./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta --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 cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 --- 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-dbf71c6-m [2022-10-17 17:37:42,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:37:42,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:37:42,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:37:42,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:37:42,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:37:42,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:37:42,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:37:42,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:37:42,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:37:42,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:37:42,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:37:42,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:37:42,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:37:42,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:37:42,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:37:42,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:37:42,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:37:42,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:37:42,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:37:42,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:37:42,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:37:42,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:37:42,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:37:42,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:37:42,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:37:42,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:37:42,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:37:42,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:37:42,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:37:42,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:37:42,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:37:42,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:37:42,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:37:42,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:37:42,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:37:42,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:37:42,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:37:42,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:37:42,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:37:42,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:37:42,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-10-17 17:37:42,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:37:42,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:37:42,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:37:42,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:37:42,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:37:42,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:37:42,177 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:37:42,177 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:37:42,178 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:37:42,178 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:37:42,178 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:37:42,178 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:37:42,178 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:37:42,178 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:37:42,179 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:37:42,179 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:37:42,179 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:37:42,179 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:37:42,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:37:42,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:37:42,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:37:42,181 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:37:42,181 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:37:42,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:37:42,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:37:42,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:37:42,181 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 17:37:42,182 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 17:37:42,185 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 17:37:42,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:37:42,185 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 17:37:42,185 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:37:42,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:37:42,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:37:42,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:37:42,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:37:42,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:37:42,188 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:37:42,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:37:42,188 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:37:42,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:37:42,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:37:42,189 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 [2022-10-17 17:37:42,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:37:42,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:37:42,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:37:42,485 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:37:42,486 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:37:42,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2022-10-17 17:37:42,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data/4a18ce898/32ef048545d94b18b66a666d4db80ff1/FLAGd6605f60b [2022-10-17 17:37:43,244 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:37:43,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2022-10-17 17:37:43,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data/4a18ce898/32ef048545d94b18b66a666d4db80ff1/FLAGd6605f60b [2022-10-17 17:37:43,423 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data/4a18ce898/32ef048545d94b18b66a666d4db80ff1 [2022-10-17 17:37:43,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:37:43,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:37:43,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:37:43,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:37:43,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:37:43,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:37:43" (1/1) ... [2022-10-17 17:37:43,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c9c8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:43, skipping insertion in model container [2022-10-17 17:37:43,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:37:43" (1/1) ... [2022-10-17 17:37:43,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:37:43,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:37:44,049 WARN L230 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[33021,33034] [2022-10-17 17:37:44,374 WARN L230 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[84583,84596] [2022-10-17 17:37:44,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:37:44,409 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) [2022-10-17 17:37:44,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4317e2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:44, skipping insertion in model container [2022-10-17 17:37:44,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:37:44,411 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-10-17 17:37:44,413 INFO L158 Benchmark]: Toolchain (without parser) took 981.09ms. Allocated memory is still 115.3MB. Free memory was 84.3MB in the beginning and 68.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 17:37:44,414 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory is still 46.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:37:44,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 974.77ms. Allocated memory is still 115.3MB. Free memory was 84.1MB in the beginning and 68.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 17:37:44,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory is still 46.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 974.77ms. Allocated memory is still 115.3MB. Free memory was 84.1MB in the beginning and 68.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta --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 cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 --- 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-dbf71c6-m [2022-10-17 17:37:46,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:37:46,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:37:46,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:37:46,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:37:46,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:37:46,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:37:46,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:37:46,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:37:46,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:37:46,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:37:46,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:37:46,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:37:46,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:37:46,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:37:46,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:37:46,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:37:46,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:37:46,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:37:46,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:37:46,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:37:46,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:37:46,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:37:46,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:37:46,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:37:46,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:37:46,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:37:46,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:37:46,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:37:46,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:37:46,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:37:46,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:37:46,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:37:46,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:37:46,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:37:46,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:37:46,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:37:46,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:37:46,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:37:46,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:37:46,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:37:46,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-10-17 17:37:47,012 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:37:47,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:37:47,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:37:47,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:37:47,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:37:47,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:37:47,016 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:37:47,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:37:47,016 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:37:47,017 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:37:47,018 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:37:47,018 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:37:47,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:37:47,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:37:47,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:37:47,021 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:37:47,021 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:37:47,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:37:47,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:37:47,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:37:47,022 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 17:37:47,022 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 17:37:47,022 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 17:37:47,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:37:47,023 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 17:37:47,023 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 17:37:47,023 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 17:37:47,024 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:37:47,024 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:37:47,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:37:47,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 17:37:47,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:37:47,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:37:47,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:37:47,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:37:47,027 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-10-17 17:37:47,027 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 17:37:47,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:37:47,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 17:37:47,028 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 [2022-10-17 17:37:47,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:37:47,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:37:47,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:37:47,501 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:37:47,502 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:37:47,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2022-10-17 17:37:47,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data/745664d14/24976882e9964b02a2f76ee4ac47c8da/FLAGad973486f [2022-10-17 17:37:48,327 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:37:48,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2022-10-17 17:37:48,358 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data/745664d14/24976882e9964b02a2f76ee4ac47c8da/FLAGad973486f [2022-10-17 17:37:48,446 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/data/745664d14/24976882e9964b02a2f76ee4ac47c8da [2022-10-17 17:37:48,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:37:48,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:37:48,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:37:48,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:37:48,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:37:48,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:37:48" (1/1) ... [2022-10-17 17:37:48,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9258a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:48, skipping insertion in model container [2022-10-17 17:37:48,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:37:48" (1/1) ... [2022-10-17 17:37:48,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:37:48,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:37:49,177 WARN L230 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[33021,33034] [2022-10-17 17:37:49,497 WARN L230 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[84583,84596] [2022-10-17 17:37:49,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:37:49,520 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-10-17 17:37:49,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:37:49,580 WARN L230 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[33021,33034] [2022-10-17 17:37:49,675 WARN L230 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[84583,84596] [2022-10-17 17:37:49,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:37:49,687 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:37:49,713 WARN L230 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[33021,33034] [2022-10-17 17:37:49,844 WARN L230 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_164b2f17-de3c-42a2-91d8-c50dcee683a5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[84583,84596] [2022-10-17 17:37:49,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:37:49,912 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:37:49,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49 WrapperNode [2022-10-17 17:37:49,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:37:49,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:37:49,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:37:49,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:37:49,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:49,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,130 INFO L138 Inliner]: procedures = 180, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3034 [2022-10-17 17:37:50,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:37:50,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:37:50,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:37:50,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:37:50,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,324 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:37:50,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:37:50,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:37:50,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:37:50,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (1/1) ... [2022-10-17 17:37:50,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:37:50,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:37:50,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:37:50,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:37:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-10-17 17:37:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 17:37:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 17:37:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 17:37:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 17:37:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 17:37:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:37:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:37:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:37:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:37:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 17:37:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:37:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:37:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 17:37:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 17:37:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:37:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:37:50,848 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:37:50,851 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:37:50,854 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 17:37:58,452 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:37:58,481 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:37:58,481 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-10-17 17:37:58,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:37:58 BoogieIcfgContainer [2022-10-17 17:37:58,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:37:58,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:37:58,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:37:58,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:37:58,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:37:48" (1/3) ... [2022-10-17 17:37:58,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31671822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:37:58, skipping insertion in model container [2022-10-17 17:37:58,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:37:49" (2/3) ... [2022-10-17 17:37:58,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31671822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:37:58, skipping insertion in model container [2022-10-17 17:37:58,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:37:58" (3/3) ... [2022-10-17 17:37:58,499 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-2.i [2022-10-17 17:37:58,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:37:58,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 536 error locations. [2022-10-17 17:37:58,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:37:58,634 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;@239d89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:37:58,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 536 error locations. [2022-10-17 17:37:58,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 2071 states, 1032 states have (on average 2.123062015503876) internal successors, (2191), 2065 states have internal predecessors, (2191), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-10-17 17:37:58,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 17:37:58,655 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:37:58,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 17:37:58,657 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 533 more)] === [2022-10-17 17:37:58,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:37:58,665 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2022-10-17 17:37:58,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:37:58,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189948125] [2022-10-17 17:37:58,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:37:58,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:37:58,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:37:58,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:37:58,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 17:37:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:37:58,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:37:58,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:37:58,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 17:37:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:37:58,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:37:58,973 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:37:58,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189948125] [2022-10-17 17:37:58,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189948125] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:37:58,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:37:58,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:37:58,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953192344] [2022-10-17 17:37:58,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:37:58,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:37:58,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:37:59,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:37:59,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:37:59,050 INFO L87 Difference]: Start difference. First operand has 2071 states, 1032 states have (on average 2.123062015503876) internal successors, (2191), 2065 states have internal predecessors, (2191), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:38:02,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:38:02,705 INFO L93 Difference]: Finished difference Result 2235 states and 3301 transitions. [2022-10-17 17:38:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:38:02,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-17 17:38:02,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:38:02,744 INFO L225 Difference]: With dead ends: 2235 [2022-10-17 17:38:02,744 INFO L226 Difference]: Without dead ends: 2233 [2022-10-17 17:38:02,745 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 [2022-10-17 17:38:02,749 INFO L413 NwaCegarLoop]: 2636 mSDtfsCounter, 1985 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2488 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-17 17:38:02,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2488 Valid, 2785 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-10-17 17:38:02,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2022-10-17 17:38:03,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 2055. [2022-10-17 17:38:03,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 1032 states have (on average 2.0416666666666665) internal successors, (2107), 2049 states have internal predecessors, (2107), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-10-17 17:38:03,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 3113 transitions. [2022-10-17 17:38:03,399 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 3113 transitions. Word has length 3 [2022-10-17 17:38:03,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:38:03,400 INFO L495 AbstractCegarLoop]: Abstraction has 2055 states and 3113 transitions. [2022-10-17 17:38:03,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:38:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 3113 transitions. [2022-10-17 17:38:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 17:38:03,402 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:38:03,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 17:38:03,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-10-17 17:38:03,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:38:03,616 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 533 more)] === [2022-10-17 17:38:03,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:38:03,618 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2022-10-17 17:38:03,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:38:03,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001554638] [2022-10-17 17:38:03,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:38:03,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:38:03,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:38:03,626 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:38:03,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 17:38:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:38:03,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 17:38:03,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:38:03,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 17:38:03,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:38:03,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:38:03,804 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:38:03,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001554638] [2022-10-17 17:38:03,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001554638] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:38:03,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:38:03,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:38:03,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386910756] [2022-10-17 17:38:03,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:38:03,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:38:03,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:38:03,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:38:03,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:38:03,815 INFO L87 Difference]: Start difference. First operand 2055 states and 3113 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:38:08,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:38:08,887 INFO L93 Difference]: Finished difference Result 3463 states and 5553 transitions. [2022-10-17 17:38:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:38:08,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-17 17:38:08,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:38:08,915 INFO L225 Difference]: With dead ends: 3463 [2022-10-17 17:38:08,915 INFO L226 Difference]: Without dead ends: 3463 [2022-10-17 17:38:08,915 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 [2022-10-17 17:38:08,920 INFO L413 NwaCegarLoop]: 3417 mSDtfsCounter, 1440 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 5500 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-10-17 17:38:08,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 5500 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-10-17 17:38:08,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2022-10-17 17:38:09,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3177. [2022-10-17 17:38:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3177 states, 1655 states have (on average 2.015105740181269) internal successors, (3335), 3171 states have internal predecessors, (3335), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2022-10-17 17:38:09,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 5341 transitions. [2022-10-17 17:38:09,474 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 5341 transitions. Word has length 3 [2022-10-17 17:38:09,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:38:09,474 INFO L495 AbstractCegarLoop]: Abstraction has 3177 states and 5341 transitions. [2022-10-17 17:38:09,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:38:09,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 5341 transitions. [2022-10-17 17:38:09,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:38:09,475 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:38:09,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:38:09,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 17:38:09,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:38:09,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 533 more)] === [2022-10-17 17:38:09,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:38:09,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1466973012, now seen corresponding path program 1 times [2022-10-17 17:38:09,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:38:09,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757511124] [2022-10-17 17:38:09,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:38:09,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:38:09,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:38:09,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:38:09,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164b2f17-de3c-42a2-91d8-c50dcee683a5/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 17:38:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:38:09,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 17:38:09,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:38:09,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 17:38:09,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 17:38:09,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 17:38:09,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 17:38:10,004 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-10-17 17:38:10,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 17:38:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:38:10,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:38:10,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:38:10,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757511124] [2022-10-17 17:38:10,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757511124] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:38:10,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:38:10,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:38:10,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854085915] [2022-10-17 17:38:10,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:38:10,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:38:10,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:38:10,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:38:10,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:38:10,047 INFO L87 Difference]: Start difference. First operand 3177 states and 5341 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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)