./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/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 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:26:55,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:26:55,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:26:55,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:26:55,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:26:55,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:26:55,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:26:55,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:26:55,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:26:55,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:26:55,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:26:55,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:26:55,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:26:55,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:26:55,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:26:55,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:26:55,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:26:55,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:26:55,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:26:55,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:26:55,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:26:55,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:26:55,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:26:55,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:26:55,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:26:55,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:26:55,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:26:55,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:26:55,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:26:55,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:26:55,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:26:55,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:26:55,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:26:55,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:26:55,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:26:55,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:26:55,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:26:55,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:26:55,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:26:55,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:26:55,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:26:55,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-13 18:26:55,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:26:55,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:26:55,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:26:55,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:26:55,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:26:55,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:26:55,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:26:55,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:26:55,240 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:26:55,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:26:55,242 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:26:55,242 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:26:55,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:26:55,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:26:55,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:26:55,243 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 18:26:55,244 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 18:26:55,244 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 18:26:55,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:26:55,244 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 18:26:55,245 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:26:55,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:26:55,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:26:55,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:26:55,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:26:55,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:26:55,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:26:55,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:26:55,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:26:55,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:26:55,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:26:55,249 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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 [2021-11-13 18:26:55,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:26:55,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:26:55,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:26:55,636 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:26:55,637 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:26:55,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2021-11-13 18:26:55,718 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data/0435ffb31/4ed3181324b346d08e980c6c5d39c1d0/FLAG49e389b01 [2021-11-13 18:26:56,421 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:26:56,422 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2021-11-13 18:26:56,453 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data/0435ffb31/4ed3181324b346d08e980c6c5d39c1d0/FLAG49e389b01 [2021-11-13 18:26:56,628 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data/0435ffb31/4ed3181324b346d08e980c6c5d39c1d0 [2021-11-13 18:26:56,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:26:56,632 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 18:26:56,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:26:56,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:26:56,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:26:56,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f249367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:56, skipping insertion in model container [2021-11-13 18:26:56,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:26:56" (1/1) ... [2021-11-13 18:26:56,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:26:56,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:26:57,171 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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i[33021,33034] [2021-11-13 18:26:57,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:26:57,378 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 18:26:57,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3724893f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:26:57, skipping insertion in model container [2021-11-13 18:26:57,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:26:57,380 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-13 18:26:57,382 INFO L158 Benchmark]: Toolchain (without parser) took 749.15ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 72.9MB in the beginning and 106.6MB in the end (delta: -33.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:26:57,383 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory was 64.2MB in the beginning and 64.2MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:26:57,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 746.43ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 72.7MB in the beginning and 106.6MB in the end (delta: -33.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:26:57,387 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory was 64.2MB in the beginning and 64.2MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 746.43ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 72.7MB in the beginning and 106.6MB in the end (delta: -33.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 752]: 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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/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 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:26:59,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:26:59,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:26:59,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:26:59,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:26:59,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:26:59,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:26:59,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:26:59,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:26:59,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:26:59,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:26:59,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:26:59,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:26:59,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:26:59,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:26:59,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:26:59,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:26:59,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:26:59,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:26:59,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:26:59,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:26:59,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:26:59,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:26:59,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:26:59,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:26:59,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:26:59,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:26:59,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:26:59,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:26:59,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:26:59,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:26:59,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:26:59,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:26:59,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:26:59,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:26:59,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:26:59,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:26:59,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:26:59,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:26:59,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:26:59,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:26:59,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-13 18:26:59,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:26:59,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:26:59,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:26:59,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:26:59,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:26:59,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:26:59,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:26:59,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:26:59,846 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:26:59,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:26:59,847 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:26:59,847 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:26:59,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:26:59,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:26:59,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:26:59,849 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 18:26:59,849 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 18:26:59,849 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 18:26:59,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:26:59,850 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 18:26:59,850 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:26:59,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:26:59,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:26:59,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:26:59,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:26:59,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:26:59,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:26:59,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:26:59,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:26:59,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:26:59,853 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:26:59,854 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:26:59,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:26:59,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:26:59,855 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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 [2021-11-13 18:27:00,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:27:00,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:27:00,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:27:00,257 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:27:00,258 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:27:00,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2021-11-13 18:27:00,350 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data/8dc52b6a8/cd68d3b736c1486bba4c0d20f3843629/FLAG591814b64 [2021-11-13 18:27:01,161 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:27:01,162 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2021-11-13 18:27:01,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data/8dc52b6a8/cd68d3b736c1486bba4c0d20f3843629/FLAG591814b64 [2021-11-13 18:27:01,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/data/8dc52b6a8/cd68d3b736c1486bba4c0d20f3843629 [2021-11-13 18:27:01,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:27:01,338 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 18:27:01,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:27:01,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:27:01,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:27:01,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:27:01" (1/1) ... [2021-11-13 18:27:01,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51dd3b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:01, skipping insertion in model container [2021-11-13 18:27:01,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:27:01" (1/1) ... [2021-11-13 18:27:01,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:27:01,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:27:02,029 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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i[33021,33034] [2021-11-13 18:27:02,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:27:02,271 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 18:27:02,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:27:02,329 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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i[33021,33034] [2021-11-13 18:27:02,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:27:02,441 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:27:02,481 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_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i[33021,33034] [2021-11-13 18:27:02,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:27:02,664 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:27:02,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02 WrapperNode [2021-11-13 18:27:02,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:27:02,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:27:02,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:27:02,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:27:02,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02" (1/1) ... [2021-11-13 18:27:02,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02" (1/1) ... [2021-11-13 18:27:02,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02" (1/1) ... [2021-11-13 18:27:02,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02" (1/1) ... [2021-11-13 18:27:02,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02" (1/1) ... [2021-11-13 18:27:02,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02" (1/1) ... [2021-11-13 18:27:02,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02" (1/1) ... [2021-11-13 18:27:02,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:27:02,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:27:02,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:27:02,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:27:02,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02" (1/1) ... [2021-11-13 18:27:02,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:27:02,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:27:03,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:27:03,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:27:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-13 18:27:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:27:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 18:27:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-13 18:27:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-13 18:27:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-13 18:27:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-13 18:27:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-13 18:27:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-11-13 18:27:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 18:27:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-13 18:27:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-13 18:27:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:27:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-13 18:27:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2021-11-13 18:27:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2021-11-13 18:27:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-13 18:27:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-13 18:27:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-13 18:27:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-11-13 18:27:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-13 18:27:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-13 18:27:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2021-11-13 18:27:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-11-13 18:27:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-13 18:27:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2021-11-13 18:27:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2021-11-13 18:27:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2021-11-13 18:27:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2021-11-13 18:27:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2021-11-13 18:27:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2021-11-13 18:27:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-11-13 18:27:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-13 18:27:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-11-13 18:27:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2021-11-13 18:27:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2021-11-13 18:27:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-13 18:27:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2021-11-13 18:27:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2021-11-13 18:27:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2021-11-13 18:27:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-11-13 18:27:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-11-13 18:27:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2021-11-13 18:27:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2021-11-13 18:27:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2021-11-13 18:27:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2021-11-13 18:27:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2021-11-13 18:27:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2021-11-13 18:27:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure index [2021-11-13 18:27:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2021-11-13 18:27:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-11-13 18:27:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2021-11-13 18:27:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2021-11-13 18:27:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-13 18:27:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2021-11-13 18:27:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2021-11-13 18:27:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2021-11-13 18:27:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2021-11-13 18:27:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-13 18:27:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2021-11-13 18:27:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2021-11-13 18:27:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2021-11-13 18:27:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2021-11-13 18:27:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2021-11-13 18:27:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-13 18:27:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-13 18:27:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-13 18:27:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-13 18:27:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-13 18:27:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-13 18:27:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-13 18:27:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-13 18:27:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-13 18:27:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-13 18:27:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-13 18:27:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-13 18:27:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-13 18:27:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-13 18:27:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-13 18:27:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-13 18:27:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-13 18:27:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-13 18:27:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-13 18:27:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-13 18:27:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-13 18:27:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-13 18:27:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-13 18:27:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-13 18:27:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-13 18:27:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-13 18:27:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-13 18:27:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-13 18:27:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-13 18:27:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-13 18:27:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-13 18:27:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-13 18:27:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-13 18:27:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-13 18:27:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-13 18:27:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-13 18:27:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-13 18:27:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-13 18:27:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-13 18:27:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-13 18:27:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-13 18:27:03,091 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-13 18:27:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-13 18:27:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-13 18:27:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-13 18:27:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-13 18:27:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-13 18:27:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-13 18:27:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-13 18:27:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-13 18:27:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-13 18:27:03,094 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-13 18:27:03,094 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-13 18:27:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-13 18:27:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-13 18:27:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-13 18:27:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-13 18:27:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-13 18:27:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-13 18:27:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-13 18:27:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-13 18:27:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-13 18:27:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-13 18:27:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-13 18:27:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-13 18:27:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-13 18:27:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-13 18:27:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-13 18:27:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-13 18:27:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-13 18:27:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-13 18:27:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-13 18:27:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-13 18:27:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-13 18:27:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-13 18:27:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-13 18:27:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-13 18:27:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-13 18:27:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-13 18:27:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-13 18:27:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-13 18:27:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-13 18:27:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-13 18:27:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-13 18:27:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-13 18:27:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-13 18:27:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-13 18:27:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-13 18:27:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-13 18:27:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-13 18:27:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-13 18:27:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-13 18:27:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-13 18:27:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-13 18:27:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-13 18:27:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-13 18:27:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-13 18:27:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-13 18:27:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-13 18:27:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-13 18:27:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-13 18:27:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-13 18:27:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-13 18:27:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-13 18:27:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-13 18:27:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-13 18:27:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-13 18:27:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-11-13 18:27:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-11-13 18:27:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-11-13 18:27:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-11-13 18:27:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:27:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 18:27:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-13 18:27:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-13 18:27:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:27:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 18:27:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 18:27:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:27:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:27:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:27:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:27:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 18:27:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-13 18:27:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 18:27:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:27:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 18:27:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 18:27:03,818 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-13 18:27:10,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:27:10,821 INFO L299 CfgBuilder]: Removed 77 assume(true) statements. [2021-11-13 18:27:10,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:27:10 BoogieIcfgContainer [2021-11-13 18:27:10,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:27:10,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:27:10,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:27:10,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:27:10,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:27:01" (1/3) ... [2021-11-13 18:27:10,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613857de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:27:10, skipping insertion in model container [2021-11-13 18:27:10,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:27:02" (2/3) ... [2021-11-13 18:27:10,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613857de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:27:10, skipping insertion in model container [2021-11-13 18:27:10,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:27:10" (3/3) ... [2021-11-13 18:27:10,835 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test4-3.i [2021-11-13 18:27:10,841 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:27:10,842 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 851 error locations. [2021-11-13 18:27:10,893 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:27:10,900 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 18:27:10,900 INFO L340 AbstractCegarLoop]: Starting to check reachability of 851 error locations. [2021-11-13 18:27:10,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 1659 states, 789 states have (on average 2.280101394169835) internal successors, (1799), 1644 states have internal predecessors, (1799), 19 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-13 18:27:10,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 18:27:10,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:10,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:27:10,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:10,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1062938490, now seen corresponding path program 1 times [2021-11-13 18:27:10,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:10,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145158958] [2021-11-13 18:27:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:10,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:10,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:10,984 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:11,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:27:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:11,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 18:27:11,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:11,291 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 18:27:11,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:11,334 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 18:27:11,335 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:11,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145158958] [2021-11-13 18:27:11,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145158958] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:11,338 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:11,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 18:27:11,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878573620] [2021-11-13 18:27:11,356 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:11,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:27:11,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:11,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:27:11,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:27:11,412 INFO L87 Difference]: Start difference. First operand has 1659 states, 789 states have (on average 2.280101394169835) internal successors, (1799), 1644 states have internal predecessors, (1799), 19 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) 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 18:27:11,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:11,575 INFO L93 Difference]: Finished difference Result 1641 states and 1734 transitions. [2021-11-13 18:27:11,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:27:11,577 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 18:27:11,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:11,621 INFO L225 Difference]: With dead ends: 1641 [2021-11-13 18:27:11,621 INFO L226 Difference]: Without dead ends: 1638 [2021-11-13 18:27:11,623 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 18:27:11,629 INFO L933 BasicCegarLoop]: 1734 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, 1734 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:11,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 12.68ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:27:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-11-13 18:27:11,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1638. [2021-11-13 18:27:11,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 780 states have (on average 2.1717948717948716) internal successors, (1694), 1624 states have internal predecessors, (1694), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 9 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 18:27:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 1731 transitions. [2021-11-13 18:27:11,766 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 1731 transitions. Word has length 9 [2021-11-13 18:27:11,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:11,767 INFO L470 AbstractCegarLoop]: Abstraction has 1638 states and 1731 transitions. [2021-11-13 18:27:11,767 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 18:27:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 1731 transitions. [2021-11-13 18:27:11,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 18:27:11,768 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:11,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:27:11,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-13 18:27:11,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:11,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:11,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:11,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1062938552, now seen corresponding path program 1 times [2021-11-13 18:27:11,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:11,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870451669] [2021-11-13 18:27:11,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:11,991 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:11,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:11,992 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:12,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:27:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:27:12,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:12,347 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 18:27:12,363 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 18:27:12,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:12,427 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 18:27:12,437 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:12,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870451669] [2021-11-13 18:27:12,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870451669] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:12,438 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:12,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 18:27:12,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467571830] [2021-11-13 18:27:12,439 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:12,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:27:12,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:12,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:27:12,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:27:12,441 INFO L87 Difference]: Start difference. First operand 1638 states and 1731 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 18:27:15,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:15,758 INFO L93 Difference]: Finished difference Result 1675 states and 1781 transitions. [2021-11-13 18:27:15,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:27:15,759 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 18:27:15,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:15,768 INFO L225 Difference]: With dead ends: 1675 [2021-11-13 18:27:15,769 INFO L226 Difference]: Without dead ends: 1675 [2021-11-13 18:27:15,769 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 18:27:15,771 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 1137 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2622.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.13ms SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3214.90ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:15,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 1345 Invalid, 1023 Unknown, 0 Unchecked, 24.13ms Time], IncrementalHoareTripleChecker [105 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 3214.90ms Time] [2021-11-13 18:27:15,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2021-11-13 18:27:15,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1621. [2021-11-13 18:27:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 856 states have (on average 2.02803738317757) internal successors, (1736), 1607 states have internal predecessors, (1736), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 9 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 18:27:15,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 1773 transitions. [2021-11-13 18:27:15,821 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 1773 transitions. Word has length 9 [2021-11-13 18:27:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:15,822 INFO L470 AbstractCegarLoop]: Abstraction has 1621 states and 1773 transitions. [2021-11-13 18:27:15,822 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 18:27:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 1773 transitions. [2021-11-13 18:27:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 18:27:15,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:15,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:27:15,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:27:16,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:16,039 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:16,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:16,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1062938553, now seen corresponding path program 1 times [2021-11-13 18:27:16,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:16,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838553013] [2021-11-13 18:27:16,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:16,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:16,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:16,042 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:16,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 18:27:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:16,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:27:16,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:16,292 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 18:27:16,325 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 18:27:16,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:16,409 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 18:27:16,412 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:16,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838553013] [2021-11-13 18:27:16,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838553013] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:16,412 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:16,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 18:27:16,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305686614] [2021-11-13 18:27:16,413 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:16,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:27:16,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:16,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:27:16,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:27:16,415 INFO L87 Difference]: Start difference. First operand 1621 states and 1773 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 18:27:24,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:24,526 INFO L93 Difference]: Finished difference Result 1975 states and 2148 transitions. [2021-11-13 18:27:24,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:27:24,527 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 18:27:24,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:24,538 INFO L225 Difference]: With dead ends: 1975 [2021-11-13 18:27:24,538 INFO L226 Difference]: Without dead ends: 1975 [2021-11-13 18:27:24,538 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 18:27:24,540 INFO L933 BasicCegarLoop]: 1334 mSDtfsCounter, 593 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6982.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.72ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7985.03ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:24,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 2693 Invalid, 1824 Unknown, 0 Unchecked, 25.72ms Time], IncrementalHoareTripleChecker [28 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 7985.03ms Time] [2021-11-13 18:27:24,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2021-11-13 18:27:24,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1777. [2021-11-13 18:27:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1022 states have (on average 1.9980430528375734) internal successors, (2042), 1763 states have internal predecessors, (2042), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 9 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-13 18:27:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2079 transitions. [2021-11-13 18:27:24,596 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2079 transitions. Word has length 9 [2021-11-13 18:27:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:24,597 INFO L470 AbstractCegarLoop]: Abstraction has 1777 states and 2079 transitions. [2021-11-13 18:27:24,597 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 18:27:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2079 transitions. [2021-11-13 18:27:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 18:27:24,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:24,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:27:24,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:27:24,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:24,814 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr640REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:24,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:24,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1406955853, now seen corresponding path program 1 times [2021-11-13 18:27:24,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:24,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950149580] [2021-11-13 18:27:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:24,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:24,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:24,817 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:24,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 18:27:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:25,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:27:25,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:25,061 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 18:27:25,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:25,096 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 18:27:25,097 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:25,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950149580] [2021-11-13 18:27:25,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950149580] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:25,103 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:25,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 18:27:25,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788867451] [2021-11-13 18:27:25,104 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:25,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:27:25,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:25,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:27:25,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:27:25,108 INFO L87 Difference]: Start difference. First operand 1777 states and 2079 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 18:27:25,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:25,261 INFO L93 Difference]: Finished difference Result 3122 states and 3687 transitions. [2021-11-13 18:27:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:27:25,262 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 18:27:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:25,280 INFO L225 Difference]: With dead ends: 3122 [2021-11-13 18:27:25,280 INFO L226 Difference]: Without dead ends: 3122 [2021-11-13 18:27:25,280 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 18:27:25,283 INFO L933 BasicCegarLoop]: 1630 mSDtfsCounter, 2286 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.49ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.29ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:25,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2298 Valid, 3722 Invalid, 19 Unknown, 0 Unchecked, 8.49ms Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 94.29ms Time] [2021-11-13 18:27:25,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2021-11-13 18:27:25,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2593. [2021-11-13 18:27:25,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 1838 states have (on average 1.9793253536452666) internal successors, (3638), 2573 states have internal predecessors, (3638), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 15 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-13 18:27:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 3687 transitions. [2021-11-13 18:27:25,396 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 3687 transitions. Word has length 10 [2021-11-13 18:27:25,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:25,396 INFO L470 AbstractCegarLoop]: Abstraction has 2593 states and 3687 transitions. [2021-11-13 18:27:25,396 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 18:27:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 3687 transitions. [2021-11-13 18:27:25,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 18:27:25,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:25,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:27:25,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:27:25,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:25,609 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:25,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash -429534590, now seen corresponding path program 1 times [2021-11-13 18:27:25,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:25,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19361821] [2021-11-13 18:27:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:25,611 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:25,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:25,612 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:25,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 18:27:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:25,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:27:25,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:25,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:27:25,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:25,937 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 18:27:25,938 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:25,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19361821] [2021-11-13 18:27:25,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19361821] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:25,938 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:25,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 18:27:25,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259407790] [2021-11-13 18:27:25,939 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:25,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:27:25,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:25,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:27:25,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:27:25,940 INFO L87 Difference]: Start difference. First operand 2593 states and 3687 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 18:27:26,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:26,024 INFO L93 Difference]: Finished difference Result 2533 states and 3601 transitions. [2021-11-13 18:27:26,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:27:26,024 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 18:27:26,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:26,043 INFO L225 Difference]: With dead ends: 2533 [2021-11-13 18:27:26,043 INFO L226 Difference]: Without dead ends: 2533 [2021-11-13 18:27:26,044 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 18:27:26,044 INFO L933 BasicCegarLoop]: 1580 mSDtfsCounter, 3022 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.68ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.89ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:26,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3029 Valid, 1652 Invalid, 19 Unknown, 0 Unchecked, 9.68ms Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 32.89ms Time] [2021-11-13 18:27:26,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2533 states. [2021-11-13 18:27:26,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2533 to 2533. [2021-11-13 18:27:26,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2533 states, 1802 states have (on average 1.9711431742508325) internal successors, (3552), 2513 states have internal predecessors, (3552), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 15 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-13 18:27:26,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2533 states to 2533 states and 3601 transitions. [2021-11-13 18:27:26,122 INFO L78 Accepts]: Start accepts. Automaton has 2533 states and 3601 transitions. Word has length 15 [2021-11-13 18:27:26,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:26,124 INFO L470 AbstractCegarLoop]: Abstraction has 2533 states and 3601 transitions. [2021-11-13 18:27:26,124 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 18:27:26,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2533 states and 3601 transitions. [2021-11-13 18:27:26,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 18:27:26,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:26,125 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 18:27:26,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:27:26,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:26,337 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr28REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:26,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:26,338 INFO L85 PathProgramCache]: Analyzing trace with hash -465881252, now seen corresponding path program 1 times [2021-11-13 18:27:26,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:26,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152022637] [2021-11-13 18:27:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:26,339 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:26,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:26,340 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:26,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 18:27:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:26,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:27:26,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:26,568 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 18:27:26,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:26,625 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 18:27:26,625 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:26,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152022637] [2021-11-13 18:27:26,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152022637] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:26,626 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:26,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-13 18:27:26,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676805017] [2021-11-13 18:27:26,626 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:26,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:27:26,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:26,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:27:26,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:27:26,628 INFO L87 Difference]: Start difference. First operand 2533 states and 3601 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 18:27:26,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:26,759 INFO L93 Difference]: Finished difference Result 2505 states and 3545 transitions. [2021-11-13 18:27:26,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:27:26,760 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 18:27:26,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:26,777 INFO L225 Difference]: With dead ends: 2505 [2021-11-13 18:27:26,777 INFO L226 Difference]: Without dead ends: 2505 [2021-11-13 18:27:26,778 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 18:27:26,779 INFO L933 BasicCegarLoop]: 1535 mSDtfsCounter, 1482 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3208 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.61ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.66ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:26,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1489 Valid, 3208 Invalid, 64 Unknown, 0 Unchecked, 10.61ms Time], IncrementalHoareTripleChecker [32 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 52.66ms Time] [2021-11-13 18:27:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2021-11-13 18:27:26,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2503. [2021-11-13 18:27:26,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 1786 states have (on average 1.9563269876819709) internal successors, (3494), 2483 states have internal predecessors, (3494), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 15 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-13 18:27:26,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 3543 transitions. [2021-11-13 18:27:26,861 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 3543 transitions. Word has length 17 [2021-11-13 18:27:26,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:26,861 INFO L470 AbstractCegarLoop]: Abstraction has 2503 states and 3543 transitions. [2021-11-13 18:27:26,862 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 18:27:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 3543 transitions. [2021-11-13 18:27:26,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 18:27:26,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:26,864 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 18:27:26,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:27:27,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:27,086 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr42REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:27,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:27,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1175213898, now seen corresponding path program 1 times [2021-11-13 18:27:27,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:27,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072380067] [2021-11-13 18:27:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:27,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:27,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:27,089 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:27,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 18:27:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:27,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:27:27,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:27,341 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 18:27:27,440 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 18:27:27,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:27,556 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 18:27:27,556 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:27,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072380067] [2021-11-13 18:27:27,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072380067] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:27,557 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:27,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 18:27:27,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826531249] [2021-11-13 18:27:27,558 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:27,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:27:27,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:27,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:27:27,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:27:27,559 INFO L87 Difference]: Start difference. First operand 2503 states and 3543 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 18:27:32,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:32,562 INFO L93 Difference]: Finished difference Result 3483 states and 4706 transitions. [2021-11-13 18:27:32,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:27:32,563 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 18:27:32,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:32,584 INFO L225 Difference]: With dead ends: 3483 [2021-11-13 18:27:32,584 INFO L226 Difference]: Without dead ends: 3483 [2021-11-13 18:27:32,584 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 18:27:32,585 INFO L933 BasicCegarLoop]: 956 mSDtfsCounter, 2695 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4102.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2699 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.78ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4870.68ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:32,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2699 Valid, 1947 Invalid, 1787 Unknown, 0 Unchecked, 21.78ms Time], IncrementalHoareTripleChecker [43 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 4870.68ms Time] [2021-11-13 18:27:32,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2021-11-13 18:27:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 2499. [2021-11-13 18:27:32,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 1786 states have (on average 1.9518477043673013) internal successors, (3486), 2479 states have internal predecessors, (3486), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 15 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-13 18:27:32,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 3535 transitions. [2021-11-13 18:27:32,656 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 3535 transitions. Word has length 31 [2021-11-13 18:27:32,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:32,656 INFO L470 AbstractCegarLoop]: Abstraction has 2499 states and 3535 transitions. [2021-11-13 18:27:32,657 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 18:27:32,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 3535 transitions. [2021-11-13 18:27:32,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 18:27:32,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:32,658 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 18:27:32,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 18:27:32,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:32,870 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr43REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:32,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:32,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1175213899, now seen corresponding path program 1 times [2021-11-13 18:27:32,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:32,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145412762] [2021-11-13 18:27:32,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:32,871 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:32,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:32,872 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:32,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 18:27:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:33,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 18:27:33,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:33,098 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 18:27:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:27:33,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:33,830 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 18:27:33,830 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:33,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145412762] [2021-11-13 18:27:33,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145412762] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:33,830 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:33,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 18:27:33,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862126385] [2021-11-13 18:27:33,834 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:33,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:27:33,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:33,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:27:33,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:27:33,836 INFO L87 Difference]: Start difference. First operand 2499 states and 3535 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 18:27:46,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:46,878 INFO L93 Difference]: Finished difference Result 3129 states and 4080 transitions. [2021-11-13 18:27:46,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:27:46,880 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 18:27:46,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:46,896 INFO L225 Difference]: With dead ends: 3129 [2021-11-13 18:27:46,897 INFO L226 Difference]: Without dead ends: 3129 [2021-11-13 18:27:46,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:27:46,898 INFO L933 BasicCegarLoop]: 1101 mSDtfsCounter, 1403 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 3411 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11311.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 3431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.48ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12807.26ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:46,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1404 Valid, 3870 Invalid, 3431 Unknown, 0 Unchecked, 22.48ms Time], IncrementalHoareTripleChecker [20 Valid, 3411 Invalid, 0 Unknown, 0 Unchecked, 12807.26ms Time] [2021-11-13 18:27:46,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2021-11-13 18:27:46,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 2495. [2021-11-13 18:27:46,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 1786 states have (on average 1.9473684210526316) internal successors, (3478), 2475 states have internal predecessors, (3478), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 15 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-13 18:27:46,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3527 transitions. [2021-11-13 18:27:46,962 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3527 transitions. Word has length 31 [2021-11-13 18:27:46,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:46,963 INFO L470 AbstractCegarLoop]: Abstraction has 2495 states and 3527 transitions. [2021-11-13 18:27:46,963 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 18:27:46,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3527 transitions. [2021-11-13 18:27:46,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-13 18:27:46,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:46,965 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 18:27:46,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 18:27:47,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:47,180 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr107REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:47,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:47,180 INFO L85 PathProgramCache]: Analyzing trace with hash -415918152, now seen corresponding path program 1 times [2021-11-13 18:27:47,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:47,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884998113] [2021-11-13 18:27:47,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:47,181 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:47,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:47,183 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:47,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 18:27:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:47,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:27:47,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:47,582 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 18:27:47,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:47,706 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 18:27:47,706 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:47,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884998113] [2021-11-13 18:27:47,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884998113] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:47,706 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:47,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 18:27:47,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466854898] [2021-11-13 18:27:47,707 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:47,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:27:47,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:47,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:27:47,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:27:47,708 INFO L87 Difference]: Start difference. First operand 2495 states and 3527 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 18:27:47,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:47,783 INFO L93 Difference]: Finished difference Result 2483 states and 3507 transitions. [2021-11-13 18:27:47,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:27:47,784 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 18:27:47,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:47,800 INFO L225 Difference]: With dead ends: 2483 [2021-11-13 18:27:47,800 INFO L226 Difference]: Without dead ends: 2483 [2021-11-13 18:27:47,801 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 18:27:47,803 INFO L933 BasicCegarLoop]: 1529 mSDtfsCounter, 1458 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.34ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.65ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:47,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1465 Valid, 3114 Invalid, 41 Unknown, 0 Unchecked, 8.34ms Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 39.65ms Time] [2021-11-13 18:27:47,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2021-11-13 18:27:47,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 2483. [2021-11-13 18:27:47,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 1774 states have (on average 1.9492671927846674) internal successors, (3458), 2463 states have internal predecessors, (3458), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 15 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-13 18:27:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3507 transitions. [2021-11-13 18:27:47,883 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3507 transitions. Word has length 46 [2021-11-13 18:27:47,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:47,884 INFO L470 AbstractCegarLoop]: Abstraction has 2483 states and 3507 transitions. [2021-11-13 18:27:47,884 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 18:27:47,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3507 transitions. [2021-11-13 18:27:47,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-13 18:27:47,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:47,892 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 18:27:47,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 18:27:48,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:48,105 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr107REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:48,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:48,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1705163028, now seen corresponding path program 1 times [2021-11-13 18:27:48,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:48,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835696948] [2021-11-13 18:27:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:48,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:48,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:48,108 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:48,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 18:27:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:48,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:27:48,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:48,730 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 18:27:48,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:49,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:27:49,090 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:49,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835696948] [2021-11-13 18:27:49,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835696948] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:49,090 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:49,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 18:27:49,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711339877] [2021-11-13 18:27:49,090 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:49,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:27:49,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:49,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:27:49,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:27:49,091 INFO L87 Difference]: Start difference. First operand 2483 states and 3507 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 18:27:49,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:49,382 INFO L93 Difference]: Finished difference Result 2672 states and 3542 transitions. [2021-11-13 18:27:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:27:49,383 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 18:27:49,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:49,404 INFO L225 Difference]: With dead ends: 2672 [2021-11-13 18:27:49,404 INFO L226 Difference]: Without dead ends: 2672 [2021-11-13 18:27:49,404 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 18:27:49,405 INFO L933 BasicCegarLoop]: 1607 mSDtfsCounter, 455 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.93ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 266.38ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:49,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 3010 Invalid, 99 Unknown, 0 Unchecked, 4.93ms Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 266.38ms Time] [2021-11-13 18:27:49,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2021-11-13 18:27:49,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 2299. [2021-11-13 18:27:49,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1590 states have (on average 1.951572327044025) internal successors, (3103), 2279 states have internal predecessors, (3103), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (24), 15 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-13 18:27:49,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3152 transitions. [2021-11-13 18:27:49,458 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3152 transitions. Word has length 54 [2021-11-13 18:27:49,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:49,460 INFO L470 AbstractCegarLoop]: Abstraction has 2299 states and 3152 transitions. [2021-11-13 18:27:49,460 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 18:27:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3152 transitions. [2021-11-13 18:27:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-13 18:27:49,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:49,462 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 18:27:49,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 18:27:49,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:27:49,675 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr61REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:27:49,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:49,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2040932875, now seen corresponding path program 1 times [2021-11-13 18:27:49,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:27:49,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067533979] [2021-11-13 18:27:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:49,678 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:27:49,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:27:49,679 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:27:49,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 18:27:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:50,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 18:27:50,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:27:50,116 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 18:27:50,122 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 18:27:50,806 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 18:27:50,806 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 18:27:50,814 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 18:27:50,814 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 18:27:50,844 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 18:27:50,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:27:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:27:55,797 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:27:55,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067533979] [2021-11-13 18:27:55,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067533979] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:55,797 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:55,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 18:27:55,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671248114] [2021-11-13 18:27:55,797 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:55,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:27:55,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:27:55,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:27:55,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-13 18:27:55,799 INFO L87 Difference]: Start difference. First operand 2299 states and 3152 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 18:28:04,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:28:04,921 INFO L93 Difference]: Finished difference Result 3005 states and 3792 transitions. [2021-11-13 18:28:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:28:04,924 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 18:28:04,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:28:04,934 INFO L225 Difference]: With dead ends: 3005 [2021-11-13 18:28:04,934 INFO L226 Difference]: Without dead ends: 3005 [2021-11-13 18:28:04,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=19, Invalid=22, Unknown=1, NotChecked=0, Total=42 [2021-11-13 18:28:04,936 INFO L933 BasicCegarLoop]: 1102 mSDtfsCounter, 1855 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7785.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.52ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1710 IncrementalHoareTripleChecker+Unchecked, 8998.25ms IncrementalHoareTripleChecker+Time [2021-11-13 18:28:04,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1862 Valid, 2341 Invalid, 3606 Unknown, 0 Unchecked, 24.52ms Time], IncrementalHoareTripleChecker [99 Valid, 1797 Invalid, 0 Unknown, 1710 Unchecked, 8998.25ms Time] [2021-11-13 18:28:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2021-11-13 18:28:04,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 2394. [2021-11-13 18:28:04,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2394 states, 1717 states have (on average 1.9056493884682586) internal successors, (3272), 2371 states have internal predecessors, (3272), 28 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 18 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-13 18:28:04,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 3327 transitions. [2021-11-13 18:28:04,993 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 3327 transitions. Word has length 57 [2021-11-13 18:28:04,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:28:04,993 INFO L470 AbstractCegarLoop]: Abstraction has 2394 states and 3327 transitions. [2021-11-13 18:28:04,994 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 18:28:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 3327 transitions. [2021-11-13 18:28:04,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-13 18:28:04,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:28:04,995 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 18:28:05,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 18:28:05,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:28:05,209 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr63REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:28:05,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:28:05,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1463571990, now seen corresponding path program 1 times [2021-11-13 18:28:05,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:28:05,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088168005] [2021-11-13 18:28:05,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:28:05,211 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:28:05,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:28:05,212 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:28:05,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 18:28:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:05,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:28:05,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:28:05,740 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 18:28:05,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:28:05,818 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 18:28:06,161 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 18:28:06,161 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:28:06,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088168005] [2021-11-13 18:28:06,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088168005] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:28:06,162 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:28:06,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 18:28:06,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389479259] [2021-11-13 18:28:06,162 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:28:06,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:28:06,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:28:06,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:28:06,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:28:06,163 INFO L87 Difference]: Start difference. First operand 2394 states and 3327 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 18:28:08,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:28:08,594 INFO L93 Difference]: Finished difference Result 2392 states and 3323 transitions. [2021-11-13 18:28:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:28:08,594 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 18:28:08,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:28:08,600 INFO L225 Difference]: With dead ends: 2392 [2021-11-13 18:28:08,600 INFO L226 Difference]: Without dead ends: 2392 [2021-11-13 18:28:08,600 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 18:28:08,601 INFO L933 BasicCegarLoop]: 968 mSDtfsCounter, 2930 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1997.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2936 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.60ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2390.69ms IncrementalHoareTripleChecker+Time [2021-11-13 18:28:08,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2936 Valid, 1886 Invalid, 635 Unknown, 0 Unchecked, 9.60ms Time], IncrementalHoareTripleChecker [41 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 2390.69ms Time] [2021-11-13 18:28:08,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2021-11-13 18:28:08,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2021-11-13 18:28:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 1717 states have (on average 1.9033197437390799) internal successors, (3268), 2369 states have internal predecessors, (3268), 28 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 18 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-13 18:28:08,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3323 transitions. [2021-11-13 18:28:08,645 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3323 transitions. Word has length 59 [2021-11-13 18:28:08,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:28:08,645 INFO L470 AbstractCegarLoop]: Abstraction has 2392 states and 3323 transitions. [2021-11-13 18:28:08,646 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 18:28:08,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3323 transitions. [2021-11-13 18:28:08,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-13 18:28:08,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:28:08,647 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 18:28:08,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 18:28:08,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:28:08,860 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr66REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:28:08,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:28:08,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1234498241, now seen corresponding path program 1 times [2021-11-13 18:28:08,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:28:08,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455834511] [2021-11-13 18:28:08,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:28:08,862 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:28:08,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:28:08,863 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:28:08,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 18:28:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:09,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:28:09,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:28:09,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 18:28:09,261 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 18:28:09,303 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 18:28:09,330 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 18:28:09,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:28:09,467 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 18:28:09,467 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:28:09,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455834511] [2021-11-13 18:28:09,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455834511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:28:09,468 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:28:09,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 18:28:09,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892132934] [2021-11-13 18:28:09,468 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:28:09,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:28:09,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:28:09,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:28:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:28:09,470 INFO L87 Difference]: Start difference. First operand 2392 states and 3323 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 18:28:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:28:14,295 INFO L93 Difference]: Finished difference Result 2391 states and 3321 transitions. [2021-11-13 18:28:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:28:14,296 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 18:28:14,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:28:14,304 INFO L225 Difference]: With dead ends: 2391 [2021-11-13 18:28:14,304 INFO L226 Difference]: Without dead ends: 2391 [2021-11-13 18:28:14,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 3 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 18:28:14,305 INFO L933 BasicCegarLoop]: 1499 mSDtfsCounter, 4 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4038.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.82ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4732.89ms IncrementalHoareTripleChecker+Time [2021-11-13 18:28:14,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3810 Invalid, 2192 Unknown, 0 Unchecked, 12.82ms Time], IncrementalHoareTripleChecker [1 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 4732.89ms Time] [2021-11-13 18:28:14,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2021-11-13 18:28:14,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2391. [2021-11-13 18:28:14,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 1717 states have (on average 1.9021549213744904) internal successors, (3266), 2368 states have internal predecessors, (3266), 28 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 18 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-13 18:28:14,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 3321 transitions. [2021-11-13 18:28:14,350 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 3321 transitions. Word has length 62 [2021-11-13 18:28:14,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:28:14,351 INFO L470 AbstractCegarLoop]: Abstraction has 2391 states and 3321 transitions. [2021-11-13 18:28:14,351 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 18:28:14,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 3321 transitions. [2021-11-13 18:28:14,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-13 18:28:14,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:28:14,352 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 18:28:14,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-13 18:28:14,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:28:14,571 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr67REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:28:14,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:28:14,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1234498240, now seen corresponding path program 1 times [2021-11-13 18:28:14,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:28:14,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479071207] [2021-11-13 18:28:14,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:28:14,572 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:28:14,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:28:14,574 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:28:14,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 18:28:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:14,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:28:14,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:28:14,915 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 18:28:14,939 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 18:28:14,949 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 18:28:15,022 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 18:28:15,026 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 18:28:15,055 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 18:28:15,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:28:15,444 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 18:28:15,444 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:28:15,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479071207] [2021-11-13 18:28:15,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479071207] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:28:15,444 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:28:15,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-13 18:28:15,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28081859] [2021-11-13 18:28:15,445 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:28:15,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:28:15,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:28:15,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:28:15,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:28:15,446 INFO L87 Difference]: Start difference. First operand 2391 states and 3321 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 18:28:31,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:28:31,549 INFO L93 Difference]: Finished difference Result 2390 states and 3319 transitions. [2021-11-13 18:28:31,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:28:31,550 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 18:28:31,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:28:31,556 INFO L225 Difference]: With dead ends: 2390 [2021-11-13 18:28:31,556 INFO L226 Difference]: Without dead ends: 2390 [2021-11-13 18:28:31,556 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 18:28:31,557 INFO L933 BasicCegarLoop]: 1499 mSDtfsCounter, 2 mSDsluCounter, 3761 mSDsCounter, 0 mSdLazyCounter, 3736 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14181.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5260 SdHoareTripleChecker+Invalid, 3738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.88ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15952.89ms IncrementalHoareTripleChecker+Time [2021-11-13 18:28:31,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5260 Invalid, 3738 Unknown, 0 Unchecked, 23.88ms Time], IncrementalHoareTripleChecker [2 Valid, 3736 Invalid, 0 Unknown, 0 Unchecked, 15952.89ms Time] [2021-11-13 18:28:31,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2021-11-13 18:28:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2390. [2021-11-13 18:28:31,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2390 states, 1715 states have (on average 1.9032069970845482) internal successors, (3264), 2367 states have internal predecessors, (3264), 28 states have call successors, (28), 5 states have call predecessors, (28), 4 states have return successors, (27), 18 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-13 18:28:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2390 states to 2390 states and 3319 transitions. [2021-11-13 18:28:31,599 INFO L78 Accepts]: Start accepts. Automaton has 2390 states and 3319 transitions. Word has length 62 [2021-11-13 18:28:31,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:28:31,599 INFO L470 AbstractCegarLoop]: Abstraction has 2390 states and 3319 transitions. [2021-11-13 18:28:31,600 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 18:28:31,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2390 states and 3319 transitions. [2021-11-13 18:28:31,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-13 18:28:31,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:28:31,601 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 18:28:31,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 18:28:31,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:28:31,816 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:28:31,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:28:31,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1329357862, now seen corresponding path program 1 times [2021-11-13 18:28:31,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:28:31,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513021446] [2021-11-13 18:28:31,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:28:31,818 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:28:31,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:28:31,819 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:28:31,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 18:28:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:32,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 18:28:32,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:28:32,321 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 18:28:32,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:28:32,481 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 18:28:32,481 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:28:32,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513021446] [2021-11-13 18:28:32,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513021446] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:28:32,481 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:28:32,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 18:28:32,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736306932] [2021-11-13 18:28:32,482 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:28:32,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:28:32,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:28:32,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:28:32,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:28:32,484 INFO L87 Difference]: Start difference. First operand 2390 states and 3319 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 18:28:32,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:28:32,626 INFO L93 Difference]: Finished difference Result 2400 states and 3336 transitions. [2021-11-13 18:28:32,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:28:32,627 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 18:28:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:28:32,634 INFO L225 Difference]: With dead ends: 2400 [2021-11-13 18:28:32,635 INFO L226 Difference]: Without dead ends: 2400 [2021-11-13 18:28:32,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:28:32,636 INFO L933 BasicCegarLoop]: 1497 mSDtfsCounter, 11 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.62ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.79ms IncrementalHoareTripleChecker+Time [2021-11-13 18:28:32,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 2994 Invalid, 47 Unknown, 0 Unchecked, 2.62ms Time], IncrementalHoareTripleChecker [14 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 103.79ms Time] [2021-11-13 18:28:32,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2400 states. [2021-11-13 18:28:32,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2400 to 2400. [2021-11-13 18:28:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2400 states, 1723 states have (on average 1.901334881021474) internal successors, (3276), 2376 states have internal predecessors, (3276), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (32), 18 states have call predecessors, (32), 27 states have call successors, (32) [2021-11-13 18:28:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 3336 transitions. [2021-11-13 18:28:32,701 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 3336 transitions. Word has length 70 [2021-11-13 18:28:32,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:28:32,702 INFO L470 AbstractCegarLoop]: Abstraction has 2400 states and 3336 transitions. [2021-11-13 18:28:32,702 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 18:28:32,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 3336 transitions. [2021-11-13 18:28:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 18:28:32,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:28:32,704 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 18:28:32,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 18:28:32,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:28:32,919 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:28:32,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:28:32,919 INFO L85 PathProgramCache]: Analyzing trace with hash 460494822, now seen corresponding path program 1 times [2021-11-13 18:28:32,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:28:32,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884440484] [2021-11-13 18:28:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:28:32,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:28:32,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:28:32,922 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:28:32,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 18:28:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:28:33,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 18:28:33,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:28:33,336 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 18:28:33,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:28:33,622 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 18:28:33,623 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:28:33,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884440484] [2021-11-13 18:28:33,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884440484] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:28:33,623 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:28:33,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-13 18:28:33,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593069357] [2021-11-13 18:28:33,624 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:28:33,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 18:28:33,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:28:33,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 18:28:33,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:28:33,626 INFO L87 Difference]: Start difference. First operand 2400 states and 3336 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 18:28:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:28:34,119 INFO L93 Difference]: Finished difference Result 2414 states and 3362 transitions. [2021-11-13 18:28:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 18:28:34,120 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 18:28:34,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:28:34,127 INFO L225 Difference]: With dead ends: 2414 [2021-11-13 18:28:34,127 INFO L226 Difference]: Without dead ends: 2410 [2021-11-13 18:28:34,127 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 18:28:34,128 INFO L933 BasicCegarLoop]: 1499 mSDtfsCounter, 29 mSDsluCounter, 4485 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 214.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 5984 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.09ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 249.86ms IncrementalHoareTripleChecker+Time [2021-11-13 18:28:34,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 5984 Invalid, 133 Unknown, 0 Unchecked, 5.09ms Time], IncrementalHoareTripleChecker [27 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 249.86ms Time] [2021-11-13 18:28:34,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2021-11-13 18:28:34,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2406. [2021-11-13 18:28:34,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 1729 states have (on average 1.8993637941006363) internal successors, (3284), 2382 states have internal predecessors, (3284), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (32), 18 states have call predecessors, (32), 27 states have call successors, (32) [2021-11-13 18:28:34,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3344 transitions. [2021-11-13 18:28:34,193 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3344 transitions. Word has length 72 [2021-11-13 18:28:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:28:34,194 INFO L470 AbstractCegarLoop]: Abstraction has 2406 states and 3344 transitions. [2021-11-13 18:28:34,194 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 18:28:34,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3344 transitions. [2021-11-13 18:28:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-13 18:28:34,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:28:34,195 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 18:28:34,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-13 18:28:34,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:28:34,408 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:28:34,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:28:34,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1298214758, now seen corresponding path program 2 times [2021-11-13 18:28:34,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:28:34,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960691361] [2021-11-13 18:28:34,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 18:28:34,410 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:28:34,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:28:34,411 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:28:34,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 18:28:34,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 18:28:34,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:28:34,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 18:28:34,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:28:35,109 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 18:28:35,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:28:35,658 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 18:28:35,658 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:28:35,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960691361] [2021-11-13 18:28:35,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960691361] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:28:35,658 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:28:35,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-13 18:28:35,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586268071] [2021-11-13 18:28:35,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:28:35,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-13 18:28:35,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:28:35,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-13 18:28:35,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:28:35,660 INFO L87 Difference]: Start difference. First operand 2406 states and 3344 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 18:28:37,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:28:37,375 INFO L93 Difference]: Finished difference Result 2434 states and 3406 transitions. [2021-11-13 18:28:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-13 18:28:37,387 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 18:28:37,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:28:37,394 INFO L225 Difference]: With dead ends: 2434 [2021-11-13 18:28:37,394 INFO L226 Difference]: Without dead ends: 2430 [2021-11-13 18:28:37,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=457, Invalid=949, Unknown=0, NotChecked=0, Total=1406 [2021-11-13 18:28:37,396 INFO L933 BasicCegarLoop]: 1503 mSDtfsCounter, 66 mSDsluCounter, 11979 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 727.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 13482 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.89ms SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 832.63ms IncrementalHoareTripleChecker+Time [2021-11-13 18:28:37,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 13482 Invalid, 459 Unknown, 0 Unchecked, 13.89ms Time], IncrementalHoareTripleChecker [69 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 832.63ms Time] [2021-11-13 18:28:37,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2021-11-13 18:28:37,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2418. [2021-11-13 18:28:37,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1741 states have (on average 1.8954623779437105) internal successors, (3300), 2394 states have internal predecessors, (3300), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (32), 18 states have call predecessors, (32), 27 states have call successors, (32) [2021-11-13 18:28:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3360 transitions. [2021-11-13 18:28:37,448 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3360 transitions. Word has length 76 [2021-11-13 18:28:37,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:28:37,448 INFO L470 AbstractCegarLoop]: Abstraction has 2418 states and 3360 transitions. [2021-11-13 18:28:37,448 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 18:28:37,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3360 transitions. [2021-11-13 18:28:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 18:28:37,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:28:37,449 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 18:28:37,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-13 18:28:37,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:28:37,662 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:28:37,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:28:37,663 INFO L85 PathProgramCache]: Analyzing trace with hash 316087910, now seen corresponding path program 3 times [2021-11-13 18:28:37,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:28:37,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418894588] [2021-11-13 18:28:37,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 18:28:37,663 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:28:37,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:28:37,664 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:28:37,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-13 18:28:38,361 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-13 18:28:38,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:28:38,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 18:28:38,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:28:38,877 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 18:28:38,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:28:40,528 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 18:28:40,529 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:28:40,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418894588] [2021-11-13 18:28:40,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418894588] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:28:40,529 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:28:40,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-13 18:28:40,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561006755] [2021-11-13 18:28:40,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:28:40,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-13 18:28:40,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:28:40,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-13 18:28:40,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-11-13 18:28:40,532 INFO L87 Difference]: Start difference. First operand 2418 states and 3360 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 18:28:50,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:28:50,710 INFO L93 Difference]: Finished difference Result 2474 states and 3524 transitions. [2021-11-13 18:28:50,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-13 18:28:50,711 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 18:28:50,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:28:50,718 INFO L225 Difference]: With dead ends: 2474 [2021-11-13 18:28:50,719 INFO L226 Difference]: Without dead ends: 2468 [2021-11-13 18:28:50,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=1377, Invalid=2783, Unknown=0, NotChecked=0, Total=4160 [2021-11-13 18:28:50,722 INFO L933 BasicCegarLoop]: 1509 mSDtfsCounter, 230 mSDsluCounter, 22559 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2948.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 24068 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.26ms SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3356.28ms IncrementalHoareTripleChecker+Time [2021-11-13 18:28:50,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 24068 Invalid, 1802 Unknown, 0 Unchecked, 28.26ms Time], IncrementalHoareTripleChecker [201 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 3356.28ms Time] [2021-11-13 18:28:50,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2021-11-13 18:28:50,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2442. [2021-11-13 18:28:50,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 1765 states have (on average 1.8872521246458924) internal successors, (3331), 2418 states have internal predecessors, (3331), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (32), 18 states have call predecessors, (32), 27 states have call successors, (32) [2021-11-13 18:28:50,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3391 transitions. [2021-11-13 18:28:50,775 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3391 transitions. Word has length 84 [2021-11-13 18:28:50,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:28:50,775 INFO L470 AbstractCegarLoop]: Abstraction has 2442 states and 3391 transitions. [2021-11-13 18:28:50,775 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 18:28:50,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3391 transitions. [2021-11-13 18:28:50,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-13 18:28:50,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:28:50,777 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 18:28:50,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-13 18:28:50,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:28:50,994 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:28:50,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:28:50,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1218837606, now seen corresponding path program 4 times [2021-11-13 18:28:50,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:28:50,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117014248] [2021-11-13 18:28:50,996 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 18:28:50,996 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:28:50,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:28:50,997 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:28:51,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-13 18:28:51,458 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 18:28:51,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:28:51,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-13 18:28:51,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:28:52,710 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 18:28:52,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:28:56,506 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 18:28:56,506 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:28:56,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117014248] [2021-11-13 18:28:56,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117014248] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:28:56,506 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:28:56,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2021-11-13 18:28:56,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002457184] [2021-11-13 18:28:56,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 18:28:56,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-13 18:28:56,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:28:56,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-13 18:28:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=3290, Unknown=0, NotChecked=0, Total=4290 [2021-11-13 18:28:56,521 INFO L87 Difference]: Start difference. First operand 2442 states and 3391 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 18:29:12,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:29:12,641 INFO L93 Difference]: Finished difference Result 2534 states and 3627 transitions. [2021-11-13 18:29:12,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-11-13 18:29:12,642 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 18:29:12,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:29:12,646 INFO L225 Difference]: With dead ends: 2534 [2021-11-13 18:29:12,647 INFO L226 Difference]: Without dead ends: 2530 [2021-11-13 18:29:12,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2313 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=4503, Invalid=14679, Unknown=0, NotChecked=0, Total=19182 [2021-11-13 18:29:12,654 INFO L933 BasicCegarLoop]: 1526 mSDtfsCounter, 322 mSDsluCounter, 47155 mSDsCounter, 0 mSdLazyCounter, 5029 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7945.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 48681 SdHoareTripleChecker+Invalid, 5533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.06ms SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 5029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8983.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:29:12,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 48681 Invalid, 5533 Unknown, 0 Unchecked, 58.06ms Time], IncrementalHoareTripleChecker [504 Valid, 5029 Invalid, 0 Unknown, 0 Unchecked, 8983.00ms Time] [2021-11-13 18:29:12,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2021-11-13 18:29:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2472. [2021-11-13 18:29:12,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 1795 states have (on average 1.8813370473537605) internal successors, (3377), 2448 states have internal predecessors, (3377), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (32), 18 states have call predecessors, (32), 27 states have call successors, (32) [2021-11-13 18:29:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3437 transitions. [2021-11-13 18:29:12,709 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3437 transitions. Word has length 100 [2021-11-13 18:29:12,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:29:12,710 INFO L470 AbstractCegarLoop]: Abstraction has 2472 states and 3437 transitions. [2021-11-13 18:29:12,710 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 18:29:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3437 transitions. [2021-11-13 18:29:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-13 18:29:12,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:29:12,711 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 18:29:12,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-13 18:29:12,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:29:12,934 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr70REQUIRES_VIOLATION === [__VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION (and 847 more)] === [2021-11-13 18:29:12,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:12,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1636743514, now seen corresponding path program 5 times [2021-11-13 18:29:12,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:29:12,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735356425] [2021-11-13 18:29:12,935 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-13 18:29:12,936 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:29:12,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:29:12,936 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:29:12,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8eef81-4cfc-413e-a7d7-a4f35518ae43/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-13 18:29:14,167 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-11-13 18:29:14,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:29:14,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-13 18:29:14,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:29:14,228 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 18:29:14,446 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-13 18:29:14,446 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 20 treesize of output 27 [2021-11-13 18:29:14,503 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 18:29:14,703 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 [2021-11-13 18:38:46,882 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_8 (_ BitVec 1)) (v_arrayElimCell_10 (_ BitVec 32)) (v_main_~user~0.base_BEFORE_CALL_1 (_ BitVec 32))) (let ((.cse0 (bvneg (bvneg (bvneg v_arrayElimCell_8))))) (and (not (= v_arrayElimCell_10 v_main_~user~0.base_BEFORE_CALL_1)) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| v_arrayElimCell_10))) (_ bv1 1))) (= (_ bv0 1) (bvadd .cse0 (_ bv1 1))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_main_~user~0.base_BEFORE_CALL_1))))) (bvneg (bvneg .cse0))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr363_190| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_191| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_183| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_194| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_184| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_195| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_181| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_192| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_182| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_193| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_187| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_188| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_185| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_196| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_186| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr363_189| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_181| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_182| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_183| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_184| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_185| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_186| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_187| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_188| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_189| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_190| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_191| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_192| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_193| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_194| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_195| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr363_196| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false