./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/array01-alloca-2.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_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/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_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/array01-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/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_8b4a080c-5b8a-4f5e-9989-342661f1d371/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 c01598788c0e593641b4d52eb46aec8832108f2ffb3b67e30286093c8a1926f8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:31:59,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:31:59,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:31:59,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:31:59,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:31:59,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:31:59,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:31:59,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:31:59,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:31:59,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:31:59,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:31:59,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:31:59,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:31:59,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:31:59,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:31:59,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:31:59,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:31:59,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:31:59,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:31:59,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:31:59,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:31:59,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:31:59,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:31:59,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:31:59,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:31:59,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:31:59,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:31:59,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:31:59,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:31:59,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:31:59,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:31:59,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:31:59,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:31:59,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:31:59,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:31:59,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:31:59,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:31:59,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:31:59,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:31:59,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:31:59,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:31:59,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-13 17:31:59,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:31:59,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:31:59,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:31:59,241 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:31:59,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:31:59,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:31:59,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:31:59,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:31:59,250 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:31:59,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:31:59,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:31:59,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:31:59,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:31:59,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:31:59,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:31:59,252 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 17:31:59,252 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 17:31:59,253 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 17:31:59,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:31:59,253 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 17:31:59,253 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:31:59,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:31:59,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:31:59,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:31:59,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:31:59,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:31:59,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:31:59,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:31:59,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:31:59,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:31:59,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:31:59,257 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_8b4a080c-5b8a-4f5e-9989-342661f1d371/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c01598788c0e593641b4d52eb46aec8832108f2ffb3b67e30286093c8a1926f8 [2021-11-13 17:31:59,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:31:59,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:31:59,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:31:59,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:31:59,596 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:31:59,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2021-11-13 17:31:59,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data/b365906ed/7d6043d95c104e5ba90c4a5bc33f847e/FLAGe82a65951 [2021-11-13 17:32:00,183 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:32:00,184 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2021-11-13 17:32:00,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data/b365906ed/7d6043d95c104e5ba90c4a5bc33f847e/FLAGe82a65951 [2021-11-13 17:32:00,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data/b365906ed/7d6043d95c104e5ba90c4a5bc33f847e [2021-11-13 17:32:00,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:32:00,483 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 17:32:00,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:32:00,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:32:00,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:32:00,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:32:00" (1/1) ... [2021-11-13 17:32:00,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea9535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:00, skipping insertion in model container [2021-11-13 17:32:00,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:32:00" (1/1) ... [2021-11-13 17:32:00,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:32:00,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:32:00,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:32:00,826 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-13 17:32:00,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@68e6377b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:00, skipping insertion in model container [2021-11-13 17:32:00,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:32:00,827 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-13 17:32:00,829 INFO L158 Benchmark]: Toolchain (without parser) took 344.81ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 93.1MB in the end (delta: -15.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:32:00,830 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:32:00,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.91ms. Allocated memory is still 119.5MB. Free memory was 77.5MB in the beginning and 93.1MB in the end (delta: -15.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:32:00,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.91ms. Allocated memory is still 119.5MB. Free memory was 77.5MB in the beginning and 93.1MB in the end (delta: -15.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 529]: 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_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/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_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/array01-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/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_8b4a080c-5b8a-4f5e-9989-342661f1d371/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 c01598788c0e593641b4d52eb46aec8832108f2ffb3b67e30286093c8a1926f8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:32:03,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:32:03,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:32:03,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:32:03,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:32:03,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:32:03,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:32:03,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:32:03,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:32:03,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:32:03,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:32:03,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:32:03,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:32:03,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:32:03,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:32:03,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:32:03,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:32:03,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:32:03,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:32:03,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:32:03,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:32:03,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:32:03,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:32:03,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:32:03,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:32:03,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:32:03,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:32:03,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:32:03,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:32:03,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:32:03,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:32:03,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:32:03,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:32:03,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:32:03,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:32:03,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:32:03,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:32:03,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:32:03,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:32:03,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:32:03,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:32:03,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-13 17:32:03,298 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:32:03,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:32:03,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:32:03,299 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:32:03,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:32:03,300 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:32:03,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:32:03,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:32:03,302 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:32:03,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:32:03,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:32:03,304 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:32:03,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:32:03,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:32:03,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:32:03,305 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 17:32:03,305 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 17:32:03,305 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 17:32:03,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:32:03,306 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 17:32:03,306 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 17:32:03,306 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 17:32:03,306 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:32:03,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:32:03,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:32:03,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:32:03,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:32:03,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:32:03,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:32:03,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:32:03,308 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 17:32:03,309 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 17:32:03,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:32:03,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 17:32:03,309 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_8b4a080c-5b8a-4f5e-9989-342661f1d371/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c01598788c0e593641b4d52eb46aec8832108f2ffb3b67e30286093c8a1926f8 [2021-11-13 17:32:03,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:32:03,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:32:03,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:32:03,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:32:03,702 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:32:03,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2021-11-13 17:32:03,772 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data/8ab4de2a9/b446b2d2e13640e3b64ae22d8fc0393c/FLAG5c2549f98 [2021-11-13 17:32:04,281 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:32:04,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2021-11-13 17:32:04,297 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data/8ab4de2a9/b446b2d2e13640e3b64ae22d8fc0393c/FLAG5c2549f98 [2021-11-13 17:32:04,616 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/data/8ab4de2a9/b446b2d2e13640e3b64ae22d8fc0393c [2021-11-13 17:32:04,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:32:04,619 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-13 17:32:04,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:32:04,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:32:04,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:32:04,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:32:04" (1/1) ... [2021-11-13 17:32:04,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cf6ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:04, skipping insertion in model container [2021-11-13 17:32:04,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:32:04" (1/1) ... [2021-11-13 17:32:04,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:32:04,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:32:05,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:32:05,079 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 17:32:05,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:32:05,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:32:05,143 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:32:05,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:32:05,238 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:32:05,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05 WrapperNode [2021-11-13 17:32:05,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:32:05,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:32:05,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:32:05,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:32:05,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05" (1/1) ... [2021-11-13 17:32:05,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05" (1/1) ... [2021-11-13 17:32:05,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05" (1/1) ... [2021-11-13 17:32:05,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05" (1/1) ... [2021-11-13 17:32:05,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05" (1/1) ... [2021-11-13 17:32:05,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05" (1/1) ... [2021-11-13 17:32:05,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05" (1/1) ... [2021-11-13 17:32:05,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:32:05,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:32:05,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:32:05,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:32:05,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05" (1/1) ... [2021-11-13 17:32:05,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:32:05,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:32:05,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:32:05,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:32:05,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-13 17:32:05,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:32:05,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 17:32:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-13 17:32:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-13 17:32:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-13 17:32:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-13 17:32:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-13 17:32:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2021-11-13 17:32:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-13 17:32:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-13 17:32:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-13 17:32:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-13 17:32:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-13 17:32:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-13 17:32:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-13 17:32:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-13 17:32:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-13 17:32:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-13 17:32:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-13 17:32:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-13 17:32:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-13 17:32:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-13 17:32:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-13 17:32:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-13 17:32:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-13 17:32:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-13 17:32:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-13 17:32:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-13 17:32:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-13 17:32:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-13 17:32:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-13 17:32:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-13 17:32:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-13 17:32:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-13 17:32:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-13 17:32:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-13 17:32:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-13 17:32:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-13 17:32:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-13 17:32:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-13 17:32:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-13 17:32:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-13 17:32:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-13 17:32:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-13 17:32:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-13 17:32:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-13 17:32:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-13 17:32:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-13 17:32:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-13 17:32:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-13 17:32:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-13 17:32:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-13 17:32:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-13 17:32:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-13 17:32:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-13 17:32:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-13 17:32:05,463 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-13 17:32:05,463 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-13 17:32:05,463 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-13 17:32:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-13 17:32:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-13 17:32:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-13 17:32:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-13 17:32:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-13 17:32:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-13 17:32:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-13 17:32:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-13 17:32:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-13 17:32:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-13 17:32:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-13 17:32:05,468 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-13 17:32:05,468 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-13 17:32:05,468 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-13 17:32:05,468 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-13 17:32:05,468 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-13 17:32:05,468 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-13 17:32:05,468 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-13 17:32:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-13 17:32:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-13 17:32:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-13 17:32:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-13 17:32:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-13 17:32:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-13 17:32:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-13 17:32:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-13 17:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-13 17:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-13 17:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-13 17:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-13 17:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-13 17:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-13 17:32:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-13 17:32:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-13 17:32:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-13 17:32:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-13 17:32:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-13 17:32:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-13 17:32:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-13 17:32:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-13 17:32:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-13 17:32:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-13 17:32:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-13 17:32:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-13 17:32:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-13 17:32:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-13 17:32:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-13 17:32:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-13 17:32:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-13 17:32:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-13 17:32:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-13 17:32:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-13 17:32:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-13 17:32:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-13 17:32:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-13 17:32:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-13 17:32:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-13 17:32:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-13 17:32:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2021-11-13 17:32:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 17:32:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 17:32:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-13 17:32:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:32:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:32:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-13 17:32:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:32:05,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-13 17:32:06,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:32:06,058 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 17:32:06,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:32:06 BoogieIcfgContainer [2021-11-13 17:32:06,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:32:06,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:32:06,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:32:06,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:32:06,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:32:04" (1/3) ... [2021-11-13 17:32:06,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3917dc4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:32:06, skipping insertion in model container [2021-11-13 17:32:06,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:32:05" (2/3) ... [2021-11-13 17:32:06,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3917dc4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:32:06, skipping insertion in model container [2021-11-13 17:32:06,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:32:06" (3/3) ... [2021-11-13 17:32:06,069 INFO L111 eAbstractionObserver]: Analyzing ICFG array01-alloca-2.i [2021-11-13 17:32:06,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:32:06,075 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-13 17:32:06,120 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:32:06,127 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:32:06,127 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-13 17:32:06,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:32:06,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 17:32:06,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:06,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:06,158 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:06,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:06,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1920451558, now seen corresponding path program 1 times [2021-11-13 17:32:06,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:06,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449300809] [2021-11-13 17:32:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:06,181 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:06,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:06,188 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:06,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 17:32:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:06,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:32:06,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:06,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 17:32:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:06,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:06,804 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:06,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449300809] [2021-11-13 17:32:06,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449300809] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:32:06,805 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:32:06,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-13 17:32:06,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743685811] [2021-11-13 17:32:06,808 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:32:06,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:32:06,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:06,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:32:06,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:32:06,851 INFO L87 Difference]: Start difference. First operand has 39 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:07,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:07,356 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2021-11-13 17:32:07,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:32:07,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-13 17:32:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:07,364 INFO L225 Difference]: With dead ends: 64 [2021-11-13 17:32:07,365 INFO L226 Difference]: Without dead ends: 59 [2021-11-13 17:32:07,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:32:07,370 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 41 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 269.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.27ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 317.03ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:07,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 169 Invalid, 60 Unknown, 0 Unchecked, 5.27ms Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 317.03ms Time] [2021-11-13 17:32:07,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-13 17:32:07,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 40. [2021-11-13 17:32:07,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 34 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:32:07,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2021-11-13 17:32:07,409 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 10 [2021-11-13 17:32:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:07,410 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2021-11-13 17:32:07,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2021-11-13 17:32:07,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 17:32:07,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:07,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:07,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:07,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:07,620 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:07,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:07,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1920451559, now seen corresponding path program 1 times [2021-11-13 17:32:07,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:07,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133954662] [2021-11-13 17:32:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:07,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:07,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:07,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:07,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 17:32:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:07,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 17:32:07,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:07,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 17:32:07,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:07,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:07,810 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:07,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133954662] [2021-11-13 17:32:07,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133954662] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:32:07,811 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:32:07,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 17:32:07,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504006267] [2021-11-13 17:32:07,813 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:32:07,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:32:07,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:07,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:32:07,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:32:07,815 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:07,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:07,883 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2021-11-13 17:32:07,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:32:07,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-13 17:32:07,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:07,884 INFO L225 Difference]: With dead ends: 39 [2021-11-13 17:32:07,884 INFO L226 Difference]: Without dead ends: 39 [2021-11-13 17:32:07,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:32:07,886 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 5 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.59ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:07,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 55 Invalid, 13 Unknown, 0 Unchecked, 2.43ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 59.59ms Time] [2021-11-13 17:32:07,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-13 17:32:07,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-13 17:32:07,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 33 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:32:07,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2021-11-13 17:32:07,894 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 10 [2021-11-13 17:32:07,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:07,895 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-11-13 17:32:07,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2021-11-13 17:32:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 17:32:07,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:07,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:07,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:08,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:08,107 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting test_funErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:08,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:08,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1433090221, now seen corresponding path program 1 times [2021-11-13 17:32:08,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:08,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048215834] [2021-11-13 17:32:08,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:08,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:08,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:08,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:08,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 17:32:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:08,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:32:08,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:08,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 17:32:08,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:08,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:08,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:08,388 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:08,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048215834] [2021-11-13 17:32:08,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048215834] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:32:08,389 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:32:08,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-13 17:32:08,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703075427] [2021-11-13 17:32:08,389 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:32:08,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:32:08,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:08,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:32:08,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:32:08,394 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:08,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:08,538 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2021-11-13 17:32:08,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:32:08,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-11-13 17:32:08,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:08,540 INFO L225 Difference]: With dead ends: 36 [2021-11-13 17:32:08,540 INFO L226 Difference]: Without dead ends: 36 [2021-11-13 17:32:08,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:32:08,542 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 35 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.72ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.17ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:08,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 62 Invalid, 39 Unknown, 0 Unchecked, 2.72ms Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 120.17ms Time] [2021-11-13 17:32:08,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-13 17:32:08,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-13 17:32:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 30 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:32:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2021-11-13 17:32:08,547 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 13 [2021-11-13 17:32:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:08,547 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-11-13 17:32:08,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2021-11-13 17:32:08,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 17:32:08,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:08,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:08,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:08,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:08,772 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:08,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:08,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1433090220, now seen corresponding path program 1 times [2021-11-13 17:32:08,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:08,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282322111] [2021-11-13 17:32:08,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:08,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:08,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:08,778 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:08,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 17:32:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:08,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 17:32:08,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:08,913 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 17 treesize of output 16 [2021-11-13 17:32:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:09,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:09,532 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:09,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282322111] [2021-11-13 17:32:09,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282322111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:32:09,532 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:32:09,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-13 17:32:09,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340708630] [2021-11-13 17:32:09,533 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:32:09,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:32:09,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:09,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:32:09,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:32:09,535 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:09,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:09,708 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2021-11-13 17:32:09,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 17:32:09,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-11-13 17:32:09,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:09,711 INFO L225 Difference]: With dead ends: 43 [2021-11-13 17:32:09,711 INFO L226 Difference]: Without dead ends: 43 [2021-11-13 17:32:09,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:32:09,712 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.52ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 128.28ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:09,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 171 Invalid, 55 Unknown, 0 Unchecked, 1.52ms Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 35 Unchecked, 128.28ms Time] [2021-11-13 17:32:09,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-13 17:32:09,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2021-11-13 17:32:09,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 32 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:32:09,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2021-11-13 17:32:09,719 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 13 [2021-11-13 17:32:09,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:09,720 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2021-11-13 17:32:09,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2021-11-13 17:32:09,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 17:32:09,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:09,722 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:09,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:09,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:09,933 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:09,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:09,934 INFO L85 PathProgramCache]: Analyzing trace with hash -663520419, now seen corresponding path program 1 times [2021-11-13 17:32:09,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:09,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066005558] [2021-11-13 17:32:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:09,935 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:09,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:09,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:09,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 17:32:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:10,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:32:10,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:10,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:10,202 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:10,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066005558] [2021-11-13 17:32:10,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066005558] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:10,203 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:10,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-13 17:32:10,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894193821] [2021-11-13 17:32:10,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:10,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:32:10,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:10,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:32:10,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:32:10,204 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:10,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:10,273 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2021-11-13 17:32:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:32:10,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 14 [2021-11-13 17:32:10,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:10,276 INFO L225 Difference]: With dead ends: 47 [2021-11-13 17:32:10,276 INFO L226 Difference]: Without dead ends: 47 [2021-11-13 17:32:10,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:32:10,277 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 15 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.09ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.69ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:10,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 141 Invalid, 46 Unknown, 0 Unchecked, 1.09ms Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 61.69ms Time] [2021-11-13 17:32:10,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-13 17:32:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2021-11-13 17:32:10,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 36 states have internal predecessors, (42), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:32:10,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2021-11-13 17:32:10,284 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 14 [2021-11-13 17:32:10,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:10,284 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2021-11-13 17:32:10,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:10,285 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2021-11-13 17:32:10,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 17:32:10,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:10,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:10,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:10,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:10,498 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting test_funErr3REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:10,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:10,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1484801333, now seen corresponding path program 1 times [2021-11-13 17:32:10,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:10,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553749400] [2021-11-13 17:32:10,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:10,499 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:10,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:10,500 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:10,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 17:32:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:10,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:32:10,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:10,740 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 17:32:10,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:10,931 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 11 treesize of output 9 [2021-11-13 17:32:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:11,192 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:11,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553749400] [2021-11-13 17:32:11,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553749400] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:32:11,193 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:32:11,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-13 17:32:11,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935651639] [2021-11-13 17:32:11,193 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:32:11,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:32:11,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:11,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:32:11,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:32:11,195 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:11,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:11,568 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2021-11-13 17:32:11,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 17:32:11,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-11-13 17:32:11,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:11,572 INFO L225 Difference]: With dead ends: 62 [2021-11-13 17:32:11,572 INFO L226 Difference]: Without dead ends: 62 [2021-11-13 17:32:11,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-11-13 17:32:11,574 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 81 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 203.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 225.04ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:11,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 110 Invalid, 65 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 225.04ms Time] [2021-11-13 17:32:11,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-13 17:32:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 42. [2021-11-13 17:32:11,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 35 states have internal predecessors, (41), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:32:11,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-11-13 17:32:11,582 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 15 [2021-11-13 17:32:11,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:11,583 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-11-13 17:32:11,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:11,583 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-11-13 17:32:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 17:32:11,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:11,597 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:11,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:11,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:11,800 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:11,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1472867045, now seen corresponding path program 1 times [2021-11-13 17:32:11,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:11,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589566730] [2021-11-13 17:32:11,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:11,801 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:11,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:11,802 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:11,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 17:32:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:11,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 17:32:11,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:11,929 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 8 treesize of output 7 [2021-11-13 17:32:12,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:12,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:12,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:12,604 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:12,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589566730] [2021-11-13 17:32:12,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589566730] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:12,605 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:12,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-11-13 17:32:12,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243110692] [2021-11-13 17:32:12,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:12,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:32:12,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:12,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:32:12,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:32:12,607 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:13,012 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2021-11-13 17:32:13,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:32:13,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 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 14 [2021-11-13 17:32:13,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:13,014 INFO L225 Difference]: With dead ends: 51 [2021-11-13 17:32:13,015 INFO L226 Difference]: Without dead ends: 51 [2021-11-13 17:32:13,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:32:13,016 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 321.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.58ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 356.72ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:13,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 152 Invalid, 83 Unknown, 0 Unchecked, 1.58ms Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 5 Unchecked, 356.72ms Time] [2021-11-13 17:32:13,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-13 17:32:13,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2021-11-13 17:32:13,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.205128205128205) internal successors, (47), 41 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:32:13,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2021-11-13 17:32:13,022 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 14 [2021-11-13 17:32:13,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:13,022 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2021-11-13 17:32:13,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:13,022 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2021-11-13 17:32:13,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 17:32:13,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:13,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:13,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:13,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:13,224 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:13,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:13,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1497422161, now seen corresponding path program 1 times [2021-11-13 17:32:13,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:13,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601212265] [2021-11-13 17:32:13,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:13,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:13,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:13,226 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:13,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 17:32:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:13,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 17:32:13,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:13,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 17:32:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:32:13,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:32:13,818 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:13,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601212265] [2021-11-13 17:32:13,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601212265] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:32:13,818 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:32:13,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-13 17:32:13,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157824085] [2021-11-13 17:32:13,819 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:32:13,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:32:13,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:13,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:32:13,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:32:13,821 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:14,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:14,536 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2021-11-13 17:32:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:32:14,537 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-11-13 17:32:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:14,538 INFO L225 Difference]: With dead ends: 82 [2021-11-13 17:32:14,538 INFO L226 Difference]: Without dead ends: 82 [2021-11-13 17:32:14,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-11-13 17:32:14,539 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 102 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 348.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.38ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 394.67ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:14,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 135 Invalid, 129 Unknown, 0 Unchecked, 2.38ms Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 394.67ms Time] [2021-11-13 17:32:14,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-13 17:32:14,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 48. [2021-11-13 17:32:14,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.225) internal successors, (49), 42 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:32:14,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-11-13 17:32:14,547 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-11-13 17:32:14,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:14,548 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-11-13 17:32:14,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:14,548 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-11-13 17:32:14,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 17:32:14,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:14,549 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] [2021-11-13 17:32:14,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:14,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:14,759 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:14,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:14,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1313569229, now seen corresponding path program 1 times [2021-11-13 17:32:14,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:14,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311532544] [2021-11-13 17:32:14,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:14,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:14,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:14,761 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:14,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 17:32:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:14,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:32:14,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:14,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:32:14,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:32:15,038 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:15,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311532544] [2021-11-13 17:32:15,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311532544] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:32:15,038 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:32:15,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 17:32:15,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316840042] [2021-11-13 17:32:15,039 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:32:15,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:32:15,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:15,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:32:15,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:32:15,040 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:32:15,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:15,134 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2021-11-13 17:32:15,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:32:15,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2021-11-13 17:32:15,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:15,136 INFO L225 Difference]: With dead ends: 62 [2021-11-13 17:32:15,136 INFO L226 Difference]: Without dead ends: 59 [2021-11-13 17:32:15,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:32:15,137 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 35 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.96ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.48ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:15,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 101 Invalid, 55 Unknown, 0 Unchecked, 0.96ms Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 81.48ms Time] [2021-11-13 17:32:15,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-13 17:32:15,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2021-11-13 17:32:15,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.2) internal successors, (48), 42 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 17:32:15,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2021-11-13 17:32:15,143 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 21 [2021-11-13 17:32:15,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:15,143 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-11-13 17:32:15,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:32:15,143 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2021-11-13 17:32:15,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 17:32:15,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:15,145 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] [2021-11-13 17:32:15,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:15,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:15,355 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:15,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:15,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1349011394, now seen corresponding path program 1 times [2021-11-13 17:32:15,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:15,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278299972] [2021-11-13 17:32:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:15,357 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:15,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:15,357 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:15,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 17:32:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:15,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 17:32:15,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:32:15,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:32:15,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:15,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278299972] [2021-11-13 17:32:15,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278299972] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:15,617 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:15,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-13 17:32:15,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680988108] [2021-11-13 17:32:15,617 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:15,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 17:32:15,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:15,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 17:32:15,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:32:15,619 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:15,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:15,732 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2021-11-13 17:32:15,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:32:15,733 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-11-13 17:32:15,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:15,734 INFO L225 Difference]: With dead ends: 65 [2021-11-13 17:32:15,734 INFO L226 Difference]: Without dead ends: 65 [2021-11-13 17:32:15,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:32:15,735 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 46 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.31ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.55ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:15,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 119 Invalid, 64 Unknown, 0 Unchecked, 1.31ms Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 87.55ms Time] [2021-11-13 17:32:15,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-13 17:32:15,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2021-11-13 17:32:15,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 55 states have internal predecessors, (61), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:32:15,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2021-11-13 17:32:15,742 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 21 [2021-11-13 17:32:15,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:15,743 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2021-11-13 17:32:15,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:15,743 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2021-11-13 17:32:15,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 17:32:15,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:15,744 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] [2021-11-13 17:32:15,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:15,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:15,948 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:15,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:15,948 INFO L85 PathProgramCache]: Analyzing trace with hash 69147716, now seen corresponding path program 1 times [2021-11-13 17:32:15,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:15,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71761136] [2021-11-13 17:32:15,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:15,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:15,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:15,950 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:15,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 17:32:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:16,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 17:32:16,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:16,076 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 8 treesize of output 7 [2021-11-13 17:32:16,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:32:16,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 17:32:17,433 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:17,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71761136] [2021-11-13 17:32:17,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71761136] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:17,433 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:17,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-11-13 17:32:17,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950463425] [2021-11-13 17:32:17,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:17,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 17:32:17,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 17:32:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-13 17:32:17,435 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:18,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:18,371 INFO L93 Difference]: Finished difference Result 86 states and 97 transitions. [2021-11-13 17:32:18,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 17:32:18,372 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-11-13 17:32:18,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:18,373 INFO L225 Difference]: With dead ends: 86 [2021-11-13 17:32:18,373 INFO L226 Difference]: Without dead ends: 86 [2021-11-13 17:32:18,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-13 17:32:18,374 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 96 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 441.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.77ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 483.23ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:18,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 134 Invalid, 133 Unknown, 0 Unchecked, 1.77ms Time], IncrementalHoareTripleChecker [16 Valid, 111 Invalid, 0 Unknown, 6 Unchecked, 483.23ms Time] [2021-11-13 17:32:18,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-13 17:32:18,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 78. [2021-11-13 17:32:18,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 71 states have internal predecessors, (81), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:32:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2021-11-13 17:32:18,381 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 21 [2021-11-13 17:32:18,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:18,381 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2021-11-13 17:32:18,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2021-11-13 17:32:18,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 17:32:18,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:18,383 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:18,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:18,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:18,594 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:18,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:18,594 INFO L85 PathProgramCache]: Analyzing trace with hash -912234207, now seen corresponding path program 2 times [2021-11-13 17:32:18,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:18,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507349338] [2021-11-13 17:32:18,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:32:18,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:18,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:18,595 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:18,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 17:32:18,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:32:18,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:32:18,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 17:32:18,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:18,717 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 8 treesize of output 7 [2021-11-13 17:32:19,101 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:19,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:20,147 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:20,147 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:20,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507349338] [2021-11-13 17:32:20,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507349338] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:20,148 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:20,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-11-13 17:32:20,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728576975] [2021-11-13 17:32:20,148 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:20,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 17:32:20,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:20,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 17:32:20,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-11-13 17:32:20,150 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:22,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:22,218 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2021-11-13 17:32:22,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 17:32:22,220 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 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 22 [2021-11-13 17:32:22,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:22,221 INFO L225 Difference]: With dead ends: 114 [2021-11-13 17:32:22,221 INFO L226 Difference]: Without dead ends: 114 [2021-11-13 17:32:22,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:32:22,223 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 76 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 532.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.67ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 581.30ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:22,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 241 Invalid, 225 Unknown, 0 Unchecked, 2.67ms Time], IncrementalHoareTripleChecker [26 Valid, 178 Invalid, 0 Unknown, 21 Unchecked, 581.30ms Time] [2021-11-13 17:32:22,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-13 17:32:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2021-11-13 17:32:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 84 states have (on average 1.2023809523809523) internal successors, (101), 87 states have internal predecessors, (101), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:32:22,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2021-11-13 17:32:22,230 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 22 [2021-11-13 17:32:22,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:22,231 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2021-11-13 17:32:22,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:22,231 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2021-11-13 17:32:22,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 17:32:22,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:22,232 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] [2021-11-13 17:32:22,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:22,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:22,443 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash -846735008, now seen corresponding path program 1 times [2021-11-13 17:32:22,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:22,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137462516] [2021-11-13 17:32:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:32:22,444 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:22,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:22,445 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:22,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 17:32:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:32:22,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 17:32:22,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:22,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 17:32:22,680 INFO L354 Elim1Store]: treesize reduction 16, result has 42.9 percent of original size [2021-11-13 17:32:22,681 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 17:32:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 17:32:22,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:25,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 17:32:25,103 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:25,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137462516] [2021-11-13 17:32:25,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137462516] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:32:25,103 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:32:25,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-11-13 17:32:25,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537335759] [2021-11-13 17:32:25,104 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:32:25,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:32:25,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:25,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:32:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2021-11-13 17:32:25,105 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 17:32:25,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:25,259 INFO L93 Difference]: Finished difference Result 126 states and 147 transitions. [2021-11-13 17:32:25,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-13 17:32:25,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-11-13 17:32:25,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:25,261 INFO L225 Difference]: With dead ends: 126 [2021-11-13 17:32:25,261 INFO L226 Difference]: Without dead ends: 88 [2021-11-13 17:32:25,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2021-11-13 17:32:25,262 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 38 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 102.50ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:25,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 64 Invalid, 94 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [13 Valid, 30 Invalid, 0 Unknown, 51 Unchecked, 102.50ms Time] [2021-11-13 17:32:25,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-13 17:32:25,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 68. [2021-11-13 17:32:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2021-11-13 17:32:25,267 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 25 [2021-11-13 17:32:25,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:25,268 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2021-11-13 17:32:25,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 17:32:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2021-11-13 17:32:25,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 17:32:25,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:25,269 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:25,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:25,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:25,470 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:25,470 INFO L85 PathProgramCache]: Analyzing trace with hash 672413674, now seen corresponding path program 2 times [2021-11-13 17:32:25,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:25,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690587588] [2021-11-13 17:32:25,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:32:25,471 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:25,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:25,472 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:25,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 17:32:25,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:32:25,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:32:25,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 17:32:25,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:25,600 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 8 treesize of output 7 [2021-11-13 17:32:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:32:26,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:28,568 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:28,568 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:28,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690587588] [2021-11-13 17:32:28,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690587588] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:28,568 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:28,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2021-11-13 17:32:28,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212068502] [2021-11-13 17:32:28,569 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:28,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 17:32:28,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:28,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 17:32:28,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-11-13 17:32:28,570 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 19 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:29,378 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2021-11-13 17:32:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:32:29,380 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-11-13 17:32:29,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:29,381 INFO L225 Difference]: With dead ends: 80 [2021-11-13 17:32:29,381 INFO L226 Difference]: Without dead ends: 77 [2021-11-13 17:32:29,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:32:29,382 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 25 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 538.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.94ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 582.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:29,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 176 Invalid, 156 Unknown, 0 Unchecked, 1.94ms Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 37 Unchecked, 582.00ms Time] [2021-11-13 17:32:29,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-13 17:32:29,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2021-11-13 17:32:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 67 states have internal predecessors, (78), 4 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2021-11-13 17:32:29,386 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 29 [2021-11-13 17:32:29,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:29,386 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2021-11-13 17:32:29,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:29,387 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2021-11-13 17:32:29,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-13 17:32:29,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:29,389 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:29,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:29,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:29,600 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:29,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:29,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1197169977, now seen corresponding path program 3 times [2021-11-13 17:32:29,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:29,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882744436] [2021-11-13 17:32:29,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:32:29,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:29,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:29,602 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:29,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 17:32:29,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-13 17:32:29,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:32:29,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-13 17:32:29,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:29,813 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 8 treesize of output 7 [2021-11-13 17:32:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:30,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:33,565 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:33,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882744436] [2021-11-13 17:32:33,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882744436] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:33,566 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:33,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2021-11-13 17:32:33,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612382482] [2021-11-13 17:32:33,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:33,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-13 17:32:33,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-13 17:32:33,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:32:33,568 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 22 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:36,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:36,345 INFO L93 Difference]: Finished difference Result 127 states and 144 transitions. [2021-11-13 17:32:36,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-13 17:32:36,347 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-11-13 17:32:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:36,348 INFO L225 Difference]: With dead ends: 127 [2021-11-13 17:32:36,348 INFO L226 Difference]: Without dead ends: 124 [2021-11-13 17:32:36,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=115, Invalid=697, Unknown=0, NotChecked=0, Total=812 [2021-11-13 17:32:36,350 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 56 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1352.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.79ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 1445.39ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:36,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 305 Invalid, 352 Unknown, 0 Unchecked, 2.79ms Time], IncrementalHoareTripleChecker [10 Valid, 251 Invalid, 0 Unknown, 91 Unchecked, 1445.39ms Time] [2021-11-13 17:32:36,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-13 17:32:36,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 105. [2021-11-13 17:32:36,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 97 states have (on average 1.1855670103092784) internal successors, (115), 98 states have internal predecessors, (115), 5 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:36,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2021-11-13 17:32:36,356 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 33 [2021-11-13 17:32:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:36,356 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2021-11-13 17:32:36,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:36,357 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2021-11-13 17:32:36,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 17:32:36,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:36,358 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:36,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:36,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:36,564 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:36,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:36,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1662670628, now seen corresponding path program 4 times [2021-11-13 17:32:36,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:36,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703683919] [2021-11-13 17:32:36,565 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 17:32:36,565 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:36,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:36,567 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:36,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 17:32:36,693 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 17:32:36,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:32:36,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-13 17:32:36,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:36,729 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 8 treesize of output 7 [2021-11-13 17:32:37,406 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 17:32:37,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:40,134 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 17:32:40,134 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:40,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703683919] [2021-11-13 17:32:40,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703683919] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:40,135 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:40,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-11-13 17:32:40,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510760228] [2021-11-13 17:32:40,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:40,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-13 17:32:40,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:40,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-13 17:32:40,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:32:40,136 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand has 22 states, 21 states have (on average 2.238095238095238) internal successors, (47), 20 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:44,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:32:47,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:32:51,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:32:51,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:32:51,571 INFO L93 Difference]: Finished difference Result 166 states and 189 transitions. [2021-11-13 17:32:51,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-13 17:32:51,572 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.238095238095238) internal successors, (47), 20 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-11-13 17:32:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:32:51,573 INFO L225 Difference]: With dead ends: 166 [2021-11-13 17:32:51,573 INFO L226 Difference]: Without dead ends: 166 [2021-11-13 17:32:51,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2021-11-13 17:32:51,575 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 186 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 23 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8835.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.07ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 8944.53ms IncrementalHoareTripleChecker+Time [2021-11-13 17:32:51,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 268 Invalid, 331 Unknown, 0 Unchecked, 3.07ms Time], IncrementalHoareTripleChecker [23 Valid, 275 Invalid, 3 Unknown, 30 Unchecked, 8944.53ms Time] [2021-11-13 17:32:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-13 17:32:51,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 114. [2021-11-13 17:32:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 106 states have (on average 1.1603773584905661) internal successors, (123), 107 states have internal predecessors, (123), 5 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 129 transitions. [2021-11-13 17:32:51,580 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 129 transitions. Word has length 37 [2021-11-13 17:32:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:32:51,581 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 129 transitions. [2021-11-13 17:32:51,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.238095238095238) internal successors, (47), 20 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:32:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 129 transitions. [2021-11-13 17:32:51,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 17:32:51,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:32:51,583 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:32:51,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-13 17:32:51,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:32:51,794 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:32:51,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:32:51,795 INFO L85 PathProgramCache]: Analyzing trace with hash 277831469, now seen corresponding path program 3 times [2021-11-13 17:32:51,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:32:51,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817467107] [2021-11-13 17:32:51,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:32:51,795 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:32:51,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:32:51,796 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:32:51,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 17:32:51,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-13 17:32:51,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:32:51,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 17:32:51,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:32:51,989 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 8 treesize of output 7 [2021-11-13 17:32:52,735 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:52,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:32:56,334 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:32:56,334 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:32:56,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817467107] [2021-11-13 17:32:56,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817467107] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:32:56,334 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:32:56,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-11-13 17:32:56,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875131346] [2021-11-13 17:32:56,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:32:56,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-13 17:32:56,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:32:56,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-13 17:32:56,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2021-11-13 17:32:56,336 INFO L87 Difference]: Start difference. First operand 114 states and 129 transitions. Second operand has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:06,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:33:15,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:15,026 INFO L93 Difference]: Finished difference Result 157 states and 180 transitions. [2021-11-13 17:33:15,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-13 17:33:15,027 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 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 38 [2021-11-13 17:33:15,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:15,029 INFO L225 Difference]: With dead ends: 157 [2021-11-13 17:33:15,029 INFO L226 Difference]: Without dead ends: 157 [2021-11-13 17:33:15,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=547, Invalid=1259, Unknown=0, NotChecked=0, Total=1806 [2021-11-13 17:33:15,030 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 181 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3365.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.98ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 3514.37ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:15,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 270 Invalid, 529 Unknown, 0 Unchecked, 6.98ms Time], IncrementalHoareTripleChecker [40 Valid, 444 Invalid, 0 Unknown, 45 Unchecked, 3514.37ms Time] [2021-11-13 17:33:15,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-13 17:33:15,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 146. [2021-11-13 17:33:15,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 138 states have (on average 1.181159420289855) internal successors, (163), 139 states have internal predecessors, (163), 5 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 169 transitions. [2021-11-13 17:33:15,036 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 169 transitions. Word has length 38 [2021-11-13 17:33:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:15,037 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 169 transitions. [2021-11-13 17:33:15,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 169 transitions. [2021-11-13 17:33:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-13 17:33:15,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:15,039 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:15,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:15,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:15,250 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:33:15,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1766082377, now seen corresponding path program 1 times [2021-11-13 17:33:15,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:15,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658357769] [2021-11-13 17:33:15,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:33:15,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:15,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:15,252 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:15,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-13 17:33:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:33:15,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 17:33:15,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:15,421 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 8 treesize of output 7 [2021-11-13 17:33:16,139 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 64 proven. 24 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-13 17:33:16,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 17:33:20,382 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:20,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658357769] [2021-11-13 17:33:20,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658357769] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:33:20,382 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:33:20,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 25 [2021-11-13 17:33:20,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941841397] [2021-11-13 17:33:20,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:33:20,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-13 17:33:20,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:20,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-13 17:33:20,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2021-11-13 17:33:20,384 INFO L87 Difference]: Start difference. First operand 146 states and 169 transitions. Second operand has 25 states, 23 states have (on average 3.391304347826087) internal successors, (78), 23 states have internal predecessors, (78), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:23,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:23,113 INFO L93 Difference]: Finished difference Result 197 states and 227 transitions. [2021-11-13 17:33:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-13 17:33:23,115 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.391304347826087) internal successors, (78), 23 states have internal predecessors, (78), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-11-13 17:33:23,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:23,116 INFO L225 Difference]: With dead ends: 197 [2021-11-13 17:33:23,116 INFO L226 Difference]: Without dead ends: 183 [2021-11-13 17:33:23,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=115, Invalid=697, Unknown=0, NotChecked=0, Total=812 [2021-11-13 17:33:23,117 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 55 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1973.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.30ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 2056.77ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:23,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 345 Invalid, 286 Unknown, 0 Unchecked, 2.30ms Time], IncrementalHoareTripleChecker [9 Valid, 211 Invalid, 0 Unknown, 66 Unchecked, 2056.77ms Time] [2021-11-13 17:33:23,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-13 17:33:23,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2021-11-13 17:33:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 166 states have (on average 1.1867469879518073) internal successors, (197), 167 states have internal predecessors, (197), 5 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 203 transitions. [2021-11-13 17:33:23,123 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 203 transitions. Word has length 51 [2021-11-13 17:33:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:23,124 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 203 transitions. [2021-11-13 17:33:23,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.391304347826087) internal successors, (78), 23 states have internal predecessors, (78), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:23,124 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 203 transitions. [2021-11-13 17:33:23,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-13 17:33:23,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:23,125 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:23,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:23,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:23,328 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:33:23,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:23,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1309301338, now seen corresponding path program 2 times [2021-11-13 17:33:23,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:23,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031469918] [2021-11-13 17:33:23,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:33:23,329 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:23,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:23,330 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:23,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-13 17:33:23,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:33:23,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:33:23,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 17:33:23,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:23,503 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 8 treesize of output 7 [2021-11-13 17:33:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 64 proven. 29 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-13 17:33:24,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 17:33:28,681 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:28,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031469918] [2021-11-13 17:33:28,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031469918] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:33:28,681 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:33:28,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 27 [2021-11-13 17:33:28,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874228916] [2021-11-13 17:33:28,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:33:28,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-13 17:33:28,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:28,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-13 17:33:28,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-11-13 17:33:28,683 INFO L87 Difference]: Start difference. First operand 174 states and 203 transitions. Second operand has 27 states, 25 states have (on average 3.44) internal successors, (86), 25 states have internal predecessors, (86), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:36,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:36,100 INFO L93 Difference]: Finished difference Result 340 states and 392 transitions. [2021-11-13 17:33:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-13 17:33:36,101 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.44) internal successors, (86), 25 states have internal predecessors, (86), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2021-11-13 17:33:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:36,103 INFO L225 Difference]: With dead ends: 340 [2021-11-13 17:33:36,104 INFO L226 Difference]: Without dead ends: 324 [2021-11-13 17:33:36,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=151, Invalid=1181, Unknown=0, NotChecked=0, Total=1332 [2021-11-13 17:33:36,105 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 105 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4341.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.12ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 4540.34ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:36,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 533 Invalid, 562 Unknown, 0 Unchecked, 4.12ms Time], IncrementalHoareTripleChecker [16 Valid, 452 Invalid, 0 Unknown, 94 Unchecked, 4540.34ms Time] [2021-11-13 17:33:36,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-13 17:33:36,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 184. [2021-11-13 17:33:36,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 176 states have (on average 1.1875) internal successors, (209), 177 states have internal predecessors, (209), 5 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:36,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 215 transitions. [2021-11-13 17:33:36,112 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 215 transitions. Word has length 55 [2021-11-13 17:33:36,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:36,113 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 215 transitions. [2021-11-13 17:33:36,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.44) internal successors, (86), 25 states have internal predecessors, (86), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:36,113 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 215 transitions. [2021-11-13 17:33:36,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-13 17:33:36,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:36,114 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:36,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:36,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:36,327 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:33:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash 706224387, now seen corresponding path program 5 times [2021-11-13 17:33:36,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:36,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381155509] [2021-11-13 17:33:36,328 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-13 17:33:36,328 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:36,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:36,328 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:36,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-13 17:33:36,531 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-11-13 17:33:36,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:33:36,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-13 17:33:36,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:36,577 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 8 treesize of output 7 [2021-11-13 17:33:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 30 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:37,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:33:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:43,143 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:33:43,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381155509] [2021-11-13 17:33:43,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381155509] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:33:43,143 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:33:43,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2021-11-13 17:33:43,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797288218] [2021-11-13 17:33:43,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:33:43,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-13 17:33:43,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:33:43,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-13 17:33:43,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2021-11-13 17:33:43,146 INFO L87 Difference]: Start difference. First operand 184 states and 215 transitions. Second operand has 34 states, 32 states have (on average 3.21875) internal successors, (103), 32 states have internal predecessors, (103), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:53,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:33:53,050 INFO L93 Difference]: Finished difference Result 275 states and 315 transitions. [2021-11-13 17:33:53,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-13 17:33:53,051 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 3.21875) internal successors, (103), 32 states have internal predecessors, (103), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-11-13 17:33:53,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:33:53,053 INFO L225 Difference]: With dead ends: 275 [2021-11-13 17:33:53,053 INFO L226 Difference]: Without dead ends: 272 [2021-11-13 17:33:53,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=314, Invalid=2136, Unknown=0, NotChecked=0, Total=2450 [2021-11-13 17:33:53,055 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 174 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4474.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.71ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 4699.60ms IncrementalHoareTripleChecker+Time [2021-11-13 17:33:53,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 549 Invalid, 720 Unknown, 0 Unchecked, 3.71ms Time], IncrementalHoareTripleChecker [33 Valid, 577 Invalid, 0 Unknown, 110 Unchecked, 4699.60ms Time] [2021-11-13 17:33:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-13 17:33:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 234. [2021-11-13 17:33:53,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 225 states have (on average 1.1866666666666668) internal successors, (267), 226 states have internal predecessors, (267), 6 states have call successors, (6), 6 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 274 transitions. [2021-11-13 17:33:53,063 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 274 transitions. Word has length 57 [2021-11-13 17:33:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:33:53,064 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 274 transitions. [2021-11-13 17:33:53,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 3.21875) internal successors, (103), 32 states have internal predecessors, (103), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:33:53,064 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 274 transitions. [2021-11-13 17:33:53,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-13 17:33:53,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:33:53,066 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:33:53,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-13 17:33:53,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:33:53,278 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:33:53,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:33:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash -80958387, now seen corresponding path program 6 times [2021-11-13 17:33:53,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:33:53,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644390280] [2021-11-13 17:33:53,279 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-13 17:33:53,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:33:53,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:33:53,281 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:33:53,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-13 17:33:53,506 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-11-13 17:33:53,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:33:53,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-13 17:33:53,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:33:53,537 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 8 treesize of output 7 [2021-11-13 17:33:54,911 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 26 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:33:54,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:34:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:34:02,379 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:34:02,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644390280] [2021-11-13 17:34:02,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644390280] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:34:02,380 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:34:02,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 36 [2021-11-13 17:34:02,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789677055] [2021-11-13 17:34:02,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:34:02,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-13 17:34:02,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:34:02,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-13 17:34:02,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2021-11-13 17:34:02,382 INFO L87 Difference]: Start difference. First operand 234 states and 274 transitions. Second operand has 36 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:34:06,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:34:11,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:11,395 INFO L93 Difference]: Finished difference Result 309 states and 359 transitions. [2021-11-13 17:34:11,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-13 17:34:11,397 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-11-13 17:34:11,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:11,399 INFO L225 Difference]: With dead ends: 309 [2021-11-13 17:34:11,399 INFO L226 Difference]: Without dead ends: 306 [2021-11-13 17:34:11,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=323, Invalid=2329, Unknown=0, NotChecked=0, Total=2652 [2021-11-13 17:34:11,401 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 89 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3158.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.93ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 313 IncrementalHoareTripleChecker+Unchecked, 3346.23ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:11,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 565 Invalid, 752 Unknown, 0 Unchecked, 2.93ms Time], IncrementalHoareTripleChecker [29 Valid, 410 Invalid, 0 Unknown, 313 Unchecked, 3346.23ms Time] [2021-11-13 17:34:11,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-13 17:34:11,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 256. [2021-11-13 17:34:11,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 245 states have (on average 1.1877551020408164) internal successors, (291), 246 states have internal predecessors, (291), 8 states have call successors, (8), 8 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:34:11,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 300 transitions. [2021-11-13 17:34:11,411 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 300 transitions. Word has length 57 [2021-11-13 17:34:11,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:11,411 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 300 transitions. [2021-11-13 17:34:11,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 34 states have internal predecessors, (103), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:34:11,412 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 300 transitions. [2021-11-13 17:34:11,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-13 17:34:11,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:11,414 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:11,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-13 17:34:11,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:34:11,627 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:34:11,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:11,627 INFO L85 PathProgramCache]: Analyzing trace with hash 948030851, now seen corresponding path program 3 times [2021-11-13 17:34:11,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:34:11,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337538871] [2021-11-13 17:34:11,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 17:34:11,628 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:34:11,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:34:11,628 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:34:11,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-13 17:34:11,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-13 17:34:11,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:34:11,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-13 17:34:11,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:34:11,843 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 8 treesize of output 7 [2021-11-13 17:34:13,948 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 88 proven. 15 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-13 17:34:13,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:34:50,185 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-13 17:34:50,185 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:34:50,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337538871] [2021-11-13 17:34:50,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337538871] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:34:50,185 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:34:50,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2021-11-13 17:34:50,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214694047] [2021-11-13 17:34:50,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:34:50,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-13 17:34:50,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:34:50,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-13 17:34:50,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=793, Unknown=2, NotChecked=0, Total=930 [2021-11-13 17:34:50,187 INFO L87 Difference]: Start difference. First operand 256 states and 300 transitions. Second operand has 31 states, 29 states have (on average 3.0) internal successors, (87), 29 states have internal predecessors, (87), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:35:10,065 WARN L227 SmtUtils]: Spent 9.74s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:35:12,321 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse2 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse1 (select |c_#length| c_test_fun_~a.base)) (.cse0 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse2)) (.cse3 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse2)) (.cse4 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse2))) (or (not (bvule .cse0 .cse1)) (not (bvule (bvadd c_test_fun_~a.offset .cse2) .cse3)) (not (bvule .cse4 .cse1)) (let ((.cse5 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse2))) (and (bvule .cse5 .cse1) (bvule .cse0 .cse5))) (not (bvule .cse3 .cse4)))))) (let ((.cse10 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse7 (select |c_#length| c_test_fun_~a.base)) (.cse6 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse10)) (.cse8 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse10))) (or (not (bvule .cse6 .cse7)) (not (bvule .cse8 .cse7)) (let ((.cse9 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse10))) (and (bvule .cse9 .cse7) (bvule .cse6 .cse9))) (not (bvule (bvadd (_ bv4 32) c_test_fun_~a.offset .cse10) .cse8)))))) is different from false [2021-11-13 17:35:14,981 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse3 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse4 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse3)) (.cse0 (bvadd c_test_fun_~a.offset .cse3 (_ bv12 32))) (.cse2 (select |c_#length| c_test_fun_~a.base))) (or (let ((.cse1 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse3))) (and (bvule .cse0 .cse1) (bvule .cse1 .cse2))) (not (bvule (bvadd c_test_fun_~a.offset .cse3) .cse4)) (not (bvule .cse4 .cse2)) (not (bvule .cse0 .cse2))))) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse7 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse6 (select |c_#length| c_test_fun_~a.base)) (.cse5 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse7)) (.cse8 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse7)) (.cse9 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse7))) (or (not (bvule .cse5 .cse6)) (not (bvule (bvadd c_test_fun_~a.offset .cse7) .cse8)) (not (bvule .cse9 .cse6)) (let ((.cse10 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse7))) (and (bvule .cse10 .cse6) (bvule .cse5 .cse10))) (not (bvule .cse8 .cse9))))))) is different from false [2021-11-13 17:36:19,824 WARN L227 SmtUtils]: Spent 52.65s on a formula simplification. DAG size of input: 39 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:36:21,871 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse0 (bvadd c_test_fun_~a.offset .cse3 (_ bv12 32))) (.cse2 (select |c_#length| c_test_fun_~a.base))) (let ((.cse5 (bvule .cse0 .cse2)) (.cse4 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse3))) (and (or (let ((.cse1 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse3))) (and (bvule .cse0 .cse1) (bvule .cse1 .cse2))) (not (bvule (bvadd c_test_fun_~a.offset .cse3) .cse4)) (not (bvule .cse4 .cse2)) (not .cse5)) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse8 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse7 (select |c_#length| c_test_fun_~a.base)) (.cse6 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse8)) (.cse9 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse8)) (.cse10 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse8))) (or (not (bvule .cse6 .cse7)) (not (bvule (bvadd c_test_fun_~a.offset .cse8) .cse9)) (not (bvule .cse10 .cse7)) (let ((.cse11 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse8))) (and (bvule .cse11 .cse7) (bvule .cse6 .cse11))) (not (bvule .cse9 .cse10)))))) (let ((.cse12 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse3))) (or (and .cse5 (bvule .cse12 .cse0)) (not (bvule .cse12 .cse2)) (not (bvule .cse4 .cse12)))))))) is different from false [2021-11-13 17:36:23,933 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse14 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse16 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse14)) (.cse0 (bvadd c_test_fun_~a.offset .cse14 (_ bv12 32))) (.cse1 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse14)) (.cse13 (select |c_#length| c_test_fun_~a.base))) (let ((.cse2 (bvule .cse1 .cse13)) (.cse4 (bvule .cse0 .cse13)) (.cse3 (bvule .cse16 .cse0)) (.cse11 (not (bvule .cse16 .cse13))) (.cse15 (not (bvule (bvadd (_ bv4 32) c_test_fun_~a.offset .cse14) .cse16)))) (and (or (and (bvule .cse0 .cse1) .cse2) (not .cse3) (not .cse4)) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse7 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse6 (select |c_#length| c_test_fun_~a.base)) (.cse5 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse7)) (.cse8 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse7)) (.cse9 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse7))) (or (not (bvule .cse5 .cse6)) (not (bvule (bvadd c_test_fun_~a.offset .cse7) .cse8)) (not (bvule .cse9 .cse6)) (let ((.cse10 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse7))) (and (bvule .cse10 .cse6) (bvule .cse5 .cse10))) (not (bvule .cse8 .cse9)))))) (or (not .cse2) .cse11 (let ((.cse12 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse14))) (and (bvule .cse12 .cse13) (bvule .cse1 .cse12))) .cse15) (or (and .cse4 .cse3) .cse11 .cse15))))) is different from false [2021-11-13 17:36:26,032 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse15 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse3)) (.cse0 (bvadd c_test_fun_~a.offset .cse3 (_ bv12 32))) (.cse2 (select |c_#length| c_test_fun_~a.base)) (.cse16 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse3))) (let ((.cse4 (not (bvule (bvadd c_test_fun_~a.offset .cse3) .cse16))) (.cse5 (not (bvule .cse16 .cse2))) (.cse6 (bvule .cse0 .cse2)) (.cse14 (bvule .cse15 .cse2)) (.cse13 (bvule .cse16 .cse15))) (and (or (let ((.cse1 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse3))) (and (bvule .cse0 .cse1) (bvule .cse1 .cse2))) .cse4 .cse5 (not .cse6)) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse9 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse8 (select |c_#length| c_test_fun_~a.base)) (.cse7 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse9)) (.cse10 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse9)) (.cse11 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse9))) (or (not (bvule .cse7 .cse8)) (not (bvule (bvadd c_test_fun_~a.offset .cse9) .cse10)) (not (bvule .cse11 .cse8)) (let ((.cse12 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse9))) (and (bvule .cse12 .cse8) (bvule .cse7 .cse12))) (not (bvule .cse10 .cse11)))))) (or .cse4 (and .cse13 .cse14) .cse5) (or (and .cse6 (bvule .cse15 .cse0)) (not .cse14) (not .cse13)))))) is different from false [2021-11-13 17:36:28,156 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse14 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse13 (select |c_#length| c_test_fun_~a.base)) (.cse18 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse14))) (let ((.cse16 (bvule (bvadd (_ bv4 32) c_test_fun_~a.offset .cse14) .cse18)) (.cse17 (bvule .cse18 .cse13)) (.cse0 (bvadd c_test_fun_~a.offset .cse14 (_ bv12 32))) (.cse1 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse14))) (let ((.cse2 (bvule .cse1 .cse13)) (.cse4 (bvule .cse0 .cse13)) (.cse3 (bvule .cse18 .cse0)) (.cse11 (not .cse17)) (.cse15 (not .cse16))) (and (or (and (bvule .cse0 .cse1) .cse2) (not .cse3) (not .cse4)) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse7 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse6 (select |c_#length| c_test_fun_~a.base)) (.cse5 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse7)) (.cse8 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse7)) (.cse9 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse7))) (or (not (bvule .cse5 .cse6)) (not (bvule (bvadd c_test_fun_~a.offset .cse7) .cse8)) (not (bvule .cse9 .cse6)) (let ((.cse10 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse7))) (and (bvule .cse10 .cse6) (bvule .cse5 .cse10))) (not (bvule .cse8 .cse9)))))) (or (not .cse2) .cse11 (let ((.cse12 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse14))) (and (bvule .cse12 .cse13) (bvule .cse1 .cse12))) .cse15) .cse16 .cse17 (or (and .cse4 .cse3) .cse11 .cse15)))))) is different from false [2021-11-13 17:36:30,231 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse18 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse3)) (.cse2 (select |c_#length| c_test_fun_~a.base))) (let ((.cse17 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse3)) (.cse0 (bvadd c_test_fun_~a.offset .cse3 (_ bv12 32))) (.cse7 (bvule .cse18 .cse2)) (.cse16 (bvule (bvadd c_test_fun_~a.offset .cse3) .cse18))) (let ((.cse4 (not .cse16)) (.cse5 (not .cse7)) (.cse6 (bvule .cse0 .cse2)) (.cse15 (bvule .cse17 .cse2)) (.cse14 (bvule .cse18 .cse17))) (and (or (let ((.cse1 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse3))) (and (bvule .cse0 .cse1) (bvule .cse1 .cse2))) .cse4 .cse5 (not .cse6)) .cse7 (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse10 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse9 (select |c_#length| c_test_fun_~a.base)) (.cse8 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse10)) (.cse11 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse10)) (.cse12 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse10))) (or (not (bvule .cse8 .cse9)) (not (bvule (bvadd c_test_fun_~a.offset .cse10) .cse11)) (not (bvule .cse12 .cse9)) (let ((.cse13 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse10))) (and (bvule .cse13 .cse9) (bvule .cse8 .cse13))) (not (bvule .cse11 .cse12)))))) (or .cse4 (and .cse14 .cse15) .cse5) .cse16 (or (and .cse6 (bvule .cse17 .cse0)) (not .cse15) (not .cse14))))))) is different from false [2021-11-13 17:36:30,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:36:30,369 INFO L93 Difference]: Finished difference Result 537 states and 629 transitions. [2021-11-13 17:36:30,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-13 17:36:30,371 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 3.0) internal successors, (87), 29 states have internal predecessors, (87), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-11-13 17:36:30,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:36:30,374 INFO L225 Difference]: With dead ends: 537 [2021-11-13 17:36:30,374 INFO L226 Difference]: Without dead ends: 522 [2021-11-13 17:36:30,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 116.0s TimeCoverageRelationStatistics Valid=181, Invalid=954, Unknown=15, NotChecked=490, Total=1640 [2021-11-13 17:36:30,375 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 61 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1350.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 226 IncrementalHoareTripleChecker+Unchecked, 1448.19ms IncrementalHoareTripleChecker+Time [2021-11-13 17:36:30,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 336 Invalid, 367 Unknown, 0 Unchecked, 2.91ms Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 226 Unchecked, 1448.19ms Time] [2021-11-13 17:36:30,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-11-13 17:36:30,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 466. [2021-11-13 17:36:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 455 states have (on average 1.1934065934065934) internal successors, (543), 456 states have internal predecessors, (543), 8 states have call successors, (8), 8 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 552 transitions. [2021-11-13 17:36:30,391 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 552 transitions. Word has length 59 [2021-11-13 17:36:30,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:36:30,391 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 552 transitions. [2021-11-13 17:36:30,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 3.0) internal successors, (87), 29 states have internal predecessors, (87), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:30,392 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 552 transitions. [2021-11-13 17:36:30,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-13 17:36:30,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:36:30,394 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:36:30,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-13 17:36:30,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:36:30,606 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:36:30,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:36:30,607 INFO L85 PathProgramCache]: Analyzing trace with hash -439283719, now seen corresponding path program 4 times [2021-11-13 17:36:30,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:36:30,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355806919] [2021-11-13 17:36:30,608 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 17:36:30,608 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:36:30,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:36:30,609 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:36:30,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-13 17:36:30,730 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 17:36:30,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:36:30,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 17:36:30,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:36:30,782 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 8 treesize of output 7 [2021-11-13 17:36:32,292 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 77 proven. 29 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-13 17:36:32,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:36:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 17:36:38,829 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:36:38,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355806919] [2021-11-13 17:36:38,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355806919] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:36:38,829 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:36:38,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 27 [2021-11-13 17:36:38,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724486742] [2021-11-13 17:36:38,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:36:38,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-13 17:36:38,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:36:38,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-13 17:36:38,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-11-13 17:36:38,831 INFO L87 Difference]: Start difference. First operand 466 states and 552 transitions. Second operand has 27 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:43,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:36:43,017 INFO L93 Difference]: Finished difference Result 474 states and 556 transitions. [2021-11-13 17:36:43,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-13 17:36:43,019 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2021-11-13 17:36:43,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:36:43,022 INFO L225 Difference]: With dead ends: 474 [2021-11-13 17:36:43,022 INFO L226 Difference]: Without dead ends: 471 [2021-11-13 17:36:43,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=117, Invalid=753, Unknown=0, NotChecked=0, Total=870 [2021-11-13 17:36:43,023 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 59 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3329.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.24ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 3484.83ms IncrementalHoareTripleChecker+Time [2021-11-13 17:36:43,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 400 Invalid, 321 Unknown, 0 Unchecked, 3.24ms Time], IncrementalHoareTripleChecker [15 Valid, 272 Invalid, 0 Unknown, 34 Unchecked, 3484.83ms Time] [2021-11-13 17:36:43,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2021-11-13 17:36:43,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 442. [2021-11-13 17:36:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 431 states have (on average 1.1902552204176333) internal successors, (513), 432 states have internal predecessors, (513), 8 states have call successors, (8), 8 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:43,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 522 transitions. [2021-11-13 17:36:43,038 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 522 transitions. Word has length 61 [2021-11-13 17:36:43,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:36:43,039 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 522 transitions. [2021-11-13 17:36:43,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:43,039 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 522 transitions. [2021-11-13 17:36:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-13 17:36:43,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:36:43,041 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:36:43,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-13 17:36:43,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:36:43,253 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:36:43,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:36:43,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1492648224, now seen corresponding path program 5 times [2021-11-13 17:36:43,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:36:43,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285929057] [2021-11-13 17:36:43,254 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-13 17:36:43,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:36:43,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:36:43,255 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:36:43,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-13 17:36:43,481 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-11-13 17:36:43,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:36:43,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-13 17:36:43,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:36:43,558 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 8 treesize of output 7 [2021-11-13 17:36:46,242 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 48 proven. 87 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:36:46,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:36:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 17:36:55,758 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:36:55,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285929057] [2021-11-13 17:36:55,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285929057] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:36:55,758 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:36:55,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 35 [2021-11-13 17:36:55,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163816869] [2021-11-13 17:36:55,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:36:55,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-13 17:36:55,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:36:55,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-13 17:36:55,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1026, Unknown=0, NotChecked=0, Total=1190 [2021-11-13 17:36:55,761 INFO L87 Difference]: Start difference. First operand 442 states and 522 transitions. Second operand has 35 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 33 states have internal predecessors, (110), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:37:12,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:12,919 INFO L93 Difference]: Finished difference Result 670 states and 782 transitions. [2021-11-13 17:37:12,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-13 17:37:12,922 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 33 states have internal predecessors, (110), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2021-11-13 17:37:12,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:12,926 INFO L225 Difference]: With dead ends: 670 [2021-11-13 17:37:12,926 INFO L226 Difference]: Without dead ends: 607 [2021-11-13 17:37:12,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=414, Invalid=2556, Unknown=0, NotChecked=0, Total=2970 [2021-11-13 17:37:12,928 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 231 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6010.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.52ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 327 IncrementalHoareTripleChecker+Unchecked, 6426.59ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:12,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 694 Invalid, 1041 Unknown, 0 Unchecked, 7.52ms Time], IncrementalHoareTripleChecker [53 Valid, 661 Invalid, 0 Unknown, 327 Unchecked, 6426.59ms Time] [2021-11-13 17:37:12,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2021-11-13 17:37:12,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 491. [2021-11-13 17:37:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 479 states have (on average 1.18580375782881) internal successors, (568), 480 states have internal predecessors, (568), 9 states have call successors, (9), 9 states have call predecessors, (9), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:37:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 578 transitions. [2021-11-13 17:37:12,944 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 578 transitions. Word has length 63 [2021-11-13 17:37:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:12,944 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 578 transitions. [2021-11-13 17:37:12,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 33 states have internal predecessors, (110), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:37:12,945 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 578 transitions. [2021-11-13 17:37:12,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-13 17:37:12,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:12,947 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 7, 7, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:12,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-13 17:37:13,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:37:13,160 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting test_funErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, test_funErr0REQUIRES_VIOLATION (and 5 more)] === [2021-11-13 17:37:13,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:13,160 INFO L85 PathProgramCache]: Analyzing trace with hash -524491050, now seen corresponding path program 6 times [2021-11-13 17:37:13,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:37:13,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572589501] [2021-11-13 17:37:13,160 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-13 17:37:13,161 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:37:13,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:37:13,161 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:37:13,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4a080c-5b8a-4f5e-9989-342661f1d371/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-13 17:37:13,395 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-11-13 17:37:13,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:37:13,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-13 17:37:13,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:37:13,444 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 8 treesize of output 7 [2021-11-13 17:37:17,142 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 82 proven. 57 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 17:37:17,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:38:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:38:06,209 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:38:06,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572589501] [2021-11-13 17:38:06,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572589501] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 17:38:06,209 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 17:38:06,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 34 [2021-11-13 17:38:06,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155070198] [2021-11-13 17:38:06,210 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 17:38:06,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-13 17:38:06,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:38:06,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-13 17:38:06,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=959, Unknown=8, NotChecked=0, Total=1122 [2021-11-13 17:38:06,211 INFO L87 Difference]: Start difference. First operand 491 states and 578 transitions. Second operand has 34 states, 32 states have (on average 3.4375) internal successors, (110), 32 states have internal predecessors, (110), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:38:20,588 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse3 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse1 (select |c_#length| c_test_fun_~a.base)) (.cse4 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse3)) (.cse0 (bvadd c_test_fun_~a.offset .cse3 (_ bv24 32)))) (or (not (bvule .cse0 .cse1)) (let ((.cse2 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse3))) (and (bvule .cse2 .cse1) (bvule .cse0 .cse2))) (not (bvule (bvadd (_ bv16 32) c_test_fun_~a.offset .cse3) .cse4)) (not (bvule .cse4 .cse0))))) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse8 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse5 (bvadd c_test_fun_~a.offset .cse8 (_ bv24 32))) (.cse9 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse8)) (.cse6 (select |c_#length| c_test_fun_~a.base))) (or (not (bvule .cse5 .cse6)) (let ((.cse7 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse8))) (and (bvule .cse7 .cse6) (bvule .cse5 .cse7))) (not (bvule (bvadd c_test_fun_~a.offset .cse8) .cse9)) (not (bvule .cse9 .cse6))))))) is different from false [2021-11-13 17:39:10,596 WARN L227 SmtUtils]: Spent 15.69s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:39:12,642 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse1 (select |c_#length| c_test_fun_~a.base)) (.cse5 (bvadd c_test_fun_~a.offset .cse2 (_ bv24 32))) (.cse14 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse2)) (.cse13 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse2))) (let ((.cse0 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse2)) (.cse6 (not (bvule .cse14 .cse13))) (.cse7 (bvule .cse13 .cse5)) (.cse3 (bvule .cse5 .cse1))) (and (bvule .cse0 .cse1) (bvule (bvadd c_test_fun_~a.offset .cse2) .cse0) (or (not .cse3) (let ((.cse4 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse2))) (and (bvule .cse4 .cse1) (bvule .cse5 .cse4))) .cse6 (not .cse7)) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse11 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse8 (bvadd c_test_fun_~a.offset .cse11 (_ bv24 32))) (.cse12 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse11)) (.cse9 (select |c_#length| c_test_fun_~a.base))) (or (not (bvule .cse8 .cse9)) (let ((.cse10 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse11))) (and (bvule .cse10 .cse9) (bvule .cse8 .cse10))) (not (bvule (bvadd c_test_fun_~a.offset .cse11) .cse12)) (not (bvule .cse12 .cse9)))))) (or (not (bvule .cse13 .cse1)) .cse6 (and .cse7 .cse3) (not (bvule (bvadd c_test_fun_~a.offset .cse2 (_ bv12 32)) .cse14))))))) is different from false [2021-11-13 17:40:18,201 WARN L227 SmtUtils]: Spent 47.68s on a formula simplification. DAG size of input: 42 DAG size of output: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:40:20,238 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse3 (bvadd c_test_fun_~a.offset .cse2 (_ bv12 32))) (.cse0 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse2)) (.cse12 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse2)) (.cse1 (select |c_#length| c_test_fun_~a.base))) (let ((.cse4 (bvule .cse12 .cse1)) (.cse5 (bvule .cse0 .cse12)) (.cse6 (not (bvule .cse3 .cse0)))) (and (or (not (bvule .cse0 .cse1)) (not (bvule (bvadd (_ bv8 32) c_test_fun_~a.offset .cse2) .cse3)) (and .cse4 .cse5) .cse6) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse10 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse7 (bvadd c_test_fun_~a.offset .cse10 (_ bv24 32))) (.cse11 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse10)) (.cse8 (select |c_#length| c_test_fun_~a.base))) (or (not (bvule .cse7 .cse8)) (let ((.cse9 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse10))) (and (bvule .cse9 .cse8) (bvule .cse7 .cse9))) (not (bvule (bvadd c_test_fun_~a.offset .cse10) .cse11)) (not (bvule .cse11 .cse8)))))) (or (not .cse4) (not .cse5) (let ((.cse13 (bvadd c_test_fun_~a.offset .cse2 (_ bv24 32)))) (and (bvule .cse12 .cse13) (bvule .cse13 .cse1))) .cse6))))) is different from false [2021-11-13 17:40:23,784 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse2 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse3)) (.cse18 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse3))) (let ((.cse4 (bvadd c_test_fun_~a.offset .cse3 (_ bv12 32))) (.cse10 (bvadd c_test_fun_~a.offset .cse3 (_ bv24 32))) (.cse6 (bvule .cse2 .cse18)) (.cse1 (select |c_#length| c_test_fun_~a.base))) (let ((.cse0 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse3)) (.cse5 (bvule .cse18 .cse1)) (.cse11 (not .cse6)) (.cse12 (bvule .cse18 .cse10)) (.cse8 (bvule .cse10 .cse1)) (.cse7 (not (bvule .cse4 .cse2)))) (and (bvule .cse0 .cse1) (or (not (bvule .cse2 .cse1)) (not (bvule (bvadd (_ bv8 32) c_test_fun_~a.offset .cse3) .cse4)) (and .cse5 .cse6) .cse7) (bvule (bvadd c_test_fun_~a.offset .cse3) .cse0) (or (not .cse8) (let ((.cse9 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse3))) (and (bvule .cse9 .cse1) (bvule .cse10 .cse9))) .cse11 (not .cse12)) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse16 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse13 (bvadd c_test_fun_~a.offset .cse16 (_ bv24 32))) (.cse17 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse16)) (.cse14 (select |c_#length| c_test_fun_~a.base))) (or (not (bvule .cse13 .cse14)) (let ((.cse15 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse16))) (and (bvule .cse15 .cse14) (bvule .cse13 .cse15))) (not (bvule (bvadd c_test_fun_~a.offset .cse16) .cse17)) (not (bvule .cse17 .cse14)))))) (or (not .cse5) .cse11 (and .cse12 .cse8) .cse7)))))) is different from false [2021-11-13 17:42:25,871 WARN L227 SmtUtils]: Spent 1.76m on a formula simplification. DAG size of input: 50 DAG size of output: 50 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:42:27,920 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse13 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse11 (bvadd c_test_fun_~a.offset .cse13 (_ bv12 32))) (.cse17 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse13))) (let ((.cse10 (bvule .cse11 .cse17)) (.cse15 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse13)) (.cse14 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse13)) (.cse12 (select |c_#length| c_test_fun_~a.base))) (let ((.cse0 (bvule .cse17 .cse12)) (.cse1 (not (bvule .cse14 .cse11))) (.cse2 (bvule .cse15 .cse12)) (.cse3 (bvule .cse17 .cse15)) (.cse4 (not .cse10))) (and (or (not .cse0) .cse1 (and .cse2 .cse3) .cse4) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse8 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse5 (bvadd c_test_fun_~a.offset .cse8 (_ bv24 32))) (.cse9 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse8)) (.cse6 (select |c_#length| c_test_fun_~a.base))) (or (not (bvule .cse5 .cse6)) (let ((.cse7 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse8))) (and (bvule .cse7 .cse6) (bvule .cse5 .cse7))) (not (bvule (bvadd c_test_fun_~a.offset .cse8) .cse9)) (not (bvule .cse9 .cse6)))))) (or (and .cse10 .cse0) .cse1 (not (bvule .cse11 .cse12)) (not (bvule (bvadd (_ bv4 32) c_test_fun_~a.offset .cse13) .cse14))) (or (not .cse2) (not .cse3) (let ((.cse16 (bvadd c_test_fun_~a.offset .cse13 (_ bv24 32)))) (and (bvule .cse15 .cse16) (bvule .cse16 .cse12))) .cse4)))))) is different from false [2021-11-13 17:42:30,107 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse21 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse7)) (.cse19 (bvadd c_test_fun_~a.offset .cse7 (_ bv12 32))) (.cse22 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse7))) (let ((.cse18 (bvule .cse19 .cse22)) (.cse10 (bvadd c_test_fun_~a.offset .cse7 (_ bv24 32))) (.cse5 (bvule .cse22 .cse21)) (.cse20 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse7)) (.cse1 (select |c_#length| c_test_fun_~a.base))) (let ((.cse2 (bvule .cse22 .cse1)) (.cse3 (not (bvule .cse20 .cse19))) (.cse0 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse7)) (.cse4 (bvule .cse21 .cse1)) (.cse11 (not .cse5)) (.cse12 (bvule .cse21 .cse10)) (.cse8 (bvule .cse10 .cse1)) (.cse6 (not .cse18))) (and (bvule .cse0 .cse1) (or (not .cse2) .cse3 (and .cse4 .cse5) .cse6) (bvule (bvadd c_test_fun_~a.offset .cse7) .cse0) (or (not .cse8) (let ((.cse9 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse7))) (and (bvule .cse9 .cse1) (bvule .cse10 .cse9))) .cse11 (not .cse12)) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse16 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse13 (bvadd c_test_fun_~a.offset .cse16 (_ bv24 32))) (.cse17 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse16)) (.cse14 (select |c_#length| c_test_fun_~a.base))) (or (not (bvule .cse13 .cse14)) (let ((.cse15 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse16))) (and (bvule .cse15 .cse14) (bvule .cse13 .cse15))) (not (bvule (bvadd c_test_fun_~a.offset .cse16) .cse17)) (not (bvule .cse17 .cse14)))))) (or (and .cse18 .cse2) .cse3 (not (bvule .cse19 .cse1)) (not (bvule .cse0 .cse20))) (or (not .cse4) .cse11 (and .cse12 .cse8) .cse6)))))) is different from false [2021-11-13 17:45:14,408 WARN L227 SmtUtils]: Spent 2.42m on a formula simplification. DAG size of input: 56 DAG size of output: 56 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 17:45:24,886 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse4 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse0)) (.cse21 (bvadd c_test_fun_~a.offset .cse0 (_ bv12 32))) (.cse20 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse0))) (let ((.cse17 (bvule .cse21 .cse20)) (.cse18 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse0)) (.cse1 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse0)) (.cse3 (bvule .cse4 .cse21)) (.cse5 (select |c_#length| c_test_fun_~a.base))) (let ((.cse7 (bvule .cse20 .cse5)) (.cse8 (not .cse3)) (.cse2 (bvule .cse21 .cse5)) (.cse6 (not (bvule .cse1 .cse4))) (.cse9 (bvule .cse18 .cse5)) (.cse10 (bvule .cse20 .cse18)) (.cse11 (not .cse17))) (and (or (not (bvule (bvadd c_test_fun_~a.offset .cse0) .cse1)) (and .cse2 .cse3) (not (bvule .cse4 .cse5)) .cse6) (or (not .cse7) .cse8 (and .cse9 .cse10) .cse11) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse15 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse12 (bvadd c_test_fun_~a.offset .cse15 (_ bv24 32))) (.cse16 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse15)) (.cse13 (select |c_#length| c_test_fun_~a.base))) (or (not (bvule .cse12 .cse13)) (let ((.cse14 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse15))) (and (bvule .cse14 .cse13) (bvule .cse12 .cse14))) (not (bvule (bvadd c_test_fun_~a.offset .cse15) .cse16)) (not (bvule .cse16 .cse13)))))) (or (and .cse17 .cse7) .cse8 (not .cse2) .cse6) (or (not .cse9) (not .cse10) (let ((.cse19 (bvadd c_test_fun_~a.offset .cse0 (_ bv24 32)))) (and (bvule .cse18 .cse19) (bvule .cse19 .cse5))) .cse11)))))) is different from false [2021-11-13 17:45:29,823 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (bvmul c_test_fun_~i~0 (_ bv4 32)))) (let ((.cse10 (bvadd (_ bv8 32) c_test_fun_~a.offset .cse7)) (.cse23 (bvadd c_test_fun_~a.offset (_ bv20 32) .cse7)) (.cse24 (bvadd c_test_fun_~a.offset .cse7 (_ bv12 32))) (.cse25 (bvadd (_ bv16 32) c_test_fun_~a.offset .cse7))) (let ((.cse22 (bvule .cse24 .cse25)) (.cse14 (bvadd c_test_fun_~a.offset .cse7 (_ bv24 32))) (.cse5 (bvule .cse25 .cse23)) (.cse0 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse7)) (.cse9 (bvule .cse10 .cse24)) (.cse1 (select |c_#length| c_test_fun_~a.base))) (let ((.cse2 (bvule .cse25 .cse1)) (.cse3 (not .cse9)) (.cse8 (bvule .cse24 .cse1)) (.cse11 (not (bvule .cse0 .cse10))) (.cse4 (bvule .cse23 .cse1)) (.cse15 (not .cse5)) (.cse16 (bvule .cse23 .cse14)) (.cse12 (bvule .cse14 .cse1)) (.cse6 (not .cse22))) (and (bvule .cse0 .cse1) (or (not .cse2) .cse3 (and .cse4 .cse5) .cse6) (bvule (bvadd c_test_fun_~a.offset .cse7) .cse0) (or (and .cse8 .cse9) (not (bvule .cse10 .cse1)) .cse11) (or (not .cse12) (let ((.cse13 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse7))) (and (bvule .cse13 .cse1) (bvule .cse14 .cse13))) .cse15 (not .cse16)) (forall ((test_fun_~i~0 (_ BitVec 32))) (let ((.cse20 (bvmul test_fun_~i~0 (_ bv4 32)))) (let ((.cse17 (bvadd c_test_fun_~a.offset .cse20 (_ bv24 32))) (.cse21 (bvadd (_ bv4 32) c_test_fun_~a.offset .cse20)) (.cse18 (select |c_#length| c_test_fun_~a.base))) (or (not (bvule .cse17 .cse18)) (let ((.cse19 (bvadd (_ bv28 32) c_test_fun_~a.offset .cse20))) (and (bvule .cse19 .cse18) (bvule .cse17 .cse19))) (not (bvule (bvadd c_test_fun_~a.offset .cse20) .cse21)) (not (bvule .cse21 .cse18)))))) (or (and .cse22 .cse2) .cse3 (not .cse8) .cse11) (or (not .cse4) .cse15 (and .cse16 .cse12) .cse6)))))) is different from false