./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91c207b4b9ec9497b682edea4de56d410c70b882e6c03e91b56844bba1af20ff ................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:08:15,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:08:15,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:08:15,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:08:15,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:08:15,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:08:15,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:08:15,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:08:15,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:08:15,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:08:15,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:08:15,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:08:15,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:08:15,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:08:15,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:08:15,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:08:15,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:08:15,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:08:15,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:08:16,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:08:16,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:08:16,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:08:16,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:08:16,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:08:16,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:08:16,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:08:16,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:08:16,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:08:16,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:08:16,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:08:16,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:08:16,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:08:16,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:08:16,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:08:16,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:08:16,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:08:16,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:08:16,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:08:16,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:08:16,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:08:16,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:08:16,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:08:16,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:08:16,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:08:16,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:08:16,092 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:08:16,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:08:16,093 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:08:16,094 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:08:16,094 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:08:16,094 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:08:16,094 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:08:16,096 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:08:16,096 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:08:16,097 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:08:16,097 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:08:16,097 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:08:16,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:08:16,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:08:16,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:08:16,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:08:16,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:08:16,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:08:16,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:08:16,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:08:16,100 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:08:16,101 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:08:16,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:08:16,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:08:16,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:08:16,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:08:16,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:08:16,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:08:16,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:08:16,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:08:16,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:08:16,106 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:08:16,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:08:16,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:08:16,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:08:16,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:08:16,107 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c207b4b9ec9497b682edea4de56d410c70b882e6c03e91b56844bba1af20ff [2021-10-24 10:08:16,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:08:16,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:08:16,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:08:16,588 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:08:16,589 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:08:16,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c [2021-10-24 10:08:16,676 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/data/23ba1bcee/d3c63fd8b612457b86d96d5f87f44118/FLAG57983e936 [2021-10-24 10:08:17,275 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:08:17,275 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c [2021-10-24 10:08:17,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/data/23ba1bcee/d3c63fd8b612457b86d96d5f87f44118/FLAG57983e936 [2021-10-24 10:08:17,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/data/23ba1bcee/d3c63fd8b612457b86d96d5f87f44118 [2021-10-24 10:08:17,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:08:17,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:08:17,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:08:17,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:08:17,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:08:17,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:08:17" (1/1) ... [2021-10-24 10:08:17,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33004189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:17, skipping insertion in model container [2021-10-24 10:08:17,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:08:17" (1/1) ... [2021-10-24 10:08:17,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:08:17,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:08:17,887 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_5223cf43-46b5-42fe-8608-cdefe66a7d8d/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c[525,538] [2021-10-24 10:08:17,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:08:17,947 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:08:17,965 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_5223cf43-46b5-42fe-8608-cdefe66a7d8d/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound1.c[525,538] [2021-10-24 10:08:17,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:08:18,006 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:08:18,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18 WrapperNode [2021-10-24 10:08:18,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:08:18,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:08:18,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:08:18,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:08:18,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:08:18,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:08:18,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:08:18,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:08:18,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:08:18,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:08:18,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:08:18,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:08:18,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (1/1) ... [2021-10-24 10:08:18,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:08:18,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:08:18,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:08:18,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:08:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:08:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:08:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:08:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:08:18,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:08:18,591 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-24 10:08:18,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:08:18 BoogieIcfgContainer [2021-10-24 10:08:18,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:08:18,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:08:18,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:08:18,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:08:18,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:08:17" (1/3) ... [2021-10-24 10:08:18,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9e3237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:08:18, skipping insertion in model container [2021-10-24 10:08:18,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:08:18" (2/3) ... [2021-10-24 10:08:18,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9e3237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:08:18, skipping insertion in model container [2021-10-24 10:08:18,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:08:18" (3/3) ... [2021-10-24 10:08:18,605 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound1.c [2021-10-24 10:08:18,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:08:18,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-24 10:08:18,716 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:08:18,725 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, mAutomataTypeConcurrency=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 [2021-10-24 10:08:18,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-24 10:08:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 10 states have (on average 1.7) internal successors, (17), 12 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) [2021-10-24 10:08:18,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 10:08:18,748 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:08:18,749 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 10:08:18,749 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:08:18,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:08:18,756 INFO L82 PathProgramCache]: Analyzing trace with hash 72255189, now seen corresponding path program 1 times [2021-10-24 10:08:18,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:08:18,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882499809] [2021-10-24 10:08:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:18,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:08:18,865 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-24 10:08:18,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408643948] [2021-10-24 10:08:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:08:18,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:08:18,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:08:18,870 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:08:18,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-24 10:08:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:08:18,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 10:08:18,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:08:19,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:19,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:08:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:08:19,357 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:08:19,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882499809] [2021-10-24 10:08:19,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-24 10:08:19,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408643948] [2021-10-24 10:08:19,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408643948] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:08:19,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:08:19,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:08:19,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477174571] [2021-10-24 10:08:19,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:08:19,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:08:19,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:08:19,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:08:19,398 INFO L87 Difference]: Start difference. First operand has 13 states, 10 states have (on average 1.7) internal successors, (17), 12 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) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:08:19,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:08:19,552 INFO L93 Difference]: Finished difference Result 30 states and 42 transitions. [2021-10-24 10:08:19,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:08:19,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-24 10:08:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:08:19,562 INFO L225 Difference]: With dead ends: 30 [2021-10-24 10:08:19,563 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 10:08:19,567 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 77.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:08:19,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 10:08:19,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 10:08:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-24 10:08:19,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 10:08:19,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-24 10:08:19,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:08:19,615 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 10:08:19,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:08:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 10:08:19,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 10:08:19,620 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:08:19,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:08:19,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:08:19,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-24 10:08:19,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 10:08:19,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:08:19,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:08:19,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:08:19,973 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 10:08:19,974 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-24 10:08:19,975 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-24 10:08:19,976 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 37 38) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0)) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) [2021-10-24 10:08:19,976 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-24 10:08:19,977 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 14 20) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0)) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) [2021-10-24 10:08:19,977 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 34 43) no Hoare annotation was computed. [2021-10-24 10:08:19,978 INFO L853 garLoopResultBuilder]: At program point L34-3(lines 34 43) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~az~0) (= ULTIMATE.start_main_~y~0 1)) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0)) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)))) [2021-10-24 10:08:19,978 INFO L857 garLoopResultBuilder]: For program point L34-4(lines 34 43) no Hoare annotation was computed. [2021-10-24 10:08:19,978 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 10:08:19,979 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-24 10:08:19,979 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-24 10:08:19,979 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-24 10:08:19,984 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:08:20,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:08:20 BoogieIcfgContainer [2021-10-24 10:08:20,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:08:20,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:08:20,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:08:20,011 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:08:20,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:08:18" (3/4) ... [2021-10-24 10:08:20,015 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 10:08:20,028 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-24 10:08:20,028 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-24 10:08:20,029 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-24 10:08:20,029 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:08:20,084 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:08:20,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:08:20,086 INFO L168 Benchmark]: Toolchain (without parser) took 2423.86 ms. Allocated memory is still 96.5 MB. Free memory was 59.3 MB in the beginning and 66.1 MB in the end (delta: -6.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:08:20,087 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory was 75.6 MB in the beginning and 75.5 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:08:20,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.03 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 49.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:08:20,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 96.5 MB. Free memory was 49.4 MB in the beginning and 47.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:08:20,089 INFO L168 Benchmark]: Boogie Preprocessor took 50.02 ms. Allocated memory is still 96.5 MB. Free memory was 47.9 MB in the beginning and 46.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:08:20,089 INFO L168 Benchmark]: RCFGBuilder took 485.32 ms. Allocated memory is still 96.5 MB. Free memory was 46.8 MB in the beginning and 66.3 MB in the end (delta: -19.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:08:20,090 INFO L168 Benchmark]: TraceAbstraction took 1412.79 ms. Allocated memory is still 96.5 MB. Free memory was 66.0 MB in the beginning and 69.0 MB in the end (delta: -2.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:08:20,091 INFO L168 Benchmark]: Witness Printer took 74.34 ms. Allocated memory is still 96.5 MB. Free memory was 69.0 MB in the beginning and 66.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:08:20,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory was 75.6 MB in the beginning and 75.5 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.03 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 49.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 96.5 MB. Free memory was 49.4 MB in the beginning and 47.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.02 ms. Allocated memory is still 96.5 MB. Free memory was 47.9 MB in the beginning and 46.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 485.32 ms. Allocated memory is still 96.5 MB. Free memory was 46.8 MB in the beginning and 66.3 MB in the end (delta: -19.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1412.79 ms. Allocated memory is still 96.5 MB. Free memory was 66.0 MB in the beginning and 69.0 MB in the end (delta: -2.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 74.34 ms. Allocated memory is still 96.5 MB. Free memory was 69.0 MB in the beginning and 66.1 MB in the end (delta: 2.9 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 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1270.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 10.9ms, AutomataDifference: 193.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 127.9ms, InitialAbstractionConstructionTime: 12.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 29 SDslu, 6 SDs, 0 SdLazy, 14 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 67.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 77.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 29.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 58 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 47.0ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 71.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 8.1ms SsaConstructionTime, 22.6ms SatisfiabilityAnalysisTime, 398.9ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 6 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 9 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 <= cond && a + z * x == az * y + x - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 <= cond && a + z * x == az * y + x - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((a == x && a * z == az) && y == 1) || (1 <= cond && a + z * x == az * y + x) RESULT: Ultimate proved your program to be correct! [2021-10-24 10:08:20,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5223cf43-46b5-42fe-8608-cdefe66a7d8d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...