./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC --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 8cc49ab9fd7daac186098b70e57b3712f40ea7f3 ........................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 00:19:18,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:19:18,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:19:18,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:19:18,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:19:18,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:19:18,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:19:18,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:19:18,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:19:18,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:19:18,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:19:18,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:19:18,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:19:18,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:19:18,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:19:18,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:19:18,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:19:18,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:19:18,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:19:18,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:19:18,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:19:18,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:19:18,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:19:18,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:19:18,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:19:18,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:19:18,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:19:18,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:19:18,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:19:18,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:19:18,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:19:18,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:19:18,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:19:18,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:19:18,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:19:18,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:19:18,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:19:18,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:19:18,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:19:18,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:19:18,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:19:18,735 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:19:18,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:19:18,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:19:18,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:19:18,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:19:18,801 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:19:18,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:19:18,802 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:19:18,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:19:18,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:19:18,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:19:18,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:19:18,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:19:18,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:19:18,813 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:19:18,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:19:18,814 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:19:18,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:19:18,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:19:18,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:19:18,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:19:18,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:19:18,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:19:18,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:19:18,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:19:18,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:19:18,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:19:18,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:19:18,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:19:18,817 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_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cc49ab9fd7daac186098b70e57b3712f40ea7f3 [2021-10-11 00:19:19,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:19:19,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:19:19,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:19:19,195 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:19:19,196 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:19:19,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c [2021-10-11 00:19:19,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/data/daed0f08b/957624f55e134fc68538f1a4a101e5d7/FLAG6e7f716ce [2021-10-11 00:19:19,828 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:19:19,828 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c [2021-10-11 00:19:19,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/data/daed0f08b/957624f55e134fc68538f1a4a101e5d7/FLAG6e7f716ce [2021-10-11 00:19:20,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/data/daed0f08b/957624f55e134fc68538f1a4a101e5d7 [2021-10-11 00:19:20,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:19:20,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:19:20,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:20,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:19:20,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:19:20,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b7a8d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20, skipping insertion in model container [2021-10-11 00:19:20,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:19:20,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:19:20,471 WARN L226 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_4387ad45-2cdf-4051-89f0-d97a242498d1/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c[555,568] [2021-10-11 00:19:20,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:20,497 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:19:20,511 WARN L226 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_4387ad45-2cdf-4051-89f0-d97a242498d1/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c[555,568] [2021-10-11 00:19:20,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:20,534 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:19:20,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20 WrapperNode [2021-10-11 00:19:20,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:20,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:20,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:19:20,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:19:20,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:20,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:19:20,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:19:20,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:19:20,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... [2021-10-11 00:19:20,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:19:20,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:19:20,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:19:20,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:19:20,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:19:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:19:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:19:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:19:20,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:19:21,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:19:21,135 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 00:19:21,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:21 BoogieIcfgContainer [2021-10-11 00:19:21,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:19:21,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:19:21,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:19:21,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:19:21,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:19:20" (1/3) ... [2021-10-11 00:19:21,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606d1ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:21, skipping insertion in model container [2021-10-11 00:19:21,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:20" (2/3) ... [2021-10-11 00:19:21,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606d1ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:21, skipping insertion in model container [2021-10-11 00:19:21,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:21" (3/3) ... [2021-10-11 00:19:21,162 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound10.c [2021-10-11 00:19:21,179 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:19:21,183 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:19:21,196 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:19:21,225 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:19:21,226 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:19:21,226 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:19:21,226 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:19:21,226 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:19:21,227 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:19:21,227 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:19:21,227 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:19:21,242 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-10-11 00:19:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 00:19:21,248 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:21,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:19:21,265 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:21,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:21,272 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2021-10-11 00:19:21,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:21,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423574659] [2021-10-11 00:19:21,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:21,461 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:19:21,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661810190] [2021-10-11 00:19:21,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:21,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 00:19:21,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:21,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:21,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423574659] [2021-10-11 00:19:21,720 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:19:21,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661810190] [2021-10-11 00:19:21,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:21,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:19:21,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383504010] [2021-10-11 00:19:21,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:21,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:21,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:21,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:21,761 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2021-10-11 00:19:21,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:21,901 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2021-10-11 00:19:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:19:21,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 00:19:21,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:21,914 INFO L225 Difference]: With dead ends: 39 [2021-10-11 00:19:21,915 INFO L226 Difference]: Without dead ends: 21 [2021-10-11 00:19:21,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:19:21,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-11 00:19:21,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2021-10-11 00:19:21,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 00:19:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-11 00:19:21,968 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2021-10-11 00:19:21,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:21,968 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-11 00:19:21,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:21,969 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-11 00:19:21,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:19:21,970 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:21,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:22,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 00:19:22,197 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:22,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:22,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1806862075, now seen corresponding path program 1 times [2021-10-11 00:19:22,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:22,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976726328] [2021-10-11 00:19:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:22,242 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:19:22,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2099344104] [2021-10-11 00:19:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:22,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:19:22,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:22,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:19:22,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976726328] [2021-10-11 00:19:22,433 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:19:22,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099344104] [2021-10-11 00:19:22,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:22,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:19:22,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115681234] [2021-10-11 00:19:22,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:22,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:22,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:22,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:22,438 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2021-10-11 00:19:22,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:22,454 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-11 00:19:22,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:19:22,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:19:22,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:22,455 INFO L225 Difference]: With dead ends: 19 [2021-10-11 00:19:22,456 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 00:19:22,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:22,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 00:19:22,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-11 00:19:22,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 00:19:22,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-11 00:19:22,461 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2021-10-11 00:19:22,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:22,462 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-11 00:19:22,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:22,462 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-11 00:19:22,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:19:22,463 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:22,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:22,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:22,688 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:22,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:22,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1274494228, now seen corresponding path program 1 times [2021-10-11 00:19:22,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:22,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65264660] [2021-10-11 00:19:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:22,706 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:19:22,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722184108] [2021-10-11 00:19:22,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:22,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:22,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:22,835 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:19:22,835 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:19:23,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:23,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:19:23 BoogieIcfgContainer [2021-10-11 00:19:23,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:19:23,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:19:23,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:19:23,097 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:19:23,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:21" (3/4) ... [2021-10-11 00:19:23,100 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:19:23,155 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4387ad45-2cdf-4051-89f0-d97a242498d1/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:19:23,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:19:23,157 INFO L168 Benchmark]: Toolchain (without parser) took 2962.84 ms. Allocated memory is still 113.2 MB. Free memory was 77.2 MB in the beginning and 66.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:23,158 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory was 93.5 MB in the beginning and 93.4 MB in the end (delta: 66.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:19:23,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.24 ms. Allocated memory is still 113.2 MB. Free memory was 77.1 MB in the beginning and 89.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:23,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.67 ms. Allocated memory is still 113.2 MB. Free memory was 89.3 MB in the beginning and 88.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:23,161 INFO L168 Benchmark]: Boogie Preprocessor took 24.64 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 86.9 MB in the end (delta: 718.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:19:23,161 INFO L168 Benchmark]: RCFGBuilder took 535.86 ms. Allocated memory is still 113.2 MB. Free memory was 86.7 MB in the beginning and 74.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:23,162 INFO L168 Benchmark]: TraceAbstraction took 1942.91 ms. Allocated memory is still 113.2 MB. Free memory was 73.7 MB in the beginning and 69.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:23,163 INFO L168 Benchmark]: Witness Printer took 59.31 ms. Allocated memory is still 113.2 MB. Free memory was 69.0 MB in the beginning and 66.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:23,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory was 93.5 MB in the beginning and 93.4 MB in the end (delta: 66.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.24 ms. Allocated memory is still 113.2 MB. Free memory was 77.1 MB in the beginning and 89.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.67 ms. Allocated memory is still 113.2 MB. Free memory was 89.3 MB in the beginning and 88.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.64 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 86.9 MB in the end (delta: 718.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 535.86 ms. Allocated memory is still 113.2 MB. Free memory was 86.7 MB in the beginning and 74.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1942.91 ms. Allocated memory is still 113.2 MB. Free memory was 73.7 MB in the beginning and 69.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Witness Printer took 59.31 ms. Allocated memory is still 113.2 MB. Free memory was 69.0 MB in the beginning and 66.9 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: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; VAL [counter=0] [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_uint() [L27] k = __VERIFIER_nondet_uint() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<10 [L16] COND FALSE !(!(cond)) VAL [counter=1] [L36] COND TRUE !(c < k) VAL [counter=1] [L45] x = x * (z - 1) [L16] COND TRUE !(cond) VAL [counter=1] [L18] reach_error() VAL [counter=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 8 SDslu, 42 SDs, 0 SdLazy, 24 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 4 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! Received shutdown request...