./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH --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 a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:01:02,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:01:02,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:01:02,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:01:02,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:01:02,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:01:02,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:01:02,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:01:02,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:01:02,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:01:02,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:01:02,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:01:02,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:01:02,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:01:02,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:01:02,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:01:02,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:01:02,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:01:02,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:01:02,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:01:02,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:01:02,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:01:02,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:01:02,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:01:02,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:01:02,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:01:02,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:01:02,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:01:02,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:01:02,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:01:02,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:01:02,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:01:02,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:01:02,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:01:02,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:01:02,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:01:02,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:01:02,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:01:02,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:01:02,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:01:02,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:01:02,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-03 05:01:02,399 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:01:02,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:01:02,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:01:02,401 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:01:02,402 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:01:02,402 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:01:02,402 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:01:02,403 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:01:02,403 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:01:02,405 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:01:02,407 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:01:02,407 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:01:02,408 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:01:02,408 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:01:02,408 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:01:02,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 05:01:02,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 05:01:02,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:01:02,409 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:01:02,410 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 05:01:02,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:01:02,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:01:02,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:01:02,411 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 05:01:02,411 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 05:01:02,411 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 05:01:02,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:01:02,413 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:01:02,413 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:01:02,413 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:01:02,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:01:02,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:01:02,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:01:02,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:01:02,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:01:02,414 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:01:02,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:01:02,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:01:02,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:01:02,415 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 [2021-11-03 05:01:02,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:01:02,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:01:02,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:01:02,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:01:02,777 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:01:02,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-03 05:01:02,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data/31d0f6e85/41a0ac743adb4f5fb874a0342ed70c95/FLAG9e7b843b1 [2021-11-03 05:01:03,463 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:01:03,464 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-03 05:01:03,480 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data/31d0f6e85/41a0ac743adb4f5fb874a0342ed70c95/FLAG9e7b843b1 [2021-11-03 05:01:03,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data/31d0f6e85/41a0ac743adb4f5fb874a0342ed70c95 [2021-11-03 05:01:03,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:01:03,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:01:03,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:01:03,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:01:03,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:01:03,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:01:03" (1/1) ... [2021-11-03 05:01:03,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20092548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:03, skipping insertion in model container [2021-11-03 05:01:03,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:01:03" (1/1) ... [2021-11-03 05:01:03,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:01:03,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:01:04,207 WARN L228 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_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-03 05:01:04,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:04,352 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 05:01:04,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4cc601b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:04, skipping insertion in model container [2021-11-03 05:01:04,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:01:04,354 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:01:04,357 INFO L168 Benchmark]: Toolchain (without parser) took 675.52 ms. Allocated memory is still 81.8 MB. Free memory was 59.1 MB in the beginning and 52.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:01:04,359 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:01:04,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.14 ms. Allocated memory is still 81.8 MB. Free memory was 58.9 MB in the beginning and 52.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:01:04,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 673.14 ms. Allocated memory is still 81.8 MB. Free memory was 58.9 MB in the beginning and 52.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 751]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH --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 a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:01:06,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:01:06,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:01:06,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:01:06,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:01:06,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:01:06,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:01:06,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:01:06,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:01:06,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:01:06,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:01:06,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:01:06,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:01:06,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:01:06,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:01:06,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:01:06,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:01:06,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:01:06,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:01:06,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:01:06,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:01:06,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:01:06,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:01:06,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:01:06,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:01:06,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:01:06,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:01:06,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:01:06,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:01:06,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:01:06,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:01:06,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:01:06,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:01:06,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:01:06,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:01:06,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:01:06,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:01:06,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:01:06,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:01:06,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:01:06,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:01:06,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-03 05:01:06,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:01:06,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:01:06,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:01:06,776 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:01:06,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:01:06,777 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:01:06,777 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:01:06,777 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:01:06,777 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:01:06,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 05:01:06,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 05:01:06,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:01:06,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:01:06,781 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 05:01:06,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:01:06,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:01:06,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:01:06,782 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 05:01:06,783 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 05:01:06,783 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 05:01:06,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:01:06,783 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:01:06,783 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:01:06,784 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:01:06,784 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:01:06,784 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:01:06,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:01:06,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:01:06,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:01:06,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:01:06,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:01:06,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:01:06,786 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:01:06,786 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:01:06,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:01:06,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:01:06,787 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_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 [2021-11-03 05:01:07,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:01:07,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:01:07,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:01:07,217 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:01:07,217 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:01:07,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-03 05:01:07,292 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data/e8f849606/2938aa77c9594e6b97b4df36f517603c/FLAG4cb51b6ae [2021-11-03 05:01:07,973 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:01:07,974 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-03 05:01:07,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data/e8f849606/2938aa77c9594e6b97b4df36f517603c/FLAG4cb51b6ae [2021-11-03 05:01:08,144 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/data/e8f849606/2938aa77c9594e6b97b4df36f517603c [2021-11-03 05:01:08,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:01:08,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:01:08,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:01:08,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:01:08,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:01:08,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:01:08" (1/1) ... [2021-11-03 05:01:08,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218b1920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:08, skipping insertion in model container [2021-11-03 05:01:08,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:01:08" (1/1) ... [2021-11-03 05:01:08,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:01:08,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:01:08,614 WARN L228 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_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-03 05:01:08,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:08,726 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:01:08,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:01:08,783 WARN L228 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_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-03 05:01:08,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:08,887 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:01:08,934 WARN L228 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_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-03 05:01:09,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:09,081 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:01:09,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09 WrapperNode [2021-11-03 05:01:09,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:01:09,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:01:09,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:01:09,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:01:09,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:01:09,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:01:09,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:01:09,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:01:09,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:01:09,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:01:09,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:01:09,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:01:09,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (1/1) ... [2021-11-03 05:01:09,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:01:09,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:01:09,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:01:09,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:01:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:01:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:01:09,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:01:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:01:09,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:01:09,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:01:09,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:01:09,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:01:09,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:01:09,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:01:09,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:01:12,649 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:01:12,650 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-03 05:01:12,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:01:12 BoogieIcfgContainer [2021-11-03 05:01:12,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:01:12,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:01:12,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:01:12,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:01:12,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:01:08" (1/3) ... [2021-11-03 05:01:12,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e66e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:01:12, skipping insertion in model container [2021-11-03 05:01:12,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:09" (2/3) ... [2021-11-03 05:01:12,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e66e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:01:12, skipping insertion in model container [2021-11-03 05:01:12,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:01:12" (3/3) ... [2021-11-03 05:01:12,662 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-1.i [2021-11-03 05:01:12,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:01:12,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 339 error locations. [2021-11-03 05:01:12,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:01:12,719 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:01:12,720 INFO L340 AbstractCegarLoop]: Starting to check reachability of 339 error locations. [2021-11-03 05:01:12,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 686 states, 346 states have (on average 2.222543352601156) internal successors, (769), 685 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 05:01:12,767 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:12,767 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 05:01:12,768 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:12,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:12,780 INFO L85 PathProgramCache]: Analyzing trace with hash 28698764, now seen corresponding path program 1 times [2021-11-03 05:01:12,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:12,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769433356] [2021-11-03 05:01:12,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:12,795 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:12,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:12,799 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:12,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:01:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:12,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:01:12,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:13,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:13,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:13,077 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:13,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769433356] [2021-11-03 05:01:13,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769433356] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:13,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:13,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:01:13,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071169712] [2021-11-03 05:01:13,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:01:13,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:13,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:01:13,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:01:13,115 INFO L87 Difference]: Start difference. First operand has 686 states, 346 states have (on average 2.222543352601156) internal successors, (769), 685 states have internal predecessors, (769), 0 states have call successors, (0), 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, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-11-03 05:01:13,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:13,176 INFO L93 Difference]: Finished difference Result 677 states and 715 transitions. [2021-11-03 05:01:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:01:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2021-11-03 05:01:13,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:13,196 INFO L225 Difference]: With dead ends: 677 [2021-11-03 05:01:13,197 INFO L226 Difference]: Without dead ends: 675 [2021-11-03 05:01:13,198 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:01:13,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2021-11-03 05:01:13,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2021-11-03 05:01:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 341 states have (on average 2.090909090909091) internal successors, (713), 674 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 713 transitions. [2021-11-03 05:01:13,273 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 713 transitions. Word has length 5 [2021-11-03 05:01:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:13,274 INFO L470 AbstractCegarLoop]: Abstraction has 675 states and 713 transitions. [2021-11-03 05:01:13,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-11-03 05:01:13,274 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 713 transitions. [2021-11-03 05:01:13,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 05:01:13,275 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:13,275 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 05:01:13,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:13,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:13,487 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:13,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:13,487 INFO L85 PathProgramCache]: Analyzing trace with hash 28698826, now seen corresponding path program 1 times [2021-11-03 05:01:13,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:13,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50689947] [2021-11-03 05:01:13,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:13,488 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:13,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:13,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:13,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:01:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:13,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:01:13,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:13,703 INFO L388 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 [2021-11-03 05:01:13,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:13,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:13,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:13,754 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:13,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50689947] [2021-11-03 05:01:13,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50689947] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:13,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:13,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:01:13,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231193801] [2021-11-03 05:01:13,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:01:13,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:13,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:01:13,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:01:13,764 INFO L87 Difference]: Start difference. First operand 675 states and 713 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) [2021-11-03 05:01:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:15,179 INFO L93 Difference]: Finished difference Result 633 states and 672 transitions. [2021-11-03 05:01:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:01:15,181 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 [2021-11-03 05:01:15,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:15,186 INFO L225 Difference]: With dead ends: 633 [2021-11-03 05:01:15,186 INFO L226 Difference]: Without dead ends: 633 [2021-11-03 05:01:15,187 INFO L786 BasicCegarLoop]: 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 [2021-11-03 05:01:15,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2021-11-03 05:01:15,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 626. [2021-11-03 05:01:15,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 341 states have (on average 1.9472140762463344) internal successors, (664), 625 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:15,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 664 transitions. [2021-11-03 05:01:15,230 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 664 transitions. Word has length 5 [2021-11-03 05:01:15,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:15,231 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 664 transitions. [2021-11-03 05:01:15,231 INFO L471 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) [2021-11-03 05:01:15,232 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 664 transitions. [2021-11-03 05:01:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 05:01:15,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:15,233 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 05:01:15,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:15,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:15,444 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:15,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:15,445 INFO L85 PathProgramCache]: Analyzing trace with hash 28698827, now seen corresponding path program 1 times [2021-11-03 05:01:15,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:15,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702442417] [2021-11-03 05:01:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:15,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:15,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:15,451 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:15,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:01:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:15,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:01:15,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:15,595 INFO L388 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 [2021-11-03 05:01:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:15,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:15,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:15,705 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:15,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702442417] [2021-11-03 05:01:15,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702442417] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:15,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:15,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 05:01:15,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108178639] [2021-11-03 05:01:15,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:01:15,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:15,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:01:15,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:01:15,712 INFO L87 Difference]: Start difference. First operand 626 states and 664 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:18,739 INFO L93 Difference]: Finished difference Result 699 states and 741 transitions. [2021-11-03 05:01:18,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:01:18,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 05:01:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:18,750 INFO L225 Difference]: With dead ends: 699 [2021-11-03 05:01:18,750 INFO L226 Difference]: Without dead ends: 699 [2021-11-03 05:01:18,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:01:18,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-11-03 05:01:18,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 648. [2021-11-03 05:01:18,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 373 states have (on average 1.9302949061662198) internal successors, (720), 647 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 720 transitions. [2021-11-03 05:01:18,774 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 720 transitions. Word has length 5 [2021-11-03 05:01:18,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:18,774 INFO L470 AbstractCegarLoop]: Abstraction has 648 states and 720 transitions. [2021-11-03 05:01:18,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:18,775 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 720 transitions. [2021-11-03 05:01:18,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 05:01:18,776 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:18,776 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 05:01:18,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:18,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:18,987 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr322REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:18,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:18,988 INFO L85 PathProgramCache]: Analyzing trace with hash 890510813, now seen corresponding path program 1 times [2021-11-03 05:01:18,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:18,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75858785] [2021-11-03 05:01:18,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:18,989 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:18,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:18,990 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:18,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:01:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:19,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:01:19,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:19,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:19,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:19,125 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:19,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75858785] [2021-11-03 05:01:19,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75858785] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:19,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:19,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:01:19,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214184947] [2021-11-03 05:01:19,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:01:19,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:19,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:01:19,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:01:19,128 INFO L87 Difference]: Start difference. First operand 648 states and 720 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:19,222 INFO L93 Difference]: Finished difference Result 1239 states and 1372 transitions. [2021-11-03 05:01:19,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:01:19,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-03 05:01:19,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:19,230 INFO L225 Difference]: With dead ends: 1239 [2021-11-03 05:01:19,230 INFO L226 Difference]: Without dead ends: 1239 [2021-11-03 05:01:19,230 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:01:19,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2021-11-03 05:01:19,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 979. [2021-11-03 05:01:19,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 704 states have (on average 1.9488636363636365) internal successors, (1372), 978 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:19,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1372 transitions. [2021-11-03 05:01:19,259 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1372 transitions. Word has length 6 [2021-11-03 05:01:19,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:19,260 INFO L470 AbstractCegarLoop]: Abstraction has 979 states and 1372 transitions. [2021-11-03 05:01:19,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:19,260 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1372 transitions. [2021-11-03 05:01:19,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:01:19,261 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:19,261 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:19,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:19,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:19,479 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:19,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:19,480 INFO L85 PathProgramCache]: Analyzing trace with hash 2013913556, now seen corresponding path program 1 times [2021-11-03 05:01:19,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:19,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341558854] [2021-11-03 05:01:19,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:19,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:19,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:19,482 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:19,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:01:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:19,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:01:19,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:19,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:19,671 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:19,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341558854] [2021-11-03 05:01:19,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341558854] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:19,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:19,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:01:19,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594678646] [2021-11-03 05:01:19,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:01:19,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:19,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:01:19,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:01:19,682 INFO L87 Difference]: Start difference. First operand 979 states and 1372 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:19,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:19,711 INFO L93 Difference]: Finished difference Result 919 states and 1286 transitions. [2021-11-03 05:01:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:01:19,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-03 05:01:19,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:19,717 INFO L225 Difference]: With dead ends: 919 [2021-11-03 05:01:19,717 INFO L226 Difference]: Without dead ends: 919 [2021-11-03 05:01:19,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:01:19,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-11-03 05:01:19,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2021-11-03 05:01:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 668 states have (on average 1.9251497005988023) internal successors, (1286), 918 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1286 transitions. [2021-11-03 05:01:19,748 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1286 transitions. Word has length 11 [2021-11-03 05:01:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:19,748 INFO L470 AbstractCegarLoop]: Abstraction has 919 states and 1286 transitions. [2021-11-03 05:01:19,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:19,749 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1286 transitions. [2021-11-03 05:01:19,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 05:01:19,749 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:19,749 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:19,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 05:01:19,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:19,961 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:19,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:19,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1659327634, now seen corresponding path program 1 times [2021-11-03 05:01:19,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:19,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399836292] [2021-11-03 05:01:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:19,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:19,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:19,964 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:19,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:01:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:20,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:01:20,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:20,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:20,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:20,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:20,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399836292] [2021-11-03 05:01:20,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399836292] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:20,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:20,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:01:20,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591889197] [2021-11-03 05:01:20,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:01:20,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:20,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:01:20,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:01:20,189 INFO L87 Difference]: Start difference. First operand 919 states and 1286 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:20,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:20,276 INFO L93 Difference]: Finished difference Result 891 states and 1230 transitions. [2021-11-03 05:01:20,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:01:20,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 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 13 [2021-11-03 05:01:20,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:20,281 INFO L225 Difference]: With dead ends: 891 [2021-11-03 05:01:20,282 INFO L226 Difference]: Without dead ends: 891 [2021-11-03 05:01:20,282 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:01:20,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-11-03 05:01:20,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 889. [2021-11-03 05:01:20,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 652 states have (on average 1.883435582822086) internal successors, (1228), 888 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1228 transitions. [2021-11-03 05:01:20,303 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1228 transitions. Word has length 13 [2021-11-03 05:01:20,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:20,303 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1228 transitions. [2021-11-03 05:01:20,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1228 transitions. [2021-11-03 05:01:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 05:01:20,305 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:20,305 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:20,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:20,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:20,516 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:20,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:20,517 INFO L85 PathProgramCache]: Analyzing trace with hash 913198236, now seen corresponding path program 1 times [2021-11-03 05:01:20,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:20,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929816955] [2021-11-03 05:01:20,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:20,518 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:20,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:20,519 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:20,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:01:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:20,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:01:20,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:20,669 INFO L388 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 [2021-11-03 05:01:20,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:20,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:20,907 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:20,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929816955] [2021-11-03 05:01:20,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929816955] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:20,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:20,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:01:20,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389040390] [2021-11-03 05:01:20,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:01:20,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:20,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:01:20,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:01:20,910 INFO L87 Difference]: Start difference. First operand 889 states and 1228 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:22,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:22,129 INFO L93 Difference]: Finished difference Result 959 states and 1305 transitions. [2021-11-03 05:01:22,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:01:22,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2021-11-03 05:01:22,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:22,136 INFO L225 Difference]: With dead ends: 959 [2021-11-03 05:01:22,136 INFO L226 Difference]: Without dead ends: 959 [2021-11-03 05:01:22,137 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:01:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2021-11-03 05:01:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 885. [2021-11-03 05:01:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 652 states have (on average 1.8711656441717792) internal successors, (1220), 884 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1220 transitions. [2021-11-03 05:01:22,161 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1220 transitions. Word has length 27 [2021-11-03 05:01:22,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:22,162 INFO L470 AbstractCegarLoop]: Abstraction has 885 states and 1220 transitions. [2021-11-03 05:01:22,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:22,163 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1220 transitions. [2021-11-03 05:01:22,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 05:01:22,164 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:22,164 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:22,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:22,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:22,375 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:22,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash 913198237, now seen corresponding path program 1 times [2021-11-03 05:01:22,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:22,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103613868] [2021-11-03 05:01:22,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:22,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:22,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:22,387 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:22,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:01:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:22,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:01:22,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:22,565 INFO L388 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 [2021-11-03 05:01:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:22,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:23,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:23,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103613868] [2021-11-03 05:01:23,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103613868] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:23,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:23,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 05:01:23,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77555818] [2021-11-03 05:01:23,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:01:23,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:23,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:01:23,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:01:23,311 INFO L87 Difference]: Start difference. First operand 885 states and 1220 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:26,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:26,415 INFO L93 Difference]: Finished difference Result 1006 states and 1323 transitions. [2021-11-03 05:01:26,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:01:26,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 27 [2021-11-03 05:01:26,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:26,422 INFO L225 Difference]: With dead ends: 1006 [2021-11-03 05:01:26,422 INFO L226 Difference]: Without dead ends: 1006 [2021-11-03 05:01:26,423 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:01:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-11-03 05:01:26,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 881. [2021-11-03 05:01:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 652 states have (on average 1.8588957055214723) internal successors, (1212), 880 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1212 transitions. [2021-11-03 05:01:26,445 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1212 transitions. Word has length 27 [2021-11-03 05:01:26,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:26,448 INFO L470 AbstractCegarLoop]: Abstraction has 881 states and 1212 transitions. [2021-11-03 05:01:26,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:26,449 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1212 transitions. [2021-11-03 05:01:26,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 05:01:26,450 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:26,450 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:26,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:26,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:26,663 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:26,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:26,664 INFO L85 PathProgramCache]: Analyzing trace with hash 944973104, now seen corresponding path program 1 times [2021-11-03 05:01:26,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:26,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005882126] [2021-11-03 05:01:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:26,665 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:26,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:26,667 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:26,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:01:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:26,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:01:26,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:27,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:27,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:27,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005882126] [2021-11-03 05:01:27,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005882126] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:27,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:27,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:01:27,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186474685] [2021-11-03 05:01:27,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:01:27,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:27,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:01:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:01:27,160 INFO L87 Difference]: Start difference. First operand 881 states and 1212 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:27,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:27,218 INFO L93 Difference]: Finished difference Result 869 states and 1192 transitions. [2021-11-03 05:01:27,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:01:27,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-11-03 05:01:27,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:27,223 INFO L225 Difference]: With dead ends: 869 [2021-11-03 05:01:27,223 INFO L226 Difference]: Without dead ends: 869 [2021-11-03 05:01:27,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:01:27,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2021-11-03 05:01:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2021-11-03 05:01:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 640 states have (on average 1.8625) internal successors, (1192), 868 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:27,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1192 transitions. [2021-11-03 05:01:27,254 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1192 transitions. Word has length 42 [2021-11-03 05:01:27,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:27,256 INFO L470 AbstractCegarLoop]: Abstraction has 869 states and 1192 transitions. [2021-11-03 05:01:27,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:27,257 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1192 transitions. [2021-11-03 05:01:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 05:01:27,262 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:27,262 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:27,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:27,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:27,474 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:27,475 INFO L85 PathProgramCache]: Analyzing trace with hash 29098340, now seen corresponding path program 1 times [2021-11-03 05:01:27,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:27,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012857555] [2021-11-03 05:01:27,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:27,475 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:27,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:27,476 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:27,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:01:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:27,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:01:27,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:28,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:28,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:28,514 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:28,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012857555] [2021-11-03 05:01:28,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012857555] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:28,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:28,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:01:28,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214151039] [2021-11-03 05:01:28,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:01:28,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:28,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:01:28,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:01:28,516 INFO L87 Difference]: Start difference. First operand 869 states and 1192 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:28,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:28,603 INFO L93 Difference]: Finished difference Result 819 states and 1087 transitions. [2021-11-03 05:01:28,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:01:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2021-11-03 05:01:28,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:28,608 INFO L225 Difference]: With dead ends: 819 [2021-11-03 05:01:28,608 INFO L226 Difference]: Without dead ends: 819 [2021-11-03 05:01:28,609 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:01:28,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2021-11-03 05:01:28,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2021-11-03 05:01:28,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 590 states have (on average 1.8423728813559321) internal successors, (1087), 818 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:28,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1087 transitions. [2021-11-03 05:01:28,628 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1087 transitions. Word has length 50 [2021-11-03 05:01:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:28,629 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 1087 transitions. [2021-11-03 05:01:28,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:28,629 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1087 transitions. [2021-11-03 05:01:28,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 05:01:28,630 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:28,630 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:28,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:28,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:28,843 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:28,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:28,843 INFO L85 PathProgramCache]: Analyzing trace with hash -839399161, now seen corresponding path program 1 times [2021-11-03 05:01:28,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:28,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208566602] [2021-11-03 05:01:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:28,844 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:28,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:28,845 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:28,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:01:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:29,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:01:29,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:29,295 INFO L388 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 [2021-11-03 05:01:29,301 INFO L388 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 [2021-11-03 05:01:30,029 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-03 05:01:30,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 29 [2021-11-03 05:01:30,037 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 05:01:30,037 INFO L388 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 26 treesize of output 22 [2021-11-03 05:01:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:30,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:35,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:35,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208566602] [2021-11-03 05:01:35,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208566602] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:35,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:35,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 05:01:35,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673672836] [2021-11-03 05:01:35,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:01:35,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:35,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:01:35,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-03 05:01:35,191 INFO L87 Difference]: Start difference. First operand 819 states and 1087 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:44,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:44,557 INFO L93 Difference]: Finished difference Result 794 states and 1025 transitions. [2021-11-03 05:01:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:01:44,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 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 53 [2021-11-03 05:01:44,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:44,563 INFO L225 Difference]: With dead ends: 794 [2021-11-03 05:01:44,563 INFO L226 Difference]: Without dead ends: 794 [2021-11-03 05:01:44,563 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=26, Invalid=28, Unknown=2, NotChecked=0, Total=56 [2021-11-03 05:01:44,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2021-11-03 05:01:44,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 749. [2021-11-03 05:01:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 558 states have (on average 1.6935483870967742) internal successors, (945), 748 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:44,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 945 transitions. [2021-11-03 05:01:44,582 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 945 transitions. Word has length 53 [2021-11-03 05:01:44,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:44,583 INFO L470 AbstractCegarLoop]: Abstraction has 749 states and 945 transitions. [2021-11-03 05:01:44,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:44,583 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 945 transitions. [2021-11-03 05:01:44,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 05:01:44,584 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:44,585 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:44,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:44,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:44,799 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:44,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:44,799 INFO L85 PathProgramCache]: Analyzing trace with hash -416260760, now seen corresponding path program 1 times [2021-11-03 05:01:44,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:44,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679944149] [2021-11-03 05:01:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:44,801 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:44,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:44,802 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:44,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:01:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:45,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:01:45,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:45,270 INFO L388 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 [2021-11-03 05:01:45,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 17 [2021-11-03 05:01:45,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-03 05:01:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:45,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:45,522 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:45,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679944149] [2021-11-03 05:01:45,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679944149] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:45,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:45,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:01:45,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745685319] [2021-11-03 05:01:45,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:01:45,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:45,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:01:45,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:01:45,524 INFO L87 Difference]: Start difference. First operand 749 states and 945 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:48,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:48,443 INFO L93 Difference]: Finished difference Result 1018 states and 1234 transitions. [2021-11-03 05:01:48,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 05:01:48,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-11-03 05:01:48,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:48,449 INFO L225 Difference]: With dead ends: 1018 [2021-11-03 05:01:48,449 INFO L226 Difference]: Without dead ends: 1018 [2021-11-03 05:01:48,450 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:01:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2021-11-03 05:01:48,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 748. [2021-11-03 05:01:48,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 558 states have (on average 1.689964157706093) internal successors, (943), 747 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 943 transitions. [2021-11-03 05:01:48,470 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 943 transitions. Word has length 59 [2021-11-03 05:01:48,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:48,470 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 943 transitions. [2021-11-03 05:01:48,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:48,471 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 943 transitions. [2021-11-03 05:01:48,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 05:01:48,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:48,472 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:48,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-03 05:01:48,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:48,685 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:48,685 INFO L85 PathProgramCache]: Analyzing trace with hash -19181353, now seen corresponding path program 1 times [2021-11-03 05:01:48,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:48,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111262265] [2021-11-03 05:01:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:48,686 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:48,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:48,686 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:48,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 05:01:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:49,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:01:49,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:49,198 INFO L388 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 [2021-11-03 05:01:49,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 15 [2021-11-03 05:01:49,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:01:49,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-03 05:01:49,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-03 05:01:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:49,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:49,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:49,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111262265] [2021-11-03 05:01:49,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111262265] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:49,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:49,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-03 05:01:49,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282606592] [2021-11-03 05:01:49,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:01:49,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:49,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:01:49,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:01:49,897 INFO L87 Difference]: Start difference. First operand 748 states and 943 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:58,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:58,544 INFO L93 Difference]: Finished difference Result 889 states and 1101 transitions. [2021-11-03 05:01:58,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 05:01:58,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 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 60 [2021-11-03 05:01:58,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:58,549 INFO L225 Difference]: With dead ends: 889 [2021-11-03 05:01:58,550 INFO L226 Difference]: Without dead ends: 889 [2021-11-03 05:01:58,550 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:01:58,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2021-11-03 05:01:58,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 747. [2021-11-03 05:01:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 558 states have (on average 1.6863799283154122) internal successors, (941), 746 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:58,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 941 transitions. [2021-11-03 05:01:58,567 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 941 transitions. Word has length 60 [2021-11-03 05:01:58,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:58,568 INFO L470 AbstractCegarLoop]: Abstraction has 747 states and 941 transitions. [2021-11-03 05:01:58,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 941 transitions. [2021-11-03 05:01:58,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 05:01:58,569 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:58,569 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:58,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:58,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:58,783 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:58,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:58,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1927168386, now seen corresponding path program 1 times [2021-11-03 05:01:58,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:58,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311867543] [2021-11-03 05:01:58,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:58,784 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:58,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:58,785 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:58,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:01:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:01:59,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:01:59,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:01:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:59,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:01:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:01:59,477 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:01:59,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311867543] [2021-11-03 05:01:59,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311867543] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:01:59,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:01:59,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 05:01:59,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702511237] [2021-11-03 05:01:59,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:01:59,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:01:59,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:01:59,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:01:59,480 INFO L87 Difference]: Start difference. First operand 747 states and 941 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:59,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:01:59,648 INFO L93 Difference]: Finished difference Result 1005 states and 1214 transitions. [2021-11-03 05:01:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 05:01:59,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 64 [2021-11-03 05:01:59,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:01:59,654 INFO L225 Difference]: With dead ends: 1005 [2021-11-03 05:01:59,654 INFO L226 Difference]: Without dead ends: 1005 [2021-11-03 05:01:59,654 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:01:59,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2021-11-03 05:01:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 753. [2021-11-03 05:01:59,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 564 states have (on average 1.679078014184397) internal successors, (947), 752 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:59,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 947 transitions. [2021-11-03 05:01:59,683 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 947 transitions. Word has length 64 [2021-11-03 05:01:59,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:01:59,684 INFO L470 AbstractCegarLoop]: Abstraction has 753 states and 947 transitions. [2021-11-03 05:01:59,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:01:59,684 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 947 transitions. [2021-11-03 05:01:59,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 05:01:59,687 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:01:59,687 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:01:59,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 05:01:59,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:01:59,901 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:01:59,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:01:59,901 INFO L85 PathProgramCache]: Analyzing trace with hash -938951394, now seen corresponding path program 1 times [2021-11-03 05:01:59,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:01:59,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480463934] [2021-11-03 05:01:59,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:01:59,902 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:01:59,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:01:59,903 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:01:59,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 05:02:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:00,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:02:00,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:00,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:00,833 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:02:00,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480463934] [2021-11-03 05:02:00,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480463934] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:02:00,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1812514691] [2021-11-03 05:02:00,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:02:00,833 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:02:00,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:02:00,841 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:02:00,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-03 05:02:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:01,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:02:01,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:01,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:01,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:01,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1812514691] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:02:01,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058731648] [2021-11-03 05:02:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:02:01,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:02:01,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:02:01,736 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:02:01,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-03 05:02:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:02,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:02:02,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:02,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:02,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:02,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058731648] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:02:02,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:02:02,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 10 [2021-11-03 05:02:02,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117002622] [2021-11-03 05:02:02,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:02:02,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:02:02,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:02:02,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:02:02,577 INFO L87 Difference]: Start difference. First operand 753 states and 947 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:02:03,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:02:03,003 INFO L93 Difference]: Finished difference Result 1017 states and 1226 transitions. [2021-11-03 05:02:03,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 05:02:03,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 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 66 [2021-11-03 05:02:03,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:02:03,009 INFO L225 Difference]: With dead ends: 1017 [2021-11-03 05:02:03,009 INFO L226 Difference]: Without dead ends: 1017 [2021-11-03 05:02:03,010 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2021-11-03 05:02:03,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2021-11-03 05:02:03,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 765. [2021-11-03 05:02:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 576 states have (on average 1.6649305555555556) internal successors, (959), 764 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:02:03,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 959 transitions. [2021-11-03 05:02:03,029 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 959 transitions. Word has length 66 [2021-11-03 05:02:03,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:02:03,029 INFO L470 AbstractCegarLoop]: Abstraction has 765 states and 959 transitions. [2021-11-03 05:02:03,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:02:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 959 transitions. [2021-11-03 05:02:03,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 05:02:03,030 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:02:03,030 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:02:03,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-03 05:02:03,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-03 05:02:03,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-03 05:02:03,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:02:03,654 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:02:03,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:02:03,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1093747294, now seen corresponding path program 2 times [2021-11-03 05:02:03,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:02:03,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872707274] [2021-11-03 05:02:03,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:02:03,656 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:02:03,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:02:03,657 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:02:03,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-03 05:02:04,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:02:04,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:02:04,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 05:02:04,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:04,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:05,413 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:05,413 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:02:05,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872707274] [2021-11-03 05:02:05,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872707274] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:02:05,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [75031966] [2021-11-03 05:02:05,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:02:05,413 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:02:05,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:02:05,414 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:02:05,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-03 05:02:06,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:02:06,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:02:06,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 05:02:06,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:07,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:07,198 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:07,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [75031966] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:02:07,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23008091] [2021-11-03 05:02:07,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:02:07,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:02:07,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:02:07,199 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:02:07,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-03 05:02:20,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:02:20,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:02:20,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-03 05:02:20,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:20,933 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:02:20,934 INFO L388 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 19 treesize of output 19 [2021-11-03 05:02:20,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 14 [2021-11-03 05:02:21,287 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-03 05:02:21,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2021-11-03 05:02:21,456 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:02:21,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 38 [2021-11-03 05:02:23,069 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:02:23,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 38 [2021-11-03 05:02:23,249 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:02:23,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 38 [2021-11-03 05:02:23,871 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:02:23,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 38 [2021-11-03 05:02:27,568 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:02:27,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 47 [2021-11-03 05:02:27,821 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-03 05:02:27,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 27 [2021-11-03 05:02:27,874 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:02:27,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:30,001 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) c_ULTIMATE.start_main_~user~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset)))))))) (_ bv1 1)))) is different from false [2021-11-03 05:03:27,665 INFO L354 Elim1Store]: treesize reduction 5, result has 88.6 percent of original size [2021-11-03 05:03:27,666 INFO L388 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 60 treesize of output 59 [2021-11-03 05:03:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 9 times theorem prover too weak. 1 trivial. 6 not checked. [2021-11-03 05:03:36,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23008091] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:03:36,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:03:36,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 13] total 38 [2021-11-03 05:03:36,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377471279] [2021-11-03 05:03:36,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-03 05:03:36,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:36,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-03 05:03:36,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1134, Unknown=26, NotChecked=70, Total=1406 [2021-11-03 05:03:36,266 INFO L87 Difference]: Start difference. First operand 765 states and 959 transitions. Second operand has 38 states, 38 states have (on average 5.473684210526316) internal successors, (208), 38 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:03:58,499 WARN L207 SmtUtils]: Spent 6.13 s on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-11-03 05:04:04,795 WARN L207 SmtUtils]: Spent 6.13 s on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-11-03 05:04:20,033 WARN L207 SmtUtils]: Spent 6.19 s on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2021-11-03 05:04:32,722 WARN L207 SmtUtils]: Spent 8.22 s on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2021-11-03 05:04:39,093 WARN L207 SmtUtils]: Spent 6.24 s on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-11-03 05:04:45,385 WARN L207 SmtUtils]: Spent 6.16 s on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-11-03 05:04:53,687 WARN L207 SmtUtils]: Spent 8.17 s on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-11-03 05:05:02,171 WARN L207 SmtUtils]: Spent 6.12 s on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-11-03 05:05:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:05:49,800 INFO L93 Difference]: Finished difference Result 1047 states and 1256 transitions. [2021-11-03 05:05:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-03 05:05:49,801 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.473684210526316) internal successors, (208), 38 states have internal predecessors, (208), 0 states have call successors, (0), 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 70 [2021-11-03 05:05:49,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:05:49,805 INFO L225 Difference]: With dead ends: 1047 [2021-11-03 05:05:49,805 INFO L226 Difference]: Without dead ends: 1047 [2021-11-03 05:05:49,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 373 SyntacticMatches, 7 SemanticMatches, 76 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1637 ImplicationChecksByTransitivity, 165.0s TimeCoverageRelationStatistics Valid=1176, Invalid=4649, Unknown=31, NotChecked=150, Total=6006 [2021-11-03 05:05:49,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2021-11-03 05:05:49,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 788. [2021-11-03 05:05:49,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 600 states have (on average 1.635) internal successors, (981), 787 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:05:49,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 981 transitions. [2021-11-03 05:05:49,828 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 981 transitions. Word has length 70 [2021-11-03 05:05:49,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:05:49,828 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 981 transitions. [2021-11-03 05:05:49,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.473684210526316) internal successors, (208), 38 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:05:49,829 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 981 transitions. [2021-11-03 05:05:49,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 05:05:49,830 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:05:49,830 INFO L513 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:05:49,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-03 05:05:50,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2021-11-03 05:05:50,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-03 05:05:50,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:05:50,456 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:05:50,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:05:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1408996129, now seen corresponding path program 1 times [2021-11-03 05:05:50,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:05:50,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968364428] [2021-11-03 05:05:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:05:50,457 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:05:50,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:05:50,458 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:05:50,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-03 05:05:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:05:51,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:05:51,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:05:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:05:52,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:05:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:05:53,520 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:05:53,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968364428] [2021-11-03 05:05:53,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968364428] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:05:53,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [991347936] [2021-11-03 05:05:53,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:05:53,520 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:05:53,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:05:53,523 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:05:53,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-03 05:05:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:05:54,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:05:54,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:05:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:05:54,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:05:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:05:55,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [991347936] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:05:55,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497172449] [2021-11-03 05:05:55,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:05:55,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:05:55,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:05:55,031 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:05:55,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-03 05:05:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:05:55,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:05:55,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:05:56,257 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:05:56,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:05:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:05:56,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497172449] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:05:56,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:05:56,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18, 18, 18, 18] total 34 [2021-11-03 05:05:56,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204622514] [2021-11-03 05:05:56,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-03 05:05:56,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:05:56,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-03 05:05:56,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-03 05:05:56,450 INFO L87 Difference]: Start difference. First operand 788 states and 981 transitions. Second operand has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:10,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:06:10,662 INFO L93 Difference]: Finished difference Result 1088 states and 1296 transitions. [2021-11-03 05:06:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-03 05:06:10,663 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 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 78 [2021-11-03 05:06:10,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:06:10,667 INFO L225 Difference]: With dead ends: 1088 [2021-11-03 05:06:10,667 INFO L226 Difference]: Without dead ends: 1088 [2021-11-03 05:06:10,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 915 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=1446, Invalid=2586, Unknown=0, NotChecked=0, Total=4032 [2021-11-03 05:06:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2021-11-03 05:06:10,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 836. [2021-11-03 05:06:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 648 states have (on average 1.587962962962963) internal successors, (1029), 835 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:10,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1029 transitions. [2021-11-03 05:06:10,689 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1029 transitions. Word has length 78 [2021-11-03 05:06:10,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:06:10,689 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1029 transitions. [2021-11-03 05:06:10,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:10,690 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1029 transitions. [2021-11-03 05:06:10,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-03 05:06:10,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:06:10,691 INFO L513 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:06:10,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-11-03 05:06:10,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2021-11-03 05:06:11,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-03 05:06:11,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:06:11,306 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 335 more)] === [2021-11-03 05:06:11,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:06:11,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2005712417, now seen corresponding path program 2 times [2021-11-03 05:06:11,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:06:11,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244781388] [2021-11-03 05:06:11,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:06:11,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:06:11,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:06:11,308 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:06:11,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-03 05:06:12,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:06:12,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:06:12,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 05:06:12,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:06:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:14,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:06:18,306 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:18,306 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:06:18,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244781388] [2021-11-03 05:06:18,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244781388] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:06:18,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [41135443] [2021-11-03 05:06:18,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:06:18,307 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:06:18,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:06:18,307 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:06:18,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-11-03 05:06:20,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:06:20,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:06:20,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 05:06:20,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:06:20,443 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:20,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:06:20,716 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:20,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [41135443] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:06:20,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264502257] [2021-11-03 05:06:20,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:06:20,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:06:20,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:06:20,722 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:06:20,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8803ee63-ce6a-4f0a-81e6-578ba175c6ae/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-03 05:06:37,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:06:37,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:06:37,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-03 05:06:37,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:06:38,116 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:06:38,116 INFO L388 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 18 treesize of output 18 [2021-11-03 05:06:38,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-03 05:06:38,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 05:06:38,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-03 05:06:38,974 INFO L354 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2021-11-03 05:06:38,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 67 [2021-11-03 05:06:39,000 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-03 05:06:39,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 51 [2021-11-03 05:06:39,392 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:06:39,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:06:40,915 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:06:40,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:06:41,378 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:06:41,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:06:41,432 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:06:41,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:06:43,878 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:06:43,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:06:44,997 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:06:44,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:06:45,375 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:06:45,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:06:46,828 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:06:46,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:06:49,252 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:06:49,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:06:50,854 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:06:50,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:06:53,875 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:06:53,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:06:55,897 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:06:55,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:06:59,902 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:06:59,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:03,246 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:03,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:03,644 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:03,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:05,251 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:05,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:05,742 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:05,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:08,085 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:08,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:10,095 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:10,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:13,571 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:13,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:15,527 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:15,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:17,256 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:17,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:18,983 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:18,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:22,470 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:22,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:26,672 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:26,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:26,735 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:26,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:29,087 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:29,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:29,140 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:29,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:32,399 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:32,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:37,064 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:37,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:37,443 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:37,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:37,518 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:37,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:39,545 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:39,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:43,171 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:43,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:45,096 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:45,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:45,149 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:45,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:47,144 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:47,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:48,137 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:48,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:48,512 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:48,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:52,085 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:52,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:55,386 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:55,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:55,439 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:55,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:56,749 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:56,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:56,804 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:56,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:07:58,983 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:07:58,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:07:59,037 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:07:59,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:08:00,329 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:08:00,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:08:01,944 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:08:01,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:08:04,584 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:08:04,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:08:06,221 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:08:06,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:08:08,863 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:08:08,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:08:08,926 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:08:08,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:08:10,660 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:08:10,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:08:12,799 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:08:12,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:08:14,371 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-03 05:08:14,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-03 05:08:15,918 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:08:15,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 74 [2021-11-03 05:08:16,316 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-03 05:08:16,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 78 [2021-11-03 05:08:16,380 INFO L354 Elim1Store]: treesize reduction 104, result has 19.4 percent of original size [2021-11-03 05:08:16,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 101 [2021-11-03 05:08:16,986 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-03 05:08:16,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 62 [2021-11-03 05:08:17,005 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-03 05:08:17,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 26 [2021-11-03 05:08:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 29 proven. 30 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2021-11-03 05:08:17,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:09:40,893 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_7 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse2 (bvadd v_subst_7 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse3 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1))) c_ULTIMATE.start_main_~user~0.base) .cse3) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) c_ULTIMATE.start_main_~user~0.base) .cse3))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_8 (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse5) (bvadd v_subst_8 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse5))) c_ULTIMATE.start_main_~user~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset)))) (bvule (bvadd (_ bv16 32) .cse4) (bvadd (_ bv20 32) .cse4))))) is different from false [2021-11-03 05:09:48,711 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_12 (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse2 (bvadd v_subst_12 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse3 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1))) c_ULTIMATE.start_main_~user~0.base) .cse3) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) c_ULTIMATE.start_main_~user~0.base) .cse3))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_11 (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse5) (bvadd v_subst_11 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse5))) c_ULTIMATE.start_main_~user~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset)))) (bvule (bvadd (_ bv16 32) .cse4) (bvadd .cse4 (_ bv20 32)))))) is different from false [2021-11-03 05:10:51,559 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_19 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse1) (bvadd v_subst_19 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse1))) c_ULTIMATE.start_main_~user~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_20 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse4 (bvadd v_subst_20 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse5 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3))) c_ULTIMATE.start_main_~user~0.base) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) c_ULTIMATE.start_main_~user~0.base) .cse5)))))) is different from false [2021-11-03 05:14:39,215 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_34 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse1) (bvadd v_subst_34 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse1))) c_ULTIMATE.start_main_~user~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_33 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse4 (bvadd v_subst_33 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse5 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3))) c_ULTIMATE.start_main_~user~0.base) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) c_ULTIMATE.start_main_~user~0.base) .cse5)))))) is different from false [2021-11-03 05:14:41,326 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_36 (_ BitVec 32)) (v_subst_34 (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse1) (bvadd v_subst_36 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse1) (bvadd v_subst_34 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) .cse1))) c_ULTIMATE.start_main_~user~0.base) (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| (_ BitVec 32)) (v_subst_33 (_ BitVec 32)) (v_subst_35 (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr145| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse4 (bvadd v_subst_35 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse5 (bvadd v_subst_33 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|)) (.cse6 (bvadd (_ bv8 32) c_ULTIMATE.start_main_~user~0.offset))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse2 .cse3) .cse4 .cse3) .cse5 .cse3))) c_ULTIMATE.start_main_~user~0.base) .cse6)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32))) c_ULTIMATE.start_main_~user~0.base) .cse6)))))) is different from false