./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7c0f55efd94c93e17f9b5d2997faae48611cbba6 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Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 7c0f55efd94c93e17f9b5d2997faae48611cbba6 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Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:18:23,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:18:23,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:18:23,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:18:23,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:18:23,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:18:23,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:18:23,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:18:23,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:18:23,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:18:23,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:18:23,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:18:23,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:18:23,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:18:23,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:18:23,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:18:23,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:18:23,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:18:23,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:18:23,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:18:23,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:18:23,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:18:23,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:18:23,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:18:23,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:18:23,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:18:23,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:18:23,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:18:23,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:18:23,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:18:23,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:18:23,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:18:23,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:18:23,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:18:23,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:18:23,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:18:23,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:18:23,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:18:23,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:18:23,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:18:23,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:18:23,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:18:23,170 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:18:23,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:18:23,171 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:18:23,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:18:23,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:18:23,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:18:23,173 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:18:23,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:18:23,173 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:18:23,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:18:23,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:18:23,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:18:23,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:18:23,174 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:18:23,175 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:18:23,175 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:18:23,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:18:23,180 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:18:23,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:18:23,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:18:23,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:18:23,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:18:23,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:18:23,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:23,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:18:23,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:18:23,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:18:23,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:18:23,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:18:23,182 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c0f55efd94c93e17f9b5d2997faae48611cbba6 [2021-08-27 06:18:23,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:18:23,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:18:23,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:18:23,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:18:23,463 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:18:23,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-08-27 06:18:23,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5a3d691/5b1d927a8d3b49e881432365d729338c/FLAG5b643d90e [2021-08-27 06:18:23,936 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:18:23,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-08-27 06:18:23,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5a3d691/5b1d927a8d3b49e881432365d729338c/FLAG5b643d90e [2021-08-27 06:18:24,302 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5a3d691/5b1d927a8d3b49e881432365d729338c [2021-08-27 06:18:24,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:18:24,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:18:24,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:24,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:18:24,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:18:24,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:24" (1/1) ... [2021-08-27 06:18:24,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542ba36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:24, skipping insertion in model container [2021-08-27 06:18:24,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:24" (1/1) ... [2021-08-27 06:18:24,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:18:24,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:24,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:24,619 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) [2021-08-27 06:18:24,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53b41484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:24, skipping insertion in model container [2021-08-27 06:18:24,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:24,621 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:18:24,622 INFO L168 Benchmark]: Toolchain (without parser) took 316.33 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 40.9 MB in the end (delta: -15.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:24,622 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.1 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:18:24,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.87 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.5 MB in the beginning and 40.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:18:24,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.1 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.87 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.5 MB in the beginning and 40.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:18:26,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:18:26,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:18:26,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:18:26,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:18:26,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:18:26,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:18:26,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:18:26,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:18:26,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:18:26,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:18:26,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:18:26,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:18:26,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:18:26,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:18:26,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:18:26,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:18:26,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:18:26,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:18:26,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:18:26,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:18:26,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:18:26,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:18:26,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:18:26,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:18:26,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:18:26,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:18:26,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:18:26,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:18:26,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:18:26,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:18:26,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:18:26,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:18:26,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:18:26,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:18:26,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:18:26,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:18:26,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:18:26,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:18:26,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:18:26,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:18:26,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:18:26,242 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:18:26,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:18:26,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:18:26,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:18:26,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:18:26,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:18:26,245 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:18:26,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:18:26,245 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:18:26,245 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:18:26,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:18:26,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:18:26,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:18:26,246 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:18:26,247 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:18:26,247 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:18:26,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:18:26,247 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:18:26,247 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:18:26,247 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:18:26,247 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:18:26,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:18:26,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:18:26,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:18:26,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:18:26,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:26,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:18:26,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:18:26,249 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:18:26,249 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:18:26,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:18:26,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:18:26,249 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c0f55efd94c93e17f9b5d2997faae48611cbba6 [2021-08-27 06:18:26,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:18:26,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:18:26,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:18:26,518 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:18:26,518 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:18:26,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-08-27 06:18:26,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bde136991/15ea57ab34f447d0bd8d7924f578e7cb/FLAG85a537dda [2021-08-27 06:18:27,033 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:18:27,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-2.i [2021-08-27 06:18:27,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bde136991/15ea57ab34f447d0bd8d7924f578e7cb/FLAG85a537dda [2021-08-27 06:18:27,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bde136991/15ea57ab34f447d0bd8d7924f578e7cb [2021-08-27 06:18:27,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:18:27,567 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:18:27,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:27,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:18:27,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:18:27,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:27" (1/1) ... [2021-08-27 06:18:27,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44272958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:27, skipping insertion in model container [2021-08-27 06:18:27,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:18:27" (1/1) ... [2021-08-27 06:18:27,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:18:27,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:27,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:27,877 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:18:27,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:18:27,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:27,947 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:18:27,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:18:28,038 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:18:28,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28 WrapperNode [2021-08-27 06:18:28,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:18:28,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:18:28,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:18:28,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:18:28,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28" (1/1) ... [2021-08-27 06:18:28,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28" (1/1) ... [2021-08-27 06:18:28,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28" (1/1) ... [2021-08-27 06:18:28,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28" (1/1) ... [2021-08-27 06:18:28,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28" (1/1) ... [2021-08-27 06:18:28,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28" (1/1) ... [2021-08-27 06:18:28,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28" (1/1) ... [2021-08-27 06:18:28,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:18:28,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:18:28,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:18:28,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:18:28,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28" (1/1) ... [2021-08-27 06:18:28,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:18:28,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:18:28,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 06:18:28,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:18:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:18:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:18:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:18:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:18:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:18:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:18:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:18:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:18:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:18:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:18:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:18:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:18:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:18:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:18:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:18:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:18:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:18:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:18:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:18:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:18:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:18:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:18:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:18:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:18:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:18:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:18:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:18:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:18:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:18:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:18:28,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:18:28,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:18:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:18:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:18:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:18:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:18:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:18:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:18:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:18:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:18:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:18:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:18:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:18:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:18:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:18:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:18:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:18:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:18:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:18:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:18:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:18:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:18:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:18:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:18:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:18:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:18:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:18:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:18:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:18:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:18:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:18:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:18:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:18:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:18:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:18:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:18:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:18:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:18:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:18:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:18:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:18:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:18:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:18:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:18:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:18:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:18:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:18:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:18:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:18:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:18:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:18:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:18:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:18:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:18:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:18:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:18:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:18:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:18:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:18:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:18:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:18:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:18:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:18:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:18:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:18:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:18:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:18:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:18:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:18:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:18:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:18:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:18:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:18:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:18:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:18:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:18:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:18:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:18:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:18:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:18:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:18:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:18:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:18:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:18:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:18:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:18:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:18:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:18:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:18:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:18:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:18:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:18:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:18:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:18:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:18:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:18:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:18:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:18:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:18:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:18:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:18:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:18:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:18:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:18:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:18:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:18:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:18:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:18:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:18:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:18:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:18:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:18:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:18:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:18:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:18:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:18:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:18:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:18:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:18:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:18:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:18:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:18:28,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:18:28,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:18:28,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:18:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:18:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:18:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:18:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:18:28,701 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:18:28,885 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:18:29,043 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:18:29,043 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:18:29,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:29 BoogieIcfgContainer [2021-08-27 06:18:29,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:18:29,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:18:29,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:18:29,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:18:29,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:18:27" (1/3) ... [2021-08-27 06:18:29,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c78589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:18:29, skipping insertion in model container [2021-08-27 06:18:29,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:18:28" (2/3) ... [2021-08-27 06:18:29,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c78589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:18:29, skipping insertion in model container [2021-08-27 06:18:29,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:29" (3/3) ... [2021-08-27 06:18:29,049 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-2.i [2021-08-27 06:18:29,052 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:18:29,052 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-08-27 06:18:29,076 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:18:29,079 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, mConcurrency=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 [2021-08-27 06:18:29,080 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-08-27 06:18:29,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-08-27 06:18:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:18:29,093 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:29,093 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:29,093 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:29,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:29,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1853453812, now seen corresponding path program 1 times [2021-08-27 06:18:29,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:29,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912444581] [2021-08-27 06:18:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:29,104 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:29,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:29,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:29,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:18:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:29,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:18:29,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:29,378 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 [2021-08-27 06:18:29,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:29,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:29,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:29,515 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:29,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912444581] [2021-08-27 06:18:29,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912444581] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:29,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:29,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:18:29,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073148000] [2021-08-27 06:18:29,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:29,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:29,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:29,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:29,537 INFO L87 Difference]: Start difference. First operand has 150 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 113 states have internal predecessors, (122), 19 states have call successors, (19), 18 states have call predecessors, (19), 18 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:29,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:29,701 INFO L93 Difference]: Finished difference Result 132 states and 142 transitions. [2021-08-27 06:18:29,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:29,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:18:29,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:29,710 INFO L225 Difference]: With dead ends: 132 [2021-08-27 06:18:29,711 INFO L226 Difference]: Without dead ends: 129 [2021-08-27 06:18:29,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:29,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-08-27 06:18:29,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2021-08-27 06:18:29,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 90 states have internal predecessors, (97), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2021-08-27 06:18:29,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2021-08-27 06:18:29,754 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 17 [2021-08-27 06:18:29,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:29,755 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2021-08-27 06:18:29,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:29,756 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2021-08-27 06:18:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:18:29,757 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:29,757 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:29,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:29,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:29,964 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:29,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:29,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1853453811, now seen corresponding path program 1 times [2021-08-27 06:18:29,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:29,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862909889] [2021-08-27 06:18:29,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:29,966 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:29,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:29,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:29,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:18:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:30,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:18:30,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:30,145 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 [2021-08-27 06:18:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:30,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:30,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:30,465 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:30,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862909889] [2021-08-27 06:18:30,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862909889] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:30,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:30,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-27 06:18:30,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903673326] [2021-08-27 06:18:30,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:18:30,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:30,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:18:30,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:18:30,467 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:30,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:30,744 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2021-08-27 06:18:30,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:18:30,745 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-08-27 06:18:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:30,746 INFO L225 Difference]: With dead ends: 128 [2021-08-27 06:18:30,746 INFO L226 Difference]: Without dead ends: 128 [2021-08-27 06:18:30,746 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 142.6ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:18:30,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-08-27 06:18:30,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2021-08-27 06:18:30,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 68 states have (on average 1.411764705882353) internal successors, (96), 90 states have internal predecessors, (96), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2021-08-27 06:18:30,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 132 transitions. [2021-08-27 06:18:30,752 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 132 transitions. Word has length 17 [2021-08-27 06:18:30,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:30,752 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 132 transitions. [2021-08-27 06:18:30,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:30,752 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 132 transitions. [2021-08-27 06:18:30,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-27 06:18:30,752 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:30,753 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:30,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:30,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:30,960 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:30,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1824824661, now seen corresponding path program 1 times [2021-08-27 06:18:30,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:30,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812905856] [2021-08-27 06:18:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:30,961 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:30,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:30,965 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:30,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:18:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:31,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:18:31,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:31,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:31,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:31,260 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:31,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812905856] [2021-08-27 06:18:31,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812905856] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:31,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:31,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:18:31,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048032853] [2021-08-27 06:18:31,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:31,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:31,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:31,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:31,262 INFO L87 Difference]: Start difference. First operand 123 states and 132 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:31,276 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2021-08-27 06:18:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:31,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-08-27 06:18:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:31,277 INFO L225 Difference]: With dead ends: 122 [2021-08-27 06:18:31,278 INFO L226 Difference]: Without dead ends: 122 [2021-08-27 06:18:31,278 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:31,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-08-27 06:18:31,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-08-27 06:18:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 87 states have internal predecessors, (93), 17 states have call successors, (17), 17 states have call predecessors, (17), 17 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2021-08-27 06:18:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 127 transitions. [2021-08-27 06:18:31,282 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 127 transitions. Word has length 17 [2021-08-27 06:18:31,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:31,282 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 127 transitions. [2021-08-27 06:18:31,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-08-27 06:18:31,283 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 127 transitions. [2021-08-27 06:18:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:18:31,283 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:31,283 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:31,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:31,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:31,491 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:31,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:31,491 INFO L82 PathProgramCache]: Analyzing trace with hash -779180921, now seen corresponding path program 1 times [2021-08-27 06:18:31,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:31,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121564902] [2021-08-27 06:18:31,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:31,492 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:31,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:31,493 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:31,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:18:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:31,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:18:31,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:31,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:31,860 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:31,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121564902] [2021-08-27 06:18:31,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121564902] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:31,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:31,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:18:31,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137766602] [2021-08-27 06:18:31,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:18:31,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:31,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:18:31,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:31,862 INFO L87 Difference]: Start difference. First operand 120 states and 127 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:31,875 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2021-08-27 06:18:31,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:18:31,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-08-27 06:18:31,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:31,877 INFO L225 Difference]: With dead ends: 122 [2021-08-27 06:18:31,877 INFO L226 Difference]: Without dead ends: 122 [2021-08-27 06:18:31,877 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:18:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-08-27 06:18:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-08-27 06:18:31,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.373134328358209) internal successors, (92), 87 states have internal predecessors, (92), 17 states have call successors, (17), 17 states have call predecessors, (17), 17 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2021-08-27 06:18:31,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2021-08-27 06:18:31,882 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 29 [2021-08-27 06:18:31,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:31,882 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2021-08-27 06:18:31,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:31,883 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2021-08-27 06:18:31,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 06:18:31,883 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:31,884 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:31,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:32,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:32,084 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:32,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:32,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1776253274, now seen corresponding path program 1 times [2021-08-27 06:18:32,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:32,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327064975] [2021-08-27 06:18:32,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:32,085 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:32,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:32,086 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:32,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:18:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:32,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:32,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:32,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:32,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:32,488 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:32,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327064975] [2021-08-27 06:18:32,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327064975] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:32,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:32,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-27 06:18:32,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310016487] [2021-08-27 06:18:32,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 06:18:32,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:32,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 06:18:32,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:32,490 INFO L87 Difference]: Start difference. First operand 120 states and 126 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:32,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:32,522 INFO L93 Difference]: Finished difference Result 132 states and 138 transitions. [2021-08-27 06:18:32,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:18:32,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-08-27 06:18:32,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:32,523 INFO L225 Difference]: With dead ends: 132 [2021-08-27 06:18:32,523 INFO L226 Difference]: Without dead ends: 132 [2021-08-27 06:18:32,524 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.5ms TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:18:32,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-08-27 06:18:32,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2021-08-27 06:18:32,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 93 states have internal predecessors, (97), 18 states have call successors, (18), 18 states have call predecessors, (18), 19 states have return successors, (19), 18 states have call predecessors, (19), 17 states have call successors, (19) [2021-08-27 06:18:32,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 134 transitions. [2021-08-27 06:18:32,528 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 134 transitions. Word has length 29 [2021-08-27 06:18:32,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:32,528 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 134 transitions. [2021-08-27 06:18:32,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:18:32,529 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 134 transitions. [2021-08-27 06:18:32,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 06:18:32,529 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:32,529 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:32,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:32,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:32,737 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:32,737 INFO L82 PathProgramCache]: Analyzing trace with hash 438885256, now seen corresponding path program 1 times [2021-08-27 06:18:32,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:32,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193677329] [2021-08-27 06:18:32,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:32,738 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:32,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:32,739 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:32,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:18:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:32,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 06:18:32,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:32,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:33,153 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:33,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193677329] [2021-08-27 06:18:33,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193677329] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:33,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:33,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:18:33,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990299415] [2021-08-27 06:18:33,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:18:33,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:33,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:18:33,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:18:33,154 INFO L87 Difference]: Start difference. First operand 128 states and 134 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:18:33,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:33,269 INFO L93 Difference]: Finished difference Result 139 states and 144 transitions. [2021-08-27 06:18:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:18:33,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 27 [2021-08-27 06:18:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:33,270 INFO L225 Difference]: With dead ends: 139 [2021-08-27 06:18:33,270 INFO L226 Difference]: Without dead ends: 124 [2021-08-27 06:18:33,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:18:33,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-08-27 06:18:33,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2021-08-27 06:18:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 64 states have (on average 1.375) internal successors, (88), 84 states have internal predecessors, (88), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:33,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2021-08-27 06:18:33,274 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 27 [2021-08-27 06:18:33,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:33,275 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2021-08-27 06:18:33,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:18:33,275 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2021-08-27 06:18:33,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-27 06:18:33,275 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:33,276 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:33,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:33,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:33,485 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:33,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:33,486 INFO L82 PathProgramCache]: Analyzing trace with hash -972322523, now seen corresponding path program 1 times [2021-08-27 06:18:33,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:33,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321229034] [2021-08-27 06:18:33,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:33,486 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:33,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:33,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:33,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:18:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:33,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 06:18:33,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:33,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:33,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:33,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:33,853 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:33,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321229034] [2021-08-27 06:18:33,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321229034] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:33,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:33,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-27 06:18:33,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923062030] [2021-08-27 06:18:33,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:18:33,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:33,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:18:33,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:18:33,855 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:33,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:33,881 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2021-08-27 06:18:33,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:18:33,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-08-27 06:18:33,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:33,883 INFO L225 Difference]: With dead ends: 122 [2021-08-27 06:18:33,883 INFO L226 Difference]: Without dead ends: 118 [2021-08-27 06:18:33,883 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.3ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:18:33,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-08-27 06:18:33,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-08-27 06:18:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 86 states have internal predecessors, (90), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 123 transitions. [2021-08-27 06:18:33,886 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 123 transitions. Word has length 32 [2021-08-27 06:18:33,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:33,886 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 123 transitions. [2021-08-27 06:18:33,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:33,886 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 123 transitions. [2021-08-27 06:18:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-27 06:18:33,887 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:33,887 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:33,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:34,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:34,099 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:34,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:34,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1413246651, now seen corresponding path program 1 times [2021-08-27 06:18:34,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:34,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517317418] [2021-08-27 06:18:34,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:34,099 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:34,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:34,101 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:34,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-27 06:18:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:34,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 06:18:34,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:34,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:34,559 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:34,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517317418] [2021-08-27 06:18:34,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517317418] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:18:34,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:18:34,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-27 06:18:34,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705582861] [2021-08-27 06:18:34,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:18:34,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:34,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:18:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:18:34,561 INFO L87 Difference]: Start difference. First operand 118 states and 123 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:34,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:34,668 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2021-08-27 06:18:34,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:18:34,669 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-08-27 06:18:34,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:34,669 INFO L225 Difference]: With dead ends: 126 [2021-08-27 06:18:34,669 INFO L226 Difference]: Without dead ends: 122 [2021-08-27 06:18:34,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 112.9ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:18:34,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-08-27 06:18:34,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-08-27 06:18:34,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 90 states have internal predecessors, (94), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:34,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2021-08-27 06:18:34,672 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 34 [2021-08-27 06:18:34,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:34,672 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2021-08-27 06:18:34,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:34,672 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2021-08-27 06:18:34,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:18:34,673 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:34,673 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:34,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:34,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:34,881 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:34,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:34,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1076819579, now seen corresponding path program 2 times [2021-08-27 06:18:34,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:34,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068824056] [2021-08-27 06:18:34,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:18:34,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:34,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:34,882 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:34,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-27 06:18:35,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:18:35,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:18:35,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:35,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:35,133 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 [2021-08-27 06:18:35,326 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-27 06:18:35,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:35,474 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-08-27 06:18:35,474 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:35,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068824056] [2021-08-27 06:18:35,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068824056] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:35,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:35,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:18:35,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250972473] [2021-08-27 06:18:35,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:18:35,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:35,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:18:35,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:18:35,476 INFO L87 Difference]: Start difference. First operand 122 states and 127 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:18:35,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:35,932 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2021-08-27 06:18:35,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:18:35,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-08-27 06:18:35,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:35,933 INFO L225 Difference]: With dead ends: 133 [2021-08-27 06:18:35,933 INFO L226 Difference]: Without dead ends: 133 [2021-08-27 06:18:35,933 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 144.0ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:18:35,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-08-27 06:18:35,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 121. [2021-08-27 06:18:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 89 states have internal predecessors, (93), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2021-08-27 06:18:35,936 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 38 [2021-08-27 06:18:35,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:35,936 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2021-08-27 06:18:35,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:18:35,937 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2021-08-27 06:18:35,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-27 06:18:35,937 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:35,937 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:35,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:36,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:36,138 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:36,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:36,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1076819578, now seen corresponding path program 1 times [2021-08-27 06:18:36,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:36,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207854068] [2021-08-27 06:18:36,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:36,138 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:36,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:36,139 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:36,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-27 06:18:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:36,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:18:36,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:36,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:36,869 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:36,869 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:36,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207854068] [2021-08-27 06:18:36,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207854068] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:18:36,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:18:36,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-08-27 06:18:36,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576746942] [2021-08-27 06:18:36,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 06:18:36,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:36,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 06:18:36,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-08-27 06:18:36,872 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:37,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:37,358 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2021-08-27 06:18:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:18:37,359 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-08-27 06:18:37,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:37,359 INFO L225 Difference]: With dead ends: 133 [2021-08-27 06:18:37,359 INFO L226 Difference]: Without dead ends: 129 [2021-08-27 06:18:37,360 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 531.8ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-08-27 06:18:37,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-08-27 06:18:37,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-08-27 06:18:37,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 78 states have (on average 1.294871794871795) internal successors, (101), 97 states have internal predecessors, (101), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 134 transitions. [2021-08-27 06:18:37,362 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 134 transitions. Word has length 38 [2021-08-27 06:18:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:37,362 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 134 transitions. [2021-08-27 06:18:37,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-08-27 06:18:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 134 transitions. [2021-08-27 06:18:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-08-27 06:18:37,363 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:37,363 INFO L512 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:37,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:37,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:37,571 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:37,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:37,572 INFO L82 PathProgramCache]: Analyzing trace with hash -2145805818, now seen corresponding path program 2 times [2021-08-27 06:18:37,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:37,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949304832] [2021-08-27 06:18:37,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:18:37,573 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:37,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:37,573 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:37,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-27 06:18:37,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:18:37,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:18:37,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:18:37,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:37,883 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 [2021-08-27 06:18:38,178 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-27 06:18:38,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-27 06:18:38,894 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:38,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949304832] [2021-08-27 06:18:38,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949304832] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:38,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:38,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:18:38,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850053641] [2021-08-27 06:18:38,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:18:38,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:38,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:18:38,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:18:38,899 INFO L87 Difference]: Start difference. First operand 129 states and 134 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:18:40,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:40,145 INFO L93 Difference]: Finished difference Result 128 states and 133 transitions. [2021-08-27 06:18:40,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:18:40,146 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-08-27 06:18:40,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:40,148 INFO L225 Difference]: With dead ends: 128 [2021-08-27 06:18:40,148 INFO L226 Difference]: Without dead ends: 128 [2021-08-27 06:18:40,149 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 690.5ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:18:40,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-08-27 06:18:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-08-27 06:18:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 96 states have internal predecessors, (100), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:40,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2021-08-27 06:18:40,151 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 46 [2021-08-27 06:18:40,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:40,151 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2021-08-27 06:18:40,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:18:40,152 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2021-08-27 06:18:40,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-27 06:18:40,152 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:40,152 INFO L512 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:40,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:40,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:40,362 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:40,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:40,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2091386010, now seen corresponding path program 1 times [2021-08-27 06:18:40,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:40,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493143278] [2021-08-27 06:18:40,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:40,362 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:40,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:40,363 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:40,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-08-27 06:18:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:40,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 06:18:40,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:40,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:41,679 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:18:41,679 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:41,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493143278] [2021-08-27 06:18:41,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493143278] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-27 06:18:41,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 06:18:41,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-08-27 06:18:41,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805114293] [2021-08-27 06:18:41,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-08-27 06:18:41,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:41,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-08-27 06:18:41,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 06:18:41,681 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:18:42,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:42,052 INFO L93 Difference]: Finished difference Result 134 states and 139 transitions. [2021-08-27 06:18:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 06:18:42,066 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-08-27 06:18:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:42,067 INFO L225 Difference]: With dead ends: 134 [2021-08-27 06:18:42,067 INFO L226 Difference]: Without dead ends: 130 [2021-08-27 06:18:42,068 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 616.8ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-08-27 06:18:42,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-08-27 06:18:42,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-08-27 06:18:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 80 states have (on average 1.275) internal successors, (102), 98 states have internal predecessors, (102), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:42,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 135 transitions. [2021-08-27 06:18:42,073 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 135 transitions. Word has length 51 [2021-08-27 06:18:42,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:42,073 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 135 transitions. [2021-08-27 06:18:42,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:18:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 135 transitions. [2021-08-27 06:18:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:18:42,083 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:42,083 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:42,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:42,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:42,296 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:42,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:42,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1898067846, now seen corresponding path program 2 times [2021-08-27 06:18:42,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:42,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966865386] [2021-08-27 06:18:42,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 06:18:42,297 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:42,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:42,298 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:42,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-08-27 06:18:42,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-27 06:18:42,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 06:18:42,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 06:18:42,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:42,635 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 [2021-08-27 06:18:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:42,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:43,018 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:43,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966865386] [2021-08-27 06:18:43,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966865386] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:43,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:43,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-08-27 06:18:43,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058155291] [2021-08-27 06:18:43,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 06:18:43,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:43,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 06:18:43,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:18:43,019 INFO L87 Difference]: Start difference. First operand 130 states and 135 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:18:43,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:43,439 INFO L93 Difference]: Finished difference Result 140 states and 144 transitions. [2021-08-27 06:18:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 06:18:43,439 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-08-27 06:18:43,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:43,440 INFO L225 Difference]: With dead ends: 140 [2021-08-27 06:18:43,440 INFO L226 Difference]: Without dead ends: 140 [2021-08-27 06:18:43,440 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 145.3ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-08-27 06:18:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-08-27 06:18:43,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2021-08-27 06:18:43,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 80 states have (on average 1.25) internal successors, (100), 96 states have internal predecessors, (100), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 133 transitions. [2021-08-27 06:18:43,443 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 133 transitions. Word has length 53 [2021-08-27 06:18:43,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:43,443 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 133 transitions. [2021-08-27 06:18:43,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:18:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 133 transitions. [2021-08-27 06:18:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-27 06:18:43,444 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:43,444 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:43,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:43,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:43,652 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:43,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:43,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1898067845, now seen corresponding path program 1 times [2021-08-27 06:18:43,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:43,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458840087] [2021-08-27 06:18:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:43,653 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:43,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:43,655 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:43,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-08-27 06:18:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:43,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:18:43,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:44,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:18:44,345 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:44,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:45,069 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:45,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458840087] [2021-08-27 06:18:45,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458840087] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:45,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:45,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-08-27 06:18:45,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720758434] [2021-08-27 06:18:45,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 06:18:45,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:45,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 06:18:45,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-08-27 06:18:45,070 INFO L87 Difference]: Start difference. First operand 128 states and 133 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:18:46,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:46,303 INFO L93 Difference]: Finished difference Result 126 states and 131 transitions. [2021-08-27 06:18:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 06:18:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-08-27 06:18:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:46,305 INFO L225 Difference]: With dead ends: 126 [2021-08-27 06:18:46,305 INFO L226 Difference]: Without dead ends: 126 [2021-08-27 06:18:46,305 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 698.0ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-08-27 06:18:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-08-27 06:18:46,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-08-27 06:18:46,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 80 states have (on average 1.225) internal successors, (98), 94 states have internal predecessors, (98), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 131 transitions. [2021-08-27 06:18:46,307 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 131 transitions. Word has length 53 [2021-08-27 06:18:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:46,308 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 131 transitions. [2021-08-27 06:18:46,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-08-27 06:18:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 131 transitions. [2021-08-27 06:18:46,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-27 06:18:46,308 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:46,308 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:46,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:46,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:46,514 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:46,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:46,514 INFO L82 PathProgramCache]: Analyzing trace with hash 240730744, now seen corresponding path program 1 times [2021-08-27 06:18:46,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:46,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428249678] [2021-08-27 06:18:46,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:46,515 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:46,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:46,516 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:46,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-08-27 06:18:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:46,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:18:46,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:47,037 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:47,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:47,196 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:47,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:47,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428249678] [2021-08-27 06:18:47,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428249678] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:47,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:47,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-08-27 06:18:47,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759181394] [2021-08-27 06:18:47,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 06:18:47,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 06:18:47,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-27 06:18:47,200 INFO L87 Difference]: Start difference. First operand 126 states and 131 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:18:47,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:47,232 INFO L93 Difference]: Finished difference Result 128 states and 132 transitions. [2021-08-27 06:18:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 06:18:47,232 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-08-27 06:18:47,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:47,233 INFO L225 Difference]: With dead ends: 128 [2021-08-27 06:18:47,233 INFO L226 Difference]: Without dead ends: 126 [2021-08-27 06:18:47,234 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.1ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:18:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-08-27 06:18:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-08-27 06:18:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 80 states have (on average 1.2125) internal successors, (97), 93 states have internal predecessors, (97), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 130 transitions. [2021-08-27 06:18:47,236 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 130 transitions. Word has length 58 [2021-08-27 06:18:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:47,236 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 130 transitions. [2021-08-27 06:18:47,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-08-27 06:18:47,237 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 130 transitions. [2021-08-27 06:18:47,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-27 06:18:47,237 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:47,237 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:47,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:47,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:47,446 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:47,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:47,447 INFO L82 PathProgramCache]: Analyzing trace with hash -905772081, now seen corresponding path program 1 times [2021-08-27 06:18:47,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:47,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142441113] [2021-08-27 06:18:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:47,447 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:47,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:47,448 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:47,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-08-27 06:18:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:47,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 06:18:47,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:47,992 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:47,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:48,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:48,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142441113] [2021-08-27 06:18:48,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142441113] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:48,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:48,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-08-27 06:18:48,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506709419] [2021-08-27 06:18:48,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:18:48,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:48,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:18:48,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:18:48,239 INFO L87 Difference]: Start difference. First operand 126 states and 130 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:18:48,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:48,302 INFO L93 Difference]: Finished difference Result 130 states and 133 transitions. [2021-08-27 06:18:48,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 06:18:48,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2021-08-27 06:18:48,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:48,309 INFO L225 Difference]: With dead ends: 130 [2021-08-27 06:18:48,309 INFO L226 Difference]: Without dead ends: 126 [2021-08-27 06:18:48,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 61.9ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:18:48,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-08-27 06:18:48,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-08-27 06:18:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 80 states have (on average 1.2) internal successors, (96), 92 states have internal predecessors, (96), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 129 transitions. [2021-08-27 06:18:48,312 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 129 transitions. Word has length 63 [2021-08-27 06:18:48,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:48,312 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 129 transitions. [2021-08-27 06:18:48,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-08-27 06:18:48,312 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 129 transitions. [2021-08-27 06:18:48,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-08-27 06:18:48,313 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:48,313 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:48,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:48,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:48,513 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:48,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:48,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1773831866, now seen corresponding path program 1 times [2021-08-27 06:18:48,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:48,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830524751] [2021-08-27 06:18:48,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:48,514 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:48,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:48,522 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:48,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-08-27 06:18:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:49,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 06:18:49,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:49,059 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 [2021-08-27 06:18:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:49,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:49,688 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:49,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830524751] [2021-08-27 06:18:49,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830524751] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:49,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:49,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-08-27 06:18:49,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263054988] [2021-08-27 06:18:49,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 06:18:49,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:49,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 06:18:49,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-08-27 06:18:49,690 INFO L87 Difference]: Start difference. First operand 126 states and 129 transitions. Second operand has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:18:50,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:50,321 INFO L93 Difference]: Finished difference Result 140 states and 142 transitions. [2021-08-27 06:18:50,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:18:50,322 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 74 [2021-08-27 06:18:50,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:50,322 INFO L225 Difference]: With dead ends: 140 [2021-08-27 06:18:50,322 INFO L226 Difference]: Without dead ends: 140 [2021-08-27 06:18:50,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 119 SyntacticMatches, 13 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 279.8ms TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-08-27 06:18:50,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-08-27 06:18:50,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 124. [2021-08-27 06:18:50,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 80 states have (on average 1.175) internal successors, (94), 90 states have internal predecessors, (94), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:50,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 127 transitions. [2021-08-27 06:18:50,328 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 127 transitions. Word has length 74 [2021-08-27 06:18:50,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:50,328 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 127 transitions. [2021-08-27 06:18:50,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-08-27 06:18:50,329 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 127 transitions. [2021-08-27 06:18:50,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-08-27 06:18:50,329 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:50,329 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:50,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:50,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:50,538 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_atomic_sub_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:50,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:50,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1773831867, now seen corresponding path program 1 times [2021-08-27 06:18:50,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:50,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500772789] [2021-08-27 06:18:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:50,539 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:50,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:50,540 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:50,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-08-27 06:18:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:51,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-27 06:18:51,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:51,090 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 [2021-08-27 06:18:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:51,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:52,931 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:52,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500772789] [2021-08-27 06:18:52,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500772789] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:52,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:52,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-08-27 06:18:52,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111567861] [2021-08-27 06:18:52,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-08-27 06:18:52,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:52,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-08-27 06:18:52,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-08-27 06:18:52,932 INFO L87 Difference]: Start difference. First operand 124 states and 127 transitions. Second operand has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:18:54,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:54,720 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2021-08-27 06:18:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 06:18:54,721 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 74 [2021-08-27 06:18:54,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:54,721 INFO L225 Difference]: With dead ends: 122 [2021-08-27 06:18:54,721 INFO L226 Difference]: Without dead ends: 122 [2021-08-27 06:18:54,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1394.8ms TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-08-27 06:18:54,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-08-27 06:18:54,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-08-27 06:18:54,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 80 states have (on average 1.15) internal successors, (92), 88 states have internal predecessors, (92), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:54,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 125 transitions. [2021-08-27 06:18:54,725 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 125 transitions. Word has length 74 [2021-08-27 06:18:54,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:54,725 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 125 transitions. [2021-08-27 06:18:54,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:18:54,725 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 125 transitions. [2021-08-27 06:18:54,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-27 06:18:54,725 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:54,725 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:54,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-08-27 06:18:54,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:54,926 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:54,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:54,926 INFO L82 PathProgramCache]: Analyzing trace with hash 44814492, now seen corresponding path program 1 times [2021-08-27 06:18:54,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:54,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389608534] [2021-08-27 06:18:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:54,927 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:54,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:54,928 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:54,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-08-27 06:18:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:55,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 06:18:55,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:55,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:55,946 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:55,947 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:55,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389608534] [2021-08-27 06:18:55,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389608534] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:55,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:55,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-08-27 06:18:55,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441466002] [2021-08-27 06:18:55,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 06:18:55,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:55,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 06:18:55,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-08-27 06:18:55,949 INFO L87 Difference]: Start difference. First operand 122 states and 125 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-08-27 06:18:55,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:55,985 INFO L93 Difference]: Finished difference Result 124 states and 126 transitions. [2021-08-27 06:18:55,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:18:55,985 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 72 [2021-08-27 06:18:55,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:55,987 INFO L225 Difference]: With dead ends: 124 [2021-08-27 06:18:55,988 INFO L226 Difference]: Without dead ends: 122 [2021-08-27 06:18:55,988 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 58.9ms TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:18:55,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-08-27 06:18:55,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-08-27 06:18:55,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 80 states have (on average 1.1375) internal successors, (91), 88 states have internal predecessors, (91), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:55,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2021-08-27 06:18:55,994 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 72 [2021-08-27 06:18:55,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:55,994 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2021-08-27 06:18:55,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-08-27 06:18:55,994 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2021-08-27 06:18:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-27 06:18:55,995 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:55,995 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:56,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-08-27 06:18:56,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:56,204 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:56,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:56,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1162576382, now seen corresponding path program 1 times [2021-08-27 06:18:56,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:56,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143694242] [2021-08-27 06:18:56,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:56,206 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:56,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:56,207 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:56,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-08-27 06:18:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:56,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 06:18:56,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:56,846 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 [2021-08-27 06:18:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:57,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:18:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:18:57,925 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:18:57,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143694242] [2021-08-27 06:18:57,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143694242] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:18:57,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:18:57,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-08-27 06:18:57,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054101574] [2021-08-27 06:18:57,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 06:18:57,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:18:57,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 06:18:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-08-27 06:18:57,928 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:18:58,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:18:58,720 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2021-08-27 06:18:58,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:18:58,720 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 87 [2021-08-27 06:18:58,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:18:58,721 INFO L225 Difference]: With dead ends: 132 [2021-08-27 06:18:58,721 INFO L226 Difference]: Without dead ends: 132 [2021-08-27 06:18:58,721 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 135 SyntacticMatches, 19 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 657.3ms TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-08-27 06:18:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-08-27 06:18:58,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 120. [2021-08-27 06:18:58,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 80 states have (on average 1.1125) internal successors, (89), 86 states have internal predecessors, (89), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:18:58,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2021-08-27 06:18:58,725 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 87 [2021-08-27 06:18:58,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:18:58,725 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2021-08-27 06:18:58,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 4.375) internal successors, (70), 13 states have internal predecessors, (70), 9 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2021-08-27 06:18:58,725 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2021-08-27 06:18:58,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-27 06:18:58,726 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:18:58,726 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:18:58,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-08-27 06:18:58,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:18:58,936 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:18:58,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:18:58,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1162576381, now seen corresponding path program 1 times [2021-08-27 06:18:58,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:18:58,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470523110] [2021-08-27 06:18:58,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:18:58,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:18:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:18:58,939 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:18:58,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-08-27 06:18:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:18:59,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 44 conjunts are in the unsatisfiable core [2021-08-27 06:18:59,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:18:59,549 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 [2021-08-27 06:19:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:00,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:02,071 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:02,071 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:02,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470523110] [2021-08-27 06:19:02,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470523110] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:02,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:02,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-08-27 06:19:02,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187705109] [2021-08-27 06:19:02,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-08-27 06:19:02,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:02,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-08-27 06:19:02,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-08-27 06:19:02,073 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-08-27 06:19:04,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:04,764 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2021-08-27 06:19:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:19:04,765 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) Word has length 87 [2021-08-27 06:19:04,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:04,766 INFO L225 Difference]: With dead ends: 118 [2021-08-27 06:19:04,766 INFO L226 Difference]: Without dead ends: 118 [2021-08-27 06:19:04,766 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2101.5ms TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2021-08-27 06:19:04,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-08-27 06:19:04,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-08-27 06:19:04,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 80 states have (on average 1.0875) internal successors, (87), 84 states have internal predecessors, (87), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:19:04,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2021-08-27 06:19:04,768 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 87 [2021-08-27 06:19:04,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:04,768 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2021-08-27 06:19:04,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 32 states have (on average 2.75) internal successors, (88), 25 states have internal predecessors, (88), 16 states have call successors, (29), 14 states have call predecessors, (29), 6 states have return successors, (17), 10 states have call predecessors, (17), 6 states have call successors, (17) [2021-08-27 06:19:04,769 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2021-08-27 06:19:04,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-08-27 06:19:04,769 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:04,769 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:04,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:04,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:04,973 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:04,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:04,973 INFO L82 PathProgramCache]: Analyzing trace with hash 303545963, now seen corresponding path program 1 times [2021-08-27 06:19:04,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:04,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282291059] [2021-08-27 06:19:04,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:04,974 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:04,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:04,975 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:04,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-08-27 06:19:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:05,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 06:19:05,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:06,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:19:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-08-27 06:19:07,447 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:19:07,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282291059] [2021-08-27 06:19:07,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282291059] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:19:07,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:19:07,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-08-27 06:19:07,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062003646] [2021-08-27 06:19:07,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-08-27 06:19:07,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:19:07,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-08-27 06:19:07,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-08-27 06:19:07,448 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-08-27 06:19:08,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:19:08,771 INFO L93 Difference]: Finished difference Result 117 states and 119 transitions. [2021-08-27 06:19:08,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 06:19:08,772 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) Word has length 90 [2021-08-27 06:19:08,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:19:08,773 INFO L225 Difference]: With dead ends: 117 [2021-08-27 06:19:08,773 INFO L226 Difference]: Without dead ends: 117 [2021-08-27 06:19:08,773 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 136 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1145.5ms TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-08-27 06:19:08,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-08-27 06:19:08,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-08-27 06:19:08,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 80 states have (on average 1.075) internal successors, (86), 83 states have internal predecessors, (86), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-08-27 06:19:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2021-08-27 06:19:08,776 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 90 [2021-08-27 06:19:08,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:19:08,776 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2021-08-27 06:19:08,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 3.161290322580645) internal successors, (98), 24 states have internal predecessors, (98), 17 states have call successors, (33), 15 states have call predecessors, (33), 7 states have return successors, (18), 11 states have call predecessors, (18), 7 states have call successors, (18) [2021-08-27 06:19:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2021-08-27 06:19:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-08-27 06:19:08,777 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:19:08,777 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:19:08,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-08-27 06:19:08,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:19:08,985 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-08-27 06:19:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:19:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash 2031958406, now seen corresponding path program 1 times [2021-08-27 06:19:08,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:19:08,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144710036] [2021-08-27 06:19:08,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:19:08,986 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:19:08,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:19:08,990 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:19:08,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-08-27 06:19:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:19:09,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 115 conjunts are in the unsatisfiable core [2021-08-27 06:19:09,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:19:09,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-08-27 06:19:09,993 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-08-27 06:19:09,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-08-27 06:19:10,046 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-08-27 06:19:10,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-08-27 06:19:10,123 INFO L354 Elim1Store]: treesize reduction 116, result has 18.3 percent of original size [2021-08-27 06:19:10,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 53 [2021-08-27 06:19:10,228 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-08-27 06:19:10,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-08-27 06:19:10,371 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-08-27 06:19:10,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 81 [2021-08-27 06:19:10,554 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-08-27 06:19:10,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 96 [2021-08-27 06:19:10,804 INFO L354 Elim1Store]: treesize reduction 462, result has 12.2 percent of original size [2021-08-27 06:19:10,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 111 [2021-08-27 06:19:11,114 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-08-27 06:19:11,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2021-08-27 06:19:11,479 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-08-27 06:19:11,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 137 [2021-08-27 06:19:11,889 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:19:11,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:19:12,368 INFO L354 Elim1Store]: treesize reduction 964, result has 9.2 percent of original size [2021-08-27 06:19:12,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 136 treesize of output 165 [2021-08-27 06:19:12,974 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-08-27 06:19:12,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-08-27 06:19:13,687 INFO L354 Elim1Store]: treesize reduction 1270, result has 8.4 percent of original size [2021-08-27 06:19:13,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 157 treesize of output 192 [2021-08-27 06:19:14,437 INFO L354 Elim1Store]: treesize reduction 1452, result has 7.9 percent of original size [2021-08-27 06:19:14,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 168 treesize of output 206 [2021-08-27 06:19:15,298 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:19:15,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:19:19,307 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-08-27 06:19:21,370 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_1) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_2) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_4) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:19:21,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:21,500 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:19:21,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:19:24,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:19:24,505 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:19:24,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 121 [2021-08-27 06:19:26,127 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:19:26,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 92 treesize of output 40 [2021-08-27 06:19:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:19:26,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:21:41,740 WARN L207 SmtUtils]: Spent 2.19 m on a formula simplification that was a NOOP. DAG size: 152 [2021-08-27 06:21:53,338 WARN L207 SmtUtils]: Spent 10.12 s on a formula simplification that was a NOOP. DAG size: 106 [2021-08-27 06:21:59,107 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:21:59,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144710036] [2021-08-27 06:21:59,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:21:59,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [211275166] [2021-08-27 06:21:59,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:21:59,108 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:21:59,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:21:59,109 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:21:59,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-08-27 06:22:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:22:00,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 111 conjunts are in the unsatisfiable core [2021-08-27 06:22:00,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:22:00,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-08-27 06:22:01,610 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-08-27 06:22:01,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-08-27 06:22:01,668 INFO L354 Elim1Store]: treesize reduction 68, result has 20.9 percent of original size [2021-08-27 06:22:01,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 40 [2021-08-27 06:22:01,758 INFO L354 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2021-08-27 06:22:01,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-08-27 06:22:01,877 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-08-27 06:22:01,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-08-27 06:22:01,999 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-08-27 06:22:02,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 81 [2021-08-27 06:22:02,192 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-08-27 06:22:02,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 96 [2021-08-27 06:22:02,479 INFO L354 Elim1Store]: treesize reduction 430, result has 12.6 percent of original size [2021-08-27 06:22:02,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 91 treesize of output 108 [2021-08-27 06:22:02,927 INFO L354 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2021-08-27 06:22:02,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 122 [2021-08-27 06:22:03,338 INFO L354 Elim1Store]: treesize reduction 662, result has 10.8 percent of original size [2021-08-27 06:22:03,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 113 treesize of output 136 [2021-08-27 06:22:04,085 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:22:04,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:22:04,733 INFO L354 Elim1Store]: treesize reduction 942, result has 9.4 percent of original size [2021-08-27 06:22:04,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 135 treesize of output 164 [2021-08-27 06:22:05,540 INFO L354 Elim1Store]: treesize reduction 1138, result has 8.7 percent of original size [2021-08-27 06:22:05,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 148 treesize of output 180 [2021-08-27 06:22:06,403 INFO L354 Elim1Store]: treesize reduction 1296, result has 8.2 percent of original size [2021-08-27 06:22:06,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 158 treesize of output 193 [2021-08-27 06:22:07,471 INFO L354 Elim1Store]: treesize reduction 1480, result has 7.8 percent of original size [2021-08-27 06:22:07,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 169 treesize of output 207 [2021-08-27 06:22:08,794 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:22:08,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:22:11,770 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_21) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_22) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_23) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_24) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-08-27 06:22:13,820 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_21) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_22) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_23) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_24) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:22:13,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:13,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:22:14,017 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:22:14,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:22:15,165 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:22:15,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 121 treesize of output 121 [2021-08-27 06:22:18,892 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:22:18,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 92 treesize of output 136 [2021-08-27 06:22:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:22:19,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:24:40,893 WARN L207 SmtUtils]: Spent 2.16 m on a formula simplification that was a NOOP. DAG size: 152 [2021-08-27 06:24:48,696 WARN L207 SmtUtils]: Spent 6.43 s on a formula simplification that was a NOOP. DAG size: 110 [2021-08-27 06:24:58,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:24:58,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708291751] [2021-08-27 06:24:58,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:24:58,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:24:58,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:24:58,529 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:24:58,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-08-27 06:24:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:24:59,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 117 conjunts are in the unsatisfiable core [2021-08-27 06:24:59,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:00,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-08-27 06:25:00,884 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-08-27 06:25:00,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-08-27 06:25:00,957 INFO L354 Elim1Store]: treesize reduction 68, result has 20.9 percent of original size [2021-08-27 06:25:00,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 40 [2021-08-27 06:25:01,074 INFO L354 Elim1Store]: treesize reduction 116, result has 18.3 percent of original size [2021-08-27 06:25:01,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 53 [2021-08-27 06:25:01,182 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-08-27 06:25:01,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-08-27 06:25:01,343 INFO L354 Elim1Store]: treesize reduction 256, result has 14.7 percent of original size [2021-08-27 06:25:01,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 81 [2021-08-27 06:25:01,571 INFO L354 Elim1Store]: treesize reduction 352, result has 13.3 percent of original size [2021-08-27 06:25:01,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 96 [2021-08-27 06:25:01,841 INFO L354 Elim1Store]: treesize reduction 462, result has 12.2 percent of original size [2021-08-27 06:25:01,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 111 [2021-08-27 06:25:02,191 INFO L354 Elim1Store]: treesize reduction 586, result has 11.2 percent of original size [2021-08-27 06:25:02,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 106 treesize of output 126 [2021-08-27 06:25:02,710 INFO L354 Elim1Store]: treesize reduction 680, result has 10.5 percent of original size [2021-08-27 06:25:02,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 137 [2021-08-27 06:25:03,176 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-08-27 06:25:03,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-08-27 06:25:03,788 INFO L354 Elim1Store]: treesize reduction 942, result has 9.4 percent of original size [2021-08-27 06:25:03,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 135 treesize of output 164 [2021-08-27 06:25:04,609 INFO L354 Elim1Store]: treesize reduction 1138, result has 8.7 percent of original size [2021-08-27 06:25:04,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 148 treesize of output 180 [2021-08-27 06:25:05,454 INFO L354 Elim1Store]: treesize reduction 1296, result has 8.2 percent of original size [2021-08-27 06:25:05,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 158 treesize of output 193 [2021-08-27 06:25:06,491 INFO L354 Elim1Store]: treesize reduction 1480, result has 7.8 percent of original size [2021-08-27 06:25:06,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 169 treesize of output 207 [2021-08-27 06:25:07,864 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-08-27 06:25:07,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-08-27 06:25:10,783 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_41) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_42) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_43) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_44) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))))) is different from true [2021-08-27 06:25:12,814 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_42 (_ BitVec 32)) (v_DerPreprocessor_43 (_ BitVec 32)) (v_DerPreprocessor_41 (_ BitVec 32)) (v_DerPreprocessor_44 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_41) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_42) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_43) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_44) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))) |c_#memory_$Pointer$.offset|)) is different from true [2021-08-27 06:25:12,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:12,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:13,077 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:25:13,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-08-27 06:25:14,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 06:25:14,352 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:25:14,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 133 treesize of output 121 [2021-08-27 06:25:14,895 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-27 06:25:14,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 92 treesize of output 43 [2021-08-27 06:25:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:15,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:27:35,227 WARN L207 SmtUtils]: Spent 2.20 m on a formula simplification that was a NOOP. DAG size: 152 [2021-08-27 06:27:43,541 WARN L207 SmtUtils]: Spent 6.87 s on a formula simplification that was a NOOP. DAG size: 106 [2021-08-27 06:27:52,646 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:27:52,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:27:52,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:27:52,646 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:27:52,646 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:27:52,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,659 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,659 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,659 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,659 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,659 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,659 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:27:52,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:27:52,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:27:52,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-08-27 06:27:52,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-08-27 06:27:53,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-08-27 06:27:53,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:27:53,268 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:27:53,279 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-08-27 06:27:53,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:27:53 BoogieIcfgContainer [2021-08-27 06:27:53,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:27:53,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:27:53,299 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:27:53,300 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:27:53,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:18:29" (3/4) ... [2021-08-27 06:27:53,302 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:27:53,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:27:53,317 INFO L168 Benchmark]: Toolchain (without parser) took 565753.58 ms. Allocated memory was 54.5 MB in the beginning and 599.8 MB in the end (delta: 545.3 MB). Free memory was 35.5 MB in the beginning and 392.9 MB in the end (delta: -357.4 MB). Peak memory consumption was 186.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:27:53,318 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 44.0 MB. Free memory was 26.3 MB in the beginning and 26.2 MB in the end (delta: 43.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:27:53,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.37 ms. Allocated memory is still 54.5 MB. Free memory was 35.3 MB in the beginning and 32.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:27:53,318 INFO L168 Benchmark]: Boogie Preprocessor took 51.56 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 27.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:27:53,319 INFO L168 Benchmark]: RCFGBuilder took 952.25 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 45.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:27:53,319 INFO L168 Benchmark]: TraceAbstraction took 564253.24 ms. Allocated memory was 71.3 MB in the beginning and 599.8 MB in the end (delta: 528.5 MB). Free memory was 44.8 MB in the beginning and 392.9 MB in the end (delta: -348.1 MB). Peak memory consumption was 179.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:27:53,319 INFO L168 Benchmark]: Witness Printer took 17.25 ms. Allocated memory is still 599.8 MB. Free memory is still 392.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:27:53,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 44.0 MB. Free memory was 26.3 MB in the beginning and 26.2 MB in the end (delta: 43.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 472.37 ms. Allocated memory is still 54.5 MB. Free memory was 35.3 MB in the beginning and 32.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.56 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 27.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 952.25 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 45.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 564253.24 ms. Allocated memory was 71.3 MB in the beginning and 599.8 MB in the end (delta: 528.5 MB). Free memory was 44.8 MB in the beginning and 392.9 MB in the end (delta: -348.1 MB). Peak memory consumption was 179.2 MB. Max. memory is 16.1 GB. * Witness Printer took 17.25 ms. Allocated memory is still 599.8 MB. Free memory is still 392.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L763] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 331 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 564191.7ms, OverallIterations: 23, TraceHistogramMax: 16, EmptinessCheckTime: 27.7ms, AutomataDifference: 12419.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2248 SDtfs, 1152 SDslu, 16433 SDs, 0 SdLazy, 8636 SolverSat, 313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8800.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2216 GetRequests, 1768 SyntacticMatches, 71 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926 ImplicationChecksByTransitivity, 8928.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=0, InterpolantAutomatonStates: 264, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 106.5ms AutomataMinimizationTime, 22 MinimizatonAttempts, 79 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 273.7ms SsaConstructionTime, 1007.8ms SatisfiabilityAnalysisTime, 15432.4ms InterpolantComputationTime, 1086 NumberOfCodeBlocks, 1050 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2128 ConstructedInterpolants, 306 QuantifiedInterpolants, 9130 SizeOfPredicates, 94 NumberOfNonLiveVariables, 4649 ConjunctsInSsa, 323 ConjunctsInUnsatCore, 44 InterpolantComputations, 38 PerfectInterpolantSequences, 2972/3230 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:27:53,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...