38,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:15:38,638 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 [2022-11-26 01:15:38,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:15:38,641 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:15:38,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:15:38,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 01:15:38,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:15:38,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 01:15:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:15:38,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:15:38,964 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:15:38,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461965176] [2022-11-26 01:15:38,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461965176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:15:38,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:15:38,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:15:38,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887585145] [2022-11-26 01:15:38,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:15:38,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:15:38,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:15:38,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:15:38,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:15:38,966 INFO L87 Difference]: Start difference. First operand 4713 states and 13087 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) [2022-11-26 01:15:41,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:15:41,095 INFO L93 Difference]: Finished difference Result 4145 states and 11463 transitions. [2022-11-26 01:15:41,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:15:41,097 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 [2022-11-26 01:15:41,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:15:41,115 INFO L225 Difference]: With dead ends: 4145 [2022-11-26 01:15:41,115 INFO L226 Difference]: Without dead ends: 4145 [2022-11-26 01:15:41,116 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 [2022-11-26 01:15:41,117 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 33 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:15:41,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 23 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-26 01:15:41,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2022-11-26 01:15:41,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 4140. [2022-11-26 01:15:41,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 3378 states have (on average 3.3925399644760215) internal successors, (11460), 4139 states have internal predecessors, (11460), 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) [2022-11-26 01:15:41,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 11460 transitions. [2022-11-26 01:15:41,286 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 11460 transitions. Word has length 3 [2022-11-26 01:15:41,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:15:41,287 INFO L495 AbstractCegarLoop]: Abstraction has 4140 states and 11460 transitions. [2022-11-26 01:15:41,287 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) [2022-11-26 01:15:41,288 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 11460 transitions. [2022-11-26 01:15:41,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 01:15:41,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:15:41,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 01:15:41,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:15:41,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:15:41,507 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:15:41,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:15:41,508 INFO L85 PathProgramCache]: Analyzing trace with hash 831524, now seen corresponding path program 1 times [2022-11-26 01:15:41,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:15:41,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845476867] [2022-11-26 01:15:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:15:41,509 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 [2022-11-26 01:15:41,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:15:41,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:15:41,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:15:41,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 01:15:41,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:15:41,718 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 [2022-11-26 01:15:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:15:41,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:15:41,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:15:41,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845476867] [2022-11-26 01:15:41,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845476867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:15:41,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:15:41,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:15:41,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745534282] [2022-11-26 01:15:41,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:15:41,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:15:41,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:15:41,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:15:41,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:15:41,754 INFO L87 Difference]: Start difference. First operand 4140 states and 11460 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) [2022-11-26 01:15:43,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:15:44,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:15:44,124 INFO L93 Difference]: Finished difference Result 3851 states and 10642 transitions. [2022-11-26 01:15:44,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:15:44,125 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 [2022-11-26 01:15:44,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:15:44,143 INFO L225 Difference]: With dead ends: 3851 [2022-11-26 01:15:44,143 INFO L226 Difference]: Without dead ends: 3851 [2022-11-26 01:15:44,143 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 [2022-11-26 01:15:44,144 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 56 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:15:44,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 15 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-26 01:15:44,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2022-11-26 01:15:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3851. [2022-11-26 01:15:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3188 states have (on average 3.338143036386449) internal successors, (10642), 3850 states have internal predecessors, (10642), 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) [2022-11-26 01:15:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 10642 transitions. [2022-11-26 01:15:44,323 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 10642 transitions. Word has length 3 [2022-11-26 01:15:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:15:44,323 INFO L495 AbstractCegarLoop]: Abstraction has 3851 states and 10642 transitions. [2022-11-26 01:15:44,323 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) [2022-11-26 01:15:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 10642 transitions. [2022-11-26 01:15:44,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 01:15:44,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:15:44,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 01:15:44,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:15:44,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:15:44,549 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:15:44,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:15:44,550 INFO L85 PathProgramCache]: Analyzing trace with hash 25488131, now seen corresponding path program 1 times [2022-11-26 01:15:44,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:15:44,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554199212] [2022-11-26 01:15:44,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:15:44,551 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 [2022-11-26 01:15:44,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:15:44,552 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:15:44,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:15:44,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-26 01:15:44,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:15:44,766 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 [2022-11-26 01:15:44,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:15:44,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:15:44,838 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:15:44,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554199212] [2022-11-26 01:15:44,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554199212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:15:44,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:15:44,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:15:44,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991346089] [2022-11-26 01:15:44,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:15:44,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:15:44,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:15:44,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:15:44,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:15:44,840 INFO L87 Difference]: Start difference. First operand 3851 states and 10642 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 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) [2022-11-26 01:15:47,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:15:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:15:50,592 INFO L93 Difference]: Finished difference Result 3233 states and 8728 transitions. [2022-11-26 01:15:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:15:50,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 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 [2022-11-26 01:15:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:15:50,613 INFO L225 Difference]: With dead ends: 3233 [2022-11-26 01:15:50,613 INFO L226 Difference]: Without dead ends: 3233 [2022-11-26 01:15:50,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:15:50,615 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 163 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:15:50,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 33 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-26 01:15:50,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2022-11-26 01:15:50,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3089. [2022-11-26 01:15:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 2657 states have (on average 3.1881821603312006) internal successors, (8471), 3088 states have internal predecessors, (8471), 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) [2022-11-26 01:15:50,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 8471 transitions. [2022-11-26 01:15:50,759 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 8471 transitions. Word has length 4 [2022-11-26 01:15:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:15:50,759 INFO L495 AbstractCegarLoop]: Abstraction has 3089 states and 8471 transitions. [2022-11-26 01:15:50,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 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) [2022-11-26 01:15:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 8471 transitions. [2022-11-26 01:15:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 01:15:50,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:15:50,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 01:15:50,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:15:50,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:15:50,976 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:15:50,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:15:50,977 INFO L85 PathProgramCache]: Analyzing trace with hash 25488132, now seen corresponding path program 1 times [2022-11-26 01:15:50,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:15:50,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179505445] [2022-11-26 01:15:50,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:15:50,977 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 [2022-11-26 01:15:50,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:15:50,979 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:15:50,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:15:51,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-26 01:15:51,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:15:51,237 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 [2022-11-26 01:15:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:15:51,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:15:51,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:15:51,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179505445] [2022-11-26 01:15:51,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179505445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:15:51,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:15:51,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:15:51,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403564962] [2022-11-26 01:15:51,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:15:51,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:15:51,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:15:51,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:15:51,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:15:51,394 INFO L87 Difference]: Start difference. First operand 3089 states and 8471 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 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) [2022-11-26 01:15:52,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:15:57,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:15:57,014 INFO L93 Difference]: Finished difference Result 2657 states and 7095 transitions. [2022-11-26 01:15:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:15:57,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 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 [2022-11-26 01:15:57,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:15:57,024 INFO L225 Difference]: With dead ends: 2657 [2022-11-26 01:15:57,025 INFO L226 Difference]: Without dead ends: 2653 [2022-11-26 01:15:57,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:15:57,027 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 96 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:15:57,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 38 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 01:15:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2022-11-26 01:15:57,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2647. [2022-11-26 01:15:57,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2647 states, 2299 states have (on average 3.078294910830796) internal successors, (7077), 2646 states have internal predecessors, (7077), 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) [2022-11-26 01:15:57,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 7077 transitions. [2022-11-26 01:15:57,125 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 7077 transitions. Word has length 4 [2022-11-26 01:15:57,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:15:57,125 INFO L495 AbstractCegarLoop]: Abstraction has 2647 states and 7077 transitions. [2022-11-26 01:15:57,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 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) [2022-11-26 01:15:57,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 7077 transitions. [2022-11-26 01:15:57,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:15:57,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:15:57,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:15:57,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:57,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:15:57,340 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:15:57,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:15:57,340 INFO L85 PathProgramCache]: Analyzing trace with hash 799109750, now seen corresponding path program 1 times [2022-11-26 01:15:57,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:15:57,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947481769] [2022-11-26 01:15:57,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:15:57,341 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 [2022-11-26 01:15:57,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:15:57,342 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:15:57,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:15:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:15:57,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 01:15:57,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:15:57,713 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 [2022-11-26 01:15:57,858 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:15:57,858 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 [2022-11-26 01:15:57,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:15:57,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:15:57,903 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:15:57,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947481769] [2022-11-26 01:15:57,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947481769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:15:57,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:15:57,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:15:57,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177574329] [2022-11-26 01:15:57,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:15:57,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:15:57,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:15:57,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:15:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:15:57,905 INFO L87 Difference]: Start difference. First operand 2647 states and 7077 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) [2022-11-26 01:15:59,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:02,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:02,129 INFO L93 Difference]: Finished difference Result 2958 states and 7921 transitions. [2022-11-26 01:16:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:16:02,131 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 [2022-11-26 01:16:02,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:02,141 INFO L225 Difference]: With dead ends: 2958 [2022-11-26 01:16:02,141 INFO L226 Difference]: Without dead ends: 2958 [2022-11-26 01:16:02,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:02,143 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:02,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 47 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 01:16:02,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-11-26 01:16:02,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2766. [2022-11-26 01:16:02,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2419 states have (on average 3.058701942951633) internal successors, (7399), 2765 states have internal predecessors, (7399), 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) [2022-11-26 01:16:02,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 7399 transitions. [2022-11-26 01:16:02,244 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 7399 transitions. Word has length 5 [2022-11-26 01:16:02,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:02,244 INFO L495 AbstractCegarLoop]: Abstraction has 2766 states and 7399 transitions. [2022-11-26 01:16:02,245 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) [2022-11-26 01:16:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 7399 transitions. [2022-11-26 01:16:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 01:16:02,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:02,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 01:16:02,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:02,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:02,459 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:02,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1276310157, now seen corresponding path program 1 times [2022-11-26 01:16:02,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:02,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677921671] [2022-11-26 01:16:02,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:02,460 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 [2022-11-26 01:16:02,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:02,461 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:02,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:02,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-26 01:16:02,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:02,697 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 [2022-11-26 01:16:02,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:02,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:02,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:02,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677921671] [2022-11-26 01:16:02,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677921671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:02,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:02,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:16:02,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307950747] [2022-11-26 01:16:02,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:02,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:16:02,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:02,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:16:02,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:16:02,801 INFO L87 Difference]: Start difference. First operand 2766 states and 7399 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-11-26 01:16:03,870 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 [] [2022-11-26 01:16:05,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:06,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:09,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:09,096 INFO L93 Difference]: Finished difference Result 2374 states and 6204 transitions. [2022-11-26 01:16:09,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:16:09,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 [2022-11-26 01:16:09,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:09,103 INFO L225 Difference]: With dead ends: 2374 [2022-11-26 01:16:09,103 INFO L226 Difference]: Without dead ends: 2374 [2022-11-26 01:16:09,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:16:09,104 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 146 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:09,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 24 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-26 01:16:09,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-11-26 01:16:09,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 2247. [2022-11-26 01:16:09,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 2020 states have (on average 2.9623762376237623) internal successors, (5984), 2246 states have internal predecessors, (5984), 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) [2022-11-26 01:16:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 5984 transitions. [2022-11-26 01:16:09,168 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 5984 transitions. Word has length 6 [2022-11-26 01:16:09,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:09,169 INFO L495 AbstractCegarLoop]: Abstraction has 2247 states and 5984 transitions. [2022-11-26 01:16:09,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-11-26 01:16:09,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 5984 transitions. [2022-11-26 01:16:09,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 01:16:09,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:09,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 01:16:09,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:16:09,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:09,383 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:09,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:09,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1276310156, now seen corresponding path program 1 times [2022-11-26 01:16:09,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:09,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689496336] [2022-11-26 01:16:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:09,385 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 [2022-11-26 01:16:09,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:09,387 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:09,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:09,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-26 01:16:09,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:09,665 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 [2022-11-26 01:16:09,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:09,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:09,859 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:09,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689496336] [2022-11-26 01:16:09,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689496336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:09,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:09,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:16:09,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312637650] [2022-11-26 01:16:09,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:09,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:16:09,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:09,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:16:09,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:16:09,861 INFO L87 Difference]: Start difference. First operand 2247 states and 5984 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-11-26 01:16:11,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:13,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:16,101 INFO L93 Difference]: Finished difference Result 1961 states and 5088 transitions. [2022-11-26 01:16:16,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:16:16,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 [2022-11-26 01:16:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:16,106 INFO L225 Difference]: With dead ends: 1961 [2022-11-26 01:16:16,106 INFO L226 Difference]: Without dead ends: 1953 [2022-11-26 01:16:16,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:16:16,107 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 81 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:16,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 35 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-26 01:16:16,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2022-11-26 01:16:16,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1948. [2022-11-26 01:16:16,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1751 states have (on average 2.885208452312964) internal successors, (5052), 1947 states have internal predecessors, (5052), 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) [2022-11-26 01:16:16,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 5052 transitions. [2022-11-26 01:16:16,163 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 5052 transitions. Word has length 6 [2022-11-26 01:16:16,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:16,164 INFO L495 AbstractCegarLoop]: Abstraction has 1948 states and 5052 transitions. [2022-11-26 01:16:16,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-11-26 01:16:16,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 5052 transitions. [2022-11-26 01:16:16,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 01:16:16,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:16,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 01:16:16,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:16,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:16,385 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:16,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1276309737, now seen corresponding path program 1 times [2022-11-26 01:16:16,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:16,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409356186] [2022-11-26 01:16:16,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:16,386 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 [2022-11-26 01:16:16,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:16,387 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:16,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:16,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 01:16:16,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:16,813 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 5 [2022-11-26 01:16:16,830 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 [2022-11-26 01:16:17,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:17,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:17,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:17,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409356186] [2022-11-26 01:16:17,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409356186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:17,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:17,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:16:17,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359984247] [2022-11-26 01:16:17,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:17,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:16:17,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:17,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:16:17,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:17,004 INFO L87 Difference]: Start difference. First operand 1948 states and 5052 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) [2022-11-26 01:16:18,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:19,293 INFO L93 Difference]: Finished difference Result 1861 states and 4866 transitions. [2022-11-26 01:16:19,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:16:19,294 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 [2022-11-26 01:16:19,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:19,298 INFO L225 Difference]: With dead ends: 1861 [2022-11-26 01:16:19,298 INFO L226 Difference]: Without dead ends: 1861 [2022-11-26 01:16:19,298 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 [2022-11-26 01:16:19,299 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:19,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 7 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-26 01:16:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2022-11-26 01:16:19,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1858. [2022-11-26 01:16:19,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1683 states have (on average 2.8894830659536543) internal successors, (4863), 1857 states have internal predecessors, (4863), 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) [2022-11-26 01:16:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 4863 transitions. [2022-11-26 01:16:19,350 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 4863 transitions. Word has length 6 [2022-11-26 01:16:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:19,351 INFO L495 AbstractCegarLoop]: Abstraction has 1858 states and 4863 transitions. [2022-11-26 01:16:19,351 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) [2022-11-26 01:16:19,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 4863 transitions. [2022-11-26 01:16:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 01:16:19,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:19,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 01:16:19,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:19,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:19,571 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:19,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:19,572 INFO L85 PathProgramCache]: Analyzing trace with hash -997400704, now seen corresponding path program 1 times [2022-11-26 01:16:19,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:19,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503692998] [2022-11-26 01:16:19,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:19,573 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 [2022-11-26 01:16:19,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:19,574 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:19,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:19,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 01:16:19,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:19,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:16:19,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:16:19,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:16:19,906 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 [2022-11-26 01:16:20,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:20,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:20,064 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:20,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503692998] [2022-11-26 01:16:20,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503692998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:20,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:20,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:16:20,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065213700] [2022-11-26 01:16:20,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:20,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:16:20,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:20,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:16:20,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:20,066 INFO L87 Difference]: Start difference. First operand 1858 states and 4863 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) [2022-11-26 01:16:22,149 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 [] [2022-11-26 01:16:23,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:23,759 INFO L93 Difference]: Finished difference Result 1981 states and 5186 transitions. [2022-11-26 01:16:23,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:16:23,761 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 [2022-11-26 01:16:23,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:23,766 INFO L225 Difference]: With dead ends: 1981 [2022-11-26 01:16:23,766 INFO L226 Difference]: Without dead ends: 1981 [2022-11-26 01:16:23,766 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 [2022-11-26 01:16:23,767 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:23,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 42 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-26 01:16:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2022-11-26 01:16:23,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1917. [2022-11-26 01:16:23,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1743 states have (on average 2.8973034997131384) internal successors, (5050), 1916 states have internal predecessors, (5050), 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) [2022-11-26 01:16:23,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 5050 transitions. [2022-11-26 01:16:23,817 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 5050 transitions. Word has length 6 [2022-11-26 01:16:23,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:23,818 INFO L495 AbstractCegarLoop]: Abstraction has 1917 states and 5050 transitions. [2022-11-26 01:16:23,818 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) [2022-11-26 01:16:23,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 5050 transitions. [2022-11-26 01:16:23,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 01:16:23,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:23,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:23,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:16:24,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:24,036 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:24,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:24,037 INFO L85 PathProgramCache]: Analyzing trace with hash -910894070, now seen corresponding path program 1 times [2022-11-26 01:16:24,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:24,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301424149] [2022-11-26 01:16:24,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:24,038 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 [2022-11-26 01:16:24,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:24,039 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:24,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:24,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 01:16:24,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:24,481 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 [2022-11-26 01:16:24,497 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 [2022-11-26 01:16:24,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:24,674 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 [2022-11-26 01:16:24,711 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-26 01:16:24,711 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 [2022-11-26 01:16:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:24,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:24,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:24,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301424149] [2022-11-26 01:16:24,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301424149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:24,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:24,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:16:24,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059528178] [2022-11-26 01:16:24,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:24,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:16:24,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:24,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:16:24,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:16:24,750 INFO L87 Difference]: Start difference. First operand 1917 states and 5050 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 01:16:27,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:27,782 INFO L93 Difference]: Finished difference Result 1681 states and 4381 transitions. [2022-11-26 01:16:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:16:27,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-26 01:16:27,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:27,787 INFO L225 Difference]: With dead ends: 1681 [2022-11-26 01:16:27,787 INFO L226 Difference]: Without dead ends: 1681 [2022-11-26 01:16:27,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:16:27,788 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 83 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:27,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 15 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-26 01:16:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2022-11-26 01:16:27,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1674. [2022-11-26 01:16:27,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1548 states have (on average 2.8262273901808785) internal successors, (4375), 1673 states have internal predecessors, (4375), 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) [2022-11-26 01:16:27,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 4375 transitions. [2022-11-26 01:16:27,834 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 4375 transitions. Word has length 7 [2022-11-26 01:16:27,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:27,835 INFO L495 AbstractCegarLoop]: Abstraction has 1674 states and 4375 transitions. [2022-11-26 01:16:27,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 01:16:27,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 4375 transitions. [2022-11-26 01:16:27,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:16:27,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:27,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:27,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:16:28,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:28,057 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:28,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:28,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1996766411, now seen corresponding path program 1 times [2022-11-26 01:16:28,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:28,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292737241] [2022-11-26 01:16:28,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:28,058 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 [2022-11-26 01:16:28,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:28,059 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:28,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:28,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-26 01:16:28,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:28,390 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 [2022-11-26 01:16:28,403 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 [2022-11-26 01:16:28,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:28,686 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 [2022-11-26 01:16:28,720 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-26 01:16:28,721 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 [2022-11-26 01:16:28,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:28,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:28,778 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:28,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292737241] [2022-11-26 01:16:28,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292737241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:28,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:28,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:16:28,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464991202] [2022-11-26 01:16:28,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:28,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:16:28,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:28,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:16:28,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:16:28,781 INFO L87 Difference]: Start difference. First operand 1674 states and 4375 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-26 01:16:33,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:33,693 INFO L93 Difference]: Finished difference Result 1651 states and 4162 transitions. [2022-11-26 01:16:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 01:16:33,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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 [2022-11-26 01:16:33,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:33,697 INFO L225 Difference]: With dead ends: 1651 [2022-11-26 01:16:33,697 INFO L226 Difference]: Without dead ends: 1651 [2022-11-26 01:16:33,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:16:33,698 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 196 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:33,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 12 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 01:16:33,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2022-11-26 01:16:33,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1404. [2022-11-26 01:16:33,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1338 states have (on average 2.7070254110612857) internal successors, (3622), 1403 states have internal predecessors, (3622), 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) [2022-11-26 01:16:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 3622 transitions. [2022-11-26 01:16:33,734 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 3622 transitions. Word has length 8 [2022-11-26 01:16:33,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:33,734 INFO L495 AbstractCegarLoop]: Abstraction has 1404 states and 3622 transitions. [2022-11-26 01:16:33,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-26 01:16:33,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 3622 transitions. [2022-11-26 01:16:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:16:33,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:33,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:33,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:16:33,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:33,953 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:33,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:33,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1826808775, now seen corresponding path program 1 times [2022-11-26 01:16:33,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:33,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014381504] [2022-11-26 01:16:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:33,955 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 [2022-11-26 01:16:33,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:33,956 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:33,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:34,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-26 01:16:34,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:34,300 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 [2022-11-26 01:16:34,318 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 [2022-11-26 01:16:34,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:34,590 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 [2022-11-26 01:16:34,624 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-26 01:16:34,625 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 [2022-11-26 01:16:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:34,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:34,665 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:34,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014381504] [2022-11-26 01:16:34,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014381504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:34,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:34,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:16:34,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763711257] [2022-11-26 01:16:34,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:34,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:16:34,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:34,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:16:34,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:16:34,667 INFO L87 Difference]: Start difference. First operand 1404 states and 3622 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-26 01:16:35,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:37,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:40,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:40,527 INFO L93 Difference]: Finished difference Result 1456 states and 3640 transitions. [2022-11-26 01:16:40,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 01:16:40,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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 [2022-11-26 01:16:40,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:40,531 INFO L225 Difference]: With dead ends: 1456 [2022-11-26 01:16:40,531 INFO L226 Difference]: Without dead ends: 1456 [2022-11-26 01:16:40,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:16:40,532 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 178 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:40,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 12 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-26 01:16:40,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2022-11-26 01:16:40,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1209. [2022-11-26 01:16:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1164 states have (on average 2.663230240549828) internal successors, (3100), 1208 states have internal predecessors, (3100), 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) [2022-11-26 01:16:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3100 transitions. [2022-11-26 01:16:40,563 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3100 transitions. Word has length 8 [2022-11-26 01:16:40,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:40,564 INFO L495 AbstractCegarLoop]: Abstraction has 1209 states and 3100 transitions. [2022-11-26 01:16:40,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-26 01:16:40,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3100 transitions. [2022-11-26 01:16:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:16:40,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:40,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:40,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:40,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:40,783 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:40,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:40,784 INFO L85 PathProgramCache]: Analyzing trace with hash -724385988, now seen corresponding path program 1 times [2022-11-26 01:16:40,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:40,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258621813] [2022-11-26 01:16:40,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:40,785 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 [2022-11-26 01:16:40,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:40,786 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:40,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:41,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 01:16:41,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:41,355 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#data~1#1.base_509| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_509|) (_ bv0 1)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#data~1#1.base_509| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-26 01:16:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:41,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:41,356 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:41,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258621813] [2022-11-26 01:16:41,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258621813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:41,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:41,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:16:41,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953307210] [2022-11-26 01:16:41,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:41,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:16:41,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:41,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:16:41,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-11-26 01:16:41,359 INFO L87 Difference]: Start difference. First operand 1209 states and 3100 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) [2022-11-26 01:16:43,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:43,483 INFO L93 Difference]: Finished difference Result 1233 states and 3155 transitions. [2022-11-26 01:16:43,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:16:43,484 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 [2022-11-26 01:16:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:43,488 INFO L225 Difference]: With dead ends: 1233 [2022-11-26 01:16:43,488 INFO L226 Difference]: Without dead ends: 1220 [2022-11-26 01:16:43,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-11-26 01:16:43,489 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:43,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 10 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 88 Unchecked, 2.1s Time] [2022-11-26 01:16:43,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2022-11-26 01:16:43,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1220. [2022-11-26 01:16:43,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1175 states have (on average 2.6638297872340426) internal successors, (3130), 1219 states have internal predecessors, (3130), 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) [2022-11-26 01:16:43,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 3130 transitions. [2022-11-26 01:16:43,518 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 3130 transitions. Word has length 8 [2022-11-26 01:16:43,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:43,518 INFO L495 AbstractCegarLoop]: Abstraction has 1220 states and 3130 transitions. [2022-11-26 01:16:43,518 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) [2022-11-26 01:16:43,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 3130 transitions. [2022-11-26 01:16:43,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 01:16:43,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:43,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:43,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:16:43,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:43,744 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:43,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:43,744 INFO L85 PathProgramCache]: Analyzing trace with hash 803930000, now seen corresponding path program 1 times [2022-11-26 01:16:43,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:43,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549736045] [2022-11-26 01:16:43,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:43,745 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 [2022-11-26 01:16:43,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:43,746 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:43,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:44,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 01:16:44,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:44,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:44,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:44,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:44,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:16:44,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:16:44,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-11-26 01:16:44,225 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:16:44,226 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 69 treesize of output 89 [2022-11-26 01:16:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:44,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:44,266 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:44,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549736045] [2022-11-26 01:16:44,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549736045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:44,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:44,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:16:44,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659853905] [2022-11-26 01:16:44,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:44,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:16:44,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:44,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:16:44,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:44,268 INFO L87 Difference]: Start difference. First operand 1220 states and 3130 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-26 01:16:45,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:47,227 INFO L93 Difference]: Finished difference Result 1490 states and 3797 transitions. [2022-11-26 01:16:47,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:16:47,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-26 01:16:47,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:47,233 INFO L225 Difference]: With dead ends: 1490 [2022-11-26 01:16:47,233 INFO L226 Difference]: Without dead ends: 1490 [2022-11-26 01:16:47,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:47,234 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:47,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-26 01:16:47,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2022-11-26 01:16:47,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1280. [2022-11-26 01:16:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1235 states have (on average 2.6607287449392714) internal successors, (3286), 1279 states have internal predecessors, (3286), 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) [2022-11-26 01:16:47,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 3286 transitions. [2022-11-26 01:16:47,266 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 3286 transitions. Word has length 9 [2022-11-26 01:16:47,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:47,267 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 3286 transitions. [2022-11-26 01:16:47,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-26 01:16:47,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 3286 transitions. [2022-11-26 01:16:47,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 01:16:47,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:47,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:47,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-26 01:16:47,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:47,483 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:47,484 INFO L85 PathProgramCache]: Analyzing trace with hash -847973104, now seen corresponding path program 1 times [2022-11-26 01:16:47,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:47,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232149974] [2022-11-26 01:16:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:47,485 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 [2022-11-26 01:16:47,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:47,488 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:47,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:47,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 01:16:47,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:47,938 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-26 01:16:47,938 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 [2022-11-26 01:16:48,056 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-26 01:16:48,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 20 [2022-11-26 01:16:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:48,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:48,125 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:48,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232149974] [2022-11-26 01:16:48,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232149974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:48,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:48,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:16:48,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132368789] [2022-11-26 01:16:48,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:48,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:16:48,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:48,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:16:48,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:48,127 INFO L87 Difference]: Start difference. First operand 1280 states and 3286 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-26 01:16:49,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:49,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:49,745 INFO L93 Difference]: Finished difference Result 1244 states and 3190 transitions. [2022-11-26 01:16:49,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:16:49,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-11-26 01:16:49,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:49,749 INFO L225 Difference]: With dead ends: 1244 [2022-11-26 01:16:49,750 INFO L226 Difference]: Without dead ends: 1244 [2022-11-26 01:16:49,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:49,751 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:49,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 9 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 01:16:49,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-11-26 01:16:49,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1244. [2022-11-26 01:16:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1200 states have (on average 2.658333333333333) internal successors, (3190), 1243 states have internal predecessors, (3190), 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) [2022-11-26 01:16:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 3190 transitions. [2022-11-26 01:16:49,803 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 3190 transitions. Word has length 10 [2022-11-26 01:16:49,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:49,803 INFO L495 AbstractCegarLoop]: Abstraction has 1244 states and 3190 transitions. [2022-11-26 01:16:49,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-26 01:16:49,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 3190 transitions. [2022-11-26 01:16:49,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 01:16:49,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:49,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:49,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:50,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:50,022 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:50,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash -847973103, now seen corresponding path program 1 times [2022-11-26 01:16:50,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:50,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676137157] [2022-11-26 01:16:50,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:50,024 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 [2022-11-26 01:16:50,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:50,025 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:50,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:50,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 01:16:50,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:50,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:50,458 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 [2022-11-26 01:16:50,707 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 01:16:50,707 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 19 [2022-11-26 01:16:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:50,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:50,873 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:50,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676137157] [2022-11-26 01:16:50,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676137157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:50,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:50,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:16:50,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699425922] [2022-11-26 01:16:50,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:50,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:16:50,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:50,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:16:50,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:50,875 INFO L87 Difference]: Start difference. First operand 1244 states and 3190 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-26 01:16:51,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:51,842 INFO L93 Difference]: Finished difference Result 1208 states and 3094 transitions. [2022-11-26 01:16:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:16:51,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-11-26 01:16:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:51,846 INFO L225 Difference]: With dead ends: 1208 [2022-11-26 01:16:51,847 INFO L226 Difference]: Without dead ends: 1208 [2022-11-26 01:16:51,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:51,847 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:51,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 9 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 01:16:51,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-11-26 01:16:51,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1208. [2022-11-26 01:16:51,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1165 states have (on average 2.655793991416309) internal successors, (3094), 1207 states have internal predecessors, (3094), 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) [2022-11-26 01:16:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 3094 transitions. [2022-11-26 01:16:51,874 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 3094 transitions. Word has length 10 [2022-11-26 01:16:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:51,874 INFO L495 AbstractCegarLoop]: Abstraction has 1208 states and 3094 transitions. [2022-11-26 01:16:51,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-26 01:16:51,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 3094 transitions. [2022-11-26 01:16:51,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 01:16:51,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:51,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:51,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:52,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:52,091 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:52,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash -847973273, now seen corresponding path program 1 times [2022-11-26 01:16:52,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:52,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801845842] [2022-11-26 01:16:52,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:52,092 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 [2022-11-26 01:16:52,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:52,093 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:52,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:16:52,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 01:16:52,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:16:52,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:52,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:52,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:16:52,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:16:52,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 01:16:52,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-11-26 01:16:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:16:52,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:16:52,629 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:16:52,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801845842] [2022-11-26 01:16:52,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801845842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:16:52,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:16:52,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:16:52,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393214367] [2022-11-26 01:16:52,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:16:52,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:16:52,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:16:52,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:16:52,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:52,632 INFO L87 Difference]: Start difference. First operand 1208 states and 3094 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-26 01:16:53,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec, FloatRoundingMode], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:16:55,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:16:55,481 INFO L93 Difference]: Finished difference Result 1382 states and 3509 transitions. [2022-11-26 01:16:55,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:16:55,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-26 01:16:55,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:16:55,485 INFO L225 Difference]: With dead ends: 1382 [2022-11-26 01:16:55,485 INFO L226 Difference]: Without dead ends: 1382 [2022-11-26 01:16:55,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:16:55,486 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:16:55,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 31 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-26 01:16:55,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-11-26 01:16:55,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1268. [2022-11-26 01:16:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1225 states have (on average 2.679183673469388) internal successors, (3282), 1267 states have internal predecessors, (3282), 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) [2022-11-26 01:16:55,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 3282 transitions. [2022-11-26 01:16:55,518 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 3282 transitions. Word has length 10 [2022-11-26 01:16:55,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:16:55,519 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 3282 transitions. [2022-11-26 01:16:55,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-26 01:16:55,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 3282 transitions. [2022-11-26 01:16:55,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 01:16:55,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:16:55,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:55,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:55,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:55,735 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-11-26 01:16:55,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:16:55,736 INFO L85 PathProgramCache]: Analyzing trace with hash 368092710, now seen corresponding path program 1 times [2022-11-26 01:16:55,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:16:55,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162260388] [2022-11-26 01:16:55,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:16:55,737 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 [2022-11-26 01:16:55,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:16:55,737 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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) [2022-11-26 01:16:55,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:16:56,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:16:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:16:56,455 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 01:16:56,455 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:16:56,456 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (62 of 63 remaining) [2022-11-26 01:16:56,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK (61 of 63 remaining) [2022-11-26 01:16:56,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 63 remaining) [2022-11-26 01:16:56,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 63 remaining) [2022-11-26 01:16:56,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 63 remaining) [2022-11-26 01:16:56,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 63 remaining) [2022-11-26 01:16:56,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 63 remaining) [2022-11-26 01:16:56,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 63 remaining) [2022-11-26 01:16:56,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 63 remaining) [2022-11-26 01:16:56,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 63 remaining) [2022-11-26 01:16:56,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 63 remaining) [2022-11-26 01:16:56,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 63 remaining) [2022-11-26 01:16:56,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 63 remaining) [2022-11-26 01:16:56,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 63 remaining) [2022-11-26 01:16:56,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 63 remaining) [2022-11-26 01:16:56,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 63 remaining) [2022-11-26 01:16:56,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 63 remaining) [2022-11-26 01:16:56,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 63 remaining) [2022-11-26 01:16:56,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 63 remaining) [2022-11-26 01:16:56,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 63 remaining) [2022-11-26 01:16:56,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 63 remaining) [2022-11-26 01:16:56,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 63 remaining) [2022-11-26 01:16:56,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 63 remaining) [2022-11-26 01:16:56,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 63 remaining) [2022-11-26 01:16:56,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (38 of 63 remaining) [2022-11-26 01:16:56,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 63 remaining) [2022-11-26 01:16:56,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 63 remaining) [2022-11-26 01:16:56,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK (35 of 63 remaining) [2022-11-26 01:16:56,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 63 remaining) [2022-11-26 01:16:56,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 63 remaining) [2022-11-26 01:16:56,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 63 remaining) [2022-11-26 01:16:56,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 63 remaining) [2022-11-26 01:16:56,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 63 remaining) [2022-11-26 01:16:56,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 63 remaining) [2022-11-26 01:16:56,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 63 remaining) [2022-11-26 01:16:56,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 63 remaining) [2022-11-26 01:16:56,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK (26 of 63 remaining) [2022-11-26 01:16:56,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 63 remaining) [2022-11-26 01:16:56,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 63 remaining) [2022-11-26 01:16:56,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK (23 of 63 remaining) [2022-11-26 01:16:56,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 63 remaining) [2022-11-26 01:16:56,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 63 remaining) [2022-11-26 01:16:56,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK (20 of 63 remaining) [2022-11-26 01:16:56,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 63 remaining) [2022-11-26 01:16:56,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 63 remaining) [2022-11-26 01:16:56,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 63 remaining) [2022-11-26 01:16:56,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 63 remaining) [2022-11-26 01:16:56,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 63 remaining) [2022-11-26 01:16:56,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 63 remaining) [2022-11-26 01:16:56,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 63 remaining) [2022-11-26 01:16:56,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 63 remaining) [2022-11-26 01:16:56,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 63 remaining) [2022-11-26 01:16:56,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 63 remaining) [2022-11-26 01:16:56,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 63 remaining) [2022-11-26 01:16:56,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 63 remaining) [2022-11-26 01:16:56,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 63 remaining) [2022-11-26 01:16:56,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 63 remaining) [2022-11-26 01:16:56,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 63 remaining) [2022-11-26 01:16:56,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 63 remaining) [2022-11-26 01:16:56,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 63 remaining) [2022-11-26 01:16:56,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 63 remaining) [2022-11-26 01:16:56,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 63 remaining) [2022-11-26 01:16:56,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 63 remaining) [2022-11-26 01:16:56,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -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 [2022-11-26 01:16:56,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:16:56,680 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:16:56,686 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 01:16:56,686 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:16:56,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:16:56 BasicIcfg [2022-11-26 01:16:56,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:16:56,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:16:56,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:16:56,747 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:16:56,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:02:26" (3/4) ... [2022-11-26 01:16:56,751 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:16:56,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:16:56,752 INFO L158 Benchmark]: Toolchain (without parser) took 872787.71ms. Allocated memory was 96.5MB in the beginning and 249.6MB in the end (delta: 153.1MB). Free memory was 69.4MB in the beginning and 53.0MB in the end (delta: 16.4MB). Peak memory consumption was 172.6MB. Max. memory is 16.1GB. [2022-11-26 01:16:56,752 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:16:56,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1439.98ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 69.4MB in the beginning and 90.1MB in the end (delta: -20.7MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2022-11-26 01:16:56,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.96ms. Allocated memory is still 130.0MB. Free memory was 90.1MB in the beginning and 86.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:16:56,753 INFO L158 Benchmark]: Boogie Preprocessor took 50.37ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 83.0MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:16:56,753 INFO L158 Benchmark]: RCFGBuilder took 1317.87ms. Allocated memory is still 130.0MB. Free memory was 83.0MB in the beginning and 69.3MB in the end (delta: 13.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2022-11-26 01:16:56,753 INFO L158 Benchmark]: TraceAbstraction took 869896.02ms. Allocated memory was 130.0MB in the beginning and 249.6MB in the end (delta: 119.5MB). Free memory was 68.5MB in the beginning and 53.0MB in the end (delta: 15.5MB). Peak memory consumption was 134.7MB. Max. memory is 16.1GB. [2022-11-26 01:16:56,753 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 249.6MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:16:56,755 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 96.5MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1439.98ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 69.4MB in the beginning and 90.1MB in the end (delta: -20.7MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.96ms. Allocated memory is still 130.0MB. Free memory was 90.1MB in the beginning and 86.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.37ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 83.0MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1317.87ms. Allocated memory is still 130.0MB. Free memory was 83.0MB in the beginning and 69.3MB in the end (delta: 13.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * TraceAbstraction took 869896.02ms. Allocated memory was 130.0MB in the beginning and 249.6MB in the end (delta: 119.5MB). Free memory was 68.5MB in the beginning and 53.0MB in the end (delta: 15.5MB). Peak memory consumption was 134.7MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 249.6MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 777.6s, 225 PlacesBefore, 96 PlacesAfterwards, 225 TransitionsBefore, 93 TransitionsAfterwards, 7144 CoEnabledTransitionPairs, 8 FixpointIterations, 120 TrivialSequentialCompositions, 117 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 256 TotalNumberOfCompositions, 36312 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12431, independent: 11700, independent conditional: 0, independent unconditional: 11700, dependent: 533, dependent conditional: 0, dependent unconditional: 533, unknown: 198, unknown conditional: 0, unknown unconditional: 198] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4972, independent: 4841, independent conditional: 0, independent unconditional: 4841, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 19, unknown conditional: 0, unknown unconditional: 19] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4972, independent: 4706, independent conditional: 0, independent unconditional: 4706, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 266, independent: 135, independent conditional: 0, independent unconditional: 135, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 19, unknown conditional: 0, unknown unconditional: 19] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46586, independent: 2846, independent conditional: 0, independent unconditional: 2846, dependent: 3835, dependent conditional: 0, dependent unconditional: 3835, unknown: 39905, unknown conditional: 0, unknown unconditional: 39905] ], Cache Queries: [ total: 12431, independent: 6859, independent conditional: 0, independent unconditional: 6859, dependent: 421, dependent conditional: 0, dependent unconditional: 421, unknown: 5151, unknown conditional: 0, unknown unconditional: 5151] , Statistics on independence cache: Total cache size (in pairs): 891, Positive cache size: 841, Positive conditional cache size: 0, Positive unconditional cache size: 841, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 18, Unknown conditional cache size: 0, Unknown unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1675. Possible FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={-2147483648:24}, d={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=0, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, d={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=1, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, my_drv_probe(&data)=0, probe_ret=0, ret=0, t1={3:0}, t2={4:0}] [L1750] COND TRUE 0 probe_ret==0 [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, status={7:0}, t1={3:0}, t2={4:0}] [L1723] 0 data->shared.a = 3 VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, status={7:0}, t1={3:0}, t2={4:0}] [L1726] 0 data->shared.b = 3 VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, data={-2147483648:0}, data={-2147483648:0}, dev={-2147483648:24}, status={7:0}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, dev={-2147483648:24}, t1={3:0}, t2={4:0}] [L1729] EXPR 0 data->shared.a [L1729] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={-2147483648:24}, arg={-2147483648:24}, arg={-2147483648:24}, data={-2147483648:0}, dev={-2147483648:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1744]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 241 locations, 63 error locations. Started 1 CEGAR loops. OverallTime: 869.7s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 73.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 777.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1353 SdHoareTripleChecker+Valid, 71.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1353 mSDsluCounter, 491 SdHoareTripleChecker+Invalid, 68.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 88 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2927 IncrementalHoareTripleChecker+Invalid, 3116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 311 mSDtfsCounter, 2927 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5657occurred in iteration=0, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 1397 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 101 ConstructedInterpolants, 7 QuantifiedInterpolants, 1323 SizeOfPredicates, 95 NumberOfNonLiveVariables, 3086 ConjunctsInSsa, 225 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 01:16:56,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21585fba-a92c-44bb-ac54-21ea456db492/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample