./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound2.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_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/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_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/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_9c4c8454-ef56-4675-b6ca-6d748aecc61c/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 d92631353a4f4d056b02c2b6b023a3321018c7e8 ........................................................................................................................................................................................................................................................................................................................................................... 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 00:19:29,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:19:29,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:19:29,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:19:29,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:19:29,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:19:29,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:19:29,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:19:29,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:19:29,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:19:29,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:19:29,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:19:29,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:19:29,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:19:29,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:19:29,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:19:29,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:19:29,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:19:29,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:19:29,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:19:29,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:19:29,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:19:29,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:19:29,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:19:29,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:19:29,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:19:29,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:19:29,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:19:29,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:19:29,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:19:29,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:19:29,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:19:29,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:19:29,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:19:29,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:19:29,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:19:29,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:19:29,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:19:29,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:19:29,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:19:29,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:19:29,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:19:29,137 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:19:29,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:19:29,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:19:29,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:19:29,143 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:19:29,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:19:29,144 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:19:29,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:19:29,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:19:29,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:19:29,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:19:29,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:19:29,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:19:29,147 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:19:29,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:19:29,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:19:29,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:19:29,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:19:29,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:19:29,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:19:29,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:19:29,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:19:29,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:19:29,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:19:29,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:19:29,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:19:29,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:19:29,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:19:29,151 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_9c4c8454-ef56-4675-b6ca-6d748aecc61c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d92631353a4f4d056b02c2b6b023a3321018c7e8 [2021-10-11 00:19:29,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:19:29,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:19:29,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:19:29,497 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:19:29,498 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:19:29,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound2.c [2021-10-11 00:19:29,597 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC/data/1a5d11162/4f71eebfdaae4f60b2c46b22add9db60/FLAG7624f2859 [2021-10-11 00:19:30,093 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:19:30,094 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound2.c [2021-10-11 00:19:30,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC/data/1a5d11162/4f71eebfdaae4f60b2c46b22add9db60/FLAG7624f2859 [2021-10-11 00:19:30,465 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC/data/1a5d11162/4f71eebfdaae4f60b2c46b22add9db60 [2021-10-11 00:19:30,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:19:30,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:19:30,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:30,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:19:30,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:19:30,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f77602e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30, skipping insertion in model container [2021-10-11 00:19:30,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:19:30,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:19:30,746 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_9c4c8454-ef56-4675-b6ca-6d748aecc61c/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound2.c[555,568] [2021-10-11 00:19:30,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:30,775 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:19:30,789 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_9c4c8454-ef56-4675-b6ca-6d748aecc61c/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound2.c[555,568] [2021-10-11 00:19:30,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:19:30,820 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:19:30,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30 WrapperNode [2021-10-11 00:19:30,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:19:30,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:30,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:19:30,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:19:30,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:19:30,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:19:30,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:19:30,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:19:30,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... [2021-10-11 00:19:30,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:19:30,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:19:30,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:19:30,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:19:30,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/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 00:19:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:19:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:19:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:19:30,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:19:31,351 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:19:31,351 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 00:19:31,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:31 BoogieIcfgContainer [2021-10-11 00:19:31,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:19:31,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:19:31,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:19:31,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:19:31,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:19:30" (1/3) ... [2021-10-11 00:19:31,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769b9063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:31, skipping insertion in model container [2021-10-11 00:19:31,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:19:30" (2/3) ... [2021-10-11 00:19:31,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769b9063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:19:31, skipping insertion in model container [2021-10-11 00:19:31,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:31" (3/3) ... [2021-10-11 00:19:31,371 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound2.c [2021-10-11 00:19:31,399 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:19:31,411 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:19:31,421 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:19:31,465 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:19:31,465 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:19:31,465 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:19:31,466 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:19:31,466 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:19:31,466 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:19:31,466 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:19:31,466 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:19:31,480 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-10-11 00:19:31,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 00:19:31,485 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:31,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:19:31,486 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:31,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:31,490 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2021-10-11 00:19:31,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:31,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245713986] [2021-10-11 00:19:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:31,602 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:19:31,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [113821737] [2021-10-11 00:19:31,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/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 00:19:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:31,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 00:19:31,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:31,812 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 00:19:31,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245713986] [2021-10-11 00:19:31,813 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:19:31,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113821737] [2021-10-11 00:19:31,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:31,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:19:31,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761944640] [2021-10-11 00:19:31,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:31,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:31,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:31,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:31,881 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2021-10-11 00:19:32,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:32,017 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2021-10-11 00:19:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:19:32,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 00:19:32,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:32,030 INFO L225 Difference]: With dead ends: 39 [2021-10-11 00:19:32,031 INFO L226 Difference]: Without dead ends: 21 [2021-10-11 00:19:32,034 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 00:19:32,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-11 00:19:32,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2021-10-11 00:19:32,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 00:19:32,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-11 00:19:32,070 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2021-10-11 00:19:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:32,070 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-11 00:19:32,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:32,071 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-11 00:19:32,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:19:32,072 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:32,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:32,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 00:19:32,293 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:32,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:32,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1806862075, now seen corresponding path program 1 times [2021-10-11 00:19:32,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:32,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302929614] [2021-10-11 00:19:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:32,325 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:19:32,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073131186] [2021-10-11 00:19:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/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 00:19:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:19:32,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:19:32,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:19:32,452 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 00:19:32,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302929614] [2021-10-11 00:19:32,453 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 00:19:32,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073131186] [2021-10-11 00:19:32,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:19:32,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:19:32,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000427050] [2021-10-11 00:19:32,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:19:32,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:19:32,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:19:32,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:19:32,456 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2021-10-11 00:19:32,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:19:32,470 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-11 00:19:32,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:19:32,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:19:32,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:19:32,472 INFO L225 Difference]: With dead ends: 19 [2021-10-11 00:19:32,472 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 00:19:32,473 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 00:19:32,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 00:19:32,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-11 00:19:32,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 00:19:32,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-11 00:19:32,476 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2021-10-11 00:19:32,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:19:32,476 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-11 00:19:32,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:19:32,477 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-11 00:19:32,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:19:32,477 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:19:32,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:19:32,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:32,701 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:19:32,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:19:32,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1274494228, now seen corresponding path program 1 times [2021-10-11 00:19:32,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:19:32,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609624212] [2021-10-11 00:19:32,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:19:32,715 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 00:19:32,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145833127] [2021-10-11 00:19:32,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/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 00:19:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:32,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:19:32,810 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:19:32,846 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:19:32,848 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:19:33,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:19:33,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:19:33 BoogieIcfgContainer [2021-10-11 00:19:33,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:19:33,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:19:33,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:19:33,075 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:19:33,076 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:19:31" (3/4) ... [2021-10-11 00:19:33,078 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:19:33,119 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c4c8454-ef56-4675-b6ca-6d748aecc61c/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:19:33,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:19:33,121 INFO L168 Benchmark]: Toolchain (without parser) took 2649.09 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 53.8 MB in the beginning and 64.6 MB in the end (delta: -10.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:33,122 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 59.6 MB in the beginning and 59.6 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:19:33,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.79 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 53.5 MB in the beginning and 97.3 MB in the end (delta: -43.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:33,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.25 ms. Allocated memory is still 121.6 MB. Free memory was 97.3 MB in the beginning and 95.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:33,124 INFO L168 Benchmark]: Boogie Preprocessor took 22.19 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 94.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:19:33,124 INFO L168 Benchmark]: RCFGBuilder took 472.76 ms. Allocated memory is still 121.6 MB. Free memory was 94.7 MB in the beginning and 82.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:33,125 INFO L168 Benchmark]: TraceAbstraction took 1719.03 ms. Allocated memory is still 121.6 MB. Free memory was 82.1 MB in the beginning and 66.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:33,125 INFO L168 Benchmark]: Witness Printer took 44.37 ms. Allocated memory is still 121.6 MB. Free memory was 66.7 MB in the beginning and 64.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:19:33,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 59.6 MB in the beginning and 59.6 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 346.79 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 53.5 MB in the beginning and 97.3 MB in the end (delta: -43.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.25 ms. Allocated memory is still 121.6 MB. Free memory was 97.3 MB in the beginning and 95.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.19 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 94.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 472.76 ms. Allocated memory is still 121.6 MB. Free memory was 94.7 MB in the beginning and 82.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1719.03 ms. Allocated memory is still 121.6 MB. Free memory was 82.1 MB in the beginning and 66.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * Witness Printer took 44.37 ms. Allocated memory is still 121.6 MB. Free memory was 66.7 MB in the beginning and 64.6 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++<2 [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: 1.5s, 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...