./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1489855b7530896bdd176b2b4b6c40b97d8289986908954c704880efe20dffb0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:39:55,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:39:55,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:39:56,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:39:56,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:39:56,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:39:56,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:39:56,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:39:56,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:39:56,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:39:56,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:39:56,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:39:56,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:39:56,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:39:56,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:39:56,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:39:56,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:39:56,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:39:56,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:39:56,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:39:56,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:39:56,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:39:56,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:39:56,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:39:56,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:39:56,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:39:56,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:39:56,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:39:56,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:39:56,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:39:56,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:39:56,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:39:56,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:39:56,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:39:56,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:39:56,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:39:56,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:39:56,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:39:56,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:39:56,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:39:56,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:39:56,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-20 06:39:56,215 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:39:56,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:39:56,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:39:56,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:39:56,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:39:56,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:39:56,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:39:56,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:39:56,229 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:39:56,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:39:56,231 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:39:56,231 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:39:56,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:39:56,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:39:56,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:39:56,232 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 06:39:56,232 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 06:39:56,232 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 06:39:56,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:39:56,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:39:56,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:39:56,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:39:56,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:39:56,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:39:56,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:39:56,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:39:56,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:39:56,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:39:56,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:39:56,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:39:56,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:39:56,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1489855b7530896bdd176b2b4b6c40b97d8289986908954c704880efe20dffb0 [2021-11-20 06:39:56,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:39:56,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:39:56,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:39:56,677 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:39:56,679 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:39:56,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i [2021-11-20 06:39:56,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data/0ce7cb824/d622c9bedfb840ecaeebc78e79b7db84/FLAG24fd6ebb0 [2021-11-20 06:39:57,480 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:39:57,481 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i [2021-11-20 06:39:57,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data/0ce7cb824/d622c9bedfb840ecaeebc78e79b7db84/FLAG24fd6ebb0 [2021-11-20 06:39:57,769 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data/0ce7cb824/d622c9bedfb840ecaeebc78e79b7db84 [2021-11-20 06:39:57,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:39:57,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:39:57,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:39:57,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:39:57,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:39:57,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:39:57" (1/1) ... [2021-11-20 06:39:57,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501d7299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:39:57, skipping insertion in model container [2021-11-20 06:39:57,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:39:57" (1/1) ... [2021-11-20 06:39:57,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:39:57,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:39:58,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:39:58,214 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-20 06:39:58,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b10ba6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:39:58, skipping insertion in model container [2021-11-20 06:39:58,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:39:58,216 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-20 06:39:58,220 INFO L158 Benchmark]: Toolchain (without parser) took 444.73ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 53.9MB in the beginning and 94.0MB in the end (delta: -40.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-20 06:39:58,221 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 94.4MB. Free memory was 71.3MB in the beginning and 71.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:39:58,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.98ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 53.6MB in the beginning and 94.0MB in the end (delta: -40.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-20 06:39:58,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 94.4MB. Free memory was 71.3MB in the beginning and 71.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.98ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 53.6MB in the beginning and 94.0MB in the end (delta: -40.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 556]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1489855b7530896bdd176b2b4b6c40b97d8289986908954c704880efe20dffb0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:40:00,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:40:00,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:40:00,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:40:00,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:40:00,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:40:00,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:40:00,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:40:00,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:40:00,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:40:00,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:40:00,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:40:00,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:40:00,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:40:00,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:40:00,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:40:00,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:40:00,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:40:00,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:40:00,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:40:00,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:40:00,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:40:00,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:40:00,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:40:00,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:40:00,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:40:00,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:40:00,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:40:00,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:40:00,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:40:00,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:40:00,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:40:00,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:40:00,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:40:00,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:40:00,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:40:00,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:40:00,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:40:00,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:40:00,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:40:00,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:40:00,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-20 06:40:00,690 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:40:00,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:40:00,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:40:00,691 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:40:00,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:40:00,692 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:40:00,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:40:00,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:40:00,694 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:40:00,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:40:00,694 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:40:00,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:40:00,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:40:00,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:40:00,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:40:00,696 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 06:40:00,696 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 06:40:00,696 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 06:40:00,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:40:00,697 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:40:00,697 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 06:40:00,697 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 06:40:00,697 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:40:00,697 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:40:00,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:40:00,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:40:00,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:40:00,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:40:00,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:40:00,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:40:00,699 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 06:40:00,700 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 06:40:00,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:40:00,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 06:40:00,700 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1489855b7530896bdd176b2b4b6c40b97d8289986908954c704880efe20dffb0 [2021-11-20 06:40:01,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:40:01,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:40:01,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:40:01,165 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:40:01,166 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:40:01,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i [2021-11-20 06:40:01,255 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data/39be77f70/e8236408070c48f0868f4559c35b0046/FLAGa978fa3fe [2021-11-20 06:40:01,938 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:40:01,939 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i [2021-11-20 06:40:01,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data/39be77f70/e8236408070c48f0868f4559c35b0046/FLAGa978fa3fe [2021-11-20 06:40:02,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/data/39be77f70/e8236408070c48f0868f4559c35b0046 [2021-11-20 06:40:02,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:40:02,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:40:02,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:40:02,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:40:02,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:40:02,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:40:02" (1/1) ... [2021-11-20 06:40:02,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b83a7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:02, skipping insertion in model container [2021-11-20 06:40:02,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:40:02" (1/1) ... [2021-11-20 06:40:02,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:40:02,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:40:02,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:40:02,802 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-20 06:40:02,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:40:02,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:40:02,930 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:40:03,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:40:03,086 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:40:03,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03 WrapperNode [2021-11-20 06:40:03,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:40:03,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:40:03,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:40:03,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:40:03,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,177 INFO L137 Inliner]: procedures = 129, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2021-11-20 06:40:03,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:40:03,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:40:03,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:40:03,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:40:03,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:40:03,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:40:03,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:40:03,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:40:03,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (1/1) ... [2021-11-20 06:40:03,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:40:03,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:40:03,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:40:03,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:40:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 06:40:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:40:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure create_data [2021-11-20 06:40:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure create_data [2021-11-20 06:40:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:40:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:40:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:40:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 06:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 06:40:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:40:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:40:03,595 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:40:03,597 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:40:04,734 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:40:04,748 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:40:04,751 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-20 06:40:04,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:40:04 BoogieIcfgContainer [2021-11-20 06:40:04,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:40:04,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:40:04,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:40:04,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:40:04,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:40:02" (1/3) ... [2021-11-20 06:40:04,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353516b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:40:04, skipping insertion in model container [2021-11-20 06:40:04,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:40:03" (2/3) ... [2021-11-20 06:40:04,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353516b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:40:04, skipping insertion in model container [2021-11-20 06:40:04,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:40:04" (3/3) ... [2021-11-20 06:40:04,772 INFO L111 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test02-1.i [2021-11-20 06:40:04,783 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:40:04,783 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2021-11-20 06:40:04,850 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:40:04,863 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:40:04,864 INFO L340 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2021-11-20 06:40:04,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 94 states have (on average 2.148936170212766) internal successors, (202), 186 states have internal predecessors, (202), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:04,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 06:40:04,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:04,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 06:40:04,897 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:04,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:04,904 INFO L85 PathProgramCache]: Analyzing trace with hash 5083689, now seen corresponding path program 1 times [2021-11-20 06:40:04,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:04,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354989426] [2021-11-20 06:40:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:04,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:04,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:04,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:04,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 06:40:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:05,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 06:40:05,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:05,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:05,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:05,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354989426] [2021-11-20 06:40:05,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354989426] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:05,116 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:05,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 06:40:05,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277006640] [2021-11-20 06:40:05,129 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:05,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:40:05,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:05,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:40:05,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:40:05,173 INFO L87 Difference]: Start difference. First operand has 190 states, 94 states have (on average 2.148936170212766) internal successors, (202), 186 states have internal predecessors, (202), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:05,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:05,213 INFO L93 Difference]: Finished difference Result 190 states and 201 transitions. [2021-11-20 06:40:05,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:40:05,216 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-20 06:40:05,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:05,256 INFO L225 Difference]: With dead ends: 190 [2021-11-20 06:40:05,257 INFO L226 Difference]: Without dead ends: 188 [2021-11-20 06:40:05,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:40:05,265 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:05,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:40:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-20 06:40:05,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2021-11-20 06:40:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 93 states have (on average 2.096774193548387) internal successors, (195), 184 states have internal predecessors, (195), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:05,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 199 transitions. [2021-11-20 06:40:05,332 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 199 transitions. Word has length 4 [2021-11-20 06:40:05,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:05,332 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 199 transitions. [2021-11-20 06:40:05,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 199 transitions. [2021-11-20 06:40:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 06:40:05,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:05,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 06:40:05,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:05,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:05,548 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:05,549 INFO L85 PathProgramCache]: Analyzing trace with hash 5081478, now seen corresponding path program 1 times [2021-11-20 06:40:05,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:05,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858802457] [2021-11-20 06:40:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:05,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:05,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:05,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:05,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 06:40:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:05,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:40:05,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:05,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:40:05,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:40:05,836 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 06:40:05,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-20 06:40:05,859 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 06:40:05,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2021-11-20 06:40:05,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:05,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:06,645 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:06,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858802457] [2021-11-20 06:40:06,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858802457] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:06,655 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:06,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-20 06:40:06,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249139129] [2021-11-20 06:40:06,656 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:06,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:40:06,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:06,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:40:06,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:40:06,660 INFO L87 Difference]: Start difference. First operand 188 states and 199 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:07,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:07,546 INFO L93 Difference]: Finished difference Result 190 states and 202 transitions. [2021-11-20 06:40:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:40:07,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-20 06:40:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:07,552 INFO L225 Difference]: With dead ends: 190 [2021-11-20 06:40:07,552 INFO L226 Difference]: Without dead ends: 190 [2021-11-20 06:40:07,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:40:07,555 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 223 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:07,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 540 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 223 Unchecked, 0.8s Time] [2021-11-20 06:40:07,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-20 06:40:07,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-11-20 06:40:07,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 95 states have (on average 2.0842105263157893) internal successors, (198), 186 states have internal predecessors, (198), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:07,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 202 transitions. [2021-11-20 06:40:07,612 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 202 transitions. Word has length 4 [2021-11-20 06:40:07,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:07,612 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 202 transitions. [2021-11-20 06:40:07,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:07,613 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 202 transitions. [2021-11-20 06:40:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 06:40:07,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:07,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 06:40:07,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:07,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:07,836 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:07,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:07,837 INFO L85 PathProgramCache]: Analyzing trace with hash 5081477, now seen corresponding path program 1 times [2021-11-20 06:40:07,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:07,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917548742] [2021-11-20 06:40:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:07,838 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:07,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:07,842 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:07,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 06:40:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:07,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:40:07,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:07,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:40:08,058 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-20 06:40:08,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2021-11-20 06:40:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:08,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:08,175 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:08,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917548742] [2021-11-20 06:40:08,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917548742] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:08,176 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:08,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 06:40:08,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752198025] [2021-11-20 06:40:08,177 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:08,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:40:08,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:08,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:40:08,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:40:08,179 INFO L87 Difference]: Start difference. First operand 190 states and 202 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:08,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:08,663 INFO L93 Difference]: Finished difference Result 185 states and 196 transitions. [2021-11-20 06:40:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:40:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-20 06:40:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:08,670 INFO L225 Difference]: With dead ends: 185 [2021-11-20 06:40:08,670 INFO L226 Difference]: Without dead ends: 185 [2021-11-20 06:40:08,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:40:08,672 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 47 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:08,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 334 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 95 Invalid, 0 Unknown, 96 Unchecked, 0.4s Time] [2021-11-20 06:40:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-20 06:40:08,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2021-11-20 06:40:08,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 181 states have internal predecessors, (192), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:08,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 196 transitions. [2021-11-20 06:40:08,715 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 196 transitions. Word has length 4 [2021-11-20 06:40:08,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:08,716 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 196 transitions. [2021-11-20 06:40:08,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:08,716 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 196 transitions. [2021-11-20 06:40:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-20 06:40:08,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:08,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-20 06:40:08,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:08,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:08,918 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:08,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:08,919 INFO L85 PathProgramCache]: Analyzing trace with hash 157525902, now seen corresponding path program 1 times [2021-11-20 06:40:08,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:08,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565375157] [2021-11-20 06:40:08,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:08,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:08,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:08,924 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:08,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 06:40:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:08,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:40:08,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:09,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:40:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:09,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:09,038 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:09,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565375157] [2021-11-20 06:40:09,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565375157] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:09,039 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:09,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 06:40:09,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069457687] [2021-11-20 06:40:09,040 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:09,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:40:09,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:09,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:40:09,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:40:09,043 INFO L87 Difference]: Start difference. First operand 185 states and 196 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:09,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:09,544 INFO L93 Difference]: Finished difference Result 208 states and 220 transitions. [2021-11-20 06:40:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:40:09,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-20 06:40:09,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:09,547 INFO L225 Difference]: With dead ends: 208 [2021-11-20 06:40:09,548 INFO L226 Difference]: Without dead ends: 208 [2021-11-20 06:40:09,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:40:09,550 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 65 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:09,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 234 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 06:40:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-20 06:40:09,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 183. [2021-11-20 06:40:09,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 95 states have (on average 2.0) internal successors, (190), 179 states have internal predecessors, (190), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:09,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 194 transitions. [2021-11-20 06:40:09,588 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 194 transitions. Word has length 5 [2021-11-20 06:40:09,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:09,589 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 194 transitions. [2021-11-20 06:40:09,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 194 transitions. [2021-11-20 06:40:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-20 06:40:09,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:09,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-20 06:40:09,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:09,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:09,806 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:09,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:09,807 INFO L85 PathProgramCache]: Analyzing trace with hash 157525903, now seen corresponding path program 1 times [2021-11-20 06:40:09,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:09,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040494327] [2021-11-20 06:40:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:09,809 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:09,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:09,811 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:09,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 06:40:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:09,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:40:09,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:09,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:40:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:09,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:10,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:10,061 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:10,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040494327] [2021-11-20 06:40:10,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040494327] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:10,062 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:10,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-20 06:40:10,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212600061] [2021-11-20 06:40:10,063 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:10,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:40:10,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:10,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:40:10,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:40:10,065 INFO L87 Difference]: Start difference. First operand 183 states and 194 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:10,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:10,980 INFO L93 Difference]: Finished difference Result 181 states and 192 transitions. [2021-11-20 06:40:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:40:10,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-20 06:40:10,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:10,983 INFO L225 Difference]: With dead ends: 181 [2021-11-20 06:40:10,984 INFO L226 Difference]: Without dead ends: 181 [2021-11-20 06:40:10,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:40:10,985 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 12 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:10,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 370 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 06:40:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-20 06:40:10,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-20 06:40:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 95 states have (on average 1.9789473684210526) internal successors, (188), 177 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:11,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2021-11-20 06:40:11,002 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 5 [2021-11-20 06:40:11,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:11,002 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2021-11-20 06:40:11,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:11,003 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2021-11-20 06:40:11,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 06:40:11,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:11,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:11,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:11,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:11,217 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:11,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:11,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1058540239, now seen corresponding path program 1 times [2021-11-20 06:40:11,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:11,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479938543] [2021-11-20 06:40:11,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:11,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:11,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:11,222 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:11,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 06:40:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:11,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:40:11,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:11,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:11,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:11,337 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:11,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479938543] [2021-11-20 06:40:11,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479938543] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:11,338 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:11,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 06:40:11,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327710439] [2021-11-20 06:40:11,338 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:11,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:40:11,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:11,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:40:11,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:40:11,340 INFO L87 Difference]: Start difference. First operand 181 states and 192 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:11,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:11,713 INFO L93 Difference]: Finished difference Result 205 states and 217 transitions. [2021-11-20 06:40:11,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:40:11,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-20 06:40:11,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:11,715 INFO L225 Difference]: With dead ends: 205 [2021-11-20 06:40:11,715 INFO L226 Difference]: Without dead ends: 205 [2021-11-20 06:40:11,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:40:11,717 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 54 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:11,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 240 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:40:11,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-20 06:40:11,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 180. [2021-11-20 06:40:11,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 95 states have (on average 1.9684210526315788) internal successors, (187), 176 states have internal predecessors, (187), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 191 transitions. [2021-11-20 06:40:11,730 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 191 transitions. Word has length 7 [2021-11-20 06:40:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:11,731 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 191 transitions. [2021-11-20 06:40:11,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 191 transitions. [2021-11-20 06:40:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 06:40:11,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:11,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:11,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:11,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:11,949 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1058540240, now seen corresponding path program 1 times [2021-11-20 06:40:11,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:11,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540915608] [2021-11-20 06:40:11,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:11,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:11,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:11,952 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:11,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 06:40:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:12,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:40:12,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:12,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:12,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-20 06:40:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:12,315 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:12,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540915608] [2021-11-20 06:40:12,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540915608] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:12,316 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:12,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-20 06:40:12,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398066904] [2021-11-20 06:40:12,317 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:12,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:40:12,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:12,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:40:12,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:40:12,319 INFO L87 Difference]: Start difference. First operand 180 states and 191 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:12,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:12,613 INFO L93 Difference]: Finished difference Result 179 states and 190 transitions. [2021-11-20 06:40:12,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:40:12,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-20 06:40:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:12,616 INFO L225 Difference]: With dead ends: 179 [2021-11-20 06:40:12,616 INFO L226 Difference]: Without dead ends: 179 [2021-11-20 06:40:12,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:40:12,617 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 268 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:12,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 445 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:40:12,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-11-20 06:40:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2021-11-20 06:40:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 95 states have (on average 1.9578947368421054) internal successors, (186), 175 states have internal predecessors, (186), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:12,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 190 transitions. [2021-11-20 06:40:12,628 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 190 transitions. Word has length 7 [2021-11-20 06:40:12,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:12,629 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 190 transitions. [2021-11-20 06:40:12,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 190 transitions. [2021-11-20 06:40:12,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 06:40:12,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:12,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:12,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:12,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:12,844 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:12,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1322502935, now seen corresponding path program 1 times [2021-11-20 06:40:12,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:12,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003740153] [2021-11-20 06:40:12,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:12,846 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:12,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:12,847 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:12,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-20 06:40:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:12,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-20 06:40:12,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:12,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 06:40:13,015 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 06:40:13,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-20 06:40:13,170 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-20 06:40:13,171 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 45 treesize of output 44 [2021-11-20 06:40:13,210 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-20 06:40:13,210 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 32 treesize of output 31 [2021-11-20 06:40:13,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-20 06:40:13,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-20 06:40:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:13,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:23,881 WARN L227 SmtUtils]: Spent 7.26s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 06:40:25,995 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_append_~node~0#1.base_21| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_append_~node~0#1.base_21|))) (and (forall ((|ULTIMATE.start_append_#t~mem25#1.offset| (_ BitVec 32)) (|ULTIMATE.start_append_~node~0#1.offset| (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_append_~node~0#1.base_21| (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_append_~node~0#1.base_21|) (bvadd (_ bv4 32) |ULTIMATE.start_append_~node~0#1.offset|) |ULTIMATE.start_append_#t~mem25#1.offset|)) |c_ULTIMATE.start_main_~#list~0#1.base|) |c_ULTIMATE.start_main_~#list~0#1.offset|) (_ bv0 32))) (forall ((|ULTIMATE.start_append_~node~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_append_#t~mem25#1.base| (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_append_~node~0#1.base_21| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_append_~node~0#1.base_21|) (bvadd (_ bv4 32) |ULTIMATE.start_append_~node~0#1.offset|) |ULTIMATE.start_append_#t~mem25#1.base|)) |c_ULTIMATE.start_main_~#list~0#1.base|) |c_ULTIMATE.start_main_~#list~0#1.offset|) (_ bv0 32)))))) is different from false [2021-11-20 06:40:26,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:26,033 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:26,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003740153] [2021-11-20 06:40:26,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003740153] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:26,034 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:26,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-20 06:40:26,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292132777] [2021-11-20 06:40:26,035 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:26,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:40:26,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:26,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:40:26,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2021-11-20 06:40:26,037 INFO L87 Difference]: Start difference. First operand 179 states and 190 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:28,076 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_ULTIMATE.start_main_~#list~0#1.base|))) (_ bv1 1))) (= (_ bv0 32) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#list~0#1.base|) |c_ULTIMATE.start_main_~#list~0#1.offset|)) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#list~0#1.base|) |c_ULTIMATE.start_main_~#list~0#1.offset|) (_ bv0 32)) (forall ((|v_ULTIMATE.start_append_~node~0#1.base_21| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_append_~node~0#1.base_21|))) (and (forall ((|ULTIMATE.start_append_#t~mem25#1.offset| (_ BitVec 32)) (|ULTIMATE.start_append_~node~0#1.offset| (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_append_~node~0#1.base_21| (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_append_~node~0#1.base_21|) (bvadd (_ bv4 32) |ULTIMATE.start_append_~node~0#1.offset|) |ULTIMATE.start_append_#t~mem25#1.offset|)) |c_ULTIMATE.start_main_~#list~0#1.base|) |c_ULTIMATE.start_main_~#list~0#1.offset|) (_ bv0 32))) (forall ((|ULTIMATE.start_append_~node~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_append_#t~mem25#1.base| (_ BitVec 32))) (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_append_~node~0#1.base_21| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_append_~node~0#1.base_21|) (bvadd (_ bv4 32) |ULTIMATE.start_append_~node~0#1.offset|) |ULTIMATE.start_append_#t~mem25#1.base|)) |c_ULTIMATE.start_main_~#list~0#1.base|) |c_ULTIMATE.start_main_~#list~0#1.offset|) (_ bv0 32))))))) is different from false [2021-11-20 06:40:28,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:28,897 INFO L93 Difference]: Finished difference Result 184 states and 196 transitions. [2021-11-20 06:40:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:40:28,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-20 06:40:28,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:28,901 INFO L225 Difference]: With dead ends: 184 [2021-11-20 06:40:28,902 INFO L226 Difference]: Without dead ends: 184 [2021-11-20 06:40:28,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=22, Invalid=39, Unknown=3, NotChecked=26, Total=90 [2021-11-20 06:40:28,903 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 2 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 143 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:28,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 843 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 143 Unchecked, 0.8s Time] [2021-11-20 06:40:28,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-20 06:40:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 183. [2021-11-20 06:40:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 99 states have (on average 1.9191919191919191) internal successors, (190), 179 states have internal predecessors, (190), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:28,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 194 transitions. [2021-11-20 06:40:28,915 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 194 transitions. Word has length 10 [2021-11-20 06:40:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:28,916 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 194 transitions. [2021-11-20 06:40:28,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:28,916 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 194 transitions. [2021-11-20 06:40:28,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 06:40:28,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:28,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:28,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:29,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:29,131 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting create_dataErr0REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:29,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:29,132 INFO L85 PathProgramCache]: Analyzing trace with hash -388286564, now seen corresponding path program 1 times [2021-11-20 06:40:29,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:29,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537138982] [2021-11-20 06:40:29,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:29,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:29,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:29,136 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:29,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-20 06:40:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:29,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:40:29,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:29,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:29,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:29,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:29,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537138982] [2021-11-20 06:40:29,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537138982] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:29,352 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:29,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-20 06:40:29,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394707966] [2021-11-20 06:40:29,353 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:29,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:40:29,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:29,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:40:29,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:40:29,356 INFO L87 Difference]: Start difference. First operand 183 states and 194 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:29,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:29,420 INFO L93 Difference]: Finished difference Result 261 states and 276 transitions. [2021-11-20 06:40:29,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:40:29,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 06:40:29,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:29,423 INFO L225 Difference]: With dead ends: 261 [2021-11-20 06:40:29,423 INFO L226 Difference]: Without dead ends: 261 [2021-11-20 06:40:29,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:40:29,427 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 81 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:29,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 548 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:40:29,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-11-20 06:40:29,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 225. [2021-11-20 06:40:29,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 140 states have (on average 1.9428571428571428) internal successors, (272), 220 states have internal predecessors, (272), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:29,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 276 transitions. [2021-11-20 06:40:29,439 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 276 transitions. Word has length 12 [2021-11-20 06:40:29,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:29,440 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 276 transitions. [2021-11-20 06:40:29,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:29,440 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 276 transitions. [2021-11-20 06:40:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 06:40:29,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:29,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:29,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:29,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:29,655 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting create_dataErr4REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:29,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:29,655 INFO L85 PathProgramCache]: Analyzing trace with hash 848024593, now seen corresponding path program 1 times [2021-11-20 06:40:29,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:29,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070613848] [2021-11-20 06:40:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:29,656 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:29,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:29,657 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:29,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-20 06:40:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:29,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:40:29,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:29,793 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-20 06:40:29,794 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-20 06:40:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:29,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:29,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:29,850 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:29,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070613848] [2021-11-20 06:40:29,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070613848] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:29,850 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:29,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 06:40:29,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14299019] [2021-11-20 06:40:29,851 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:29,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:40:29,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:29,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:40:29,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:40:29,853 INFO L87 Difference]: Start difference. First operand 225 states and 276 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:30,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:30,394 INFO L93 Difference]: Finished difference Result 228 states and 272 transitions. [2021-11-20 06:40:30,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:40:30,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-20 06:40:30,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:30,397 INFO L225 Difference]: With dead ends: 228 [2021-11-20 06:40:30,397 INFO L226 Difference]: Without dead ends: 228 [2021-11-20 06:40:30,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:40:30,398 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 63 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:30,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 202 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 06:40:30,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-20 06:40:30,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 219. [2021-11-20 06:40:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 146 states have (on average 1.7945205479452055) internal successors, (262), 214 states have internal predecessors, (262), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:30,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 266 transitions. [2021-11-20 06:40:30,407 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 266 transitions. Word has length 13 [2021-11-20 06:40:30,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:30,408 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 266 transitions. [2021-11-20 06:40:30,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:30,408 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 266 transitions. [2021-11-20 06:40:30,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 06:40:30,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:30,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:30,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:30,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:30,623 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting create_dataErr5REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:30,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:30,624 INFO L85 PathProgramCache]: Analyzing trace with hash 848024594, now seen corresponding path program 1 times [2021-11-20 06:40:30,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:30,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989685079] [2021-11-20 06:40:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:30,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:30,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:30,627 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:30,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-20 06:40:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:30,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:40:30,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:30,767 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 06:40:30,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2021-11-20 06:40:30,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2021-11-20 06:40:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:30,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:30,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:30,917 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:30,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989685079] [2021-11-20 06:40:30,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989685079] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:30,918 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:30,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-20 06:40:30,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809754772] [2021-11-20 06:40:30,919 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:30,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:40:30,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:30,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:40:30,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:40:30,921 INFO L87 Difference]: Start difference. First operand 219 states and 266 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:32,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:32,029 INFO L93 Difference]: Finished difference Result 271 states and 334 transitions. [2021-11-20 06:40:32,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:40:32,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-20 06:40:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:32,034 INFO L225 Difference]: With dead ends: 271 [2021-11-20 06:40:32,034 INFO L226 Difference]: Without dead ends: 271 [2021-11-20 06:40:32,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:40:32,035 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 37 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:32,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 297 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 19 Unchecked, 1.1s Time] [2021-11-20 06:40:32,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-11-20 06:40:32,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 222. [2021-11-20 06:40:32,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 150 states have (on average 1.7733333333333334) internal successors, (266), 217 states have internal predecessors, (266), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 270 transitions. [2021-11-20 06:40:32,049 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 270 transitions. Word has length 13 [2021-11-20 06:40:32,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:32,050 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 270 transitions. [2021-11-20 06:40:32,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:32,050 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 270 transitions. [2021-11-20 06:40:32,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 06:40:32,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:32,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:32,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:32,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:32,266 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting create_dataErr11REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:32,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:32,267 INFO L85 PathProgramCache]: Analyzing trace with hash 503007255, now seen corresponding path program 1 times [2021-11-20 06:40:32,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:32,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644851321] [2021-11-20 06:40:32,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:32,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:32,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:32,268 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:32,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-20 06:40:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:32,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:40:32,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:32,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:32,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:32,426 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:32,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644851321] [2021-11-20 06:40:32,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644851321] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:32,427 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:32,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 06:40:32,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364620816] [2021-11-20 06:40:32,428 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:32,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:40:32,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:32,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:40:32,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:40:32,429 INFO L87 Difference]: Start difference. First operand 222 states and 270 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:32,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:32,487 INFO L93 Difference]: Finished difference Result 232 states and 280 transitions. [2021-11-20 06:40:32,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:40:32,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-20 06:40:32,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:32,489 INFO L225 Difference]: With dead ends: 232 [2021-11-20 06:40:32,490 INFO L226 Difference]: Without dead ends: 232 [2021-11-20 06:40:32,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:40:32,491 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 20 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:32,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 339 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:40:32,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-20 06:40:32,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2021-11-20 06:40:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 158 states have (on average 1.7468354430379747) internal successors, (276), 225 states have internal predecessors, (276), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:32,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 280 transitions. [2021-11-20 06:40:32,502 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 280 transitions. Word has length 16 [2021-11-20 06:40:32,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:32,502 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 280 transitions. [2021-11-20 06:40:32,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 280 transitions. [2021-11-20 06:40:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 06:40:32,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:32,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:32,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:32,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:32,718 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting create_dataErr7REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:32,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:32,718 INFO L85 PathProgramCache]: Analyzing trace with hash 503007305, now seen corresponding path program 1 times [2021-11-20 06:40:32,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:32,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697504921] [2021-11-20 06:40:32,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:32,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:32,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:32,721 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:32,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-20 06:40:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:32,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:40:32,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:32,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:32,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:33,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-20 06:40:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:33,061 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:33,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697504921] [2021-11-20 06:40:33,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697504921] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:33,062 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:33,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-20 06:40:33,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041700136] [2021-11-20 06:40:33,062 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:33,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:40:33,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:33,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:40:33,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:40:33,063 INFO L87 Difference]: Start difference. First operand 230 states and 280 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:34,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:34,040 INFO L93 Difference]: Finished difference Result 256 states and 304 transitions. [2021-11-20 06:40:34,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:40:34,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-20 06:40:34,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:34,053 INFO L225 Difference]: With dead ends: 256 [2021-11-20 06:40:34,053 INFO L226 Difference]: Without dead ends: 256 [2021-11-20 06:40:34,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:40:34,054 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 57 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:34,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 409 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 06:40:34,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-20 06:40:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 230. [2021-11-20 06:40:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 164 states have (on average 1.6585365853658536) internal successors, (272), 225 states have internal predecessors, (272), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:34,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 276 transitions. [2021-11-20 06:40:34,066 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 276 transitions. Word has length 16 [2021-11-20 06:40:34,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:34,067 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 276 transitions. [2021-11-20 06:40:34,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:34,067 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 276 transitions. [2021-11-20 06:40:34,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-20 06:40:34,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:34,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:34,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:34,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:34,283 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting create_dataErr8REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:34,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:34,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1586642756, now seen corresponding path program 1 times [2021-11-20 06:40:34,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:34,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420334024] [2021-11-20 06:40:34,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:34,284 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:34,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:34,285 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:34,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-20 06:40:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:34,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:40:34,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:34,416 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-20 06:40:34,416 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 1 case distinctions, treesize of input 9 treesize of output 14 [2021-11-20 06:40:34,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-20 06:40:34,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-20 06:40:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:34,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:34,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:34,682 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:34,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420334024] [2021-11-20 06:40:34,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420334024] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:34,683 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:34,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 06:40:34,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322622277] [2021-11-20 06:40:34,683 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:34,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:40:34,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:34,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:40:34,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:40:34,685 INFO L87 Difference]: Start difference. First operand 230 states and 276 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:35,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:35,710 INFO L93 Difference]: Finished difference Result 231 states and 274 transitions. [2021-11-20 06:40:35,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:40:35,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-20 06:40:35,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:35,714 INFO L225 Difference]: With dead ends: 231 [2021-11-20 06:40:35,714 INFO L226 Difference]: Without dead ends: 231 [2021-11-20 06:40:35,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:40:35,715 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 5 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:35,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 519 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 06:40:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-20 06:40:35,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2021-11-20 06:40:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 164 states have (on average 1.646341463414634) internal successors, (270), 225 states have internal predecessors, (270), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 274 transitions. [2021-11-20 06:40:35,726 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 274 transitions. Word has length 17 [2021-11-20 06:40:35,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:35,726 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 274 transitions. [2021-11-20 06:40:35,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:35,727 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 274 transitions. [2021-11-20 06:40:35,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-20 06:40:35,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:35,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:35,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:35,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:35,942 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting create_dataErr9REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:35,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:35,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1586642755, now seen corresponding path program 1 times [2021-11-20 06:40:35,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:35,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549008311] [2021-11-20 06:40:35,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:35,943 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:35,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:35,944 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:35,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-20 06:40:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:36,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:40:36,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:36,113 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-20 06:40:36,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-20 06:40:36,181 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 28 treesize of output 24 [2021-11-20 06:40:36,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 06:40:36,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 36 [2021-11-20 06:40:36,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-20 06:40:36,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:36,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:37,136 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:37,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549008311] [2021-11-20 06:40:37,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549008311] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:40:37,137 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:40:37,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-20 06:40:37,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412847535] [2021-11-20 06:40:37,137 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:40:37,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:40:37,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:40:37,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:40:37,139 INFO L87 Difference]: Start difference. First operand 230 states and 274 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:40,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:40,450 INFO L93 Difference]: Finished difference Result 230 states and 272 transitions. [2021-11-20 06:40:40,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:40:40,452 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-20 06:40:40,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:40,454 INFO L225 Difference]: With dead ends: 230 [2021-11-20 06:40:40,454 INFO L226 Difference]: Without dead ends: 230 [2021-11-20 06:40:40,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:40:40,456 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 8 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:40,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 601 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-20 06:40:40,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-20 06:40:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-11-20 06:40:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 164 states have (on average 1.6341463414634145) internal successors, (268), 225 states have internal predecessors, (268), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 272 transitions. [2021-11-20 06:40:40,466 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 272 transitions. Word has length 17 [2021-11-20 06:40:40,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:40,467 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 272 transitions. [2021-11-20 06:40:40,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 272 transitions. [2021-11-20 06:40:40,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 06:40:40,468 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:40,468 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:40,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:40,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:40,682 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting create_dataErr8REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:40,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:40,683 INFO L85 PathProgramCache]: Analyzing trace with hash 509612229, now seen corresponding path program 1 times [2021-11-20 06:40:40,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:40,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616179675] [2021-11-20 06:40:40,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:40,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:40,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:40,686 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:40,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-20 06:40:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:40,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:40:40,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:40,895 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-20 06:40:40,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-20 06:40:40,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-20 06:40:41,171 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-20 06:40:41,172 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 46 [2021-11-20 06:40:41,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2021-11-20 06:40:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 06:40:41,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:40:46,890 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (create_data_~counter~0 (_ BitVec 32)) (|create_data_#t~mem9.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse2 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (store |c_#memory_$Pointer$.base| .cse0 (let ((.cse1 (bvmul create_data_~counter~0 (_ bv4 32)))) (store (store (store (store (select |c_#memory_$Pointer$.base| .cse0) (bvadd |create_data_#t~mem9.offset| .cse1) v_DerPreprocessor_1) (bvadd |create_data_#t~mem9.offset| .cse1 (_ bv1 32)) v_DerPreprocessor_2) (bvadd |create_data_#t~mem9.offset| (_ bv2 32) .cse1) v_DerPreprocessor_3) (bvadd |create_data_#t~mem9.offset| (_ bv3 32) .cse1) v_DerPreprocessor_4)))) c_create_data_~data~0.base) .cse2))))))) (_ bv1 1)))) is different from false [2021-11-20 06:40:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-20 06:40:50,076 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:40:50,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616179675] [2021-11-20 06:40:50,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616179675] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:40:50,077 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:40:50,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2021-11-20 06:40:50,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698387174] [2021-11-20 06:40:50,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 06:40:50,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 06:40:50,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:40:50,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 06:40:50,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=64, Unknown=2, NotChecked=16, Total=110 [2021-11-20 06:40:50,079 INFO L87 Difference]: Start difference. First operand 230 states and 272 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:40:51,288 INFO L93 Difference]: Finished difference Result 237 states and 276 transitions. [2021-11-20 06:40:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:40:51,288 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-20 06:40:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:40:51,290 INFO L225 Difference]: With dead ends: 237 [2021-11-20 06:40:51,290 INFO L226 Difference]: Without dead ends: 237 [2021-11-20 06:40:51,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=34, Invalid=78, Unknown=2, NotChecked=18, Total=132 [2021-11-20 06:40:51,291 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 54 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 350 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:40:51,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 707 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 249 Invalid, 0 Unknown, 350 Unchecked, 1.0s Time] [2021-11-20 06:40:51,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-20 06:40:51,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 229. [2021-11-20 06:40:51,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 164 states have (on average 1.6219512195121952) internal successors, (266), 224 states have internal predecessors, (266), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:40:51,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 270 transitions. [2021-11-20 06:40:51,299 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 270 transitions. Word has length 22 [2021-11-20 06:40:51,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:40:51,299 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 270 transitions. [2021-11-20 06:40:51,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:40:51,300 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 270 transitions. [2021-11-20 06:40:51,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 06:40:51,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:40:51,301 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:40:51,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-20 06:40:51,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:40:51,513 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting create_dataErr9REQUIRES_VIOLATION === [create_dataErr0REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr3REQUIRES_VIOLATION (and 88 more)] === [2021-11-20 06:40:51,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:40:51,513 INFO L85 PathProgramCache]: Analyzing trace with hash 509612230, now seen corresponding path program 1 times [2021-11-20 06:40:51,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:40:51,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353831983] [2021-11-20 06:40:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:40:51,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:40:51,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:40:51,516 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:40:51,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ad7e02-4dbb-4465-aa9c-634b55ceedf2/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-20 06:40:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:40:51,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-20 06:40:51,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:40:51,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2021-11-20 06:40:51,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-11-20 06:40:51,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-20 06:40:51,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 06:40:52,242 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-20 06:40:52,242 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 241 treesize of output 122 [2021-11-20 06:40:52,396 INFO L354 Elim1Store]: treesize reduction 714, result has 1.2 percent of original size [2021-11-20 06:40:52,397 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 4 case distinctions, treesize of input 131 treesize of output 24 [2021-11-20 06:40:52,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2021-11-20 06:40:52,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-11-20 06:40:52,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:40:52,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:41:06,223 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (|create_data_#t~mem9.offset| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32)))) (let ((.cse0 (let ((.cse3 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (select (select (let ((.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (store |c_#memory_$Pointer$.offset| .cse2 (store (store (store (store (select |c_#memory_$Pointer$.offset| .cse2) (bvadd |create_data_#t~mem9.offset| .cse1) v_DerPreprocessor_5) (bvadd |create_data_#t~mem9.offset| .cse1 (_ bv1 32)) v_DerPreprocessor_6) (bvadd |create_data_#t~mem9.offset| (_ bv2 32) .cse1) v_DerPreprocessor_7) (bvadd |create_data_#t~mem9.offset| (_ bv3 32) .cse1) v_DerPreprocessor_8))) c_create_data_~data~0.base) .cse3)))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1))))) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (|create_data_#t~mem9.offset| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse10 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse9 (bvadd c_create_data_~data~0.offset (_ bv4 32)))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse9)) (.cse5 (bvadd |create_data_#t~mem9.offset| .cse10)) (.cse6 (bvadd |create_data_#t~mem9.offset| .cse10 (_ bv1 32))) (.cse7 (bvadd |create_data_#t~mem9.offset| (_ bv2 32) .cse10)) (.cse8 (bvadd |create_data_#t~mem9.offset| (_ bv3 32) .cse10))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse4 (store (store (store (store (select |c_#memory_$Pointer$.offset| .cse4) .cse5 v_DerPreprocessor_5) .cse6 v_DerPreprocessor_6) .cse7 v_DerPreprocessor_7) .cse8 v_DerPreprocessor_8)) c_create_data_~data~0.base) .cse9) .cse10) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse4 (store (store (store (store (select |c_#memory_$Pointer$.base| .cse4) .cse5 v_DerPreprocessor_9) .cse6 v_DerPreprocessor_10) .cse7 v_DerPreprocessor_11) .cse8 v_DerPreprocessor_12)) c_create_data_~data~0.base) .cse9))))))) is different from false