./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y --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 df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:49:31,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:49:31,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:49:31,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:49:31,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:49:31,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:49:31,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:49:31,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:49:31,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:49:31,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:49:31,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:49:31,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:49:31,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:49:31,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:49:31,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:49:31,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:49:31,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:49:31,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:49:31,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:49:31,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:49:31,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:49:31,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:49:31,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:49:31,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:49:31,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:49:31,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:49:31,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:49:31,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:49:31,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:49:31,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:49:31,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:49:31,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:49:31,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:49:31,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:49:31,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:49:31,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:49:31,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:49:31,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:49:31,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:49:31,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:49:31,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:49:31,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-13 17:49:31,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:49:31,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:49:31,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:49:31,739 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:49:31,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:49:31,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:49:31,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:49:31,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:49:31,742 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:49:31,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:49:31,744 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:49:31,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:49:31,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:49:31,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:49:31,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:49:31,745 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 17:49:31,745 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 17:49:31,745 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 17:49:31,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:49:31,746 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 17:49:31,746 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:49:31,746 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:49:31,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:49:31,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:49:31,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:49:31,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:49:31,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:49:31,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:49:31,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:49:31,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:49:31,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:49:31,750 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_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c [2021-11-13 17:49:32,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:49:32,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:49:32,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:49:32,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:49:32,146 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:49:32,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2021-11-13 17:49:32,250 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data/d71adaf53/0e0999e1d4954aafaa5b9fe5082b4294/FLAG3ca48d382 [2021-11-13 17:49:32,976 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:49:32,978 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2021-11-13 17:49:33,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data/d71adaf53/0e0999e1d4954aafaa5b9fe5082b4294/FLAG3ca48d382 [2021-11-13 17:49:33,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data/d71adaf53/0e0999e1d4954aafaa5b9fe5082b4294 [2021-11-13 17:49:33,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:49:33,184 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 17:49:33,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:49:33,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:49:33,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:49:33,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:49:33" (1/1) ... [2021-11-13 17:49:33,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c90398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:33, skipping insertion in model container [2021-11-13 17:49:33,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:49:33" (1/1) ... [2021-11-13 17:49:33,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:49:33,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:49:34,022 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[33021,33034] [2021-11-13 17:49:34,281 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[49681,49694] [2021-11-13 17:49:34,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:49:34,305 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) [2021-11-13 17:49:34,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e7fe73c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:34, skipping insertion in model container [2021-11-13 17:49:34,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:49:34,307 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-13 17:49:34,310 INFO L158 Benchmark]: Toolchain (without parser) took 1125.17ms. Allocated memory is still 107.0MB. Free memory was 71.9MB in the beginning and 69.1MB in the end (delta: 2.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:49:34,311 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 107.0MB. Free memory was 61.1MB in the beginning and 61.1MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:49:34,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1121.02ms. Allocated memory is still 107.0MB. Free memory was 71.7MB in the beginning and 69.1MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:49:34,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 107.0MB. Free memory was 61.1MB in the beginning and 61.1MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1121.02ms. Allocated memory is still 107.0MB. Free memory was 71.7MB in the beginning and 69.1MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y --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 df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:49:37,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:49:37,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:49:37,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:49:37,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:49:37,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:49:37,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:49:37,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:49:37,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:49:37,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:49:37,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:49:37,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:49:37,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:49:37,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:49:37,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:49:37,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:49:37,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:49:37,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:49:37,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:49:37,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:49:37,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:49:37,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:49:37,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:49:37,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:49:37,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:49:37,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:49:37,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:49:37,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:49:37,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:49:37,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:49:37,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:49:37,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:49:37,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:49:37,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:49:37,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:49:37,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:49:37,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:49:37,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:49:37,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:49:37,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:49:37,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:49:37,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-13 17:49:37,432 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:49:37,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:49:37,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:49:37,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:49:37,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:49:37,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:49:37,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:49:37,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:49:37,437 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:49:37,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:49:37,439 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:49:37,439 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:49:37,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:49:37,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:49:37,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:49:37,440 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 17:49:37,440 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 17:49:37,441 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 17:49:37,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:49:37,441 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 17:49:37,441 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 17:49:37,442 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 17:49:37,442 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:49:37,442 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:49:37,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:49:37,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:49:37,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:49:37,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:49:37,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:49:37,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:49:37,444 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 17:49:37,444 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 17:49:37,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:49:37,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 17:49:37,445 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_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c [2021-11-13 17:49:37,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:49:37,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:49:37,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:49:37,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:49:37,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:49:37,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2021-11-13 17:49:38,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data/ff04df908/326b25f1a6e74ef5b47cd123e88ab771/FLAG3aa8b0a08 [2021-11-13 17:49:39,012 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:49:39,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2021-11-13 17:49:39,034 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data/ff04df908/326b25f1a6e74ef5b47cd123e88ab771/FLAG3aa8b0a08 [2021-11-13 17:49:39,134 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/data/ff04df908/326b25f1a6e74ef5b47cd123e88ab771 [2021-11-13 17:49:39,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:49:39,142 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 17:49:39,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:49:39,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:49:39,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:49:39,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:49:39" (1/1) ... [2021-11-13 17:49:39,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395b783b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:39, skipping insertion in model container [2021-11-13 17:49:39,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:49:39" (1/1) ... [2021-11-13 17:49:39,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:49:39,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:49:39,798 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[33021,33034] [2021-11-13 17:49:40,009 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[49681,49694] [2021-11-13 17:49:40,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:49:40,039 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 17:49:40,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:49:40,117 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[33021,33034] [2021-11-13 17:49:40,320 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[49681,49694] [2021-11-13 17:49:40,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:49:40,359 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:49:40,417 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[33021,33034] [2021-11-13 17:49:40,558 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[49681,49694] [2021-11-13 17:49:40,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:49:40,609 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:49:40,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40 WrapperNode [2021-11-13 17:49:40,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:49:40,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:49:40,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:49:40,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:49:40,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40" (1/1) ... [2021-11-13 17:49:40,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40" (1/1) ... [2021-11-13 17:49:40,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40" (1/1) ... [2021-11-13 17:49:40,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40" (1/1) ... [2021-11-13 17:49:40,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40" (1/1) ... [2021-11-13 17:49:40,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40" (1/1) ... [2021-11-13 17:49:40,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40" (1/1) ... [2021-11-13 17:49:40,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:49:40,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:49:40,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:49:40,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:49:40,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40" (1/1) ... [2021-11-13 17:49:40,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:49:40,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:49:40,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:49:41,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:49:41,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-13 17:49:41,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:49:41,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 17:49:41,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-13 17:49:41,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-13 17:49:41,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-13 17:49:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-13 17:49:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-13 17:49:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-11-13 17:49:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 17:49:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-13 17:49:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-13 17:49:41,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 17:49:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-13 17:49:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2021-11-13 17:49:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2021-11-13 17:49:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-13 17:49:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 17:49:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-13 17:49:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-11-13 17:49:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-13 17:49:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-13 17:49:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2021-11-13 17:49:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-11-13 17:49:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-13 17:49:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2021-11-13 17:49:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2021-11-13 17:49:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2021-11-13 17:49:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2021-11-13 17:49:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2021-11-13 17:49:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2021-11-13 17:49:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-11-13 17:49:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-13 17:49:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-11-13 17:49:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2021-11-13 17:49:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2021-11-13 17:49:41,065 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-13 17:49:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2021-11-13 17:49:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2021-11-13 17:49:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2021-11-13 17:49:41,066 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-11-13 17:49:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-11-13 17:49:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2021-11-13 17:49:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2021-11-13 17:49:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2021-11-13 17:49:41,067 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2021-11-13 17:49:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2021-11-13 17:49:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2021-11-13 17:49:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure index [2021-11-13 17:49:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2021-11-13 17:49:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-11-13 17:49:41,068 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2021-11-13 17:49:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2021-11-13 17:49:41,069 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-13 17:49:41,071 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2021-11-13 17:49:41,071 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2021-11-13 17:49:41,071 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2021-11-13 17:49:41,071 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2021-11-13 17:49:41,072 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-13 17:49:41,072 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2021-11-13 17:49:41,072 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2021-11-13 17:49:41,073 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2021-11-13 17:49:41,073 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2021-11-13 17:49:41,073 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2021-11-13 17:49:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-13 17:49:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-13 17:49:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-13 17:49:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-13 17:49:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-13 17:49:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-13 17:49:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-13 17:49:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-13 17:49:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-13 17:49:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-13 17:49:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-13 17:49:41,076 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-13 17:49:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-13 17:49:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-13 17:49:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-13 17:49:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-13 17:49:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-13 17:49:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-13 17:49:41,077 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-13 17:49:41,078 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-13 17:49:41,078 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-13 17:49:41,078 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-13 17:49:41,078 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-13 17:49:41,078 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-13 17:49:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-13 17:49:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-13 17:49:41,079 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-13 17:49:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-13 17:49:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-13 17:49:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-13 17:49:41,080 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-13 17:49:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-13 17:49:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-13 17:49:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-13 17:49:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-13 17:49:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-13 17:49:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-13 17:49:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-13 17:49:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-13 17:49:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-13 17:49:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-13 17:49:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-13 17:49:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-13 17:49:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-13 17:49:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-13 17:49:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-13 17:49:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-13 17:49:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-13 17:49:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-13 17:49:41,085 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-13 17:49:41,086 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-13 17:49:41,087 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-13 17:49:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-13 17:49:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-13 17:49:41,090 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-13 17:49:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-13 17:49:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-13 17:49:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-13 17:49:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-13 17:49:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-13 17:49:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-13 17:49:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-13 17:49:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-13 17:49:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-13 17:49:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-13 17:49:41,101 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-13 17:49:41,102 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-13 17:49:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-13 17:49:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-13 17:49:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-13 17:49:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-13 17:49:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-13 17:49:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-13 17:49:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-13 17:49:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-13 17:49:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-13 17:49:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-13 17:49:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-13 17:49:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-13 17:49:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-13 17:49:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-13 17:49:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-13 17:49:41,105 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-13 17:49:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-13 17:49:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-13 17:49:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-13 17:49:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-13 17:49:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-13 17:49:41,106 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-13 17:49:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-13 17:49:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-13 17:49:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-13 17:49:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-13 17:49:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-13 17:49:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-13 17:49:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-13 17:49:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-13 17:49:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-13 17:49:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-13 17:49:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-13 17:49:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-13 17:49:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-13 17:49:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-13 17:49:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-13 17:49:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-13 17:49:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-13 17:49:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-13 17:49:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-11-13 17:49:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-11-13 17:49:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-11-13 17:49:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-11-13 17:49:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:49:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 17:49:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-13 17:49:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-13 17:49:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:49:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 17:49:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 17:49:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:49:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:49:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 17:49:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:49:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 17:49:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-13 17:49:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 17:49:41,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:49:41,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 17:49:41,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 17:49:41,887 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-13 17:49:49,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:49:49,304 INFO L299 CfgBuilder]: Removed 83 assume(true) statements. [2021-11-13 17:49:49,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:49:49 BoogieIcfgContainer [2021-11-13 17:49:49,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:49:49,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:49:49,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:49:49,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:49:49,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:49:39" (1/3) ... [2021-11-13 17:49:49,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286764bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:49:49, skipping insertion in model container [2021-11-13 17:49:49,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:49:40" (2/3) ... [2021-11-13 17:49:49,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286764bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:49:49, skipping insertion in model container [2021-11-13 17:49:49,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:49:49" (3/3) ... [2021-11-13 17:49:49,324 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-1.i [2021-11-13 17:49:49,331 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:49:49,332 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 729 error locations. [2021-11-13 17:49:49,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:49:49,420 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 [2021-11-13 17:49:49,420 INFO L340 AbstractCegarLoop]: Starting to check reachability of 729 error locations. [2021-11-13 17:49:49,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 1464 states, 721 states have (on average 2.234396671289875) internal successors, (1611), 1449 states have internal predecessors, (1611), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-13 17:49:49,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 17:49:49,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:49:49,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:49,486 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:49:49,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:49,493 INFO L85 PathProgramCache]: Analyzing trace with hash 477995229, now seen corresponding path program 1 times [2021-11-13 17:49:49,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:49:49,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393516364] [2021-11-13 17:49:49,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:49,508 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:49:49,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:49:49,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:49:49,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 17:49:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:49,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 17:49:49,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:49,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:49:49,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:49,969 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:49:49,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393516364] [2021-11-13 17:49:49,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393516364] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:49,970 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:49,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 17:49:49,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686197734] [2021-11-13 17:49:49,973 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:49,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:49:49,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:49:50,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:49:50,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:49:50,076 INFO L87 Difference]: Start difference. First operand has 1464 states, 721 states have (on average 2.234396671289875) internal successors, (1611), 1449 states have internal predecessors, (1611), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:49:50,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:50,196 INFO L93 Difference]: Finished difference Result 1446 states and 1529 transitions. [2021-11-13 17:49:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:49:50,199 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-11-13 17:49:50,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:49:50,234 INFO L225 Difference]: With dead ends: 1446 [2021-11-13 17:49:50,234 INFO L226 Difference]: Without dead ends: 1443 [2021-11-13 17:49:50,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:49:50,241 INFO L933 BasicCegarLoop]: 1529 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:49:50,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 15.33ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:49:50,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2021-11-13 17:49:50,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2021-11-13 17:49:50,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 712 states have (on average 2.105337078651685) internal successors, (1499), 1429 states have internal predecessors, (1499), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:49:50,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1526 transitions. [2021-11-13 17:49:50,419 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1526 transitions. Word has length 9 [2021-11-13 17:49:50,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:49:50,419 INFO L470 AbstractCegarLoop]: Abstraction has 1443 states and 1526 transitions. [2021-11-13 17:49:50,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:49:50,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1526 transitions. [2021-11-13 17:49:50,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 17:49:50,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:49:50,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:50,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-13 17:49:50,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:49:50,622 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:49:50,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:50,627 INFO L85 PathProgramCache]: Analyzing trace with hash 477995291, now seen corresponding path program 1 times [2021-11-13 17:49:50,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:49:50,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389452414] [2021-11-13 17:49:50,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:50,629 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:49:50,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:49:50,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:49:50,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 17:49:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:50,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:49:50,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:51,020 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 [2021-11-13 17:49:51,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:51,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:49:51,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:51,107 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:49:51,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389452414] [2021-11-13 17:49:51,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389452414] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:51,109 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:51,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 17:49:51,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520969330] [2021-11-13 17:49:51,112 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:51,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:49:51,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:49:51,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:49:51,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:49:51,119 INFO L87 Difference]: Start difference. First operand 1443 states and 1526 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:49:54,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:49:54,824 INFO L93 Difference]: Finished difference Result 1688 states and 1805 transitions. [2021-11-13 17:49:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:49:54,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-11-13 17:49:54,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:49:54,837 INFO L225 Difference]: With dead ends: 1688 [2021-11-13 17:49:54,837 INFO L226 Difference]: Without dead ends: 1688 [2021-11-13 17:49:54,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:49:54,840 INFO L933 BasicCegarLoop]: 944 mSDtfsCounter, 1357 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2927.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.12ms SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3583.45ms IncrementalHoareTripleChecker+Time [2021-11-13 17:49:54,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1364 Valid, 1215 Invalid, 979 Unknown, 0 Unchecked, 27.12ms Time], IncrementalHoareTripleChecker [102 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 3583.45ms Time] [2021-11-13 17:49:54,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2021-11-13 17:49:54,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1428. [2021-11-13 17:49:54,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 788 states have (on average 1.9581218274111676) internal successors, (1543), 1414 states have internal predecessors, (1543), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:49:54,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1570 transitions. [2021-11-13 17:49:54,931 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1570 transitions. Word has length 9 [2021-11-13 17:49:54,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:49:54,932 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1570 transitions. [2021-11-13 17:49:54,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:49:54,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1570 transitions. [2021-11-13 17:49:54,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 17:49:54,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:49:54,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:49:54,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:49:55,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:49:55,148 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:49:55,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:49:55,148 INFO L85 PathProgramCache]: Analyzing trace with hash 477995292, now seen corresponding path program 1 times [2021-11-13 17:49:55,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:49:55,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069137915] [2021-11-13 17:49:55,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:49:55,150 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:49:55,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:49:55,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:49:55,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 17:49:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:49:55,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:49:55,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:49:55,392 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 [2021-11-13 17:49:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:55,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:49:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:49:55,509 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:49:55,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069137915] [2021-11-13 17:49:55,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069137915] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:49:55,510 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:49:55,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 17:49:55,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658912960] [2021-11-13 17:49:55,510 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:49:55,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:49:55,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:49:55,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:49:55,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:49:55,512 INFO L87 Difference]: Start difference. First operand 1428 states and 1570 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:03,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:03,569 INFO L93 Difference]: Finished difference Result 1990 states and 2173 transitions. [2021-11-13 17:50:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:50:03,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-11-13 17:50:03,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:03,584 INFO L225 Difference]: With dead ends: 1990 [2021-11-13 17:50:03,584 INFO L226 Difference]: Without dead ends: 1990 [2021-11-13 17:50:03,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:50:03,586 INFO L933 BasicCegarLoop]: 1277 mSDtfsCounter, 1546 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7040.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.58ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7936.93ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:03,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 1900 Invalid, 1084 Unknown, 0 Unchecked, 17.58ms Time], IncrementalHoareTripleChecker [28 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 7936.93ms Time] [2021-11-13 17:50:03,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2021-11-13 17:50:03,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1584. [2021-11-13 17:50:03,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 954 states have (on average 1.9381551362683438) internal successors, (1849), 1570 states have internal predecessors, (1849), 14 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 17:50:03,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1876 transitions. [2021-11-13 17:50:03,660 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1876 transitions. Word has length 9 [2021-11-13 17:50:03,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:03,661 INFO L470 AbstractCegarLoop]: Abstraction has 1584 states and 1876 transitions. [2021-11-13 17:50:03,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:03,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1876 transitions. [2021-11-13 17:50:03,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 17:50:03,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:03,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:50:03,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:03,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:03,876 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr640REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:03,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1934639506, now seen corresponding path program 1 times [2021-11-13 17:50:03,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:03,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147430761] [2021-11-13 17:50:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:03,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:03,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:03,879 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:03,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 17:50:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:04,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:50:04,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:04,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:04,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:04,164 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:04,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147430761] [2021-11-13 17:50:04,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147430761] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:04,172 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:04,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:50:04,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841738193] [2021-11-13 17:50:04,173 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:04,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:50:04,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:04,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:50:04,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:50:04,176 INFO L87 Difference]: Start difference. First operand 1584 states and 1876 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:04,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:04,428 INFO L93 Difference]: Finished difference Result 3135 states and 3710 transitions. [2021-11-13 17:50:04,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:50:04,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-13 17:50:04,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:04,450 INFO L225 Difference]: With dead ends: 3135 [2021-11-13 17:50:04,450 INFO L226 Difference]: Without dead ends: 3135 [2021-11-13 17:50:04,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:50:04,454 INFO L933 BasicCegarLoop]: 1702 mSDtfsCounter, 3819 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3833 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.60ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 177.26ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:04,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3833 Valid, 3110 Invalid, 40 Unknown, 0 Unchecked, 11.60ms Time], IncrementalHoareTripleChecker [15 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 177.26ms Time] [2021-11-13 17:50:04,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2021-11-13 17:50:04,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 2518. [2021-11-13 17:50:04,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 1887 states have (on average 1.9438261791202969) internal successors, (3668), 2497 states have internal predecessors, (3668), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 17:50:04,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3709 transitions. [2021-11-13 17:50:04,576 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3709 transitions. Word has length 10 [2021-11-13 17:50:04,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:04,576 INFO L470 AbstractCegarLoop]: Abstraction has 2518 states and 3709 transitions. [2021-11-13 17:50:04,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:04,577 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3709 transitions. [2021-11-13 17:50:04,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 17:50:04,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:04,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:50:04,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:04,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:04,791 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:04,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:04,792 INFO L85 PathProgramCache]: Analyzing trace with hash -198428059, now seen corresponding path program 1 times [2021-11-13 17:50:04,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:04,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879075344] [2021-11-13 17:50:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:04,793 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:04,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:04,794 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:04,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 17:50:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:05,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:50:05,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:05,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:05,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:05,189 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:05,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879075344] [2021-11-13 17:50:05,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879075344] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:05,189 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:05,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 17:50:05,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558669254] [2021-11-13 17:50:05,190 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:05,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:50:05,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:05,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:50:05,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:50:05,192 INFO L87 Difference]: Start difference. First operand 2518 states and 3709 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:05,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:05,252 INFO L93 Difference]: Finished difference Result 2458 states and 3623 transitions. [2021-11-13 17:50:05,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:50:05,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-11-13 17:50:05,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:05,274 INFO L225 Difference]: With dead ends: 2458 [2021-11-13 17:50:05,279 INFO L226 Difference]: Without dead ends: 2458 [2021-11-13 17:50:05,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:50:05,281 INFO L933 BasicCegarLoop]: 1377 mSDtfsCounter, 1328 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.46ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:05,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 1481 Invalid, 12 Unknown, 0 Unchecked, 4.18ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 20.46ms Time] [2021-11-13 17:50:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2021-11-13 17:50:05,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2458. [2021-11-13 17:50:05,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 1851 states have (on average 1.9351701782820097) internal successors, (3582), 2437 states have internal predecessors, (3582), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 17:50:05,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3623 transitions. [2021-11-13 17:50:05,378 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3623 transitions. Word has length 15 [2021-11-13 17:50:05,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:05,379 INFO L470 AbstractCegarLoop]: Abstraction has 2458 states and 3623 transitions. [2021-11-13 17:50:05,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:05,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3623 transitions. [2021-11-13 17:50:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 17:50:05,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:05,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:50:05,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:05,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:05,594 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr29REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:05,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:05,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1710805312, now seen corresponding path program 1 times [2021-11-13 17:50:05,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:05,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531980386] [2021-11-13 17:50:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:05,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:05,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:05,598 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:05,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 17:50:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:05,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:50:05,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:05,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:05,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:05,969 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:05,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531980386] [2021-11-13 17:50:05,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531980386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:05,970 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:05,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-13 17:50:05,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350501195] [2021-11-13 17:50:05,970 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:05,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:50:05,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:05,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:50:05,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:50:05,972 INFO L87 Difference]: Start difference. First operand 2458 states and 3623 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:06,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:06,110 INFO L93 Difference]: Finished difference Result 2430 states and 3567 transitions. [2021-11-13 17:50:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:50:06,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-11-13 17:50:06,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:06,127 INFO L225 Difference]: With dead ends: 2430 [2021-11-13 17:50:06,127 INFO L226 Difference]: Without dead ends: 2430 [2021-11-13 17:50:06,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:50:06,129 INFO L933 BasicCegarLoop]: 1332 mSDtfsCounter, 2588 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.55ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.69ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:06,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2595 Valid, 2710 Invalid, 81 Unknown, 0 Unchecked, 8.55ms Time], IncrementalHoareTripleChecker [49 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 87.69ms Time] [2021-11-13 17:50:06,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2021-11-13 17:50:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2428. [2021-11-13 17:50:06,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1835 states have (on average 1.9204359673024523) internal successors, (3524), 2407 states have internal predecessors, (3524), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 17:50:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3565 transitions. [2021-11-13 17:50:06,210 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3565 transitions. Word has length 17 [2021-11-13 17:50:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:06,211 INFO L470 AbstractCegarLoop]: Abstraction has 2428 states and 3565 transitions. [2021-11-13 17:50:06,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3565 transitions. [2021-11-13 17:50:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 17:50:06,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:06,214 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] [2021-11-13 17:50:06,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:06,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:06,429 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr42REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:06,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1776633043, now seen corresponding path program 1 times [2021-11-13 17:50:06,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:06,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265813651] [2021-11-13 17:50:06,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:06,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:06,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:06,432 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:06,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 17:50:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:06,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:50:06,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:06,712 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 [2021-11-13 17:50:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:06,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:06,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:06,995 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:06,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265813651] [2021-11-13 17:50:06,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265813651] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:06,996 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:06,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 17:50:06,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502432096] [2021-11-13 17:50:06,997 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:06,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:50:06,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:06,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:50:06,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:50:06,999 INFO L87 Difference]: Start difference. First operand 2428 states and 3565 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:11,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:11,413 INFO L93 Difference]: Finished difference Result 3690 states and 5247 transitions. [2021-11-13 17:50:11,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:50:11,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-13 17:50:11,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:11,438 INFO L225 Difference]: With dead ends: 3690 [2021-11-13 17:50:11,438 INFO L226 Difference]: Without dead ends: 3690 [2021-11-13 17:50:11,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:50:11,440 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 2979 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3624.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2983 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.75ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4303.96ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:11,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2983 Valid, 1561 Invalid, 1425 Unknown, 0 Unchecked, 16.75ms Time], IncrementalHoareTripleChecker [41 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 4303.96ms Time] [2021-11-13 17:50:11,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2021-11-13 17:50:11,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 2424. [2021-11-13 17:50:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 1835 states have (on average 1.9160762942779292) internal successors, (3516), 2403 states have internal predecessors, (3516), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 17:50:11,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 3557 transitions. [2021-11-13 17:50:11,554 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 3557 transitions. Word has length 31 [2021-11-13 17:50:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:11,554 INFO L470 AbstractCegarLoop]: Abstraction has 2424 states and 3557 transitions. [2021-11-13 17:50:11,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:11,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 3557 transitions. [2021-11-13 17:50:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 17:50:11,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:11,556 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] [2021-11-13 17:50:11,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:11,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:11,771 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr43REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:11,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:11,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1776633042, now seen corresponding path program 1 times [2021-11-13 17:50:11,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:11,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11148034] [2021-11-13 17:50:11,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:11,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:11,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:11,773 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:11,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 17:50:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:11,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:50:11,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:12,019 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 [2021-11-13 17:50:12,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:12,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:12,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:12,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11148034] [2021-11-13 17:50:12,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11148034] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:12,875 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:12,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 17:50:12,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750579592] [2021-11-13 17:50:12,875 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:12,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:50:12,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:12,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:50:12,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:50:12,876 INFO L87 Difference]: Start difference. First operand 2424 states and 3557 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:23,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:23,633 INFO L93 Difference]: Finished difference Result 2989 states and 4144 transitions. [2021-11-13 17:50:23,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:50:23,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-13 17:50:23,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:23,664 INFO L225 Difference]: With dead ends: 2989 [2021-11-13 17:50:23,664 INFO L226 Difference]: Without dead ends: 2989 [2021-11-13 17:50:23,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:50:23,666 INFO L933 BasicCegarLoop]: 1006 mSDtfsCounter, 2706 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9403.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2706 SdHoareTripleChecker+Valid, 2258 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.73ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10594.35ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:23,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2706 Valid, 2258 Invalid, 1713 Unknown, 0 Unchecked, 15.73ms Time], IncrementalHoareTripleChecker [21 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 10594.35ms Time] [2021-11-13 17:50:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2021-11-13 17:50:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 2420. [2021-11-13 17:50:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1835 states have (on average 1.911716621253406) internal successors, (3508), 2399 states have internal predecessors, (3508), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 17:50:23,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3549 transitions. [2021-11-13 17:50:23,742 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3549 transitions. Word has length 31 [2021-11-13 17:50:23,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:23,742 INFO L470 AbstractCegarLoop]: Abstraction has 2420 states and 3549 transitions. [2021-11-13 17:50:23,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:23,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3549 transitions. [2021-11-13 17:50:23,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-13 17:50:23,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:23,745 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] [2021-11-13 17:50:23,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:23,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:23,960 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr107REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:23,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:23,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1157280663, now seen corresponding path program 1 times [2021-11-13 17:50:23,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:23,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718840095] [2021-11-13 17:50:23,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:23,961 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:23,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:23,964 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:23,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 17:50:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:24,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:50:24,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:24,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:24,494 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:24,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718840095] [2021-11-13 17:50:24,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718840095] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:24,495 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:24,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 17:50:24,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724156669] [2021-11-13 17:50:24,495 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:24,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:50:24,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:24,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:50:24,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:50:24,497 INFO L87 Difference]: Start difference. First operand 2420 states and 3549 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:24,573 INFO L93 Difference]: Finished difference Result 2408 states and 3529 transitions. [2021-11-13 17:50:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:50:24,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2021-11-13 17:50:24,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:24,589 INFO L225 Difference]: With dead ends: 2408 [2021-11-13 17:50:24,589 INFO L226 Difference]: Without dead ends: 2408 [2021-11-13 17:50:24,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:50:24,593 INFO L933 BasicCegarLoop]: 1326 mSDtfsCounter, 1275 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.85ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.02ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:24,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1282 Valid, 2688 Invalid, 41 Unknown, 0 Unchecked, 4.85ms Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 44.02ms Time] [2021-11-13 17:50:24,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2021-11-13 17:50:24,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2408. [2021-11-13 17:50:24,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 1823 states have (on average 1.9133296763576522) internal successors, (3488), 2387 states have internal predecessors, (3488), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 17:50:24,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3529 transitions. [2021-11-13 17:50:24,652 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3529 transitions. Word has length 46 [2021-11-13 17:50:24,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:24,653 INFO L470 AbstractCegarLoop]: Abstraction has 2408 states and 3529 transitions. [2021-11-13 17:50:24,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3529 transitions. [2021-11-13 17:50:24,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-13 17:50:24,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:24,662 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] [2021-11-13 17:50:24,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:24,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:24,880 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr107REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:24,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:24,880 INFO L85 PathProgramCache]: Analyzing trace with hash 774874315, now seen corresponding path program 1 times [2021-11-13 17:50:24,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:24,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981763558] [2021-11-13 17:50:24,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:24,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:24,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:24,883 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:24,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 17:50:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:25,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:50:25,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:25,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:25,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:26,095 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:26,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981763558] [2021-11-13 17:50:26,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981763558] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:26,096 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:26,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 17:50:26,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457203127] [2021-11-13 17:50:26,096 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:26,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:50:26,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:26,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:50:26,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:50:26,098 INFO L87 Difference]: Start difference. First operand 2408 states and 3529 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:26,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:26,216 INFO L93 Difference]: Finished difference Result 2224 states and 3174 transitions. [2021-11-13 17:50:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:50:26,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-11-13 17:50:26,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:26,241 INFO L225 Difference]: With dead ends: 2224 [2021-11-13 17:50:26,242 INFO L226 Difference]: Without dead ends: 2224 [2021-11-13 17:50:26,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:50:26,243 INFO L933 BasicCegarLoop]: 1334 mSDtfsCounter, 67 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.43ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.36ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:26,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 2573 Invalid, 28 Unknown, 0 Unchecked, 3.43ms Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 97.36ms Time] [2021-11-13 17:50:26,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2021-11-13 17:50:26,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2224. [2021-11-13 17:50:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2224 states, 1639 states have (on average 1.9115314215985357) internal successors, (3133), 2203 states have internal predecessors, (3133), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 16 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-13 17:50:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 3174 transitions. [2021-11-13 17:50:26,299 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 3174 transitions. Word has length 54 [2021-11-13 17:50:26,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:26,302 INFO L470 AbstractCegarLoop]: Abstraction has 2224 states and 3174 transitions. [2021-11-13 17:50:26,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 3174 transitions. [2021-11-13 17:50:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-13 17:50:26,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:26,305 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] [2021-11-13 17:50:26,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:26,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:26,519 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr61REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:26,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1275903144, now seen corresponding path program 1 times [2021-11-13 17:50:26,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:26,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290505857] [2021-11-13 17:50:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:26,521 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:26,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:26,522 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:26,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 17:50:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:26,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 17:50:26,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:26,969 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 [2021-11-13 17:50:26,976 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 [2021-11-13 17:50:27,697 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 17:50:27,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-13 17:50:27,706 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 17:50:27,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2021-11-13 17:50:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:27,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:34,748 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:34,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290505857] [2021-11-13 17:50:34,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290505857] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:34,749 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:34,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 17:50:34,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16272974] [2021-11-13 17:50:34,749 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:34,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:50:34,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:34,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:50:34,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-13 17:50:34,751 INFO L87 Difference]: Start difference. First operand 2224 states and 3174 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:47,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:47,016 INFO L93 Difference]: Finished difference Result 3580 states and 4719 transitions. [2021-11-13 17:50:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:50:47,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-11-13 17:50:47,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:47,044 INFO L225 Difference]: With dead ends: 3580 [2021-11-13 17:50:47,044 INFO L226 Difference]: Without dead ends: 3580 [2021-11-13 17:50:47,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-13 17:50:47,045 INFO L933 BasicCegarLoop]: 768 mSDtfsCounter, 1903 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10469.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 4088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.81ms SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1836 IncrementalHoareTripleChecker+Unchecked, 12089.69ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:47,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1912 Valid, 2374 Invalid, 4088 Unknown, 0 Unchecked, 29.81ms Time], IncrementalHoareTripleChecker [90 Valid, 2162 Invalid, 0 Unknown, 1836 Unchecked, 12089.69ms Time] [2021-11-13 17:50:47,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2021-11-13 17:50:47,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 2319. [2021-11-13 17:50:47,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 1766 states have (on average 1.869762174405436) internal successors, (3302), 2295 states have internal predecessors, (3302), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (23), 19 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 17:50:47,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 3349 transitions. [2021-11-13 17:50:47,108 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 3349 transitions. Word has length 57 [2021-11-13 17:50:47,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:47,109 INFO L470 AbstractCegarLoop]: Abstraction has 2319 states and 3349 transitions. [2021-11-13 17:50:47,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:47,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 3349 transitions. [2021-11-13 17:50:47,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-13 17:50:47,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:47,110 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] [2021-11-13 17:50:47,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:47,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:47,326 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr63REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:47,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:47,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2077232391, now seen corresponding path program 1 times [2021-11-13 17:50:47,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:47,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187123724] [2021-11-13 17:50:47,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:47,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:47,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:47,329 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:47,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 17:50:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:47,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:50:47,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:47,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:47,953 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 [2021-11-13 17:50:48,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:48,260 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:48,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187123724] [2021-11-13 17:50:48,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187123724] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:48,260 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:48,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 17:50:48,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613900419] [2021-11-13 17:50:48,260 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:48,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:50:48,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:48,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:50:48,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:50:48,262 INFO L87 Difference]: Start difference. First operand 2319 states and 3349 transitions. Second operand has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:51,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:51,042 INFO L93 Difference]: Finished difference Result 2317 states and 3345 transitions. [2021-11-13 17:50:51,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:50:51,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-11-13 17:50:51,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:51,051 INFO L225 Difference]: With dead ends: 2317 [2021-11-13 17:50:51,051 INFO L226 Difference]: Without dead ends: 2317 [2021-11-13 17:50:51,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:50:51,052 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 1235 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2324.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.35ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2739.13ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:51,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1242 Valid, 825 Invalid, 689 Unknown, 0 Unchecked, 7.35ms Time], IncrementalHoareTripleChecker [14 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 2739.13ms Time] [2021-11-13 17:50:51,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2021-11-13 17:50:51,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2317. [2021-11-13 17:50:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 1766 states have (on average 1.8674971687429218) internal successors, (3298), 2293 states have internal predecessors, (3298), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (23), 19 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 17:50:51,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 3345 transitions. [2021-11-13 17:50:51,101 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 3345 transitions. Word has length 59 [2021-11-13 17:50:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:51,102 INFO L470 AbstractCegarLoop]: Abstraction has 2317 states and 3345 transitions. [2021-11-13 17:50:51,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 3345 transitions. [2021-11-13 17:50:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-13 17:50:51,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:51,104 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] [2021-11-13 17:50:51,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:51,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:51,317 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr66REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:51,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:51,317 INFO L85 PathProgramCache]: Analyzing trace with hash -941052642, now seen corresponding path program 1 times [2021-11-13 17:50:51,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:51,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257167664] [2021-11-13 17:50:51,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:51,319 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:51,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:51,320 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:51,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 17:50:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:51,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:50:51,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:51,783 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 [2021-11-13 17:50:51,802 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 [2021-11-13 17:50:51,851 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 [2021-11-13 17:50:51,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:51,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:51,997 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:51,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257167664] [2021-11-13 17:50:51,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257167664] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:51,998 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:51,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 17:50:51,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285866542] [2021-11-13 17:50:51,998 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:51,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:50:51,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:51,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:50:51,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:50:51,999 INFO L87 Difference]: Start difference. First operand 2317 states and 3345 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:50:56,658 INFO L93 Difference]: Finished difference Result 2316 states and 3343 transitions. [2021-11-13 17:50:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:50:56,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2021-11-13 17:50:56,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:50:56,665 INFO L225 Difference]: With dead ends: 2316 [2021-11-13 17:50:56,665 INFO L226 Difference]: Without dead ends: 2316 [2021-11-13 17:50:56,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:50:56,667 INFO L933 BasicCegarLoop]: 1296 mSDtfsCounter, 4 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3925.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3357 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.38ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4574.04ms IncrementalHoareTripleChecker+Time [2021-11-13 17:50:56,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3357 Invalid, 1833 Unknown, 0 Unchecked, 13.38ms Time], IncrementalHoareTripleChecker [1 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 4574.04ms Time] [2021-11-13 17:50:56,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2021-11-13 17:50:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2316. [2021-11-13 17:50:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 1766 states have (on average 1.8663646659116648) internal successors, (3296), 2292 states have internal predecessors, (3296), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (23), 19 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 17:50:56,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3343 transitions. [2021-11-13 17:50:56,721 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3343 transitions. Word has length 62 [2021-11-13 17:50:56,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:50:56,722 INFO L470 AbstractCegarLoop]: Abstraction has 2316 states and 3343 transitions. [2021-11-13 17:50:56,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:50:56,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3343 transitions. [2021-11-13 17:50:56,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-13 17:50:56,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:50:56,724 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] [2021-11-13 17:50:56,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 17:50:56,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:50:56,938 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr67REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:50:56,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:50:56,938 INFO L85 PathProgramCache]: Analyzing trace with hash -941052641, now seen corresponding path program 1 times [2021-11-13 17:50:56,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:50:56,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494676378] [2021-11-13 17:50:56,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:50:56,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:50:56,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:50:56,940 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:50:56,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 17:50:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:50:57,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:50:57,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:50:57,310 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 [2021-11-13 17:50:57,352 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 [2021-11-13 17:50:57,365 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 [2021-11-13 17:50:57,448 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 [2021-11-13 17:50:57,452 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 [2021-11-13 17:50:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:57,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:50:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:50:57,870 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:50:57,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494676378] [2021-11-13 17:50:57,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494676378] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:50:57,870 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:50:57,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 17:50:57,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681061793] [2021-11-13 17:50:57,871 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:50:57,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:50:57,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:50:57,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:50:57,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:50:57,872 INFO L87 Difference]: Start difference. First operand 2316 states and 3343 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:51:11,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:11,213 INFO L93 Difference]: Finished difference Result 2315 states and 3341 transitions. [2021-11-13 17:51:11,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:51:11,214 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2021-11-13 17:51:11,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:11,220 INFO L225 Difference]: With dead ends: 2315 [2021-11-13 17:51:11,220 INFO L226 Difference]: Without dead ends: 2315 [2021-11-13 17:51:11,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:51:11,221 INFO L933 BasicCegarLoop]: 1296 mSDtfsCounter, 3 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11799.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4611 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.70ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13208.38ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:11,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4611 Invalid, 3168 Unknown, 0 Unchecked, 20.70ms Time], IncrementalHoareTripleChecker [1 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 13208.38ms Time] [2021-11-13 17:51:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2021-11-13 17:51:11,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2315. [2021-11-13 17:51:11,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 1764 states have (on average 1.8673469387755102) internal successors, (3294), 2291 states have internal predecessors, (3294), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (23), 19 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-13 17:51:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3341 transitions. [2021-11-13 17:51:11,261 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3341 transitions. Word has length 62 [2021-11-13 17:51:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:11,261 INFO L470 AbstractCegarLoop]: Abstraction has 2315 states and 3341 transitions. [2021-11-13 17:51:11,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:51:11,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3341 transitions. [2021-11-13 17:51:11,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-13 17:51:11,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:11,263 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] [2021-11-13 17:51:11,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 17:51:11,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:51:11,477 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:51:11,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:11,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1858466459, now seen corresponding path program 1 times [2021-11-13 17:51:11,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:11,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746035634] [2021-11-13 17:51:11,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:11,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:11,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:11,483 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:11,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 17:51:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:11,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:51:11,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:11,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:11,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:51:12,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:12,020 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:51:12,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746035634] [2021-11-13 17:51:12,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746035634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:51:12,020 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:51:12,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 17:51:12,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817184929] [2021-11-13 17:51:12,020 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:51:12,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:51:12,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:51:12,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:51:12,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:51:12,022 INFO L87 Difference]: Start difference. First operand 2315 states and 3341 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:12,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:12,175 INFO L93 Difference]: Finished difference Result 2325 states and 3358 transitions. [2021-11-13 17:51:12,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:51:12,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 70 [2021-11-13 17:51:12,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:12,184 INFO L225 Difference]: With dead ends: 2325 [2021-11-13 17:51:12,184 INFO L226 Difference]: Without dead ends: 2325 [2021-11-13 17:51:12,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:51:12,185 INFO L933 BasicCegarLoop]: 1294 mSDtfsCounter, 9 mSDsluCounter, 3863 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.88ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.80ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:12,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 5157 Invalid, 58 Unknown, 0 Unchecked, 3.88ms Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 100.80ms Time] [2021-11-13 17:51:12,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2021-11-13 17:51:12,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2325. [2021-11-13 17:51:12,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 1772 states have (on average 1.8656884875846502) internal successors, (3306), 2300 states have internal predecessors, (3306), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (28), 19 states have call predecessors, (28), 23 states have call successors, (28) [2021-11-13 17:51:12,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 3358 transitions. [2021-11-13 17:51:12,231 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 3358 transitions. Word has length 70 [2021-11-13 17:51:12,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:12,232 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 3358 transitions. [2021-11-13 17:51:12,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:12,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 3358 transitions. [2021-11-13 17:51:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 17:51:12,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:12,233 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] [2021-11-13 17:51:12,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 17:51:12,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:51:12,447 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:51:12,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:12,448 INFO L85 PathProgramCache]: Analyzing trace with hash -474665627, now seen corresponding path program 1 times [2021-11-13 17:51:12,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:12,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31718083] [2021-11-13 17:51:12,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:51:12,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:12,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:12,450 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:12,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 17:51:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:51:12,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:51:12,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:12,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:12,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:51:13,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:13,122 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:51:13,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31718083] [2021-11-13 17:51:13,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31718083] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:51:13,123 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:51:13,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-13 17:51:13,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079389215] [2021-11-13 17:51:13,123 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:51:13,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:51:13,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:51:13,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:51:13,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:51:13,124 INFO L87 Difference]: Start difference. First operand 2325 states and 3358 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:13,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:13,688 INFO L93 Difference]: Finished difference Result 2339 states and 3384 transitions. [2021-11-13 17:51:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:51:13,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 72 [2021-11-13 17:51:13,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:13,696 INFO L225 Difference]: With dead ends: 2339 [2021-11-13 17:51:13,696 INFO L226 Difference]: Without dead ends: 2335 [2021-11-13 17:51:13,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2021-11-13 17:51:13,697 INFO L933 BasicCegarLoop]: 1296 mSDtfsCounter, 18 mSDsluCounter, 9022 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 258.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10318 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.90ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 317.59ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:13,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 10318 Invalid, 165 Unknown, 0 Unchecked, 11.90ms Time], IncrementalHoareTripleChecker [23 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 317.59ms Time] [2021-11-13 17:51:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2335 states. [2021-11-13 17:51:13,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2335 to 2331. [2021-11-13 17:51:13,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 1778 states have (on average 1.8638920134983128) internal successors, (3314), 2306 states have internal predecessors, (3314), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (28), 19 states have call predecessors, (28), 23 states have call successors, (28) [2021-11-13 17:51:13,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3366 transitions. [2021-11-13 17:51:13,743 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3366 transitions. Word has length 72 [2021-11-13 17:51:13,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:13,744 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3366 transitions. [2021-11-13 17:51:13,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:13,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3366 transitions. [2021-11-13 17:51:13,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-13 17:51:13,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:13,745 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] [2021-11-13 17:51:13,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-13 17:51:13,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:51:13,959 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:51:13,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:13,960 INFO L85 PathProgramCache]: Analyzing trace with hash -472683163, now seen corresponding path program 2 times [2021-11-13 17:51:13,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:13,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331849180] [2021-11-13 17:51:13,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:51:13,960 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:13,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:13,961 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:13,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 17:51:14,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:51:14,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:51:14,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 17:51:14,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:14,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:51:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:15,190 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:51:15,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331849180] [2021-11-13 17:51:15,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331849180] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:51:15,190 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:51:15,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-13 17:51:15,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139462043] [2021-11-13 17:51:15,190 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:51:15,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-13 17:51:15,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:51:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-13 17:51:15,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-13 17:51:15,192 INFO L87 Difference]: Start difference. First operand 2331 states and 3366 transitions. Second operand has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:16,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:16,922 INFO L93 Difference]: Finished difference Result 2359 states and 3428 transitions. [2021-11-13 17:51:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-13 17:51:16,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 76 [2021-11-13 17:51:16,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:16,940 INFO L225 Difference]: With dead ends: 2359 [2021-11-13 17:51:16,941 INFO L226 Difference]: Without dead ends: 2355 [2021-11-13 17:51:16,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=457, Invalid=949, Unknown=0, NotChecked=0, Total=1406 [2021-11-13 17:51:16,942 INFO L933 BasicCegarLoop]: 1300 mSDtfsCounter, 82 mSDsluCounter, 10356 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 689.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 11656 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.58ms SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 796.69ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:16,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 11656 Invalid, 486 Unknown, 0 Unchecked, 10.58ms Time], IncrementalHoareTripleChecker [89 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 796.69ms Time] [2021-11-13 17:51:16,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2021-11-13 17:51:17,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 2343. [2021-11-13 17:51:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 1790 states have (on average 1.8603351955307263) internal successors, (3330), 2318 states have internal predecessors, (3330), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (28), 19 states have call predecessors, (28), 23 states have call successors, (28) [2021-11-13 17:51:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 3382 transitions. [2021-11-13 17:51:17,010 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 3382 transitions. Word has length 76 [2021-11-13 17:51:17,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:17,010 INFO L470 AbstractCegarLoop]: Abstraction has 2343 states and 3382 transitions. [2021-11-13 17:51:17,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 3382 transitions. [2021-11-13 17:51:17,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 17:51:17,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:17,012 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] [2021-11-13 17:51:17,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-13 17:51:17,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:51:17,228 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:51:17,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:17,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1219489125, now seen corresponding path program 3 times [2021-11-13 17:51:17,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:17,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803311286] [2021-11-13 17:51:17,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:51:17,229 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:17,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:17,230 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:17,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-13 17:51:18,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-13 17:51:18,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:51:18,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 17:51:18,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:18,600 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:18,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:51:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:20,596 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:51:20,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803311286] [2021-11-13 17:51:20,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803311286] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:51:20,596 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:51:20,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-13 17:51:20,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241014865] [2021-11-13 17:51:20,596 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:51:20,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-13 17:51:20,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:51:20,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-13 17:51:20,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-13 17:51:20,599 INFO L87 Difference]: Start difference. First operand 2343 states and 3382 transitions. Second operand has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:30,137 INFO L93 Difference]: Finished difference Result 2399 states and 3546 transitions. [2021-11-13 17:51:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-13 17:51:30,137 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 84 [2021-11-13 17:51:30,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:30,144 INFO L225 Difference]: With dead ends: 2399 [2021-11-13 17:51:30,144 INFO L226 Difference]: Without dead ends: 2393 [2021-11-13 17:51:30,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1377, Invalid=2783, Unknown=0, NotChecked=0, Total=4160 [2021-11-13 17:51:30,147 INFO L933 BasicCegarLoop]: 1306 mSDtfsCounter, 236 mSDsluCounter, 19514 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3029.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 20820 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.04ms SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3412.57ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:30,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 20820 Invalid, 1768 Unknown, 0 Unchecked, 26.04ms Time], IncrementalHoareTripleChecker [181 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 3412.57ms Time] [2021-11-13 17:51:30,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2021-11-13 17:51:30,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2367. [2021-11-13 17:51:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 1814 states have (on average 1.8528114663726571) internal successors, (3361), 2342 states have internal predecessors, (3361), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (28), 19 states have call predecessors, (28), 23 states have call successors, (28) [2021-11-13 17:51:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3413 transitions. [2021-11-13 17:51:30,197 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3413 transitions. Word has length 84 [2021-11-13 17:51:30,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:30,198 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 3413 transitions. [2021-11-13 17:51:30,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.823529411764706) internal successors, (96), 34 states have internal predecessors, (96), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:30,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3413 transitions. [2021-11-13 17:51:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-13 17:51:30,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:30,199 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] [2021-11-13 17:51:30,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-13 17:51:30,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:51:30,417 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:51:30,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:30,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1692986725, now seen corresponding path program 4 times [2021-11-13 17:51:30,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:30,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699855047] [2021-11-13 17:51:30,418 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 17:51:30,418 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:30,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:30,419 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:30,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-13 17:51:30,743 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 17:51:30,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:51:30,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-13 17:51:30,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:31,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:51:36,167 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:51:36,167 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:51:36,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699855047] [2021-11-13 17:51:36,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699855047] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:51:36,168 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:51:36,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-13 17:51:36,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223092214] [2021-11-13 17:51:36,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:51:36,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-13 17:51:36,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:51:36,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-13 17:51:36,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290 [2021-11-13 17:51:36,171 INFO L87 Difference]: Start difference. First operand 2367 states and 3413 transitions. Second operand has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:55,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:51:55,896 INFO L93 Difference]: Finished difference Result 2459 states and 3649 transitions. [2021-11-13 17:51:55,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-13 17:51:55,897 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 100 [2021-11-13 17:51:55,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:51:55,924 INFO L225 Difference]: With dead ends: 2459 [2021-11-13 17:51:55,924 INFO L226 Difference]: Without dead ends: 2455 [2021-11-13 17:51:55,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2313 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=4503, Invalid=14679, Unknown=0, NotChecked=0, Total=19182 [2021-11-13 17:51:55,933 INFO L933 BasicCegarLoop]: 1323 mSDtfsCounter, 258 mSDsluCounter, 43437 mSDsCounter, 0 mSdLazyCounter, 5159 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10225.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 44760 SdHoareTripleChecker+Invalid, 5777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.36ms SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 5159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11661.24ms IncrementalHoareTripleChecker+Time [2021-11-13 17:51:55,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 44760 Invalid, 5777 Unknown, 0 Unchecked, 75.36ms Time], IncrementalHoareTripleChecker [618 Valid, 5159 Invalid, 0 Unknown, 0 Unchecked, 11661.24ms Time] [2021-11-13 17:51:55,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2021-11-13 17:51:55,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2397. [2021-11-13 17:51:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 1844 states have (on average 1.8476138828633406) internal successors, (3407), 2372 states have internal predecessors, (3407), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (28), 19 states have call predecessors, (28), 23 states have call successors, (28) [2021-11-13 17:51:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 3459 transitions. [2021-11-13 17:51:55,987 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 3459 transitions. Word has length 100 [2021-11-13 17:51:55,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:51:55,988 INFO L470 AbstractCegarLoop]: Abstraction has 2397 states and 3459 transitions. [2021-11-13 17:51:55,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.9393939393939394) internal successors, (128), 66 states have internal predecessors, (128), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 17:51:55,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 3459 transitions. [2021-11-13 17:51:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-13 17:51:55,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:51:55,990 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] [2021-11-13 17:51:56,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-13 17:51:56,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:51:56,211 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 725 more)] === [2021-11-13 17:51:56,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:51:56,212 INFO L85 PathProgramCache]: Analyzing trace with hash 282512741, now seen corresponding path program 5 times [2021-11-13 17:51:56,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:51:56,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245842845] [2021-11-13 17:51:56,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-13 17:51:56,213 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:51:56,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:51:56,214 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:51:56,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8c82c73-b28c-4eef-9a0a-d1a61ee1cfb3/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-13 17:51:57,503 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-11-13 17:51:57,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:51:57,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-13 17:51:57,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:51:57,557 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 [2021-11-13 17:51:57,803 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-13 17:51:57,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-11-13 17:51:57,871 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 27 treesize of output 23 [2021-11-13 17:51:58,128 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 48 treesize of output 36