./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0 --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 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 19:36:34,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:36:34,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:36:34,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:36:34,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:36:34,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:36:34,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:36:34,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:36:34,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:36:34,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:36:34,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:36:34,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:36:34,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:36:34,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:36:34,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:36:34,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:36:34,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:36:34,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:36:34,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:36:34,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:36:34,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:36:34,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:36:34,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:36:34,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:36:34,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:36:34,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:36:34,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:36:34,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:36:34,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:36:34,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:36:34,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:36:34,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:36:34,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:36:34,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:36:34,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:36:34,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:36:34,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:36:34,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:36:34,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:36:34,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:36:34,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:36:34,215 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 19:36:34,262 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:36:34,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:36:34,263 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:36:34,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:36:34,264 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:36:34,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:36:34,265 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:36:34,265 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:36:34,265 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:36:34,266 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:36:34,267 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:36:34,267 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:36:34,267 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:36:34,267 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:36:34,268 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:36:34,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:36:34,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:36:34,268 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:36:34,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:36:34,269 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:36:34,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:36:34,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:36:34,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:36:34,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:36:34,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:36:34,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:36:34,272 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:36:34,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:36:34,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:36:34,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:36:34,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:36:34,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:36:34,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:36:34,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:36:34,274 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:36:34,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:36:34,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:36:34,275 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:36:34,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:36:34,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:36:34,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:36:34,276 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_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 [2022-11-16 19:36:34,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:36:34,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:36:34,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:36:34,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:36:34,621 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:36:34,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2022-11-16 19:36:34,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data/cc056ed4f/0e145f13c5c64991ab1f3c55311760aa/FLAG3d1b423ee [2022-11-16 19:36:35,114 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:36:35,115 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2022-11-16 19:36:35,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data/cc056ed4f/0e145f13c5c64991ab1f3c55311760aa/FLAG3d1b423ee [2022-11-16 19:36:35,529 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data/cc056ed4f/0e145f13c5c64991ab1f3c55311760aa [2022-11-16 19:36:35,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:36:35,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:36:35,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:36:35,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:36:35,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:36:35,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4429e391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35, skipping insertion in model container [2022-11-16 19:36:35,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:36:35,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:36:35,762 WARN L229 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_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2022-11-16 19:36:35,782 WARN L229 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_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2022-11-16 19:36:35,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:36:35,791 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:36:35,804 WARN L229 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_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2022-11-16 19:36:35,813 WARN L229 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_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2022-11-16 19:36:35,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:36:35,827 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:36:35,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35 WrapperNode [2022-11-16 19:36:35,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:36:35,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:36:35,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:36:35,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:36:35,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,886 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-11-16 19:36:35,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:36:35,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:36:35,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:36:35,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:36:35,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,924 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:36:35,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:36:35,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:36:35,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:36:35,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (1/1) ... [2022-11-16 19:36:35,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:36:35,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:36:35,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:36:35,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:36:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:36:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:36:36,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:36:36,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:36:36,093 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:36:36,095 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:36:36,260 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:36:36,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:36:36,337 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:36:36,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:36:36 BoogieIcfgContainer [2022-11-16 19:36:36,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:36:36,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:36:36,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:36:36,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:36:36,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:36:35" (1/3) ... [2022-11-16 19:36:36,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558b0f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:36:36, skipping insertion in model container [2022-11-16 19:36:36,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:35" (2/3) ... [2022-11-16 19:36:36,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558b0f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:36:36, skipping insertion in model container [2022-11-16 19:36:36,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:36:36" (3/3) ... [2022-11-16 19:36:36,348 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_7.i [2022-11-16 19:36:36,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:36:36,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 19:36:36,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:36:36,469 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@141ec96a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:36:36,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 19:36:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 states have internal predecessors, (19), 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) [2022-11-16 19:36:36,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:36:36,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:36,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:36:36,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:36:36,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:36,512 INFO L85 PathProgramCache]: Analyzing trace with hash 3484809, now seen corresponding path program 1 times [2022-11-16 19:36:36,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:36,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954278908] [2022-11-16 19:36:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:36:36,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 19:36:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:36:36,653 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 19:36:36,655 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 19:36:36,656 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-16 19:36:36,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-16 19:36:36,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:36:36,663 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 19:36:36,668 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:36:36,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:36:36 BoogieIcfgContainer [2022-11-16 19:36:36,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:36:36,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:36:36,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:36:36,697 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:36:36,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:36:36" (3/4) ... [2022-11-16 19:36:36,701 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 19:36:36,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:36:36,703 INFO L158 Benchmark]: Toolchain (without parser) took 1170.60ms. Allocated memory is still 100.7MB. Free memory was 55.8MB in the beginning and 39.6MB in the end (delta: 16.2MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-11-16 19:36:36,704 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:36:36,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.77ms. Allocated memory is still 100.7MB. Free memory was 55.6MB in the beginning and 73.6MB in the end (delta: -18.0MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-11-16 19:36:36,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.37ms. Allocated memory is still 100.7MB. Free memory was 73.6MB in the beginning and 71.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:36:36,706 INFO L158 Benchmark]: Boogie Preprocessor took 51.31ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 70.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:36:36,711 INFO L158 Benchmark]: RCFGBuilder took 400.19ms. Allocated memory is still 100.7MB. Free memory was 70.5MB in the beginning and 54.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 19:36:36,713 INFO L158 Benchmark]: TraceAbstraction took 351.45ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 40.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 19:36:36,713 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 100.7MB. Free memory was 40.0MB in the beginning and 39.6MB in the end (delta: 376.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:36:36,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.77ms. Allocated memory is still 100.7MB. Free memory was 55.6MB in the beginning and 73.6MB in the end (delta: -18.0MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.37ms. Allocated memory is still 100.7MB. Free memory was 73.6MB in the beginning and 71.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.31ms. Allocated memory is still 100.7MB. Free memory was 71.9MB in the beginning and 70.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 400.19ms. Allocated memory is still 100.7MB. Free memory was 70.5MB in the beginning and 54.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 351.45ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 40.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 100.7MB. Free memory was 40.0MB in the beginning and 39.6MB in the end (delta: 376.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=109] [L102] reach_error() VAL [IN=109] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 19:36:36,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0 --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 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 19:36:39,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:36:39,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:36:39,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:36:39,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:36:39,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:36:39,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:36:39,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:36:39,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:36:39,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:36:39,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:36:39,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:36:39,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:36:39,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:36:39,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:36:39,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:36:39,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:36:39,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:36:39,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:36:39,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:36:39,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:36:39,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:36:39,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:36:39,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:36:39,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:36:39,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:36:39,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:36:39,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:36:39,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:36:39,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:36:39,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:36:39,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:36:39,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:36:39,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:36:39,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:36:39,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:36:39,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:36:39,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:36:39,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:36:39,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:36:39,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:36:39,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-16 19:36:39,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:36:39,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:36:39,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:36:39,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:36:39,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:36:39,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:36:39,195 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:36:39,195 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:36:39,195 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:36:39,195 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:36:39,196 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:36:39,196 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:36:39,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:36:39,198 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:36:39,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:36:39,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:36:39,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:36:39,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:36:39,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:36:39,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 19:36:39,199 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 19:36:39,199 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 19:36:39,199 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:36:39,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:36:39,200 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:36:39,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:36:39,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:36:39,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 19:36:39,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:36:39,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:36:39,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:36:39,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:36:39,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:36:39,202 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 19:36:39,202 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 19:36:39,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:36:39,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:36:39,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 19:36:39,203 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 [2022-11-16 19:36:39,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:36:39,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:36:39,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:36:39,682 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:36:39,684 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:36:39,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2022-11-16 19:36:39,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data/f7625875d/5691acd5c3594646b908af48223163e0/FLAGecb4b21bd [2022-11-16 19:36:40,241 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:36:40,245 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2022-11-16 19:36:40,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data/f7625875d/5691acd5c3594646b908af48223163e0/FLAGecb4b21bd [2022-11-16 19:36:40,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/data/f7625875d/5691acd5c3594646b908af48223163e0 [2022-11-16 19:36:40,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:36:40,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:36:40,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:36:40,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:36:40,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:36:40,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:36:40" (1/1) ... [2022-11-16 19:36:40,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d7cc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:40, skipping insertion in model container [2022-11-16 19:36:40,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:36:40" (1/1) ... [2022-11-16 19:36:40,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:36:40,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:36:40,882 WARN L229 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_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2022-11-16 19:36:40,944 WARN L229 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_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2022-11-16 19:36:40,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:36:40,971 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:36:40,994 WARN L229 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_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2022-11-16 19:36:41,012 WARN L229 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_62efffd2-eac5-4192-bcc4-eaec416a5d17/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2022-11-16 19:36:41,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:36:41,036 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:36:41,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41 WrapperNode [2022-11-16 19:36:41,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:36:41,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:36:41,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:36:41,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:36:41,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,084 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-11-16 19:36:41,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:36:41,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:36:41,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:36:41,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:36:41,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,116 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:36:41,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:36:41,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:36:41,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:36:41,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (1/1) ... [2022-11-16 19:36:41,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:36:41,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:36:41,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:36:41,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:36:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:36:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 19:36:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:36:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:36:41,295 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:36:41,297 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:36:48,063 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:36:48,068 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:36:48,068 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:36:48,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:36:48 BoogieIcfgContainer [2022-11-16 19:36:48,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:36:48,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:36:48,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:36:48,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:36:48,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:36:40" (1/3) ... [2022-11-16 19:36:48,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3a6aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:36:48, skipping insertion in model container [2022-11-16 19:36:48,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:36:41" (2/3) ... [2022-11-16 19:36:48,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3a6aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:36:48, skipping insertion in model container [2022-11-16 19:36:48,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:36:48" (3/3) ... [2022-11-16 19:36:48,078 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_7.i [2022-11-16 19:36:48,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:36:48,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 19:36:48,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:36:48,153 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e04008c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:36:48,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 19:36:48,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) [2022-11-16 19:36:48,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 19:36:48,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:48,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:36:48,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:36:48,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:48,178 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-11-16 19:36:48,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:36:48,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904244999] [2022-11-16 19:36:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:48,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:36:48,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:36:48,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:36:48,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 19:36:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:49,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 19:36:49,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:36:49,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:36:49,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:36:49,384 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:36:49,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904244999] [2022-11-16 19:36:49,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904244999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:36:49,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:36:49,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:36:49,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884642006] [2022-11-16 19:36:49,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:36:49,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 19:36:49,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:36:49,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 19:36:49,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 19:36:49,421 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-16 19:36:49,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:36:49,441 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-11-16 19:36:49,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 19:36:49,444 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 19:36:49,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:36:49,452 INFO L225 Difference]: With dead ends: 46 [2022-11-16 19:36:49,452 INFO L226 Difference]: Without dead ends: 19 [2022-11-16 19:36:49,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 19:36:49,462 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:36:49,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:36:49,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-16 19:36:49,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-16 19:36:49,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 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) [2022-11-16 19:36:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-16 19:36:49,496 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-11-16 19:36:49,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:49,496 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-16 19:36:49,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-16 19:36:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-16 19:36:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 19:36:49,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:49,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:36:49,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-16 19:36:49,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:36:49,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:36:49,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:49,715 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-11-16 19:36:49,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:36:49,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111918576] [2022-11-16 19:36:49,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:49,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:36:49,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:36:49,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:36:49,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 19:44:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:44:23,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 19:47:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:47:24,637 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-16 19:47:24,637 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 19:47:24,639 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-16 19:47:24,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-16 19:47:24,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 19:47:24,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:47:24,845 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 19:47:24,848 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:47:24,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:47:24 BoogieIcfgContainer [2022-11-16 19:47:24,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:47:24,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:47:24,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:47:24,871 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:47:24,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:36:48" (3/4) ... [2022-11-16 19:47:24,874 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 19:47:24,919 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 19:47:24,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:47:24,923 INFO L158 Benchmark]: Toolchain (without parser) took 644285.99ms. Allocated memory is still 71.3MB. Free memory was 53.5MB in the beginning and 30.4MB in the end (delta: 23.1MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2022-11-16 19:47:24,923 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 71.3MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:47:24,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.06ms. Allocated memory is still 71.3MB. Free memory was 53.3MB in the beginning and 51.8MB in the end (delta: 1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 19:47:24,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.14ms. Allocated memory is still 71.3MB. Free memory was 51.8MB in the beginning and 50.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:47:24,925 INFO L158 Benchmark]: Boogie Preprocessor took 35.29ms. Allocated memory is still 71.3MB. Free memory was 50.0MB in the beginning and 48.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:47:24,927 INFO L158 Benchmark]: RCFGBuilder took 6948.69ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 36.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 19:47:24,927 INFO L158 Benchmark]: TraceAbstraction took 636798.75ms. Allocated memory is still 71.3MB. Free memory was 35.5MB in the beginning and 32.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2022-11-16 19:47:24,928 INFO L158 Benchmark]: Witness Printer took 50.87ms. Allocated memory is still 71.3MB. Free memory was 32.2MB in the beginning and 30.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 19:47:24,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 71.3MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.06ms. Allocated memory is still 71.3MB. Free memory was 53.3MB in the beginning and 51.8MB in the end (delta: 1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.14ms. Allocated memory is still 71.3MB. Free memory was 51.8MB in the beginning and 50.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.29ms. Allocated memory is still 71.3MB. Free memory was 50.0MB in the beginning and 48.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6948.69ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 36.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 636798.75ms. Allocated memory is still 71.3MB. Free memory was 35.5MB in the beginning and 32.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Witness Printer took 50.87ms. Allocated memory is still 71.3MB. Free memory was 32.2MB in the beginning and 30.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.3114479780197144, \result=-0.969173789024353, x=-1.3114479780197144] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.3114479780197144, \result=0.27036982774734497, x=-1.3114479780197144] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-1.3114479780197144, x=2.27317476272583] [L102] reach_error() VAL [IN=-1.3114479780197144, x=2.27317476272583] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 636.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 454.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 19:47:25,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62efffd2-eac5-4192-bcc4-eaec416a5d17/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE