./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 961225f1af8bda006e5a86aed07a62a3e426daf2d218eb9a2332372592a548eb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:36:37,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:36:37,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:36:37,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:36:37,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:36:37,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:36:37,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:36:37,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:36:37,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:36:37,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:36:37,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:36:37,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:36:37,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:36:37,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:36:37,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:36:37,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:36:37,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:36:37,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:36:37,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:36:37,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:36:37,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:36:37,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:36:37,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:36:37,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:36:37,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:36:37,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:36:37,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:36:37,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:36:37,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:36:37,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:36:37,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:36:37,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:36:37,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:36:37,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:36:37,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:36:37,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:36:37,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:36:37,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:36:37,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:36:37,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:36:37,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:36:37,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-22 15:36:37,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:36:37,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:36:37,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:36:37,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:36:37,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:36:37,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:36:37,487 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:36:37,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:36:37,488 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:36:37,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:36:37,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:36:37,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:36:37,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:36:37,489 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 15:36:37,489 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 15:36:37,489 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 15:36:37,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:36:37,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:36:37,490 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:36:37,490 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:36:37,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:36:37,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:36:37,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:36:37,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:36:37,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:36:37,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:36:37,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:36:37,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:36:37,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:36:37,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 961225f1af8bda006e5a86aed07a62a3e426daf2d218eb9a2332372592a548eb [2021-11-22 15:36:37,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:36:37,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:36:37,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:36:37,806 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:36:37,807 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:36:37,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i [2021-11-22 15:36:37,889 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data/553fd14a2/392f779903ba43e1a59765fb09e7361d/FLAG361a725d8 [2021-11-22 15:36:38,727 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:36:38,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i [2021-11-22 15:36:38,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data/553fd14a2/392f779903ba43e1a59765fb09e7361d/FLAG361a725d8 [2021-11-22 15:36:39,247 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data/553fd14a2/392f779903ba43e1a59765fb09e7361d [2021-11-22 15:36:39,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:36:39,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:36:39,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:36:39,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:36:39,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:36:39,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:36:39" (1/1) ... [2021-11-22 15:36:39,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d503791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:39, skipping insertion in model container [2021-11-22 15:36:39,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:36:39" (1/1) ... [2021-11-22 15:36:39,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:36:39,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:36:39,949 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[33021,33034] [2021-11-22 15:36:40,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[84583,84596] [2021-11-22 15:36:40,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:36:40,289 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) [2021-11-22 15:36:40,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@183fc3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:40, skipping insertion in model container [2021-11-22 15:36:40,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:36:40,290 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-22 15:36:40,293 INFO L158 Benchmark]: Toolchain (without parser) took 1039.55ms. Allocated memory is still 107.0MB. Free memory was 61.2MB in the beginning and 58.7MB in the end (delta: 2.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-22 15:36:40,293 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:36:40,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1036.32ms. Allocated memory is still 107.0MB. Free memory was 61.1MB in the beginning and 58.7MB in the end (delta: 2.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-22 15:36:40,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1036.32ms. Allocated memory is still 107.0MB. Free memory was 61.1MB in the beginning and 58.7MB in the end (delta: 2.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: Unsupported Syntax Found a cast between two array/pointer types 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_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 961225f1af8bda006e5a86aed07a62a3e426daf2d218eb9a2332372592a548eb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:36:42,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:36:42,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:36:42,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:36:42,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:36:42,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:36:42,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:36:42,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:36:42,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:36:42,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:36:42,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:36:42,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:36:42,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:36:42,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:36:42,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:36:43,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:36:43,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:36:43,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:36:43,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:36:43,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:36:43,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:36:43,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:36:43,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:36:43,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:36:43,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:36:43,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:36:43,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:36:43,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:36:43,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:36:43,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:36:43,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:36:43,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:36:43,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:36:43,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:36:43,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:36:43,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:36:43,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:36:43,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:36:43,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:36:43,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:36:43,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:36:43,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-22 15:36:43,099 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:36:43,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:36:43,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:36:43,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:36:43,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:36:43,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:36:43,102 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:36:43,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:36:43,102 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:36:43,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:36:43,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:36:43,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:36:43,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:36:43,103 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 15:36:43,103 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 15:36:43,104 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 15:36:43,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:36:43,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:36:43,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 15:36:43,105 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 15:36:43,105 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:36:43,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:36:43,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:36:43,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:36:43,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:36:43,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:36:43,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:36:43,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:36:43,107 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 15:36:43,107 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 15:36:43,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:36:43,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 15:36:43,108 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_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 961225f1af8bda006e5a86aed07a62a3e426daf2d218eb9a2332372592a548eb [2021-11-22 15:36:43,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:36:43,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:36:43,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:36:43,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:36:43,658 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:36:43,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i [2021-11-22 15:36:43,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data/201102489/21147ad2b0bc4b668118a4775703063c/FLAG606244dee [2021-11-22 15:36:44,622 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:36:44,623 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i [2021-11-22 15:36:44,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data/201102489/21147ad2b0bc4b668118a4775703063c/FLAG606244dee [2021-11-22 15:36:44,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/data/201102489/21147ad2b0bc4b668118a4775703063c [2021-11-22 15:36:44,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:36:44,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:36:44,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:36:44,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:36:44,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:36:44,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:36:44" (1/1) ... [2021-11-22 15:36:44,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cfe79e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:44, skipping insertion in model container [2021-11-22 15:36:44,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:36:44" (1/1) ... [2021-11-22 15:36:44,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:36:44,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:36:45,521 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[33021,33034] [2021-11-22 15:36:45,948 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[84583,84596] [2021-11-22 15:36:45,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:36:45,997 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-22 15:36:46,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:36:46,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[33021,33034] [2021-11-22 15:36:46,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[84583,84596] [2021-11-22 15:36:46,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:36:46,237 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:36:46,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[33021,33034] [2021-11-22 15:36:46,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[84583,84596] [2021-11-22 15:36:46,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:36:46,418 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:36:46,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46 WrapperNode [2021-11-22 15:36:46,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:36:46,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:36:46,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:36:46,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:36:46,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:46,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:46,723 INFO L137 Inliner]: procedures = 180, calls = 781, calls flagged for inlining = 506, calls inlined = 506, statements flattened = 4549 [2021-11-22 15:36:46,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:36:46,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:36:46,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:36:46,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:36:46,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:46,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:46,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:46,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:46,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:46,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:46,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:47,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:36:47,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:36:47,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:36:47,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:36:47,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (1/1) ... [2021-11-22 15:36:47,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:36:47,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:36:47,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:36:47,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:36:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-22 15:36:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 15:36:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:36:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:36:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:36:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:36:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 15:36:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:36:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:36:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 15:36:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 15:36:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:36:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:36:47,510 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:36:47,520 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:36:56,740 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:36:56,786 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:36:56,786 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-22 15:36:56,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:36:56 BoogieIcfgContainer [2021-11-22 15:36:56,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:36:56,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:36:56,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:36:56,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:36:56,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:36:44" (1/3) ... [2021-11-22 15:36:56,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2e3200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:36:56, skipping insertion in model container [2021-11-22 15:36:56,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:36:46" (2/3) ... [2021-11-22 15:36:56,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2e3200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:36:56, skipping insertion in model container [2021-11-22 15:36:56,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:36:56" (3/3) ... [2021-11-22 15:36:56,805 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test9-2.i [2021-11-22 15:36:56,811 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:36:56,812 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1035 error locations. [2021-11-22 15:36:56,859 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:36:56,866 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 [2021-11-22 15:36:56,867 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1035 error locations. [2021-11-22 15:36:56,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 3569 states, 2533 states have (on average 1.8535333596525858) internal successors, (4695), 3568 states have internal predecessors, (4695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:36:56,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-22 15:36:56,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:36:56,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-22 15:36:56,983 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:36:56,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:36:56,990 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-22 15:36:57,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:36:57,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184731503] [2021-11-22 15:36:57,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:36:57,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:36:57,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:36:57,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:36:57,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 15:36:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:36:57,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:36:57,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:36:57,304 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 [2021-11-22 15:36:57,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:36:57,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:36:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:36:57,361 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:36:57,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184731503] [2021-11-22 15:36:57,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184731503] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:36:57,363 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:36:57,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 15:36:57,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801596723] [2021-11-22 15:36:57,370 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:36:57,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:36:57,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:36:57,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:36:57,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:36:57,425 INFO L87 Difference]: Start difference. First operand has 3569 states, 2533 states have (on average 1.8535333596525858) internal successors, (4695), 3568 states have internal predecessors, (4695), 0 states have call successors, (0), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:00,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:00,138 INFO L93 Difference]: Finished difference Result 3733 states and 4300 transitions. [2021-11-22 15:37:00,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:37:00,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-22 15:37:00,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:00,192 INFO L225 Difference]: With dead ends: 3733 [2021-11-22 15:37:00,192 INFO L226 Difference]: Without dead ends: 3731 [2021-11-22 15:37:00,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:37:00,200 INFO L933 BasicCegarLoop]: 3629 mSDtfsCounter, 4000 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4000 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:00,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4000 Valid, 3769 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-22 15:37:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2021-11-22 15:37:00,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3553. [2021-11-22 15:37:00,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 2533 states have (on average 1.6233714962495065) internal successors, (4112), 3552 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 4112 transitions. [2021-11-22 15:37:00,415 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 4112 transitions. Word has length 3 [2021-11-22 15:37:00,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:00,416 INFO L470 AbstractCegarLoop]: Abstraction has 3553 states and 4112 transitions. [2021-11-22 15:37:00,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 4112 transitions. [2021-11-22 15:37:00,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-22 15:37:00,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:00,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-22 15:37:00,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:00,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:00,626 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:00,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:00,628 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-22 15:37:00,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:00,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606809244] [2021-11-22 15:37:00,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:00,629 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:00,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:00,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:00,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 15:37:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:00,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:37:00,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:00,815 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 [2021-11-22 15:37:00,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:00,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:00,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:00,895 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:00,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606809244] [2021-11-22 15:37:00,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606809244] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:00,898 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:00,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-22 15:37:00,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341977788] [2021-11-22 15:37:00,899 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:00,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:37:00,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:00,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:37:00,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:00,903 INFO L87 Difference]: Start difference. First operand 3553 states and 4112 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-11-22 15:37:06,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:06,792 INFO L93 Difference]: Finished difference Result 6536 states and 7630 transitions. [2021-11-22 15:37:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:37:06,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 3 [2021-11-22 15:37:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:06,833 INFO L225 Difference]: With dead ends: 6536 [2021-11-22 15:37:06,834 INFO L226 Difference]: Without dead ends: 6536 [2021-11-22 15:37:06,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:06,837 INFO L933 BasicCegarLoop]: 3775 mSDtfsCounter, 7167 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7167 SdHoareTripleChecker+Valid, 7568 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:06,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7167 Valid, 7568 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-22 15:37:06,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6536 states. [2021-11-22 15:37:06,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6536 to 3588. [2021-11-22 15:37:06,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3588 states, 2577 states have (on average 1.6263096623981375) internal successors, (4191), 3587 states have internal predecessors, (4191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 4191 transitions. [2021-11-22 15:37:06,972 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 4191 transitions. Word has length 3 [2021-11-22 15:37:06,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:06,972 INFO L470 AbstractCegarLoop]: Abstraction has 3588 states and 4191 transitions. [2021-11-22 15:37:06,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-11-22 15:37:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 4191 transitions. [2021-11-22 15:37:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-22 15:37:06,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:06,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:37:06,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:07,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:07,191 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:07,192 INFO L85 PathProgramCache]: Analyzing trace with hash 62249618, now seen corresponding path program 1 times [2021-11-22 15:37:07,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:07,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335135263] [2021-11-22 15:37:07,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:07,197 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:07,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:07,198 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:07,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 15:37:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:07,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:37:07,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:07,405 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 [2021-11-22 15:37:07,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:07,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:07,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:07,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:07,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335135263] [2021-11-22 15:37:07,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335135263] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:07,444 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:07,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 15:37:07,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978913683] [2021-11-22 15:37:07,445 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:07,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:37:07,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:07,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:37:07,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:37:07,447 INFO L87 Difference]: Start difference. First operand 3588 states and 4191 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:09,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:09,680 INFO L93 Difference]: Finished difference Result 6255 states and 7375 transitions. [2021-11-22 15:37:09,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:37:09,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-22 15:37:09,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:09,720 INFO L225 Difference]: With dead ends: 6255 [2021-11-22 15:37:09,720 INFO L226 Difference]: Without dead ends: 6255 [2021-11-22 15:37:09,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:37:09,722 INFO L933 BasicCegarLoop]: 6861 mSDtfsCounter, 3821 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3821 SdHoareTripleChecker+Valid, 10110 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:09,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3821 Valid, 10110 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-22 15:37:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2021-11-22 15:37:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 3541. [2021-11-22 15:37:09,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 2577 states have (on average 1.606907256499806) internal successors, (4141), 3540 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 4141 transitions. [2021-11-22 15:37:09,835 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 4141 transitions. Word has length 8 [2021-11-22 15:37:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:09,836 INFO L470 AbstractCegarLoop]: Abstraction has 3541 states and 4141 transitions. [2021-11-22 15:37:09,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 4141 transitions. [2021-11-22 15:37:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-22 15:37:09,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:09,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:37:09,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:10,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:10,050 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:10,051 INFO L85 PathProgramCache]: Analyzing trace with hash 62249619, now seen corresponding path program 1 times [2021-11-22 15:37:10,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:10,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618620228] [2021-11-22 15:37:10,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:10,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:10,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:10,055 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:10,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 15:37:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:10,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:37:10,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:10,208 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 [2021-11-22 15:37:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:10,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:10,337 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:10,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618620228] [2021-11-22 15:37:10,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618620228] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:10,338 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:10,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-22 15:37:10,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993684974] [2021-11-22 15:37:10,338 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:10,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:37:10,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:10,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:37:10,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:10,340 INFO L87 Difference]: Start difference. First operand 3541 states and 4141 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:14,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:14,795 INFO L93 Difference]: Finished difference Result 6285 states and 7369 transitions. [2021-11-22 15:37:14,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:37:14,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-22 15:37:14,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:14,827 INFO L225 Difference]: With dead ends: 6285 [2021-11-22 15:37:14,828 INFO L226 Difference]: Without dead ends: 6285 [2021-11-22 15:37:14,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:14,829 INFO L933 BasicCegarLoop]: 7026 mSDtfsCounter, 3537 mSDsluCounter, 6824 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3537 SdHoareTripleChecker+Valid, 13850 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:14,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3537 Valid, 13850 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-22 15:37:14,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6285 states. [2021-11-22 15:37:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6285 to 3531. [2021-11-22 15:37:14,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 2577 states have (on average 1.6018626309662398) internal successors, (4128), 3530 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:14,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 4128 transitions. [2021-11-22 15:37:14,932 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 4128 transitions. Word has length 8 [2021-11-22 15:37:14,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:14,932 INFO L470 AbstractCegarLoop]: Abstraction has 3531 states and 4128 transitions. [2021-11-22 15:37:14,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:14,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 4128 transitions. [2021-11-22 15:37:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 15:37:14,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:14,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:37:14,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-22 15:37:15,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:15,148 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr929REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:15,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:15,149 INFO L85 PathProgramCache]: Analyzing trace with hash -938869684, now seen corresponding path program 1 times [2021-11-22 15:37:15,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:15,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539577438] [2021-11-22 15:37:15,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:15,150 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:15,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:15,151 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:15,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 15:37:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:15,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:37:15,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:15,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:15,457 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:15,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539577438] [2021-11-22 15:37:15,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539577438] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:15,457 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:15,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 15:37:15,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746225324] [2021-11-22 15:37:15,458 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:15,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:37:15,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:15,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:37:15,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:37:15,460 INFO L87 Difference]: Start difference. First operand 3531 states and 4128 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:15,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:15,895 INFO L93 Difference]: Finished difference Result 6494 states and 7625 transitions. [2021-11-22 15:37:15,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:37:15,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 15:37:15,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:15,950 INFO L225 Difference]: With dead ends: 6494 [2021-11-22 15:37:15,950 INFO L226 Difference]: Without dead ends: 6494 [2021-11-22 15:37:15,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:37:15,952 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 3570 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3570 SdHoareTripleChecker+Valid, 7987 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:15,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3570 Valid, 7987 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 15:37:15,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6494 states. [2021-11-22 15:37:16,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6494 to 5201. [2021-11-22 15:37:16,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 4247 states have (on average 1.629385448551919) internal successors, (6920), 5200 states have internal predecessors, (6920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 6920 transitions. [2021-11-22 15:37:16,183 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 6920 transitions. Word has length 11 [2021-11-22 15:37:16,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:16,183 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 6920 transitions. [2021-11-22 15:37:16,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:16,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 6920 transitions. [2021-11-22 15:37:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 15:37:16,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:16,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:37:16,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:16,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:16,397 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1258779124, now seen corresponding path program 1 times [2021-11-22 15:37:16,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:16,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993363379] [2021-11-22 15:37:16,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:16,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:16,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:16,414 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:16,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-22 15:37:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:16,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:37:16,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:16,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:16,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:16,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:16,633 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:16,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993363379] [2021-11-22 15:37:16,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993363379] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:16,634 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:16,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 15:37:16,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066603323] [2021-11-22 15:37:16,635 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:16,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:37:16,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:16,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:37:16,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:16,636 INFO L87 Difference]: Start difference. First operand 5201 states and 6920 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:16,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:16,716 INFO L93 Difference]: Finished difference Result 5355 states and 7060 transitions. [2021-11-22 15:37:16,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:37:16,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 [2021-11-22 15:37:16,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:16,728 INFO L225 Difference]: With dead ends: 5355 [2021-11-22 15:37:16,729 INFO L226 Difference]: Without dead ends: 5355 [2021-11-22 15:37:16,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:16,730 INFO L933 BasicCegarLoop]: 4203 mSDtfsCounter, 3394 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3394 SdHoareTripleChecker+Valid, 5839 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:16,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3394 Valid, 5839 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:37:16,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5355 states. [2021-11-22 15:37:16,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5355 to 5141. [2021-11-22 15:37:16,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 4211 states have (on average 1.6228924246022323) internal successors, (6834), 5140 states have internal predecessors, (6834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:16,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 6834 transitions. [2021-11-22 15:37:16,867 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 6834 transitions. Word has length 13 [2021-11-22 15:37:16,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:16,867 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 6834 transitions. [2021-11-22 15:37:16,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:16,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 6834 transitions. [2021-11-22 15:37:16,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 15:37:16,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:16,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:37:16,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:17,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:17,082 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1034ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:17,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:17,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1025651543, now seen corresponding path program 1 times [2021-11-22 15:37:17,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:17,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396354202] [2021-11-22 15:37:17,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:17,084 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:17,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:17,085 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:17,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-22 15:37:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:17,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:37:17,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:17,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 15:37:17,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 15:37:17,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-22 15:37:17,318 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-22 15:37:17,319 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 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-22 15:37:17,390 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-22 15:37:17,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-22 15:37:17,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:17,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:17,474 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:17,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396354202] [2021-11-22 15:37:17,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396354202] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:17,474 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:17,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 15:37:17,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651099855] [2021-11-22 15:37:17,475 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:17,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:37:17,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:17,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:37:17,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:37:17,476 INFO L87 Difference]: Start difference. First operand 5141 states and 6834 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:19,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:19,667 INFO L93 Difference]: Finished difference Result 9458 states and 12682 transitions. [2021-11-22 15:37:19,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:37:19,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-22 15:37:19,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:19,691 INFO L225 Difference]: With dead ends: 9458 [2021-11-22 15:37:19,691 INFO L226 Difference]: Without dead ends: 9458 [2021-11-22 15:37:19,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:37:19,693 INFO L933 BasicCegarLoop]: 3960 mSDtfsCounter, 3332 mSDsluCounter, 15618 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3332 SdHoareTripleChecker+Valid, 19578 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:19,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3332 Valid, 19578 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-22 15:37:19,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9458 states. [2021-11-22 15:37:19,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9458 to 5140. [2021-11-22 15:37:19,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5140 states, 4210 states have (on average 1.6228028503562946) internal successors, (6832), 5139 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5140 states to 5140 states and 6832 transitions. [2021-11-22 15:37:19,837 INFO L78 Accepts]: Start accepts. Automaton has 5140 states and 6832 transitions. Word has length 14 [2021-11-22 15:37:19,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:19,837 INFO L470 AbstractCegarLoop]: Abstraction has 5140 states and 6832 transitions. [2021-11-22 15:37:19,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:19,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5140 states and 6832 transitions. [2021-11-22 15:37:19,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 15:37:19,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:19,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:37:19,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:20,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:20,052 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:20,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash -520774338, now seen corresponding path program 1 times [2021-11-22 15:37:20,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:20,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632978045] [2021-11-22 15:37:20,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:20,054 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:20,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:20,055 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:20,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-22 15:37:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:20,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:37:20,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:20,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:20,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:20,250 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:20,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632978045] [2021-11-22 15:37:20,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632978045] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:20,251 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:20,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 15:37:20,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74377761] [2021-11-22 15:37:20,252 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:20,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:37:20,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:20,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:37:20,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:20,253 INFO L87 Difference]: Start difference. First operand 5140 states and 6832 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:20,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:20,349 INFO L93 Difference]: Finished difference Result 5080 states and 6746 transitions. [2021-11-22 15:37:20,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:37:20,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 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 18 [2021-11-22 15:37:20,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:20,361 INFO L225 Difference]: With dead ends: 5080 [2021-11-22 15:37:20,361 INFO L226 Difference]: Without dead ends: 5080 [2021-11-22 15:37:20,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:20,363 INFO L933 BasicCegarLoop]: 3955 mSDtfsCounter, 7900 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7900 SdHoareTripleChecker+Valid, 3969 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:20,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7900 Valid, 3969 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:37:20,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5080 states. [2021-11-22 15:37:20,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5080 to 5080. [2021-11-22 15:37:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 4174 states have (on average 1.6161954959271683) internal successors, (6746), 5079 states have internal predecessors, (6746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 6746 transitions. [2021-11-22 15:37:20,452 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 6746 transitions. Word has length 18 [2021-11-22 15:37:20,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:20,453 INFO L470 AbstractCegarLoop]: Abstraction has 5080 states and 6746 transitions. [2021-11-22 15:37:20,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 6746 transitions. [2021-11-22 15:37:20,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 15:37:20,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:20,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:37:20,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:20,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:20,674 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:20,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:20,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2047030904, now seen corresponding path program 1 times [2021-11-22 15:37:20,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:20,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269185788] [2021-11-22 15:37:20,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:20,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:20,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:20,678 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:20,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-22 15:37:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:20,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:37:20,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:20,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:20,908 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:20,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269185788] [2021-11-22 15:37:20,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269185788] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:20,908 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:20,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-22 15:37:20,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588005332] [2021-11-22 15:37:20,909 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:20,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:37:20,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:20,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:37:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:37:20,910 INFO L87 Difference]: Start difference. First operand 5080 states and 6746 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:21,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:21,007 INFO L93 Difference]: Finished difference Result 5052 states and 6690 transitions. [2021-11-22 15:37:21,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:37:21,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 20 [2021-11-22 15:37:21,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:21,018 INFO L225 Difference]: With dead ends: 5052 [2021-11-22 15:37:21,019 INFO L226 Difference]: Without dead ends: 5052 [2021-11-22 15:37:21,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:37:21,020 INFO L933 BasicCegarLoop]: 3910 mSDtfsCounter, 3921 mSDsluCounter, 3931 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3921 SdHoareTripleChecker+Valid, 7841 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:21,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3921 Valid, 7841 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:37:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5052 states. [2021-11-22 15:37:21,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5052 to 5050. [2021-11-22 15:37:21,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5050 states, 4158 states have (on average 1.6084656084656084) internal successors, (6688), 5049 states have internal predecessors, (6688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:21,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5050 states to 5050 states and 6688 transitions. [2021-11-22 15:37:21,142 INFO L78 Accepts]: Start accepts. Automaton has 5050 states and 6688 transitions. Word has length 20 [2021-11-22 15:37:21,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:21,142 INFO L470 AbstractCegarLoop]: Abstraction has 5050 states and 6688 transitions. [2021-11-22 15:37:21,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:21,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5050 states and 6688 transitions. [2021-11-22 15:37:21,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 15:37:21,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:21,144 INFO L514 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] [2021-11-22 15:37:21,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:21,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:21,357 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:21,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1406589690, now seen corresponding path program 1 times [2021-11-22 15:37:21,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:21,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172938323] [2021-11-22 15:37:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:21,359 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:21,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:21,360 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:21,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-22 15:37:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:21,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:37:21,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:21,546 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 [2021-11-22 15:37:21,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:21,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:21,779 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:21,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172938323] [2021-11-22 15:37:21,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172938323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:21,780 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:21,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-22 15:37:21,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025824795] [2021-11-22 15:37:21,780 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:21,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:37:21,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:21,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:37:21,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:21,782 INFO L87 Difference]: Start difference. First operand 5050 states and 6688 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:24,105 INFO L93 Difference]: Finished difference Result 9483 states and 12685 transitions. [2021-11-22 15:37:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:37:24,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2021-11-22 15:37:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:24,129 INFO L225 Difference]: With dead ends: 9483 [2021-11-22 15:37:24,130 INFO L226 Difference]: Without dead ends: 9483 [2021-11-22 15:37:24,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:37:24,131 INFO L933 BasicCegarLoop]: 3483 mSDtfsCounter, 7477 mSDsluCounter, 6499 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7477 SdHoareTripleChecker+Valid, 9982 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:24,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7477 Valid, 9982 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-22 15:37:24,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9483 states. [2021-11-22 15:37:24,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9483 to 5046. [2021-11-22 15:37:24,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5046 states, 4158 states have (on average 1.6065416065416065) internal successors, (6680), 5045 states have internal predecessors, (6680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:24,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5046 states to 5046 states and 6680 transitions. [2021-11-22 15:37:24,247 INFO L78 Accepts]: Start accepts. Automaton has 5046 states and 6680 transitions. Word has length 34 [2021-11-22 15:37:24,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:24,248 INFO L470 AbstractCegarLoop]: Abstraction has 5046 states and 6680 transitions. [2021-11-22 15:37:24,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:24,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5046 states and 6680 transitions. [2021-11-22 15:37:24,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 15:37:24,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:24,250 INFO L514 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] [2021-11-22 15:37:24,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:24,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:24,462 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:24,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:24,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1406589689, now seen corresponding path program 1 times [2021-11-22 15:37:24,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:24,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036756024] [2021-11-22 15:37:24,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:24,463 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:24,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:24,464 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:24,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-22 15:37:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:24,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:37:24,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:24,638 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 [2021-11-22 15:37:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:24,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:25,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:25,492 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:25,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036756024] [2021-11-22 15:37:25,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036756024] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:25,492 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:25,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 15:37:25,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551424958] [2021-11-22 15:37:25,492 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:25,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:37:25,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:25,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:37:25,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:37:25,494 INFO L87 Difference]: Start difference. First operand 5046 states and 6680 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:32,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:32,981 INFO L93 Difference]: Finished difference Result 9537 states and 12702 transitions. [2021-11-22 15:37:32,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:37:32,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 34 [2021-11-22 15:37:32,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:33,010 INFO L225 Difference]: With dead ends: 9537 [2021-11-22 15:37:33,010 INFO L226 Difference]: Without dead ends: 9537 [2021-11-22 15:37:33,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:37:33,011 INFO L933 BasicCegarLoop]: 7126 mSDtfsCounter, 10357 mSDsluCounter, 10328 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10357 SdHoareTripleChecker+Valid, 17454 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:33,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10357 Valid, 17454 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1602 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2021-11-22 15:37:33,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9537 states. [2021-11-22 15:37:33,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9537 to 5042. [2021-11-22 15:37:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5042 states, 4158 states have (on average 1.6046176046176046) internal successors, (6672), 5041 states have internal predecessors, (6672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:33,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5042 states to 5042 states and 6672 transitions. [2021-11-22 15:37:33,128 INFO L78 Accepts]: Start accepts. Automaton has 5042 states and 6672 transitions. Word has length 34 [2021-11-22 15:37:33,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:33,129 INFO L470 AbstractCegarLoop]: Abstraction has 5042 states and 6672 transitions. [2021-11-22 15:37:33,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:33,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5042 states and 6672 transitions. [2021-11-22 15:37:33,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-22 15:37:33,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:33,131 INFO L514 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] [2021-11-22 15:37:33,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:33,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:33,344 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:33,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:33,344 INFO L85 PathProgramCache]: Analyzing trace with hash -489765179, now seen corresponding path program 1 times [2021-11-22 15:37:33,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:33,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627167] [2021-11-22 15:37:33,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:33,345 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:33,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:33,346 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:33,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-22 15:37:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:33,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:37:33,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:33,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:33,796 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:33,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627167] [2021-11-22 15:37:33,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627167] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:33,796 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:33,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-22 15:37:33,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398858576] [2021-11-22 15:37:33,797 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:33,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:37:33,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:33,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:37:33,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:37:33,798 INFO L87 Difference]: Start difference. First operand 5042 states and 6672 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2021-11-22 15:37:33,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:33,926 INFO L93 Difference]: Finished difference Result 5030 states and 6652 transitions. [2021-11-22 15:37:33,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:37:33,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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 52 [2021-11-22 15:37:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:33,936 INFO L225 Difference]: With dead ends: 5030 [2021-11-22 15:37:33,937 INFO L226 Difference]: Without dead ends: 5030 [2021-11-22 15:37:33,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:37:33,938 INFO L933 BasicCegarLoop]: 3904 mSDtfsCounter, 3897 mSDsluCounter, 3901 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3897 SdHoareTripleChecker+Valid, 7805 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:33,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3897 Valid, 7805 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:37:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2021-11-22 15:37:34,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2021-11-22 15:37:34,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 4146 states have (on average 1.6044380125422093) internal successors, (6652), 5029 states have internal predecessors, (6652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 6652 transitions. [2021-11-22 15:37:34,025 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 6652 transitions. Word has length 52 [2021-11-22 15:37:34,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:34,025 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 6652 transitions. [2021-11-22 15:37:34,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2021-11-22 15:37:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 6652 transitions. [2021-11-22 15:37:34,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-22 15:37:34,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:34,030 INFO L514 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] [2021-11-22 15:37:34,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:34,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:34,244 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:34,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:34,244 INFO L85 PathProgramCache]: Analyzing trace with hash -531678063, now seen corresponding path program 1 times [2021-11-22 15:37:34,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:34,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589720221] [2021-11-22 15:37:34,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:34,247 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:34,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:34,249 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:34,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-22 15:37:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:34,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-22 15:37:34,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:34,584 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 [2021-11-22 15:37:34,592 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 [2021-11-22 15:37:35,348 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-22 15:37:35,348 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 26 treesize of output 28 [2021-11-22 15:37:35,356 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-22 15:37:35,357 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 25 treesize of output 21 [2021-11-22 15:37:35,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:35,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:40,724 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:40,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589720221] [2021-11-22 15:37:40,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589720221] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:40,725 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:40,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 15:37:40,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767180068] [2021-11-22 15:37:40,725 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:40,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:37:40,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:40,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:37:40,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-22 15:37:40,727 INFO L87 Difference]: Start difference. First operand 5030 states and 6652 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:44,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:44,266 INFO L93 Difference]: Finished difference Result 9274 states and 12421 transitions. [2021-11-22 15:37:44,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:37:44,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 [2021-11-22 15:37:44,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:44,286 INFO L225 Difference]: With dead ends: 9274 [2021-11-22 15:37:44,287 INFO L226 Difference]: Without dead ends: 9274 [2021-11-22 15:37:44,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-22 15:37:44,288 INFO L933 BasicCegarLoop]: 6688 mSDtfsCounter, 10242 mSDsluCounter, 6505 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10242 SdHoareTripleChecker+Valid, 13193 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 753 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:44,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10242 Valid, 13193 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 585 Invalid, 0 Unknown, 753 Unchecked, 3.4s Time] [2021-11-22 15:37:44,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9274 states. [2021-11-22 15:37:44,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9274 to 5000. [2021-11-22 15:37:44,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5000 states, 4148 states have (on average 1.5964320154291225) internal successors, (6622), 4999 states have internal predecessors, (6622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:44,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5000 states to 5000 states and 6622 transitions. [2021-11-22 15:37:44,389 INFO L78 Accepts]: Start accepts. Automaton has 5000 states and 6622 transitions. Word has length 60 [2021-11-22 15:37:44,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:44,390 INFO L470 AbstractCegarLoop]: Abstraction has 5000 states and 6622 transitions. [2021-11-22 15:37:44,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:44,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5000 states and 6622 transitions. [2021-11-22 15:37:44,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-22 15:37:44,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:44,392 INFO L514 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] [2021-11-22 15:37:44,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:44,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:44,610 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:44,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:44,611 INFO L85 PathProgramCache]: Analyzing trace with hash 158497042, now seen corresponding path program 1 times [2021-11-22 15:37:44,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:44,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796932296] [2021-11-22 15:37:44,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:44,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:44,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:44,613 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:44,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-22 15:37:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:44,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:37:44,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:45,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:45,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:45,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-22 15:37:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:45,498 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:45,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796932296] [2021-11-22 15:37:45,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796932296] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:45,498 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:45,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-22 15:37:45,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693931744] [2021-11-22 15:37:45,499 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:45,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:37:45,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:45,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:37:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:37:45,501 INFO L87 Difference]: Start difference. First operand 5000 states and 6622 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:47,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:47,025 INFO L93 Difference]: Finished difference Result 4998 states and 6620 transitions. [2021-11-22 15:37:47,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:37:47,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 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 62 [2021-11-22 15:37:47,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:47,035 INFO L225 Difference]: With dead ends: 4998 [2021-11-22 15:37:47,035 INFO L226 Difference]: Without dead ends: 4998 [2021-11-22 15:37:47,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:37:47,036 INFO L933 BasicCegarLoop]: 3572 mSDtfsCounter, 10878 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10878 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:47,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10878 Valid, 3983 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-22 15:37:47,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4998 states. [2021-11-22 15:37:47,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4998 to 4998. [2021-11-22 15:37:47,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 4148 states have (on average 1.5959498553519769) internal successors, (6620), 4997 states have internal predecessors, (6620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 6620 transitions. [2021-11-22 15:37:47,133 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 6620 transitions. Word has length 62 [2021-11-22 15:37:47,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:47,133 INFO L470 AbstractCegarLoop]: Abstraction has 4998 states and 6620 transitions. [2021-11-22 15:37:47,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:47,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 6620 transitions. [2021-11-22 15:37:47,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 15:37:47,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:47,135 INFO L514 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, 1, 1] [2021-11-22 15:37:47,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:47,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:47,349 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:47,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1426362414, now seen corresponding path program 1 times [2021-11-22 15:37:47,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:47,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72555960] [2021-11-22 15:37:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:47,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:47,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:47,352 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:47,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-22 15:37:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:47,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:37:47,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:47,629 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 [2021-11-22 15:37:47,641 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 22 treesize of output 18 [2021-11-22 15:37:47,688 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 25 treesize of output 13 [2021-11-22 15:37:47,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:47,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:47,884 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:47,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72555960] [2021-11-22 15:37:47,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72555960] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:47,885 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:47,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-22 15:37:47,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012221769] [2021-11-22 15:37:47,885 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:47,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:37:47,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:47,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:37:47,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:37:47,887 INFO L87 Difference]: Start difference. First operand 4998 states and 6620 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:52,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:37:52,835 INFO L93 Difference]: Finished difference Result 9629 states and 12824 transitions. [2021-11-22 15:37:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 15:37:52,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 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 [2021-11-22 15:37:52,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:37:52,846 INFO L225 Difference]: With dead ends: 9629 [2021-11-22 15:37:52,846 INFO L226 Difference]: Without dead ends: 9629 [2021-11-22 15:37:52,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-22 15:37:52,847 INFO L933 BasicCegarLoop]: 3564 mSDtfsCounter, 3803 mSDsluCounter, 13817 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3803 SdHoareTripleChecker+Valid, 17381 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-22 15:37:52,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3803 Valid, 17381 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-22 15:37:52,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9629 states. [2021-11-22 15:37:52,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9629 to 4997. [2021-11-22 15:37:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4997 states, 4148 states have (on average 1.595708775313404) internal successors, (6619), 4996 states have internal predecessors, (6619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:52,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4997 states to 4997 states and 6619 transitions. [2021-11-22 15:37:52,953 INFO L78 Accepts]: Start accepts. Automaton has 4997 states and 6619 transitions. Word has length 66 [2021-11-22 15:37:52,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:37:52,953 INFO L470 AbstractCegarLoop]: Abstraction has 4997 states and 6619 transitions. [2021-11-22 15:37:52,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:37:52,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4997 states and 6619 transitions. [2021-11-22 15:37:52,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-22 15:37:52,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:37:52,954 INFO L514 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, 1, 1, 1] [2021-11-22 15:37:52,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-22 15:37:53,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:37:53,169 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:37:53,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:37:53,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1267561538, now seen corresponding path program 1 times [2021-11-22 15:37:53,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:37:53,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457099396] [2021-11-22 15:37:53,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:37:53,171 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:37:53,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:37:53,172 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:37:53,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-22 15:37:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:37:53,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 15:37:53,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:37:53,512 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 [2021-11-22 15:37:53,548 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 [2021-11-22 15:37:53,561 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 [2021-11-22 15:37:53,616 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 [2021-11-22 15:37:53,620 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 [2021-11-22 15:37:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:53,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:37:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:37:54,121 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:37:54,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457099396] [2021-11-22 15:37:54,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457099396] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:37:54,122 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:37:54,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-22 15:37:54,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880690067] [2021-11-22 15:37:54,122 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:37:54,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 15:37:54,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:37:54,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 15:37:54,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 15:37:54,123 INFO L87 Difference]: Start difference. First operand 4997 states and 6619 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:07,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:38:07,742 INFO L93 Difference]: Finished difference Result 9478 states and 12636 transitions. [2021-11-22 15:38:07,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 15:38:07,743 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 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 67 [2021-11-22 15:38:07,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:38:07,753 INFO L225 Difference]: With dead ends: 9478 [2021-11-22 15:38:07,753 INFO L226 Difference]: Without dead ends: 9478 [2021-11-22 15:38:07,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-11-22 15:38:07,754 INFO L933 BasicCegarLoop]: 3520 mSDtfsCounter, 3793 mSDsluCounter, 17074 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3793 SdHoareTripleChecker+Valid, 20594 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:38:07,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3793 Valid, 20594 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2205 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2021-11-22 15:38:07,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9478 states. [2021-11-22 15:38:07,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9478 to 4996. [2021-11-22 15:38:07,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4996 states, 4148 states have (on average 1.5954676952748312) internal successors, (6618), 4995 states have internal predecessors, (6618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4996 states to 4996 states and 6618 transitions. [2021-11-22 15:38:07,857 INFO L78 Accepts]: Start accepts. Automaton has 4996 states and 6618 transitions. Word has length 67 [2021-11-22 15:38:07,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:38:07,857 INFO L470 AbstractCegarLoop]: Abstraction has 4996 states and 6618 transitions. [2021-11-22 15:38:07,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:07,858 INFO L276 IsEmpty]: Start isEmpty. Operand 4996 states and 6618 transitions. [2021-11-22 15:38:07,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 15:38:07,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:38:07,859 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:38:07,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-22 15:38:08,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:38:08,073 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:38:08,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:38:08,074 INFO L85 PathProgramCache]: Analyzing trace with hash -582276570, now seen corresponding path program 1 times [2021-11-22 15:38:08,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:38:08,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514542630] [2021-11-22 15:38:08,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:38:08,075 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:38:08,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:38:08,076 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:38:08,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-22 15:38:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:38:08,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:38:08,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:38:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:08,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:38:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:08,500 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:38:08,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514542630] [2021-11-22 15:38:08,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514542630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:38:08,500 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:38:08,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-22 15:38:08,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584067385] [2021-11-22 15:38:08,501 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:38:08,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:38:08,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:38:08,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:38:08,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:38:08,502 INFO L87 Difference]: Start difference. First operand 4996 states and 6618 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:08,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:38:08,704 INFO L93 Difference]: Finished difference Result 9837 states and 13041 transitions. [2021-11-22 15:38:08,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:38:08,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 71 [2021-11-22 15:38:08,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:38:08,715 INFO L225 Difference]: With dead ends: 9837 [2021-11-22 15:38:08,716 INFO L226 Difference]: Without dead ends: 9837 [2021-11-22 15:38:08,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:38:08,717 INFO L933 BasicCegarLoop]: 4127 mSDtfsCounter, 3858 mSDsluCounter, 12003 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3858 SdHoareTripleChecker+Valid, 16130 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:38:08,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3858 Valid, 16130 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:38:08,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9837 states. [2021-11-22 15:38:08,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9837 to 4999. [2021-11-22 15:38:08,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4999 states, 4151 states have (on average 1.5950373403999036) internal successors, (6621), 4998 states have internal predecessors, (6621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4999 states to 4999 states and 6621 transitions. [2021-11-22 15:38:08,840 INFO L78 Accepts]: Start accepts. Automaton has 4999 states and 6621 transitions. Word has length 71 [2021-11-22 15:38:08,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:38:08,841 INFO L470 AbstractCegarLoop]: Abstraction has 4999 states and 6621 transitions. [2021-11-22 15:38:08,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:08,841 INFO L276 IsEmpty]: Start isEmpty. Operand 4999 states and 6621 transitions. [2021-11-22 15:38:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-22 15:38:08,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:38:08,842 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:38:08,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-22 15:38:09,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:38:09,058 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:38:09,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:38:09,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1283072730, now seen corresponding path program 1 times [2021-11-22 15:38:09,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:38:09,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787428280] [2021-11-22 15:38:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:38:09,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:38:09,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:38:09,060 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:38:09,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-22 15:38:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:38:09,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:38:09,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:38:09,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:09,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:38:09,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:09,636 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:38:09,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787428280] [2021-11-22 15:38:09,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787428280] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:38:09,636 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:38:09,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-22 15:38:09,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990539676] [2021-11-22 15:38:09,636 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:38:09,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 15:38:09,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:38:09,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 15:38:09,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 15:38:09,638 INFO L87 Difference]: Start difference. First operand 4999 states and 6621 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:10,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:38:10,211 INFO L93 Difference]: Finished difference Result 9644 states and 12838 transitions. [2021-11-22 15:38:10,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 15:38:10,212 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 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 73 [2021-11-22 15:38:10,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:38:10,223 INFO L225 Difference]: With dead ends: 9644 [2021-11-22 15:38:10,223 INFO L226 Difference]: Without dead ends: 9644 [2021-11-22 15:38:10,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2021-11-22 15:38:10,224 INFO L933 BasicCegarLoop]: 3926 mSDtfsCounter, 3657 mSDsluCounter, 19521 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3657 SdHoareTripleChecker+Valid, 23447 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:38:10,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3657 Valid, 23447 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:38:10,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9644 states. [2021-11-22 15:38:10,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9644 to 5005. [2021-11-22 15:38:10,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5005 states, 4157 states have (on average 1.5941784941063266) internal successors, (6627), 5004 states have internal predecessors, (6627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:10,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5005 states to 5005 states and 6627 transitions. [2021-11-22 15:38:10,318 INFO L78 Accepts]: Start accepts. Automaton has 5005 states and 6627 transitions. Word has length 73 [2021-11-22 15:38:10,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:38:10,319 INFO L470 AbstractCegarLoop]: Abstraction has 5005 states and 6627 transitions. [2021-11-22 15:38:10,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:10,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5005 states and 6627 transitions. [2021-11-22 15:38:10,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-22 15:38:10,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:38:10,321 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:38:10,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-22 15:38:10,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:38:10,534 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:38:10,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:38:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash -376896730, now seen corresponding path program 2 times [2021-11-22 15:38:10,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:38:10,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316625362] [2021-11-22 15:38:10,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 15:38:10,535 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:38:10,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:38:10,536 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:38:10,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-22 15:38:10,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 15:38:10,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:38:10,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 15:38:10,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:38:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:11,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:38:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:11,783 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:38:11,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316625362] [2021-11-22 15:38:11,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316625362] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:38:11,784 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:38:11,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-22 15:38:11,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348086861] [2021-11-22 15:38:11,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:38:11,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-22 15:38:11,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:38:11,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-22 15:38:11,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-22 15:38:11,786 INFO L87 Difference]: Start difference. First operand 5005 states and 6627 transitions. Second operand has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:14,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:38:14,212 INFO L93 Difference]: Finished difference Result 9656 states and 12850 transitions. [2021-11-22 15:38:14,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-22 15:38:14,212 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 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 77 [2021-11-22 15:38:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:38:14,223 INFO L225 Difference]: With dead ends: 9656 [2021-11-22 15:38:14,223 INFO L226 Difference]: Without dead ends: 9656 [2021-11-22 15:38:14,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=370, Invalid=622, Unknown=0, NotChecked=0, Total=992 [2021-11-22 15:38:14,224 INFO L933 BasicCegarLoop]: 3926 mSDtfsCounter, 3657 mSDsluCounter, 39027 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3657 SdHoareTripleChecker+Valid, 42953 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:38:14,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3657 Valid, 42953 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-22 15:38:14,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9656 states. [2021-11-22 15:38:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9656 to 5017. [2021-11-22 15:38:14,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5017 states, 4169 states have (on average 1.5924682177980332) internal successors, (6639), 5016 states have internal predecessors, (6639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5017 states to 5017 states and 6639 transitions. [2021-11-22 15:38:14,296 INFO L78 Accepts]: Start accepts. Automaton has 5017 states and 6639 transitions. Word has length 77 [2021-11-22 15:38:14,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:38:14,297 INFO L470 AbstractCegarLoop]: Abstraction has 5017 states and 6639 transitions. [2021-11-22 15:38:14,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.833333333333333) internal successors, (87), 18 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:14,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5017 states and 6639 transitions. [2021-11-22 15:38:14,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-22 15:38:14,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:38:14,298 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:38:14,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-22 15:38:14,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:38:14,498 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:38:14,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:38:14,499 INFO L85 PathProgramCache]: Analyzing trace with hash 688279334, now seen corresponding path program 3 times [2021-11-22 15:38:14,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:38:14,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041920229] [2021-11-22 15:38:14,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 15:38:14,501 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:38:14,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:38:14,510 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:38:14,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-22 15:38:15,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-22 15:38:15,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:38:15,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 15:38:15,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:38:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:15,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:38:17,514 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:17,514 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:38:17,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041920229] [2021-11-22 15:38:17,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041920229] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:38:17,515 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:38:17,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-22 15:38:17,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072279850] [2021-11-22 15:38:17,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:38:17,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-22 15:38:17,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:38:17,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-22 15:38:17,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-22 15:38:17,517 INFO L87 Difference]: Start difference. First operand 5017 states and 6639 transitions. Second operand has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:35,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:38:35,888 INFO L93 Difference]: Finished difference Result 68234 states and 90658 transitions. [2021-11-22 15:38:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-22 15:38:35,889 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 0 states have call successors, (0), 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 85 [2021-11-22 15:38:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:38:35,991 INFO L225 Difference]: With dead ends: 68234 [2021-11-22 15:38:35,992 INFO L226 Difference]: Without dead ends: 68234 [2021-11-22 15:38:35,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=1674, Invalid=4332, Unknown=0, NotChecked=0, Total=6006 [2021-11-22 15:38:35,995 INFO L933 BasicCegarLoop]: 49600 mSDtfsCounter, 106260 mSDsluCounter, 709458 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106260 SdHoareTripleChecker+Valid, 759058 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-22 15:38:35,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106260 Valid, 759058 Invalid, 1747 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [164 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2021-11-22 15:38:36,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68234 states. [2021-11-22 15:38:36,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68234 to 5056. [2021-11-22 15:38:36,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5056 states, 4208 states have (on average 1.591967680608365) internal successors, (6699), 5055 states have internal predecessors, (6699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5056 states to 5056 states and 6699 transitions. [2021-11-22 15:38:36,449 INFO L78 Accepts]: Start accepts. Automaton has 5056 states and 6699 transitions. Word has length 85 [2021-11-22 15:38:36,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:38:36,449 INFO L470 AbstractCegarLoop]: Abstraction has 5056 states and 6699 transitions. [2021-11-22 15:38:36,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:38:36,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5056 states and 6699 transitions. [2021-11-22 15:38:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-22 15:38:36,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:38:36,451 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:38:36,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-22 15:38:36,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:38:36,669 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:38:36,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:38:36,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2300122, now seen corresponding path program 4 times [2021-11-22 15:38:36,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:38:36,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840011984] [2021-11-22 15:38:36,670 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 15:38:36,671 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:38:36,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:38:36,672 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:38:36,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-22 15:38:36,942 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 15:38:36,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:38:36,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-22 15:38:36,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:38:38,497 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:38,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:38:41,914 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:38:41,915 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:38:41,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840011984] [2021-11-22 15:38:41,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840011984] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:38:41,915 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:38:41,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-22 15:38:41,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125434609] [2021-11-22 15:38:41,916 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:38:41,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-22 15:38:41,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:38:41,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-22 15:38:41,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290 [2021-11-22 15:38:41,921 INFO L87 Difference]: Start difference. First operand 5056 states and 6699 transitions. Second operand has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:40:15,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:40:15,051 INFO L93 Difference]: Finished difference Result 9725 states and 12933 transitions. [2021-11-22 15:40:15,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-22 15:40:15,052 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 0 states have call successors, (0), 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 101 [2021-11-22 15:40:15,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:40:15,067 INFO L225 Difference]: With dead ends: 9725 [2021-11-22 15:40:15,067 INFO L226 Difference]: Without dead ends: 9725 [2021-11-22 15:40:15,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3304 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=3577, Invalid=8413, Unknown=0, NotChecked=0, Total=11990 [2021-11-22 15:40:15,074 INFO L933 BasicCegarLoop]: 3926 mSDtfsCounter, 3657 mSDsluCounter, 133059 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3657 SdHoareTripleChecker+Valid, 136985 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.7s IncrementalHoareTripleChecker+Time [2021-11-22 15:40:15,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3657 Valid, 136985 Invalid, 1895 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [638 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 63.7s Time] [2021-11-22 15:40:15,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9725 states. [2021-11-22 15:40:15,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9725 to 5086. [2021-11-22 15:40:15,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 4238 states have (on average 1.5861255309108069) internal successors, (6722), 5085 states have internal predecessors, (6722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:40:15,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 6722 transitions. [2021-11-22 15:40:15,153 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 6722 transitions. Word has length 101 [2021-11-22 15:40:15,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:40:15,153 INFO L470 AbstractCegarLoop]: Abstraction has 5086 states and 6722 transitions. [2021-11-22 15:40:15,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0454545454545454) internal successors, (135), 66 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:40:15,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 6722 transitions. [2021-11-22 15:40:15,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-22 15:40:15,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:40:15,155 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:40:15,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-11-22 15:40:15,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:40:15,370 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:40:15,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:40:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash -146191322, now seen corresponding path program 5 times [2021-11-22 15:40:15,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:40:15,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114960195] [2021-11-22 15:40:15,371 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 15:40:15,372 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:40:15,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:40:15,372 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:40:15,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-22 15:40:16,443 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-11-22 15:40:16,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 15:40:16,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 100 conjunts are in the unsatisfiable core [2021-11-22 15:40:16,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:40:16,513 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 [2021-11-22 15:40:17,003 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 15:40:17,003 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 16 treesize of output 16 [2021-11-22 15:40:17,012 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 [2021-11-22 15:40:17,063 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 [2021-11-22 15:40:17,083 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 [2021-11-22 15:40:17,413 INFO L354 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2021-11-22 15:40:17,414 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 [2021-11-22 15:40:17,454 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-22 15:40:17,454 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 [2021-11-22 15:40:18,147 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:18,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:18,187 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:18,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:18,336 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:18,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:18,367 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:18,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:19,472 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:19,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:19,503 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:19,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:20,920 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:20,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:20,951 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:20,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:24,074 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:24,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:24,105 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:24,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:24,267 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:24,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:27,538 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:27,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:27,722 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:27,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:31,162 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:31,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:31,286 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:31,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:31,316 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:31,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:31,461 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:31,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:31,498 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:31,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:32,187 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:32,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:33,569 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:33,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:34,183 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:34,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:34,210 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:34,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:37,942 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:37,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:37,984 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:37,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:38,168 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:38,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:39,594 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:39,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:39,739 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:39,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:40,229 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:40,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:41,672 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:41,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:43,230 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:43,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:43,353 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:43,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:43,383 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:43,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:43,534 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:43,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:43,567 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:43,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:43,705 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:43,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:43,736 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:43,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:43,874 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:43,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:43,902 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:43,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:44,013 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:44,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:47,149 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:47,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:47,292 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:47,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:47,325 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:47,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:47,455 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:47,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:47,488 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:47,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:49,412 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:49,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:49,442 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:49,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:49,586 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:49,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:50,767 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:50,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:54,499 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:54,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:58,143 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:58,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:58,280 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:58,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:58,316 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:58,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:58,449 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:58,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:40:58,481 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:40:58,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:40:58,610 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:40:58,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:00,673 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:00,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:02,527 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:02,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:02,557 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:02,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:06,461 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:06,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:06,494 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:06,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:06,632 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:06,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:07,849 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:07,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:09,056 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:09,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:10,270 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:10,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:10,406 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:10,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:12,022 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:12,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:14,273 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:14,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:14,305 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:14,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:14,458 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:14,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:16,287 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:16,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:18,028 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:18,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:18,068 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:18,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:21,857 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:21,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:21,892 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:21,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:22,035 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:22,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:24,239 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:24,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:24,373 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:24,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:26,698 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:26,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:26,833 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:26,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:26,868 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:26,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:27,008 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:27,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:29,252 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:29,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:29,395 INFO L354 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2021-11-22 15:41:29,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 69 [2021-11-22 15:41:29,427 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-22 15:41:29,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2021-11-22 15:41:29,602 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:41:29,603 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 [2021-11-22 15:41:29,662 INFO L354 Elim1Store]: treesize reduction 104, result has 19.4 percent of original size [2021-11-22 15:41:29,662 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 [2021-11-22 15:41:30,092 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-22 15:41:30,092 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 95 treesize of output 58 [2021-11-22 15:41:30,102 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-22 15:41:30,102 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 46 treesize of output 26 [2021-11-22 15:41:30,139 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-22 15:41:30,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:41:37,263 WARN L227 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:41:50,778 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_6 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_6 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd .cse0 (_ bv16 32)) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_5 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_5 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 15:43:20,517 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_42 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse2 (bvadd v_subst_42 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 .cse1) .cse2 .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))) (forall ((v_subst_41 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5) (bvadd v_subst_41 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse5))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse4) (bvadd .cse4 (_ bv20 32)))))) is different from false [2021-11-22 15:43:39,138 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_51 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_51 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_52 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_52 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 15:43:41,254 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_54 (_ BitVec 32)) (v_subst_52 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse2 (bvadd v_subst_54 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse3 (bvadd v_subst_52 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))) (forall ((v_subst_51 (_ BitVec 32)) (v_subst_53 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse5 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse6 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse6) (bvadd v_subst_53 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse6) (bvadd v_subst_51 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse6))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse5) (bvadd .cse5 (_ bv20 32)))))) is different from false [2021-11-22 15:43:55,444 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_62 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_62 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_61 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_61 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 15:44:32,909 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_78 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_78 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd .cse0 (_ bv16 32)) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_77 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_77 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 15:44:39,169 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_81 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_81 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_82 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_82 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 15:44:44,607 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (v_subst_86 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_86 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| (_ BitVec 32)) (v_subst_85 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_85 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))) is different from false [2021-11-22 15:45:04,323 WARN L227 SmtUtils]: Spent 6.55s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 15:45:19,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2021-11-22 15:45:20,112 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 22 proven. 36 refuted. 13 times theorem prover too weak. 595 trivial. 324 not checked. [2021-11-22 15:45:20,113 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:45:20,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114960195] [2021-11-22 15:45:20,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114960195] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:45:20,113 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-22 15:45:20,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17] total 25 [2021-11-22 15:45:20,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657129539] [2021-11-22 15:45:20,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-22 15:45:20,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-22 15:45:20,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:45:20,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-22 15:45:20,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=249, Unknown=11, NotChecked=312, Total=650 [2021-11-22 15:45:20,115 INFO L87 Difference]: Start difference. First operand 5086 states and 6722 transitions. Second operand has 26 states, 25 states have (on average 6.36) internal successors, (159), 26 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:45:25,460 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse22 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse10 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse22))) (and (forall ((v_subst_6 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_6 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd .cse0 (_ bv16 32)) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_42 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse2 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse4 (bvadd v_subst_42 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 .cse3) .cse4 .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse2 (_ bv0 32)) .cse4 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))))) (forall ((v_subst_62 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse6 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse7 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse7) (bvadd v_subst_62 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse7))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse6) (bvadd .cse6 (_ bv20 32))))) (forall ((v_subst_78 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse8 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse9) (bvadd v_subst_78 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse9))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd .cse8 (_ bv16 32)) (bvadd .cse8 (_ bv20 32))))) (= |c_ULTIMATE.start_main_#t~mem38#1.base| .cse10) (= |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| .cse10) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| |c_ULTIMATE.start_main_~user~0#1.base|))) (= (select |c_#length| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (_ bv44 32)) (not (= |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| |c_ULTIMATE.start_main_~user~0#1.base|)) (forall ((v_subst_54 (_ BitVec 32)) (v_subst_52 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse11 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse13 (bvadd v_subst_54 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse14 (bvadd v_subst_52 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse15 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse11 .cse12) .cse13 .cse12) .cse14 .cse12))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse15) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse11 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse15))))) (forall ((v_subst_81 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse16 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse17 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse17) (bvadd v_subst_81 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse17))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse16) (bvadd .cse16 (_ bv20 32))))) (not (= |c_ULTIMATE.start_main_~user~0#1.base| .cse10)) (forall ((v_subst_5 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse18 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse20 (bvadd v_subst_5 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse21 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse19 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse18 .cse19) .cse20 .cse19))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse21) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse18 (_ bv0 32)) .cse20 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse21))))) (= (_ bv0 32) |c_ULTIMATE.start_main_~user~0#1.offset|) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse22) (_ bv0 32)) (= (select |c_#length| .cse10) (_ bv44 32)) (forall ((v_subst_82 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse23 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse25 (bvadd v_subst_82 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse26 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse24 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse23 .cse24) .cse25 .cse24))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse26) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse23 (_ bv0 32)) .cse25 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse26))))) (exists ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_125| (_ BitVec 32))) (let ((.cse27 (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_125| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|))) (and (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse27) ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|))) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse27) (_ bv0 32))))) (forall ((v_subst_51 (_ BitVec 32)) (v_subst_53 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse28 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse29 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse29) (bvadd v_subst_53 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse29) (bvadd v_subst_51 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse29))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse28) (bvadd .cse28 (_ bv20 32))))) (forall ((v_subst_41 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse30 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse31 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse31) (bvadd v_subst_41 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse31))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse30) (bvadd .cse30 (_ bv20 32))))) (forall ((v_subst_61 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse32 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse34 (bvadd v_subst_61 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse35 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse33 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse32 .cse33) .cse34 .cse33))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse35) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse32 (_ bv0 32)) .cse34 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse35))))) (forall ((v_subst_77 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse36 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse38 (bvadd v_subst_77 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse39 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse37 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse36 .cse37) .cse38 .cse37))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse39) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse36 (_ bv0 32)) .cse38 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse39)))))))) is different from true [2021-11-22 15:45:27,490 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse12 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_subst_6 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1) (bvadd v_subst_6 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse1))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd .cse0 (_ bv16 32)) (bvadd .cse0 (_ bv20 32))))) (forall ((v_subst_51 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse3) (bvadd v_subst_51 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse3))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse2) (bvadd .cse2 (_ bv20 32))))) (forall ((v_subst_42 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse4 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse6 (bvadd v_subst_42 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse7 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse4 .cse5) .cse6 .cse5))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse7) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse4 (_ bv0 32)) .cse6 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse7))))) (forall ((v_subst_62 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse8 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse9 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse9) (bvadd v_subst_62 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse9))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse8) (bvadd .cse8 (_ bv20 32))))) (forall ((v_subst_78 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse10 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse11) (bvadd v_subst_78 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse11))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd .cse10 (_ bv16 32)) (bvadd .cse10 (_ bv20 32))))) (= |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse12)) (= (select |c_#length| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (_ bv44 32)) (not (= |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| |c_ULTIMATE.start_main_~user~0#1.base|)) (forall ((v_subst_54 (_ BitVec 32)) (v_subst_52 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse13 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse15 (bvadd v_subst_54 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse16 (bvadd v_subst_52 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse17 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse13 .cse14) .cse15 .cse14) .cse16 .cse14))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse17) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse13 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse17))))) (forall ((v_subst_81 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse18 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse19 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse19) (bvadd v_subst_81 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse19))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse18) (bvadd .cse18 (_ bv20 32))))) (forall ((v_subst_5 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse20 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse22 (bvadd v_subst_5 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse23 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse21 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse20 .cse21) .cse22 .cse21))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse23) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse20 (_ bv0 32)) .cse22 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse23))))) (= (_ bv0 32) |c_ULTIMATE.start_main_~user~0#1.offset|) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse12) (_ bv0 32)) (forall ((v_subst_82 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse24 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse26 (bvadd v_subst_82 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse27 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse25 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse24 .cse25) .cse26 .cse25))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse27) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse24 (_ bv0 32)) .cse26 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse27))))) (exists ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_125| (_ BitVec 32))) (let ((.cse28 (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_125| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|))) (and (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse28) ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|))) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse28) (_ bv0 32))))) (forall ((v_subst_51 (_ BitVec 32)) (v_subst_53 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse29 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse30 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse30) (bvadd v_subst_53 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse30) (bvadd v_subst_51 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse30))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse29) (bvadd .cse29 (_ bv20 32))))) (forall ((v_subst_41 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse31 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse32 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse32) (bvadd v_subst_41 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) .cse32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) (bvule (bvadd (_ bv16 32) .cse31) (bvadd .cse31 (_ bv20 32))))) (forall ((v_subst_61 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse33 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse35 (bvadd v_subst_61 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse36 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse34 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse33 .cse34) .cse35 .cse34))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse36) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse33 (_ bv0 32)) .cse35 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse36))))) (forall ((v_subst_77 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse37 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse39 (bvadd v_subst_77 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse40 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse38 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse37 .cse38) .cse39 .cse38))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse40) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse37 (_ bv0 32)) .cse39 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse40))))) (forall ((v_subst_52 (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (let ((.cse41 (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse43 (bvadd v_subst_52 |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|)) (.cse44 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (let ((.cse42 ((_ zero_extend 24) ((_ extract 7 0) |c_ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse41 .cse42) .cse43 .cse42))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse44)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) .cse41 (_ bv0 32)) .cse43 (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse44))))))) is different from true [2021-11-22 15:45:45,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:45:45,616 INFO L93 Difference]: Finished difference Result 13776 states and 18516 transitions. [2021-11-22 15:45:45,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 15:45:45,618 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.36) internal successors, (159), 26 states have internal predecessors, (159), 0 states have call successors, (0), 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 115 [2021-11-22 15:45:45,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:45:45,639 INFO L225 Difference]: With dead ends: 13776 [2021-11-22 15:45:45,640 INFO L226 Difference]: Without dead ends: 13776 [2021-11-22 15:45:45,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 129 SyntacticMatches, 76 SemanticMatches, 31 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 221.0s TimeCoverageRelationStatistics Valid=130, Invalid=403, Unknown=13, NotChecked=510, Total=1056 [2021-11-22 15:45:45,641 INFO L933 BasicCegarLoop]: 6799 mSDtfsCounter, 7083 mSDsluCounter, 39783 mSDsCounter, 0 mSdLazyCounter, 3417 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7083 SdHoareTripleChecker+Valid, 46582 SdHoareTripleChecker+Invalid, 62716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59284 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:45:45,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7083 Valid, 46582 Invalid, 62716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 3417 Invalid, 0 Unknown, 59284 Unchecked, 18.3s Time] [2021-11-22 15:45:45,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13776 states. [2021-11-22 15:45:45,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13776 to 5085. [2021-11-22 15:45:45,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 4238 states have (on average 1.5858895705521472) internal successors, (6721), 5084 states have internal predecessors, (6721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:45:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 6721 transitions. [2021-11-22 15:45:45,731 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 6721 transitions. Word has length 115 [2021-11-22 15:45:45,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:45:45,731 INFO L470 AbstractCegarLoop]: Abstraction has 5085 states and 6721 transitions. [2021-11-22 15:45:45,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.36) internal successors, (159), 26 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:45:45,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 6721 transitions. [2021-11-22 15:45:45,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-22 15:45:45,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:45:45,733 INFO L514 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:45:45,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-11-22 15:45:45,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:45:45,946 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 1031 more)] === [2021-11-22 15:45:45,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:45:45,946 INFO L85 PathProgramCache]: Analyzing trace with hash -146191323, now seen corresponding path program 1 times [2021-11-22 15:45:45,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:45:45,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64361660] [2021-11-22 15:45:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:45:45,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:45:45,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:45:45,948 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:45:45,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb17a2a1-3abb-434c-bf92-0db175f6a2c1/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-22 15:45:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:45:46,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-22 15:45:46,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:45:46,465 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 [2021-11-22 15:45:46,837 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-22 15:45:46,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 26 [2021-11-22 15:45:46,897 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 26 treesize of output 22 [2021-11-22 15:45:47,321 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-22 15:45:47,321 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 48 treesize of output 35 [2021-11-22 15:45:48,268 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:45:48,269 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 59 treesize of output 49 [2021-11-22 15:45:49,972 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:45:49,972 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 59 treesize of output 49 [2021-11-22 15:45:50,151 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:45:50,151 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 57 treesize of output 47 [2021-11-22 15:45:51,475 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:45:51,475 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 57 treesize of output 47 [2021-11-22 15:45:52,746 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:45:52,746 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 60 treesize of output 50 [2021-11-22 15:45:53,670 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:45:53,670 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 57 treesize of output 47 [2021-11-22 15:45:59,908 WARN L227 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 38 DAG size of output: 18 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-22 15:45:59,908 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:45:59,909 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 58 treesize of output 48 [2021-11-22 15:46:00,085 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:00,085 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 58 treesize of output 48 [2021-11-22 15:46:01,756 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:01,756 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 58 treesize of output 48 [2021-11-22 15:46:01,923 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:01,923 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 59 treesize of output 49 [2021-11-22 15:46:02,104 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:02,104 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 57 treesize of output 47 [2021-11-22 15:46:02,274 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:02,275 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 57 treesize of output 47 [2021-11-22 15:46:02,444 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:02,444 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 57 treesize of output 47 [2021-11-22 15:46:05,147 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:05,148 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 60 treesize of output 50 [2021-11-22 15:46:05,324 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:05,325 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 57 treesize of output 47 [2021-11-22 15:46:10,452 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 38 DAG size of output: 18 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-22 15:46:10,453 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:10,453 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 58 treesize of output 48 [2021-11-22 15:46:10,713 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:10,713 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 58 treesize of output 48 [2021-11-22 15:46:10,913 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:10,914 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 57 treesize of output 47 [2021-11-22 15:46:11,104 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:11,104 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 59 treesize of output 49 [2021-11-22 15:46:11,288 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:11,289 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 58 treesize of output 48 [2021-11-22 15:46:11,488 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:11,489 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 59 treesize of output 49 [2021-11-22 15:46:11,669 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:11,669 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 57 treesize of output 47 [2021-11-22 15:46:11,863 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:11,863 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 57 treesize of output 47 [2021-11-22 15:46:14,289 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:14,289 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 57 treesize of output 47 [2021-11-22 15:46:14,486 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:14,486 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 57 treesize of output 47 [2021-11-22 15:46:14,724 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:14,725 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 58 treesize of output 48 [2021-11-22 15:46:14,909 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:14,910 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 57 treesize of output 47 [2021-11-22 15:46:20,045 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 38 DAG size of output: 22 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-22 15:46:20,045 INFO L354 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2021-11-22 15:46:20,046 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 59 treesize of output 53 [2021-11-22 15:46:20,729 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:20,729 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 57 treesize of output 47 [2021-11-22 15:46:22,721 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:22,721 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 58 treesize of output 48 [2021-11-22 15:46:22,890 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:22,891 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 57 treesize of output 47 [2021-11-22 15:46:23,065 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:23,065 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 58 treesize of output 48 [2021-11-22 15:46:25,285 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:25,285 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 58 treesize of output 48 [2021-11-22 15:46:27,700 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:27,701 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 60 treesize of output 50 [2021-11-22 15:46:27,866 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:27,866 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 58 treesize of output 48 [2021-11-22 15:46:28,036 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:28,036 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 59 treesize of output 49 [2021-11-22 15:46:29,629 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:29,630 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 57 treesize of output 47 [2021-11-22 15:46:29,801 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:29,801 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 58 treesize of output 48 [2021-11-22 15:46:31,401 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:31,401 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 59 treesize of output 49 [2021-11-22 15:46:31,586 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:31,586 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 58 treesize of output 48 [2021-11-22 15:46:33,270 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:33,270 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 57 treesize of output 47 [2021-11-22 15:46:34,132 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:34,132 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 57 treesize of output 47 [2021-11-22 15:46:34,302 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-22 15:46:34,302 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 67 treesize of output 48 [2021-11-22 15:46:34,535 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-22 15:46:34,536 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 74 treesize of output 35 [2021-11-22 15:46:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 43 proven. 44 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-11-22 15:46:34,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:46:54,008 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_260| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_266| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_266| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_260| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) (_ bv1 1)))) is different from false [2021-11-22 15:47:02,943 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_260| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_272| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_272| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_260| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))))) is different from false [2021-11-22 15:47:50,402 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_288| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_288| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))))) is different from false [2021-11-22 15:48:36,210 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_300| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_300| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) (_ bv1 1)))) is different from false [2021-11-22 15:48:53,082 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_306| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_306| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))))) is different from false [2021-11-22 15:50:10,770 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_260| (_ BitVec 32)) (|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_324| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_324| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_260| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))))) (_ bv1 1)))) is different from false [2021-11-22 15:50:17,475 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_328| (_ BitVec 32)) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base|) (bvadd |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32)) (bvadd |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr237#1_328| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (_ bv0 32))) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))))) (_ bv1 1)))) is different from false