./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7ea68167b15ad5c2c66c983bd3a726f44f721c6 ................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7ea68167b15ad5c2c66c983bd3a726f44f721c6 .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:00:33,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:00:34,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:00:34,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:00:34,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:00:34,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:00:34,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:00:34,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:00:34,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:00:34,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:00:34,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:00:34,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:00:34,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:00:34,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:00:34,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:00:34,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:00:34,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:00:34,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:00:34,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:00:34,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:00:34,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:00:34,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:00:34,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:00:34,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:00:34,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:00:34,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:00:34,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:00:34,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:00:34,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:00:34,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:00:34,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:00:34,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:00:34,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:00:34,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:00:34,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:00:34,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:00:34,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:00:34,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:00:34,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:00:34,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:00:34,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:00:34,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:00:34,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:00:34,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:00:34,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:00:34,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:00:34,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:00:34,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:00:34,203 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:00:34,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:00:34,204 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:00:34,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:00:34,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:00:34,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:00:34,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:00:34,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:00:34,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:00:34,206 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:00:34,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:00:34,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:00:34,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:00:34,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:00:34,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:00:34,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:00:34,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:00:34,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:00:34,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:00:34,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:00:34,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:00:34,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:00:34,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:00:34,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:00:34,212 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_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7ea68167b15ad5c2c66c983bd3a726f44f721c6 [2021-10-13 00:00:34,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:00:34,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:00:34,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:00:34,526 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:00:34,527 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:00:34,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2021-10-13 00:00:34,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data/9a740ce11/48a13ce16b97413caf27b149e3219fce/FLAGb915fa821 [2021-10-13 00:00:35,068 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:00:35,072 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2021-10-13 00:00:35,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data/9a740ce11/48a13ce16b97413caf27b149e3219fce/FLAGb915fa821 [2021-10-13 00:00:35,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data/9a740ce11/48a13ce16b97413caf27b149e3219fce [2021-10-13 00:00:35,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:00:35,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:00:35,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:00:35,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:00:35,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:00:35,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ccfaebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35, skipping insertion in model container [2021-10-13 00:00:35,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:00:35,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:00:35,680 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c[709,722] [2021-10-13 00:00:35,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:00:35,715 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:00:35,727 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c[709,722] [2021-10-13 00:00:35,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:00:35,751 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:00:35,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35 WrapperNode [2021-10-13 00:00:35,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:00:35,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:00:35,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:00:35,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:00:35,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:00:35,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:00:35,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:00:35,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:00:35,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:00:35,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:00:35,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:00:35,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:00:35,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (1/1) ... [2021-10-13 00:00:35,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:00:35,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:00:35,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:00:35,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:00:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:00:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:00:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:00:35,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:00:36,208 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:00:36,222 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-13 00:00:36,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:00:36 BoogieIcfgContainer [2021-10-13 00:00:36,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:00:36,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:00:36,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:00:36,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:00:36,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:00:35" (1/3) ... [2021-10-13 00:00:36,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78eccb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:00:36, skipping insertion in model container [2021-10-13 00:00:36,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:35" (2/3) ... [2021-10-13 00:00:36,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78eccb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:00:36, skipping insertion in model container [2021-10-13 00:00:36,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:00:36" (3/3) ... [2021-10-13 00:00:36,234 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound10.c [2021-10-13 00:00:36,239 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:00:36,255 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 00:00:36,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:00:36,323 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=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2021-10-13 00:00:36,323 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 00:00:36,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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) [2021-10-13 00:00:36,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:00:36,343 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:00:36,344 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:00:36,344 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 00:00:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:00:36,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-13 00:00:36,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:00:36,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032615981] [2021-10-13 00:00:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:00:36,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:00:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:00:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:00:36,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:00:36,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032615981] [2021-10-13 00:00:36,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032615981] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:00:36,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:00:36,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:00:36,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549088207] [2021-10-13 00:00:36,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:00:36,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:00:36,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:00:36,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:00:36,584 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-13 00:00:36,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:00:36,607 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-13 00:00:36,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:00:36,608 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2021-10-13 00:00:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:00:36,618 INFO L225 Difference]: With dead ends: 63 [2021-10-13 00:00:36,619 INFO L226 Difference]: Without dead ends: 29 [2021-10-13 00:00:36,623 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:00:36,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-13 00:00:36,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-13 00:00:36,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 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) [2021-10-13 00:00:36,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-13 00:00:36,657 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-13 00:00:36,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:00:36,658 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-13 00:00:36,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-13 00:00:36,659 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-13 00:00:36,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:00:36,659 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:00:36,660 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:00:36,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:00:36,660 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 00:00:36,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:00:36,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-13 00:00:36,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:00:36,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102056578] [2021-10-13 00:00:36,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:00:36,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:00:36,696 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 00:00:36,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059293932] [2021-10-13 00:00:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:00:36,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:00:36,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:00:36,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:00:36,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:00:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:00:36,779 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:00:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:00:36,815 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:00:36,816 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:00:36,818 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:00:36,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:00:36,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:00:36,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:00:36,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:00:36,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:00:36,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:00:37,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:00:37,050 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:00:37,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:00:37 BoogieIcfgContainer [2021-10-13 00:00:37,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:00:37,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:00:37,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:00:37,078 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:00:37,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:00:36" (3/4) ... [2021-10-13 00:00:37,082 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:00:37,083 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:00:37,086 INFO L168 Benchmark]: Toolchain (without parser) took 1645.94 ms. Allocated memory is still 125.8 MB. Free memory was 62.3 MB in the beginning and 59.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:37,087 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:00:37,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.46 ms. Allocated memory is still 125.8 MB. Free memory was 62.0 MB in the beginning and 99.2 MB in the end (delta: -37.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:37,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.70 ms. Allocated memory is still 125.8 MB. Free memory was 98.7 MB in the beginning and 97.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:37,095 INFO L168 Benchmark]: Boogie Preprocessor took 23.79 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 96.1 MB in the end (delta: 980.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:00:37,096 INFO L168 Benchmark]: RCFGBuilder took 411.58 ms. Allocated memory is still 125.8 MB. Free memory was 96.1 MB in the beginning and 85.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:37,096 INFO L168 Benchmark]: TraceAbstraction took 849.59 ms. Allocated memory is still 125.8 MB. Free memory was 85.1 MB in the beginning and 59.8 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:00:37,097 INFO L168 Benchmark]: Witness Printer took 6.00 ms. Allocated memory is still 125.8 MB. Free memory is still 59.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:00:37,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.46 ms. Allocated memory is still 125.8 MB. Free memory was 62.0 MB in the beginning and 99.2 MB in the end (delta: -37.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.70 ms. Allocated memory is still 125.8 MB. Free memory was 98.7 MB in the beginning and 97.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.79 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 96.1 MB in the end (delta: 980.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 411.58 ms. Allocated memory is still 125.8 MB. Free memory was 96.1 MB in the beginning and 85.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 849.59 ms. Allocated memory is still 125.8 MB. Free memory was 85.1 MB in the beginning and 59.8 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 6.00 ms. Allocated memory is still 125.8 MB. Free memory is still 59.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 733.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.1ms, AutomataDifference: 57.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 33 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.7ms SsaConstructionTime, 54.5ms SatisfiabilityAnalysisTime, 59.7ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 00:00:37,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:00:39,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:00:39,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:00:39,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:00:39,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:00:39,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:00:39,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:00:39,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:00:39,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:00:39,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:00:39,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:00:39,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:00:39,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:00:39,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:00:39,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:00:39,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:00:39,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:00:39,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:00:39,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:00:39,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:00:39,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:00:39,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:00:39,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:00:39,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:00:39,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:00:39,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:00:39,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:00:39,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:00:39,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:00:39,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:00:39,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:00:39,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:00:39,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:00:39,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:00:39,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:00:39,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:00:39,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:00:39,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:00:39,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:00:39,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:00:39,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:00:39,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 00:00:39,687 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:00:39,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:00:39,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:00:39,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:00:39,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:00:39,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:00:39,691 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:00:39,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:00:39,692 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:00:39,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:00:39,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:00:39,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:00:39,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:00:39,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:00:39,694 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:00:39,694 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:00:39,695 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:00:39,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:00:39,695 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:00:39,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:00:39,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:00:39,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:00:39,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:00:39,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:00:39,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:00:39,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:00:39,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:00:39,697 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:00:39,698 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:00:39,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:00:39,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:00:39,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:00:39,699 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_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7ea68167b15ad5c2c66c983bd3a726f44f721c6 [2021-10-13 00:00:40,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:00:40,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:00:40,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:00:40,128 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:00:40,129 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:00:40,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2021-10-13 00:00:40,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data/bb451e102/29a61899491545769f2a452858f25ab0/FLAG504903369 [2021-10-13 00:00:40,689 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:00:40,693 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2021-10-13 00:00:40,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data/bb451e102/29a61899491545769f2a452858f25ab0/FLAG504903369 [2021-10-13 00:00:41,059 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/data/bb451e102/29a61899491545769f2a452858f25ab0 [2021-10-13 00:00:41,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:00:41,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:00:41,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:00:41,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:00:41,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:00:41,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346bb338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41, skipping insertion in model container [2021-10-13 00:00:41,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:00:41,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:00:41,280 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c[709,722] [2021-10-13 00:00:41,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:00:41,321 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:00:41,333 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c[709,722] [2021-10-13 00:00:41,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:00:41,368 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:00:41,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41 WrapperNode [2021-10-13 00:00:41,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:00:41,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:00:41,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:00:41,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:00:41,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:00:41,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:00:41,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:00:41,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:00:41,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:00:41,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:00:41,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:00:41,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:00:41,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (1/1) ... [2021-10-13 00:00:41,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:00:41,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:00:41,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:00:41,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:00:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:00:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:00:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:00:41,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:00:52,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:00:52,497 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-13 00:00:52,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:00:52 BoogieIcfgContainer [2021-10-13 00:00:52,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:00:52,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:00:52,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:00:52,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:00:52,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:00:41" (1/3) ... [2021-10-13 00:00:52,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe35a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:00:52, skipping insertion in model container [2021-10-13 00:00:52,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:00:41" (2/3) ... [2021-10-13 00:00:52,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe35a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:00:52, skipping insertion in model container [2021-10-13 00:00:52,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:00:52" (3/3) ... [2021-10-13 00:00:52,521 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound10.c [2021-10-13 00:00:52,524 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:00:52,525 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 00:00:52,573 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:00:52,579 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=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 [2021-10-13 00:00:52,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 00:00:52,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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) [2021-10-13 00:00:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:00:52,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:00:52,598 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:00:52,599 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 00:00:52,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:00:52,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-13 00:00:52,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:00:52,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039934399] [2021-10-13 00:00:52,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:00:52,614 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:00:52,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:00:52,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:00:52,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:00:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:00:52,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 00:00:52,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:00:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:00:52,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:00:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:00:52,873 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:00:52,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039934399] [2021-10-13 00:00:52,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039934399] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:00:52,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:00:52,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:00:52,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234327814] [2021-10-13 00:00:52,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:00:52,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:00:52,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:00:52,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:00:52,896 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-13 00:00:52,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:00:52,912 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-13 00:00:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:00:52,913 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2021-10-13 00:00:52,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:00:52,921 INFO L225 Difference]: With dead ends: 63 [2021-10-13 00:00:52,921 INFO L226 Difference]: Without dead ends: 29 [2021-10-13 00:00:52,924 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:00:52,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-13 00:00:52,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-13 00:00:52,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 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) [2021-10-13 00:00:52,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-13 00:00:52,951 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-13 00:00:52,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:00:52,951 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-13 00:00:52,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-13 00:00:52,952 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-13 00:00:52,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:00:52,952 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:00:52,952 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:00:52,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:00:53,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:00:53,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 00:00:53,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:00:53,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-13 00:00:53,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:00:53,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988715783] [2021-10-13 00:00:53,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:00:53,169 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:00:53,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:00:53,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:00:53,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:00:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:00:53,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:00:53,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:00:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:00:53,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:01:00,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:00,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:01:00,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988715783] [2021-10-13 00:01:00,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988715783] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:00,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:00,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 00:01:00,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793452763] [2021-10-13 00:01:00,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:01:00,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:01:00,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:01:00,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:01:00,255 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2021-10-13 00:01:28,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:28,688 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-10-13 00:01:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:01:28,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 [2021-10-13 00:01:28,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:01:28,690 INFO L225 Difference]: With dead ends: 34 [2021-10-13 00:01:28,690 INFO L226 Difference]: Without dead ends: 32 [2021-10-13 00:01:28,691 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 5725.7ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:01:28,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-13 00:01:28,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-13 00:01:28,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 30 states have internal predecessors, (31), 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) [2021-10-13 00:01:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-13 00:01:28,700 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 7 [2021-10-13 00:01:28,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:01:28,700 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-13 00:01:28,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2021-10-13 00:01:28,701 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-13 00:01:28,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 00:01:28,702 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:01:28,702 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:28,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:28,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:01:28,918 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 00:01:28,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:28,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-13 00:01:28,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:01:28,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048693652] [2021-10-13 00:01:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:28,920 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:01:28,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:01:28,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:01:28,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:01:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:29,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:01:29,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:01:31,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:31,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:01:37,634 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from false [2021-10-13 00:01:39,669 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from true [2021-10-13 00:02:05,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:05,694 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:02:05,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048693652] [2021-10-13 00:02:05,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048693652] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:05,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:05,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-13 00:02:05,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666753126] [2021-10-13 00:02:05,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 00:02:05,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:02:05,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:02:05,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=62, Unknown=2, NotChecked=16, Total=110 [2021-10-13 00:02:05,697 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-10-13 00:02:10,137 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv10 32))))) (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) .cse0 (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (or (and .cse0 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse1) (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (or (not .cse1) (not .cse0)))) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven) .cse1)) is different from true [2021-10-13 00:02:13,465 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven) (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv10 32)))) is different from true [2021-10-13 00:02:58,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:58,352 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-10-13 00:02:58,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:02:58,353 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 9 [2021-10-13 00:02:58,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:02:58,354 INFO L225 Difference]: With dead ends: 36 [2021-10-13 00:02:58,355 INFO L226 Difference]: Without dead ends: 34 [2021-10-13 00:02:58,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 25679.9ms TimeCoverageRelationStatistics Valid=41, Invalid=77, Unknown=4, NotChecked=60, Total=182 [2021-10-13 00:02:58,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-13 00:02:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-10-13 00:02:58,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 32 states have internal predecessors, (33), 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) [2021-10-13 00:02:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-10-13 00:02:58,364 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2021-10-13 00:02:58,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:02:58,365 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-10-13 00:02:58,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-10-13 00:02:58,365 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-10-13 00:02:58,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 00:02:58,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:02:58,366 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:58,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:58,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:02:58,587 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 00:02:58,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:58,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-13 00:02:58,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:02:58,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073254748] [2021-10-13 00:02:58,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:58,589 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:02:58,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:02:58,590 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:02:58,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:03:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:00,652 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:03:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:03:44,540 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-13 00:03:44,540 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:03:44,541 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:03:44,543 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:03:44,543 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:03:44,543 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:03:44,544 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:03:44,544 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:03:44,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:03:44,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:03:44,751 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:03:44,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:03:44 BoogieIcfgContainer [2021-10-13 00:03:44,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:03:44,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:03:44,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:03:44,776 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:03:44,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:00:52" (3/4) ... [2021-10-13 00:03:44,780 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 00:03:44,843 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:03:44,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:03:44,847 INFO L168 Benchmark]: Toolchain (without parser) took 183777.06 ms. Allocated memory is still 81.8 MB. Free memory was 65.0 MB in the beginning and 48.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:44,847 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:44,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.60 ms. Allocated memory is still 81.8 MB. Free memory was 64.8 MB in the beginning and 53.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:44,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.88 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 52.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:44,850 INFO L168 Benchmark]: Boogie Preprocessor took 47.79 ms. Allocated memory is still 81.8 MB. Free memory was 52.0 MB in the beginning and 50.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:44,853 INFO L168 Benchmark]: RCFGBuilder took 11053.91 ms. Allocated memory is still 81.8 MB. Free memory was 50.5 MB in the beginning and 63.9 MB in the end (delta: -13.5 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:44,855 INFO L168 Benchmark]: TraceAbstraction took 172258.60 ms. Allocated memory is still 81.8 MB. Free memory was 63.6 MB in the beginning and 50.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:44,855 INFO L168 Benchmark]: Witness Printer took 69.54 ms. Allocated memory is still 81.8 MB. Free memory was 50.2 MB in the beginning and 48.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:44,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.60 ms. Allocated memory is still 81.8 MB. Free memory was 64.8 MB in the beginning and 53.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.88 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 52.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.79 ms. Allocated memory is still 81.8 MB. Free memory was 52.0 MB in the beginning and 50.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11053.91 ms. Allocated memory is still 81.8 MB. Free memory was 50.5 MB in the beginning and 63.9 MB in the end (delta: -13.5 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 172258.60 ms. Allocated memory is still 81.8 MB. Free memory was 63.6 MB in the beginning and 50.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Witness Printer took 69.54 ms. Allocated memory is still 81.8 MB. Free memory was 50.2 MB in the beginning and 48.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND FALSE !(!(cond)) [L17] COND FALSE !(!(cond)) [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 172177.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 9.9ms, AutomataDifference: 81139.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 83 SDtfs, 19 SDslu, 110 SDs, 0 SdLazy, 77 SolverSat, 10 SolverUnsat, 28 SolverUnknown, 0 SolverNotchecked, 73482.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 31405.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 30.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 38.9ms SsaConstructionTime, 2950.6ms SatisfiabilityAnalysisTime, 43049.5ms InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 327 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:03:45,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7063088f-b2f3-4e72-8ed3-3422a2ed123e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...