./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF --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 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:38:46,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:38:46,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:38:46,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:38:46,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:38:46,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:38:46,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:38:46,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:38:46,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:38:46,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:38:46,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:38:46,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:38:46,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:38:46,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:38:46,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:38:46,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:38:46,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:38:46,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:38:46,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:38:46,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:38:46,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:38:46,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:38:46,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:38:46,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:38:46,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:38:46,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:38:46,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:38:46,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:38:46,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:38:46,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:38:46,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:38:46,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:38:46,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:38:46,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:38:46,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:38:46,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:38:46,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:38:46,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:38:46,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:38:46,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:38:46,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:38:46,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-20 07:38:46,222 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:38:46,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:38:46,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:38:46,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:38:46,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:38:46,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:38:46,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:38:46,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:38:46,225 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:38:46,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:38:46,225 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:38:46,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:38:46,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:38:46,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:38:46,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:38:46,227 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 07:38:46,227 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 07:38:46,227 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 07:38:46,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:38:46,227 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:38:46,228 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:38:46,228 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:38:46,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:38:46,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:38:46,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:38:46,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:38:46,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:38:46,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:38:46,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:38:46,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:38:46,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:38:46,230 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 [2021-11-20 07:38:46,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:38:46,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:38:46,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:38:46,569 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:38:46,570 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:38:46,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2021-11-20 07:38:46,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data/23f66d5be/14e2f8ebb7c849b6bc15df42aae8a943/FLAG092208bc7 [2021-11-20 07:38:47,241 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:38:47,242 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2021-11-20 07:38:47,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data/23f66d5be/14e2f8ebb7c849b6bc15df42aae8a943/FLAG092208bc7 [2021-11-20 07:38:47,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data/23f66d5be/14e2f8ebb7c849b6bc15df42aae8a943 [2021-11-20 07:38:47,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:38:47,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:38:47,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:38:47,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:38:47,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:38:47,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:38:47" (1/1) ... [2021-11-20 07:38:47,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d64a02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:47, skipping insertion in model container [2021-11-20 07:38:47,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:38:47" (1/1) ... [2021-11-20 07:38:47,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:38:47,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:38:48,379 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[37019,37032] [2021-11-20 07:38:48,527 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[47352,47365] [2021-11-20 07:38:48,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:38:48,566 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) [2021-11-20 07:38:48,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7471f80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:48, skipping insertion in model container [2021-11-20 07:38:48,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:38:48,578 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-20 07:38:48,581 INFO L158 Benchmark]: Toolchain (without parser) took 1067.69ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 45.7MB in the beginning and 76.0MB in the end (delta: -30.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-20 07:38:48,582 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 64.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:38:48,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1064.31ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 45.5MB in the beginning and 76.0MB in the end (delta: -30.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-20 07:38:48,586 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 83.9MB. Free memory was 64.3MB in the beginning and 64.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1064.31ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 45.5MB in the beginning and 76.0MB in the end (delta: -30.5MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF --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 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:38:51,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:38:51,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:38:51,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:38:51,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:38:51,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:38:51,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:38:51,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:38:51,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:38:51,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:38:51,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:38:51,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:38:51,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:38:51,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:38:51,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:38:51,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:38:51,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:38:51,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:38:51,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:38:51,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:38:51,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:38:51,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:38:51,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:38:51,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:38:51,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:38:51,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:38:51,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:38:51,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:38:51,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:38:51,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:38:51,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:38:51,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:38:51,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:38:51,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:38:51,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:38:51,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:38:51,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:38:51,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:38:51,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:38:51,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:38:51,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:38:51,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-20 07:38:51,498 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:38:51,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:38:51,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:38:51,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:38:51,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:38:51,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:38:51,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:38:51,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:38:51,501 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:38:51,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:38:51,502 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:38:51,502 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:38:51,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:38:51,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:38:51,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:38:51,503 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 07:38:51,503 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 07:38:51,503 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 07:38:51,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:38:51,504 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:38:51,504 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 07:38:51,504 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 07:38:51,504 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:38:51,504 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:38:51,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:38:51,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:38:51,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:38:51,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:38:51,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:38:51,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:38:51,506 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 07:38:51,506 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 07:38:51,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:38:51,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 07:38:51,507 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 [2021-11-20 07:38:51,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:38:51,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:38:51,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:38:51,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:38:51,914 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:38:51,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2021-11-20 07:38:51,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data/a77ca89f9/effae98b2e984d03af8f207a96c9d7bc/FLAG7b702d22d [2021-11-20 07:38:52,668 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:38:52,668 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2021-11-20 07:38:52,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data/a77ca89f9/effae98b2e984d03af8f207a96c9d7bc/FLAG7b702d22d [2021-11-20 07:38:52,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/data/a77ca89f9/effae98b2e984d03af8f207a96c9d7bc [2021-11-20 07:38:52,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:38:52,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:38:52,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:38:52,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:38:52,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:38:52,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:38:52" (1/1) ... [2021-11-20 07:38:52,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7984f1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:52, skipping insertion in model container [2021-11-20 07:38:52,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:38:52" (1/1) ... [2021-11-20 07:38:52,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:38:52,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:38:53,507 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[37019,37032] [2021-11-20 07:38:53,689 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[47352,47365] [2021-11-20 07:38:53,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:38:53,739 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-20 07:38:53,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:38:53,795 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[37019,37032] [2021-11-20 07:38:53,909 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[47352,47365] [2021-11-20 07:38:53,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:38:53,944 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:38:54,010 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[37019,37032] [2021-11-20 07:38:54,089 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_4268ee87-d912-4e6d-8279-b74c9fb6eada/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i[47352,47365] [2021-11-20 07:38:54,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:38:54,167 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:38:54,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54 WrapperNode [2021-11-20 07:38:54,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:38:54,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:38:54,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:38:54,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:38:54,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,354 INFO L137 Inliner]: procedures = 211, calls = 286, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1054 [2021-11-20 07:38:54,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:38:54,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:38:54,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:38:54,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:38:54,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:38:54,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:38:54,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:38:54,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:38:54,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (1/1) ... [2021-11-20 07:38:54,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:38:54,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:38:54,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:38:54,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:38:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-20 07:38:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 07:38:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 07:38:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 07:38:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:38:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 07:38:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:38:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:38:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 07:38:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 07:38:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 07:38:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 07:38:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:38:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:38:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:38:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:38:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:38:55,112 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:38:55,115 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:38:55,121 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 07:39:00,993 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:39:01,008 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:39:01,008 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-20 07:39:01,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:39:01 BoogieIcfgContainer [2021-11-20 07:39:01,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:39:01,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:39:01,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:39:01,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:39:01,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:38:52" (1/3) ... [2021-11-20 07:39:01,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6950cb5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:39:01, skipping insertion in model container [2021-11-20 07:39:01,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:38:54" (2/3) ... [2021-11-20 07:39:01,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6950cb5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:39:01, skipping insertion in model container [2021-11-20 07:39:01,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:39:01" (3/3) ... [2021-11-20 07:39:01,021 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test2-2.i [2021-11-20 07:39:01,026 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:39:01,027 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 536 error locations. [2021-11-20 07:39:01,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:39:01,080 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 [2021-11-20 07:39:01,081 INFO L340 AbstractCegarLoop]: Starting to check reachability of 536 error locations. [2021-11-20 07:39:01,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 1081 states, 537 states have (on average 2.2364990689013036) internal successors, (1201), 1075 states have internal predecessors, (1201), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:39:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 07:39:01,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:01,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 07:39:01,159 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:01,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:01,170 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2021-11-20 07:39:01,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:01,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645558797] [2021-11-20 07:39:01,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:01,184 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:01,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:01,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:01,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 07:39:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:01,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:39:01,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:01,435 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 [2021-11-20 07:39:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:01,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:01,480 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:01,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645558797] [2021-11-20 07:39:01,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645558797] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:01,482 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:01,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 07:39:01,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869647773] [2021-11-20 07:39:01,485 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:01,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:01,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:01,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:01,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:01,522 INFO L87 Difference]: Start difference. First operand has 1081 states, 537 states have (on average 2.2364990689013036) internal successors, (1201), 1075 states have internal predecessors, (1201), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) 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) [2021-11-20 07:39:04,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:04,670 INFO L93 Difference]: Finished difference Result 1245 states and 1321 transitions. [2021-11-20 07:39:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:04,674 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 [2021-11-20 07:39:04,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:04,709 INFO L225 Difference]: With dead ends: 1245 [2021-11-20 07:39:04,709 INFO L226 Difference]: Without dead ends: 1243 [2021-11-20 07:39:04,711 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 [2021-11-20 07:39:04,717 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 995 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:04,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 805 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-20 07:39:04,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2021-11-20 07:39:04,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1065. [2021-11-20 07:39:04,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 537 states have (on average 2.080074487895717) internal successors, (1117), 1059 states have internal predecessors, (1117), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:39:04,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1133 transitions. [2021-11-20 07:39:04,862 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1133 transitions. Word has length 3 [2021-11-20 07:39:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:04,862 INFO L470 AbstractCegarLoop]: Abstraction has 1065 states and 1133 transitions. [2021-11-20 07:39:04,863 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) [2021-11-20 07:39:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1133 transitions. [2021-11-20 07:39:04,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 07:39:04,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:04,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 07:39:04,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:05,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:05,078 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:05,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:05,079 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2021-11-20 07:39:05,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:05,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678975533] [2021-11-20 07:39:05,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:05,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:05,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:05,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:05,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 07:39:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:05,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:39:05,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:05,244 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 [2021-11-20 07:39:05,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:05,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:05,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:05,327 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:05,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678975533] [2021-11-20 07:39:05,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678975533] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:05,328 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:05,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-20 07:39:05,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831124139] [2021-11-20 07:39:05,330 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:05,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:39:05,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:05,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:39:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:39:05,338 INFO L87 Difference]: Start difference. First operand 1065 states and 1133 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) [2021-11-20 07:39:10,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:10,910 INFO L93 Difference]: Finished difference Result 1558 states and 1671 transitions. [2021-11-20 07:39:10,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:39:10,911 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 [2021-11-20 07:39:10,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:10,920 INFO L225 Difference]: With dead ends: 1558 [2021-11-20 07:39:10,920 INFO L226 Difference]: Without dead ends: 1558 [2021-11-20 07:39:10,920 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 [2021-11-20 07:39:10,922 INFO L933 BasicCegarLoop]: 801 mSDtfsCounter, 1187 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:10,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1197 Valid, 1610 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-20 07:39:10,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-11-20 07:39:10,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1100. [2021-11-20 07:39:10,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 581 states have (on average 2.0585197934595527) internal successors, (1196), 1094 states have internal predecessors, (1196), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:39:10,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1212 transitions. [2021-11-20 07:39:10,973 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1212 transitions. Word has length 3 [2021-11-20 07:39:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:10,973 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1212 transitions. [2021-11-20 07:39:10,974 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) [2021-11-20 07:39:10,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1212 transitions. [2021-11-20 07:39:10,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 07:39:10,974 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:10,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:10,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:11,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:11,185 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:11,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476910, now seen corresponding path program 1 times [2021-11-20 07:39:11,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:11,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920181820] [2021-11-20 07:39:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:11,187 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:11,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:11,188 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:11,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 07:39:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:11,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:39:11,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:11,346 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 [2021-11-20 07:39:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:11,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:11,396 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:11,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920181820] [2021-11-20 07:39:11,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920181820] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:11,400 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:11,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 07:39:11,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661458848] [2021-11-20 07:39:11,400 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:11,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:11,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:11,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:11,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:11,403 INFO L87 Difference]: Start difference. First operand 1100 states and 1212 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) [2021-11-20 07:39:13,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:13,374 INFO L93 Difference]: Finished difference Result 1277 states and 1416 transitions. [2021-11-20 07:39:13,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:13,376 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 [2021-11-20 07:39:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:13,385 INFO L225 Difference]: With dead ends: 1277 [2021-11-20 07:39:13,385 INFO L226 Difference]: Without dead ends: 1277 [2021-11-20 07:39:13,386 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 [2021-11-20 07:39:13,387 INFO L933 BasicCegarLoop]: 908 mSDtfsCounter, 816 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:13,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 1186 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 07:39:13,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2021-11-20 07:39:13,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1053. [2021-11-20 07:39:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 581 states have (on average 1.972461273666093) internal successors, (1146), 1047 states have internal predecessors, (1146), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:39:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1162 transitions. [2021-11-20 07:39:13,428 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1162 transitions. Word has length 8 [2021-11-20 07:39:13,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:13,428 INFO L470 AbstractCegarLoop]: Abstraction has 1053 states and 1162 transitions. [2021-11-20 07:39:13,429 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) [2021-11-20 07:39:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1162 transitions. [2021-11-20 07:39:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 07:39:13,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:13,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:13,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:13,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:13,644 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:13,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:13,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476909, now seen corresponding path program 1 times [2021-11-20 07:39:13,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:13,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886136647] [2021-11-20 07:39:13,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:13,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:13,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:13,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:13,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 07:39:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:13,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:39:13,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:13,829 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 [2021-11-20 07:39:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:13,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:13,991 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:13,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886136647] [2021-11-20 07:39:13,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886136647] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:13,992 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:13,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-20 07:39:13,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197894976] [2021-11-20 07:39:13,993 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:13,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:39:13,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:13,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:39:13,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:39:13,995 INFO L87 Difference]: Start difference. First operand 1053 states and 1162 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) [2021-11-20 07:39:18,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:18,501 INFO L93 Difference]: Finished difference Result 1307 states and 1410 transitions. [2021-11-20 07:39:18,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:39:18,502 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 [2021-11-20 07:39:18,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:18,510 INFO L225 Difference]: With dead ends: 1307 [2021-11-20 07:39:18,511 INFO L226 Difference]: Without dead ends: 1307 [2021-11-20 07:39:18,511 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 [2021-11-20 07:39:18,512 INFO L933 BasicCegarLoop]: 1068 mSDtfsCounter, 1042 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:18,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1048 Valid, 1510 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-20 07:39:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2021-11-20 07:39:18,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1043. [2021-11-20 07:39:18,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 581 states have (on average 1.9500860585197934) internal successors, (1133), 1037 states have internal predecessors, (1133), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-20 07:39:18,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1149 transitions. [2021-11-20 07:39:18,543 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1149 transitions. Word has length 8 [2021-11-20 07:39:18,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:18,544 INFO L470 AbstractCegarLoop]: Abstraction has 1043 states and 1149 transitions. [2021-11-20 07:39:18,544 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) [2021-11-20 07:39:18,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1149 transitions. [2021-11-20 07:39:18,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 07:39:18,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:18,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:18,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:18,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:18,756 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr429REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:18,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:18,756 INFO L85 PathProgramCache]: Analyzing trace with hash 871160987, now seen corresponding path program 1 times [2021-11-20 07:39:18,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:18,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157458427] [2021-11-20 07:39:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:18,757 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:18,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:18,758 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:18,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 07:39:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:18,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:39:18,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:18,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:19,052 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:19,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157458427] [2021-11-20 07:39:19,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157458427] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:19,052 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:19,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 07:39:19,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113538579] [2021-11-20 07:39:19,053 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:19,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:39:19,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:19,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:39:19,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:39:19,055 INFO L87 Difference]: Start difference. First operand 1043 states and 1149 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) [2021-11-20 07:39:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:19,461 INFO L93 Difference]: Finished difference Result 1516 states and 1666 transitions. [2021-11-20 07:39:19,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:19,462 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 [2021-11-20 07:39:19,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:19,473 INFO L225 Difference]: With dead ends: 1516 [2021-11-20 07:39:19,473 INFO L226 Difference]: Without dead ends: 1516 [2021-11-20 07:39:19,473 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 [2021-11-20 07:39:19,475 INFO L933 BasicCegarLoop]: 1133 mSDtfsCounter, 570 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2042 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 [2021-11-20 07:39:19,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 2042 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 07:39:19,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2021-11-20 07:39:19,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1223. [2021-11-20 07:39:19,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 756 states have (on average 1.8981481481481481) internal successors, (1435), 1217 states have internal predecessors, (1435), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:19,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1461 transitions. [2021-11-20 07:39:19,545 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1461 transitions. Word has length 11 [2021-11-20 07:39:19,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:19,545 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 1461 transitions. [2021-11-20 07:39:19,545 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) [2021-11-20 07:39:19,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1461 transitions. [2021-11-20 07:39:19,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 07:39:19,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:19,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:19,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:19,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:19,763 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:19,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:19,764 INFO L85 PathProgramCache]: Analyzing trace with hash -702153283, now seen corresponding path program 1 times [2021-11-20 07:39:19,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:19,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032152496] [2021-11-20 07:39:19,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:19,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:19,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:19,766 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:19,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 07:39:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:19,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:39:19,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:19,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:20,001 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:20,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032152496] [2021-11-20 07:39:20,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032152496] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:20,002 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:20,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 07:39:20,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157932788] [2021-11-20 07:39:20,003 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:20,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:39:20,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:20,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:39:20,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:39:20,005 INFO L87 Difference]: Start difference. First operand 1223 states and 1461 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) [2021-11-20 07:39:20,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:20,070 INFO L93 Difference]: Finished difference Result 1377 states and 1601 transitions. [2021-11-20 07:39:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:20,072 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 [2021-11-20 07:39:20,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:20,083 INFO L225 Difference]: With dead ends: 1377 [2021-11-20 07:39:20,083 INFO L226 Difference]: Without dead ends: 1377 [2021-11-20 07:39:20,083 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 [2021-11-20 07:39:20,085 INFO L933 BasicCegarLoop]: 1224 mSDtfsCounter, 808 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:20,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [813 Valid, 2048 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:39:20,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2021-11-20 07:39:20,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1163. [2021-11-20 07:39:20,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 720 states have (on average 1.8736111111111111) internal successors, (1349), 1157 states have internal predecessors, (1349), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1375 transitions. [2021-11-20 07:39:20,129 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1375 transitions. Word has length 13 [2021-11-20 07:39:20,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:20,130 INFO L470 AbstractCegarLoop]: Abstraction has 1163 states and 1375 transitions. [2021-11-20 07:39:20,130 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) [2021-11-20 07:39:20,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1375 transitions. [2021-11-20 07:39:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 07:39:20,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:20,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:20,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:20,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:20,350 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr534ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:20,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:20,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1723272146, now seen corresponding path program 1 times [2021-11-20 07:39:20,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:20,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576654068] [2021-11-20 07:39:20,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:20,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:20,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:20,353 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:20,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 07:39:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:20,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:39:20,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:20,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:39:20,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:39:20,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:39:20,667 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-20 07:39:20,668 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 [2021-11-20 07:39:20,747 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-20 07:39:20,747 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 [2021-11-20 07:39:20,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:20,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:20,877 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:20,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576654068] [2021-11-20 07:39:20,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576654068] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:20,878 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:20,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 07:39:20,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102823848] [2021-11-20 07:39:20,878 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:20,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:39:20,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:20,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:39:20,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:39:20,880 INFO L87 Difference]: Start difference. First operand 1163 states and 1375 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) [2021-11-20 07:39:23,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:23,310 INFO L93 Difference]: Finished difference Result 1500 states and 1763 transitions. [2021-11-20 07:39:23,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:39:23,311 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 [2021-11-20 07:39:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:23,320 INFO L225 Difference]: With dead ends: 1500 [2021-11-20 07:39:23,321 INFO L226 Difference]: Without dead ends: 1500 [2021-11-20 07:39:23,321 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 [2021-11-20 07:39:23,322 INFO L933 BasicCegarLoop]: 986 mSDtfsCounter, 342 mSDsluCounter, 3706 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:23,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 4692 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 07:39:23,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2021-11-20 07:39:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1162. [2021-11-20 07:39:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 719 states have (on average 1.8734353268428372) internal successors, (1347), 1156 states have internal predecessors, (1347), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:23,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1373 transitions. [2021-11-20 07:39:23,378 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1373 transitions. Word has length 14 [2021-11-20 07:39:23,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:23,379 INFO L470 AbstractCegarLoop]: Abstraction has 1162 states and 1373 transitions. [2021-11-20 07:39:23,379 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) [2021-11-20 07:39:23,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1373 transitions. [2021-11-20 07:39:23,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 07:39:23,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:23,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:39:23,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:23,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:23,593 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:23,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:23,594 INFO L85 PathProgramCache]: Analyzing trace with hash -344619170, now seen corresponding path program 1 times [2021-11-20 07:39:23,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:23,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563813141] [2021-11-20 07:39:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:23,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:23,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:23,596 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:23,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-20 07:39:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:23,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:39:23,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:23,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:23,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:23,838 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:23,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563813141] [2021-11-20 07:39:23,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563813141] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:23,838 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:23,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 07:39:23,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139131504] [2021-11-20 07:39:23,839 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:23,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:39:23,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:23,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:39:23,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:39:23,840 INFO L87 Difference]: Start difference. First operand 1162 states and 1373 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) [2021-11-20 07:39:23,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:23,886 INFO L93 Difference]: Finished difference Result 1102 states and 1287 transitions. [2021-11-20 07:39:23,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:39:23,887 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 [2021-11-20 07:39:23,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:23,892 INFO L225 Difference]: With dead ends: 1102 [2021-11-20 07:39:23,892 INFO L226 Difference]: Without dead ends: 1102 [2021-11-20 07:39:23,893 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 [2021-11-20 07:39:23,894 INFO L933 BasicCegarLoop]: 976 mSDtfsCounter, 1890 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:23,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1898 Valid, 1008 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:39:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2021-11-20 07:39:23,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2021-11-20 07:39:23,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 683 states have (on average 1.8462664714494876) internal successors, (1261), 1096 states have internal predecessors, (1261), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:23,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1287 transitions. [2021-11-20 07:39:23,921 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1287 transitions. Word has length 18 [2021-11-20 07:39:23,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:23,922 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1287 transitions. [2021-11-20 07:39:23,922 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) [2021-11-20 07:39:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1287 transitions. [2021-11-20 07:39:23,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 07:39:23,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:23,923 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] [2021-11-20 07:39:23,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-20 07:39:24,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:24,137 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:24,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:24,137 INFO L85 PathProgramCache]: Analyzing trace with hash -466544200, now seen corresponding path program 1 times [2021-11-20 07:39:24,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:24,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011900512] [2021-11-20 07:39:24,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:24,138 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:24,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:24,140 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:24,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-20 07:39:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:24,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:39:24,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:24,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:24,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:24,449 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:24,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011900512] [2021-11-20 07:39:24,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011900512] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:24,450 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:24,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-20 07:39:24,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365012507] [2021-11-20 07:39:24,450 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:24,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:39:24,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:24,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:39:24,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:39:24,453 INFO L87 Difference]: Start difference. First operand 1102 states and 1287 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) [2021-11-20 07:39:24,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:24,548 INFO L93 Difference]: Finished difference Result 1074 states and 1231 transitions. [2021-11-20 07:39:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:39:24,549 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 [2021-11-20 07:39:24,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:24,554 INFO L225 Difference]: With dead ends: 1074 [2021-11-20 07:39:24,554 INFO L226 Difference]: Without dead ends: 1074 [2021-11-20 07:39:24,554 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 [2021-11-20 07:39:24,555 INFO L933 BasicCegarLoop]: 931 mSDtfsCounter, 916 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 1919 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 [2021-11-20 07:39:24,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [924 Valid, 1919 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:39:24,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2021-11-20 07:39:24,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1072. [2021-11-20 07:39:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 667 states have (on average 1.8035982008995501) internal successors, (1203), 1066 states have internal predecessors, (1203), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1229 transitions. [2021-11-20 07:39:24,586 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1229 transitions. Word has length 20 [2021-11-20 07:39:24,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:24,587 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1229 transitions. [2021-11-20 07:39:24,587 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) [2021-11-20 07:39:24,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1229 transitions. [2021-11-20 07:39:24,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 07:39:24,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:24,589 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] [2021-11-20 07:39:24,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:24,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:24,802 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:24,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:24,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531686, now seen corresponding path program 1 times [2021-11-20 07:39:24,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:24,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294801622] [2021-11-20 07:39:24,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:24,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:24,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:24,805 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:24,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-20 07:39:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:25,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:39:25,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:25,051 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 [2021-11-20 07:39:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:25,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:25,382 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:25,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294801622] [2021-11-20 07:39:25,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294801622] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:25,383 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:25,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-20 07:39:25,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538317097] [2021-11-20 07:39:25,383 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:25,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:39:25,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:25,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:39:25,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:39:25,385 INFO L87 Difference]: Start difference. First operand 1072 states and 1229 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) [2021-11-20 07:39:27,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:27,823 INFO L93 Difference]: Finished difference Result 1525 states and 1766 transitions. [2021-11-20 07:39:27,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:39:27,824 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 [2021-11-20 07:39:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:27,830 INFO L225 Difference]: With dead ends: 1525 [2021-11-20 07:39:27,830 INFO L226 Difference]: Without dead ends: 1525 [2021-11-20 07:39:27,830 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 [2021-11-20 07:39:27,831 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 1467 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:27,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1467 Valid, 1062 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 07:39:27,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2021-11-20 07:39:27,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1068. [2021-11-20 07:39:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 667 states have (on average 1.7916041979010495) internal successors, (1195), 1062 states have internal predecessors, (1195), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1221 transitions. [2021-11-20 07:39:27,858 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1221 transitions. Word has length 34 [2021-11-20 07:39:27,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:27,859 INFO L470 AbstractCegarLoop]: Abstraction has 1068 states and 1221 transitions. [2021-11-20 07:39:27,859 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) [2021-11-20 07:39:27,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1221 transitions. [2021-11-20 07:39:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 07:39:27,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:27,861 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] [2021-11-20 07:39:27,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:28,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:28,072 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:28,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:28,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2117531687, now seen corresponding path program 1 times [2021-11-20 07:39:28,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:28,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551069860] [2021-11-20 07:39:28,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:28,074 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:28,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:28,075 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:28,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-20 07:39:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:28,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 07:39:28,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:28,243 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 [2021-11-20 07:39:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:28,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:29,043 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:29,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551069860] [2021-11-20 07:39:29,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551069860] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:29,043 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:29,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-20 07:39:29,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330839027] [2021-11-20 07:39:29,043 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:29,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:39:29,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:29,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:39:29,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:39:29,044 INFO L87 Difference]: Start difference. First operand 1068 states and 1221 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) [2021-11-20 07:39:36,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:36,831 INFO L93 Difference]: Finished difference Result 1579 states and 1783 transitions. [2021-11-20 07:39:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:39:36,832 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 [2021-11-20 07:39:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:36,839 INFO L225 Difference]: With dead ends: 1579 [2021-11-20 07:39:36,840 INFO L226 Difference]: Without dead ends: 1579 [2021-11-20 07:39:36,840 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 [2021-11-20 07:39:36,840 INFO L933 BasicCegarLoop]: 1168 mSDtfsCounter, 1944 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:36,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1944 Valid, 2136 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-11-20 07:39:36,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2021-11-20 07:39:36,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1064. [2021-11-20 07:39:36,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 667 states have (on average 1.7796101949025487) internal successors, (1187), 1058 states have internal predecessors, (1187), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:36,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1213 transitions. [2021-11-20 07:39:36,875 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1213 transitions. Word has length 34 [2021-11-20 07:39:36,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:36,876 INFO L470 AbstractCegarLoop]: Abstraction has 1064 states and 1213 transitions. [2021-11-20 07:39:36,876 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) [2021-11-20 07:39:36,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1213 transitions. [2021-11-20 07:39:36,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 07:39:36,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:36,878 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] [2021-11-20 07:39:36,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-20 07:39:37,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:37,090 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:37,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:37,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1509555205, now seen corresponding path program 1 times [2021-11-20 07:39:37,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:37,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264087242] [2021-11-20 07:39:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:37,091 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:37,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:37,092 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:37,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-20 07:39:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:37,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:39:37,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:37,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:37,538 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:37,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264087242] [2021-11-20 07:39:37,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264087242] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:37,538 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:37,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-20 07:39:37,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354011601] [2021-11-20 07:39:37,539 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:37,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:39:37,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:37,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:39:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:39:37,540 INFO L87 Difference]: Start difference. First operand 1064 states and 1213 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) [2021-11-20 07:39:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:37,607 INFO L93 Difference]: Finished difference Result 1052 states and 1193 transitions. [2021-11-20 07:39:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:39:37,608 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 [2021-11-20 07:39:37,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:37,615 INFO L225 Difference]: With dead ends: 1052 [2021-11-20 07:39:37,615 INFO L226 Difference]: Without dead ends: 1052 [2021-11-20 07:39:37,615 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 [2021-11-20 07:39:37,616 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 892 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:37,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [900 Valid, 1865 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:39:37,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-11-20 07:39:37,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2021-11-20 07:39:37,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 655 states have (on average 1.7816793893129772) internal successors, (1167), 1046 states have internal predecessors, (1167), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:37,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1193 transitions. [2021-11-20 07:39:37,640 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1193 transitions. Word has length 52 [2021-11-20 07:39:37,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:37,642 INFO L470 AbstractCegarLoop]: Abstraction has 1052 states and 1193 transitions. [2021-11-20 07:39:37,642 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) [2021-11-20 07:39:37,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1193 transitions. [2021-11-20 07:39:37,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-20 07:39:37,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:37,645 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] [2021-11-20 07:39:37,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:37,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:37,865 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:37,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:37,866 INFO L85 PathProgramCache]: Analyzing trace with hash -881686959, now seen corresponding path program 1 times [2021-11-20 07:39:37,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:37,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080358942] [2021-11-20 07:39:37,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:37,868 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:37,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:37,869 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:37,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-20 07:39:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:38,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 07:39:38,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:38,227 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 [2021-11-20 07:39:38,233 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 [2021-11-20 07:39:39,009 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 07:39:39,009 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 25 treesize of output 27 [2021-11-20 07:39:39,032 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 07:39:39,032 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 24 treesize of output 20 [2021-11-20 07:39:39,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:39,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:44,524 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:44,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080358942] [2021-11-20 07:39:44,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080358942] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:44,525 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:44,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-20 07:39:44,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904545573] [2021-11-20 07:39:44,526 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:44,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:39:44,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:44,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:39:44,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-20 07:39:44,527 INFO L87 Difference]: Start difference. First operand 1052 states and 1193 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) [2021-11-20 07:39:50,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:50,495 INFO L93 Difference]: Finished difference Result 1473 states and 1666 transitions. [2021-11-20 07:39:50,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:39:50,496 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 [2021-11-20 07:39:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:50,504 INFO L225 Difference]: With dead ends: 1473 [2021-11-20 07:39:50,505 INFO L226 Difference]: Without dead ends: 1473 [2021-11-20 07:39:50,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-20 07:39:50,506 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 1062 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 904 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:50,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 1769 Invalid, 2172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1213 Invalid, 0 Unknown, 904 Unchecked, 5.9s Time] [2021-11-20 07:39:50,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2021-11-20 07:39:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1030. [2021-11-20 07:39:50,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 665 states have (on average 1.7338345864661655) internal successors, (1153), 1024 states have internal predecessors, (1153), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:50,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1179 transitions. [2021-11-20 07:39:50,553 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1179 transitions. Word has length 60 [2021-11-20 07:39:50,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:50,553 INFO L470 AbstractCegarLoop]: Abstraction has 1030 states and 1179 transitions. [2021-11-20 07:39:50,554 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) [2021-11-20 07:39:50,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1179 transitions. [2021-11-20 07:39:50,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 07:39:50,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:50,557 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] [2021-11-20 07:39:50,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:50,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:50,772 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:50,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:50,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1192602638, now seen corresponding path program 1 times [2021-11-20 07:39:50,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:50,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201462824] [2021-11-20 07:39:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:50,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:50,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:50,776 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:50,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-20 07:39:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:51,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:39:51,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:51,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:51,513 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 [2021-11-20 07:39:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:52,009 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:52,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201462824] [2021-11-20 07:39:52,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201462824] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:52,009 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:52,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-20 07:39:52,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62980959] [2021-11-20 07:39:52,010 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:52,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:39:52,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:52,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:39:52,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:39:52,012 INFO L87 Difference]: Start difference. First operand 1030 states and 1179 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) [2021-11-20 07:39:54,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:54,483 INFO L93 Difference]: Finished difference Result 1028 states and 1177 transitions. [2021-11-20 07:39:54,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:39:54,484 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 [2021-11-20 07:39:54,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:54,489 INFO L225 Difference]: With dead ends: 1028 [2021-11-20 07:39:54,489 INFO L226 Difference]: Without dead ends: 1028 [2021-11-20 07:39:54,489 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 [2021-11-20 07:39:54,490 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 673 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:54,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [681 Valid, 942 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 07:39:54,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2021-11-20 07:39:54,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2021-11-20 07:39:54,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 665 states have (on average 1.7308270676691728) internal successors, (1151), 1022 states have internal predecessors, (1151), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1177 transitions. [2021-11-20 07:39:54,512 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1177 transitions. Word has length 62 [2021-11-20 07:39:54,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:54,513 INFO L470 AbstractCegarLoop]: Abstraction has 1028 states and 1177 transitions. [2021-11-20 07:39:54,513 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) [2021-11-20 07:39:54,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1177 transitions. [2021-11-20 07:39:54,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 07:39:54,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:54,514 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] [2021-11-20 07:39:54,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-20 07:39:54,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:54,728 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:54,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash -855470841, now seen corresponding path program 1 times [2021-11-20 07:39:54,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:54,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222915613] [2021-11-20 07:39:54,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:54,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:54,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:54,732 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:54,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-20 07:39:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:55,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:39:55,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:55,127 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 [2021-11-20 07:39:55,144 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 [2021-11-20 07:39:55,194 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 [2021-11-20 07:39:55,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:55,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:55,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:55,338 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:55,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222915613] [2021-11-20 07:39:55,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222915613] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:55,338 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:55,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-20 07:39:55,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490620803] [2021-11-20 07:39:55,339 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:55,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:39:55,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:55,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:39:55,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:39:55,340 INFO L87 Difference]: Start difference. First operand 1028 states and 1177 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:58,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:39:58,585 INFO L93 Difference]: Finished difference Result 1027 states and 1176 transitions. [2021-11-20 07:39:58,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:39:58,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-11-20 07:39:58,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:39:58,591 INFO L225 Difference]: With dead ends: 1027 [2021-11-20 07:39:58,591 INFO L226 Difference]: Without dead ends: 1027 [2021-11-20 07:39:58,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:39:58,592 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 4 mSDsluCounter, 1425 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:39:58,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2314 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-20 07:39:58,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2021-11-20 07:39:58,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2021-11-20 07:39:58,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 665 states have (on average 1.7293233082706767) internal successors, (1150), 1021 states have internal predecessors, (1150), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:39:58,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1176 transitions. [2021-11-20 07:39:58,615 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1176 transitions. Word has length 65 [2021-11-20 07:39:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:39:58,615 INFO L470 AbstractCegarLoop]: Abstraction has 1027 states and 1176 transitions. [2021-11-20 07:39:58,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:39:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1176 transitions. [2021-11-20 07:39:58,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 07:39:58,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:39:58,617 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] [2021-11-20 07:39:58,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-20 07:39:58,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:39:58,831 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:39:58,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:39:58,831 INFO L85 PathProgramCache]: Analyzing trace with hash -855470840, now seen corresponding path program 1 times [2021-11-20 07:39:58,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:39:58,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846914539] [2021-11-20 07:39:58,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:39:58,832 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:39:58,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:39:58,834 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:39:58,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-20 07:39:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:39:59,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:39:59,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:39:59,195 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 [2021-11-20 07:39:59,223 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 [2021-11-20 07:39:59,232 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 [2021-11-20 07:39:59,301 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 [2021-11-20 07:39:59,305 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 [2021-11-20 07:39:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:59,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:39:59,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:39:59,688 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:39:59,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846914539] [2021-11-20 07:39:59,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846914539] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:39:59,688 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:39:59,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-20 07:39:59,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307435378] [2021-11-20 07:39:59,688 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:39:59,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 07:39:59,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:39:59,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 07:39:59,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:39:59,690 INFO L87 Difference]: Start difference. First operand 1027 states and 1176 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:40:09,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:09,330 INFO L93 Difference]: Finished difference Result 1026 states and 1175 transitions. [2021-11-20 07:40:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:40:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-20 07:40:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:09,337 INFO L225 Difference]: With dead ends: 1026 [2021-11-20 07:40:09,337 INFO L226 Difference]: Without dead ends: 1026 [2021-11-20 07:40:09,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:40:09,338 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 3 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:09,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 2824 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2021-11-20 07:40:09,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2021-11-20 07:40:09,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1026. [2021-11-20 07:40:09,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 664 states have (on average 1.730421686746988) internal successors, (1149), 1020 states have internal predecessors, (1149), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 07:40:09,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1175 transitions. [2021-11-20 07:40:09,359 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1175 transitions. Word has length 65 [2021-11-20 07:40:09,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:09,360 INFO L470 AbstractCegarLoop]: Abstraction has 1026 states and 1175 transitions. [2021-11-20 07:40:09,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:40:09,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1175 transitions. [2021-11-20 07:40:09,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 07:40:09,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:09,362 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, 1, 1] [2021-11-20 07:40:09,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-20 07:40:09,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:40:09,581 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:40:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash 864578415, now seen corresponding path program 1 times [2021-11-20 07:40:09,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:40:09,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262674654] [2021-11-20 07:40:09,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:40:09,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:40:09,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:40:09,584 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:40:09,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-20 07:40:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:09,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:40:09,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:40:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:10,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:40:10,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:10,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:40:10,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262674654] [2021-11-20 07:40:10,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262674654] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:40:10,274 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:40:10,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 07:40:10,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535912152] [2021-11-20 07:40:10,275 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:40:10,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:40:10,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:40:10,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:40:10,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:40:10,277 INFO L87 Difference]: Start difference. First operand 1026 states and 1175 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:10,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:10,386 INFO L93 Difference]: Finished difference Result 1036 states and 1188 transitions. [2021-11-20 07:40:10,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:40:10,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 73 [2021-11-20 07:40:10,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:10,396 INFO L225 Difference]: With dead ends: 1036 [2021-11-20 07:40:10,397 INFO L226 Difference]: Without dead ends: 1036 [2021-11-20 07:40:10,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-20 07:40:10,398 INFO L933 BasicCegarLoop]: 889 mSDtfsCounter, 11 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:10,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 1778 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:40:10,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-11-20 07:40:10,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1036. [2021-11-20 07:40:10,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 672 states have (on average 1.7276785714285714) internal successors, (1161), 1029 states have internal predecessors, (1161), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-20 07:40:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1188 transitions. [2021-11-20 07:40:10,433 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1188 transitions. Word has length 73 [2021-11-20 07:40:10,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:10,434 INFO L470 AbstractCegarLoop]: Abstraction has 1036 states and 1188 transitions. [2021-11-20 07:40:10,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1188 transitions. [2021-11-20 07:40:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-20 07:40:10,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:10,436 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, 1, 1] [2021-11-20 07:40:10,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-20 07:40:10,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:40:10,658 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:40:10,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:10,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1645234929, now seen corresponding path program 1 times [2021-11-20 07:40:10,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:40:10,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562204115] [2021-11-20 07:40:10,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:40:10,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:40:10,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:40:10,661 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:40:10,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-20 07:40:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:40:10,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 07:40:10,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:40:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:11,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:40:11,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:11,437 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:40:11,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562204115] [2021-11-20 07:40:11,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562204115] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:40:11,437 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:40:11,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-20 07:40:11,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575747050] [2021-11-20 07:40:11,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 07:40:11,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:40:11,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:40:11,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:40:11,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:40:11,439 INFO L87 Difference]: Start difference. First operand 1036 states and 1188 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:11,947 INFO L93 Difference]: Finished difference Result 1050 states and 1206 transitions. [2021-11-20 07:40:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:40:11,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2021-11-20 07:40:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:11,955 INFO L225 Difference]: With dead ends: 1050 [2021-11-20 07:40:11,955 INFO L226 Difference]: Without dead ends: 1046 [2021-11-20 07:40:11,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2021-11-20 07:40:11,956 INFO L933 BasicCegarLoop]: 891 mSDtfsCounter, 29 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:11,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 3555 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:40:11,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-11-20 07:40:11,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1042. [2021-11-20 07:40:11,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 678 states have (on average 1.724188790560472) internal successors, (1169), 1035 states have internal predecessors, (1169), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-20 07:40:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1196 transitions. [2021-11-20 07:40:11,980 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1196 transitions. Word has length 75 [2021-11-20 07:40:11,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:11,981 INFO L470 AbstractCegarLoop]: Abstraction has 1042 states and 1196 transitions. [2021-11-20 07:40:11,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:11,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1196 transitions. [2021-11-20 07:40:11,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-20 07:40:11,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:11,982 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, 1, 1] [2021-11-20 07:40:11,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-20 07:40:12,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:40:12,197 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:40:12,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:12,197 INFO L85 PathProgramCache]: Analyzing trace with hash -132870065, now seen corresponding path program 2 times [2021-11-20 07:40:12,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:40:12,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978466235] [2021-11-20 07:40:12,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:40:12,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:40:12,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:40:12,199 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:40:12,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-20 07:40:12,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:40:12,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:40:12,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 07:40:12,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:40:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:12,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:40:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:13,390 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:40:13,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978466235] [2021-11-20 07:40:13,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978466235] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:40:13,390 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:40:13,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-20 07:40:13,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198105581] [2021-11-20 07:40:13,391 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 07:40:13,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 07:40:13,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:40:13,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 07:40:13,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-20 07:40:13,393 INFO L87 Difference]: Start difference. First operand 1042 states and 1196 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:15,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:15,141 INFO L93 Difference]: Finished difference Result 1070 states and 1234 transitions. [2021-11-20 07:40:15,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-20 07:40:15,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 79 [2021-11-20 07:40:15,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:15,151 INFO L225 Difference]: With dead ends: 1070 [2021-11-20 07:40:15,151 INFO L226 Difference]: Without dead ends: 1066 [2021-11-20 07:40:15,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=457, Invalid=949, Unknown=0, NotChecked=0, Total=1406 [2021-11-20 07:40:15,153 INFO L933 BasicCegarLoop]: 895 mSDtfsCounter, 62 mSDsluCounter, 8892 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 9787 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:15,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 9787 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 07:40:15,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2021-11-20 07:40:15,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1054. [2021-11-20 07:40:15,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 690 states have (on average 1.7173913043478262) internal successors, (1185), 1047 states have internal predecessors, (1185), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-20 07:40:15,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1212 transitions. [2021-11-20 07:40:15,181 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1212 transitions. Word has length 79 [2021-11-20 07:40:15,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:15,182 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1212 transitions. [2021-11-20 07:40:15,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1212 transitions. [2021-11-20 07:40:15,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-20 07:40:15,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:15,184 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, 1, 1] [2021-11-20 07:40:15,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-20 07:40:15,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:40:15,420 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:40:15,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:15,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1141860047, now seen corresponding path program 3 times [2021-11-20 07:40:15,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:40:15,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227235432] [2021-11-20 07:40:15,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 07:40:15,422 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:40:15,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:40:15,423 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:40:15,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-20 07:40:16,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-20 07:40:16,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:40:16,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-20 07:40:16,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:40:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:16,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:40:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:19,079 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:40:19,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227235432] [2021-11-20 07:40:19,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227235432] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:40:19,080 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:40:19,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-20 07:40:19,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684791611] [2021-11-20 07:40:19,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 07:40:19,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-20 07:40:19,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:40:19,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-20 07:40:19,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 07:40:19,083 INFO L87 Difference]: Start difference. First operand 1054 states and 1212 transitions. Second operand has 34 states, 34 states have (on average 3.0) internal successors, (102), 34 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:28,953 INFO L93 Difference]: Finished difference Result 1110 states and 1296 transitions. [2021-11-20 07:40:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-20 07:40:28,956 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 34 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2021-11-20 07:40:28,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:28,966 INFO L225 Difference]: With dead ends: 1110 [2021-11-20 07:40:28,966 INFO L226 Difference]: Without dead ends: 1104 [2021-11-20 07:40:28,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=1377, Invalid=2783, Unknown=0, NotChecked=0, Total=4160 [2021-11-20 07:40:28,971 INFO L933 BasicCegarLoop]: 902 mSDtfsCounter, 204 mSDsluCounter, 13471 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 14373 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:28,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 14373 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-20 07:40:28,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2021-11-20 07:40:29,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1078. [2021-11-20 07:40:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 714 states have (on average 1.7030812324929971) internal successors, (1216), 1071 states have internal predecessors, (1216), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-20 07:40:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1243 transitions. [2021-11-20 07:40:29,011 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1243 transitions. Word has length 87 [2021-11-20 07:40:29,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:29,012 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 1243 transitions. [2021-11-20 07:40:29,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 34 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:29,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1243 transitions. [2021-11-20 07:40:29,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 07:40:29,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:29,015 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, 1, 1] [2021-11-20 07:40:29,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-20 07:40:29,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:40:29,229 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:40:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:29,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1182166065, now seen corresponding path program 4 times [2021-11-20 07:40:29,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:40:29,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293552795] [2021-11-20 07:40:29,231 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 07:40:29,231 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:40:29,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:40:29,233 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:40:29,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-20 07:40:29,575 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 07:40:29,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:40:29,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-20 07:40:29,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:40:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:31,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:40:35,653 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:40:35,653 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:40:35,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293552795] [2021-11-20 07:40:35,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293552795] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:40:35,653 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:40:35,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-20 07:40:35,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309587744] [2021-11-20 07:40:35,654 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 07:40:35,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-20 07:40:35,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:40:35,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-20 07:40:35,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290 [2021-11-20 07:40:35,657 INFO L87 Difference]: Start difference. First operand 1078 states and 1243 transitions. Second operand has 66 states, 66 states have (on average 2.0303030303030303) internal successors, (134), 66 states have internal predecessors, (134), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:40:51,954 INFO L93 Difference]: Finished difference Result 1170 states and 1363 transitions. [2021-11-20 07:40:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-20 07:40:51,955 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0303030303030303) internal successors, (134), 66 states have internal predecessors, (134), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 103 [2021-11-20 07:40:51,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:40:51,962 INFO L225 Difference]: With dead ends: 1170 [2021-11-20 07:40:51,962 INFO L226 Difference]: Without dead ends: 1166 [2021-11-20 07:40:51,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2313 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=4503, Invalid=14679, Unknown=0, NotChecked=0, Total=19182 [2021-11-20 07:40:51,971 INFO L933 BasicCegarLoop]: 918 mSDtfsCounter, 318 mSDsluCounter, 30106 mSDsCounter, 0 mSdLazyCounter, 4076 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 31024 SdHoareTripleChecker+Invalid, 4565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 4076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:40:51,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 31024 Invalid, 4565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [489 Valid, 4076 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2021-11-20 07:40:51,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2021-11-20 07:40:51,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1108. [2021-11-20 07:40:52,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 744 states have (on average 1.696236559139785) internal successors, (1262), 1101 states have internal predecessors, (1262), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2021-11-20 07:40:52,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1289 transitions. [2021-11-20 07:40:52,003 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1289 transitions. Word has length 103 [2021-11-20 07:40:52,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:40:52,004 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 1289 transitions. [2021-11-20 07:40:52,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0303030303030303) internal successors, (134), 66 states have internal predecessors, (134), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 07:40:52,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1289 transitions. [2021-11-20 07:40:52,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-20 07:40:52,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:40:52,006 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, 1, 1] [2021-11-20 07:40:52,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-20 07:40:52,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:40:52,234 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 532 more)] === [2021-11-20 07:40:52,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:40:52,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1355651281, now seen corresponding path program 5 times [2021-11-20 07:40:52,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:40:52,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320645352] [2021-11-20 07:40:52,235 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 07:40:52,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:40:52,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:40:52,236 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:40:52,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4268ee87-d912-4e6d-8279-b74c9fb6eada/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-20 07:40:53,419 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-11-20 07:40:53,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:40:53,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 103 conjunts are in the unsatisfiable core [2021-11-20 07:40:53,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:40:53,488 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 [2021-11-20 07:40:53,771 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 07:40:53,771 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 13 treesize of output 13 [2021-11-20 07:40:53,781 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 [2021-11-20 07:40:53,827 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 [2021-11-20 07:40:53,838 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 [2021-11-20 07:40:53,990 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 31 treesize of output 19 [2021-11-20 07:40:53,996 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 19 treesize of output 13 [2021-11-20 07:47:50,933 WARN L227 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:49:03,036 WARN L227 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:50:29,106 WARN L227 SmtUtils]: Spent 7.98s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:50:39,189 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_#Ultimate.C_memset_#t~loopctr237_184| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_195| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_183| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_194| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_186| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_185| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_188| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_187| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_189| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_191| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_190| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_182| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_193| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_181| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_192| (_ BitVec 32))) (let ((.cse0 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_181|)) (.cse1 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_182|)) (.cse2 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_183|)) (.cse3 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_184|)) (.cse4 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_185|)) (.cse5 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_186|)) (.cse6 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_187|)) (.cse7 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_188|)) (.cse8 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_189|)) (.cse9 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_190|)) (.cse10 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_191|)) (.cse11 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_192|)) (.cse12 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_193|)) (.cse13 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_194|)) (.cse14 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_195|))) (and (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse1 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32)) .cse9 (_ bv0 32)) .cse10 (_ bv0 32)) .cse11 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32))) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse15 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse15) .cse1 .cse15) .cse2 .cse15) .cse3 .cse15) .cse4 .cse15) .cse5 .cse15) .cse6 .cse15) .cse7 .cse15) .cse8 .cse15) .cse9 .cse15) .cse10 .cse15) .cse11 .cse15) .cse12 .cse15) .cse13 .cse15) .cse14 .cse15))))))) (exists ((v_arrayElimCell_14 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_14) (_ bv44 32)))) is different from false [2021-11-20 07:52:06,633 WARN L227 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 89 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:52:16,711 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_14 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_14) (_ bv44 32))) (exists ((|v_#Ultimate.C_memset_#t~loopctr237_184| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_195| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_183| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_194| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_186| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_197| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_185| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_196| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_188| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_187| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_189| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_191| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_190| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_182| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_193| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_181| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_192| (_ BitVec 32))) (let ((.cse0 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_181|)) (.cse2 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_182|)) (.cse3 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_183|)) (.cse4 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_184|)) (.cse5 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_185|)) (.cse6 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_186|)) (.cse7 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_187|)) (.cse8 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_188|)) (.cse9 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_189|)) (.cse10 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_190|)) (.cse11 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_191|)) (.cse12 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_192|)) (.cse13 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_193|)) (.cse14 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_194|)) (.cse15 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_195|)) (.cse16 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_196|)) (.cse17 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_197|))) (and (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse1) .cse2 .cse1) .cse3 .cse1) .cse4 .cse1) .cse5 .cse1) .cse6 .cse1) .cse7 .cse1) .cse8 .cse1) .cse9 .cse1) .cse10 .cse1) .cse11 .cse1) .cse12 .cse1) .cse13 .cse1) .cse14 .cse1) .cse15 .cse1) .cse16 .cse1) .cse17 .cse1))) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32)) .cse9 (_ bv0 32)) .cse10 (_ bv0 32)) .cse11 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32))) |c_#memory_$Pointer$.base|))))) is different from false [2021-11-20 07:52:26,816 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_#Ultimate.C_memset_#t~loopctr237_184| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_195| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_183| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_194| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_186| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_197| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_185| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_196| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_188| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_187| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_198| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_189| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_191| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_190| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_182| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_193| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_181| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr237_192| (_ BitVec 32))) (let ((.cse0 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_181|)) (.cse1 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_182|)) (.cse2 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_183|)) (.cse3 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_184|)) (.cse4 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_185|)) (.cse5 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_186|)) (.cse6 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_187|)) (.cse7 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_188|)) (.cse8 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_189|)) (.cse9 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_190|)) (.cse10 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_191|)) (.cse11 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_192|)) (.cse12 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_193|)) (.cse13 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_194|)) (.cse14 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_195|)) (.cse15 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_196|)) (.cse16 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_197|)) (.cse17 (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr237_198|))) (and (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (_ bv0 32)) .cse1 (_ bv0 32)) .cse2 (_ bv0 32)) .cse3 (_ bv0 32)) .cse4 (_ bv0 32)) .cse5 (_ bv0 32)) .cse6 (_ bv0 32)) .cse7 (_ bv0 32)) .cse8 (_ bv0 32)) .cse9 (_ bv0 32)) .cse10 (_ bv0 32)) .cse11 (_ bv0 32)) .cse12 (_ bv0 32)) .cse13 (_ bv0 32)) .cse14 (_ bv0 32)) .cse15 (_ bv0 32)) .cse16 (_ bv0 32)) .cse17 (_ bv0 32))) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (let ((.cse18 ((_ zero_extend 24) ((_ extract 7 0) |c_#Ultimate.C_memset_#value|)))) (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 .cse18) .cse1 .cse18) .cse2 .cse18) .cse3 .cse18) .cse4 .cse18) .cse5 .cse18) .cse6 .cse18) .cse7 .cse18) .cse8 .cse18) .cse9 .cse18) .cse10 .cse18) .cse11 .cse18) .cse12 .cse18) .cse13 .cse18) .cse14 .cse18) .cse15 .cse18) .cse16 .cse18) .cse17 .cse18))) |c_#memory_$Pointer$.offset|)))) (exists ((v_arrayElimCell_14 (_ BitVec 32))) (= (select |c_#length| v_arrayElimCell_14) (_ bv44 32)))) is different from false