./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS --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 008f13fd1550f54b25db8c20ee30759d3819e45d65744da9f4f77718b68e7e66 --- 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-8393723 [2022-11-19 08:24:50,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:24:50,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:24:50,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:24:50,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:24:50,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:24:50,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:24:50,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:24:50,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:24:50,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:24:50,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:24:50,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:24:50,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:24:50,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:24:50,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:24:50,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:24:50,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:24:50,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:24:50,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:24:50,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:24:50,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:24:50,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:24:50,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:24:50,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:24:50,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:24:50,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:24:50,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:24:50,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:24:50,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:24:50,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:24:50,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:24:50,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:24:50,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:24:50,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:24:50,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:24:50,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:24:50,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:24:50,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:24:50,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:24:50,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:24:50,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:24:50,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:24:50,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:24:50,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:24:50,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:24:50,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:24:50,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:24:50,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:24:50,249 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:24:50,249 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:24:50,249 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:24:50,250 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:24:50,250 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:24:50,250 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:24:50,250 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:24:50,251 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:24:50,251 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:24:50,251 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:24:50,252 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:24:50,252 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:24:50,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:24:50,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:24:50,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:24:50,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:24:50,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:24:50,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:24:50,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:24:50,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:24:50,255 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:24:50,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:24:50,255 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:24:50,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:24:50,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:24:50,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:24:50,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:24:50,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:24:50,257 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:24:50,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:24:50,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:24:50,257 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:24:50,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:24:50,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:24:50,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:24:50,258 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_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 008f13fd1550f54b25db8c20ee30759d3819e45d65744da9f4f77718b68e7e66 [2022-11-19 08:24:50,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:24:50,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:24:50,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:24:50,558 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:24:50,559 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:24:50,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c [2022-11-19 08:24:50,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/data/3be625dfb/11122179fcd440a59971a2feaea24c05/FLAG492c15dea [2022-11-19 08:24:51,049 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:24:51,049 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c [2022-11-19 08:24:51,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/data/3be625dfb/11122179fcd440a59971a2feaea24c05/FLAG492c15dea [2022-11-19 08:24:51,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/data/3be625dfb/11122179fcd440a59971a2feaea24c05 [2022-11-19 08:24:51,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:24:51,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:24:51,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:24:51,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:24:51,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:24:51,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373f1716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51, skipping insertion in model container [2022-11-19 08:24:51,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:24:51,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:24:51,719 WARN L234 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_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c[489,502] [2022-11-19 08:24:51,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:24:51,753 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:24:51,769 WARN L234 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_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c[489,502] [2022-11-19 08:24:51,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:24:51,813 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:24:51,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51 WrapperNode [2022-11-19 08:24:51,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:24:51,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:24:51,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:24:51,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:24:51,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,864 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-11-19 08:24:51,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:24:51,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:24:51,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:24:51,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:24:51,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,895 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:24:51,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:24:51,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:24:51,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:24:51,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (1/1) ... [2022-11-19 08:24:51,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:24:51,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:51,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:24:51,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:24:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:24:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:24:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:24:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:24:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:24:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:24:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:24:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:24:52,062 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:24:52,064 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:24:52,220 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:24:52,253 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:24:52,253 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:24:52,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:24:52 BoogieIcfgContainer [2022-11-19 08:24:52,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:24:52,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:24:52,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:24:52,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:24:52,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:24:51" (1/3) ... [2022-11-19 08:24:52,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d76832b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:24:52, skipping insertion in model container [2022-11-19 08:24:52,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:51" (2/3) ... [2022-11-19 08:24:52,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d76832b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:24:52, skipping insertion in model container [2022-11-19 08:24:52,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:24:52" (3/3) ... [2022-11-19 08:24:52,272 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound1.c [2022-11-19 08:24:52,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:24:52,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:24:52,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:24:52,348 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;@7cffc245, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:24:52,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:24:52,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:24:52,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:24:52,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:52,366 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:52,366 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:24:52,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:52,371 INFO L85 PathProgramCache]: Analyzing trace with hash -2040384688, now seen corresponding path program 1 times [2022-11-19 08:24:52,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:52,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953207502] [2022-11-19 08:24:52,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:52,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:52,489 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:24:52,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383733153] [2022-11-19 08:24:52,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:52,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:52,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:52,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:52,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:24:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:52,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:24:52,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:24:52,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:24:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:24:53,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:53,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953207502] [2022-11-19 08:24:53,072 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:24:53,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383733153] [2022-11-19 08:24:53,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383733153] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 08:24:53,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:24:53,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-11-19 08:24:53,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103653885] [2022-11-19 08:24:53,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:53,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:24:53,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:53,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:24:53,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:24:53,119 INFO L87 Difference]: Start difference. First operand has 26 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:24:53,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:53,202 INFO L93 Difference]: Finished difference Result 49 states and 78 transitions. [2022-11-19 08:24:53,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:24:53,205 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 20 [2022-11-19 08:24:53,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:53,213 INFO L225 Difference]: With dead ends: 49 [2022-11-19 08:24:53,213 INFO L226 Difference]: Without dead ends: 30 [2022-11-19 08:24:53,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:24:53,220 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:53,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 102 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 16 Unchecked, 0.0s Time] [2022-11-19 08:24:53,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-19 08:24:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-19 08:24:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:24:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2022-11-19 08:24:53,263 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 20 [2022-11-19 08:24:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:53,264 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2022-11-19 08:24:53,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:24:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-11-19 08:24:53,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:24:53,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:53,266 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:53,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:24:53,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 08:24:53,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:24:53,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:53,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1970941867, now seen corresponding path program 1 times [2022-11-19 08:24:53,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:53,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689288316] [2022-11-19 08:24:53,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:53,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:53,572 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:24:53,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:53,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689288316] [2022-11-19 08:24:53,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689288316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:53,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:53,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:24:53,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124104816] [2022-11-19 08:24:53,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:53,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:24:53,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:53,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:24:53,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:24:53,576 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:24:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:53,589 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2022-11-19 08:24:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:24:53,590 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 20 [2022-11-19 08:24:53,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:53,591 INFO L225 Difference]: With dead ends: 40 [2022-11-19 08:24:53,592 INFO L226 Difference]: Without dead ends: 30 [2022-11-19 08:24:53,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:24:53,593 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:53,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:24:53,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-19 08:24:53,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-19 08:24:53,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:24:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2022-11-19 08:24:53,604 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 20 [2022-11-19 08:24:53,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:53,605 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2022-11-19 08:24:53,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 08:24:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-11-19 08:24:53,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 08:24:53,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:53,606 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:53,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:24:53,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:24:53,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:53,608 INFO L85 PathProgramCache]: Analyzing trace with hash -879048764, now seen corresponding path program 1 times [2022-11-19 08:24:53,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:53,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652321897] [2022-11-19 08:24:53,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:53,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:53,627 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:24:53,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482283391] [2022-11-19 08:24:53,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:53,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:53,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:53,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:53,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:24:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:53,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-19 08:24:53,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 08:24:54,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:24:54,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:54,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652321897] [2022-11-19 08:24:54,098 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:24:54,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482283391] [2022-11-19 08:24:54,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482283391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:54,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:54,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:24:54,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208485358] [2022-11-19 08:24:54,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:54,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:24:54,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:54,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:24:54,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:24:54,102 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 08:24:54,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:54,297 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2022-11-19 08:24:54,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 08:24:54,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 25 [2022-11-19 08:24:54,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:54,299 INFO L225 Difference]: With dead ends: 43 [2022-11-19 08:24:54,299 INFO L226 Difference]: Without dead ends: 41 [2022-11-19 08:24:54,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:24:54,301 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 13 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:54,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 105 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:24:54,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-19 08:24:54,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2022-11-19 08:24:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 19 states have internal predecessors, (19), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 08:24:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2022-11-19 08:24:54,315 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 25 [2022-11-19 08:24:54,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:54,316 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2022-11-19 08:24:54,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 08:24:54,317 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2022-11-19 08:24:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 08:24:54,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:54,318 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:54,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:54,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:54,524 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:24:54,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:54,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1554903952, now seen corresponding path program 1 times [2022-11-19 08:24:54,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:54,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213281684] [2022-11-19 08:24:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:54,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:54,540 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:24:54,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036676549] [2022-11-19 08:24:54,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:54,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:54,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:54,542 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:54,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:24:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:54,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-19 08:24:54,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:54,986 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-19 08:24:54,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:24:55,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:55,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213281684] [2022-11-19 08:24:55,117 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:24:55,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036676549] [2022-11-19 08:24:55,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036676549] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:24:55,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [832644637] [2022-11-19 08:24:55,141 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-19 08:24:55,141 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:24:55,145 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:24:55,150 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:24:55,151 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:24:55,889 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-19 08:24:55,901 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-19 08:24:55,921 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:24:57,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [832644637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:57,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:24:57,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 23 [2022-11-19 08:24:57,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054730966] [2022-11-19 08:24:57,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:57,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:24:57,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:57,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:24:57,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:24:57,226 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-19 08:24:57,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:57,502 INFO L93 Difference]: Finished difference Result 45 states and 59 transitions. [2022-11-19 08:24:57,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:24:57,502 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2022-11-19 08:24:57,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:57,503 INFO L225 Difference]: With dead ends: 45 [2022-11-19 08:24:57,503 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:24:57,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 38 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:24:57,505 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:57,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 24 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:24:57,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:24:57,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:24:57,507 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) [2022-11-19 08:24:57,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:24:57,508 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-11-19 08:24:57,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:57,508 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:24:57,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-19 08:24:57,509 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:24:57,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:24:57,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:24:57,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:57,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:57,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:24:58,956 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 52) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~y~0#1| 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,956 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:24:58,957 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,957 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~y~0#1| 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,957 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~y~0#1| 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,958 INFO L899 garLoopResultBuilder]: For program point L38(lines 35 52) no Hoare annotation was computed. [2022-11-19 08:24:58,958 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,959 INFO L895 garLoopResultBuilder]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,959 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 08:24:58,959 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-19 08:24:58,959 INFO L902 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: true [2022-11-19 08:24:58,960 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,960 INFO L895 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0)) (= (select |#valid| 1) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,961 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~y~0#1| 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,961 INFO L895 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,961 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-11-19 08:24:58,961 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 35 52) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,962 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~y~0#1| 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:24:58,962 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2022-11-19 08:24:58,962 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-11-19 08:24:58,963 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 10 16) the Hoare annotation is: true [2022-11-19 08:24:58,963 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2022-11-19 08:24:58,963 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2022-11-19 08:24:58,963 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2022-11-19 08:24:58,963 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2022-11-19 08:24:58,964 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-11-19 08:24:58,967 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 08:24:58,969 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:24:59,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:24:58 BoogieIcfgContainer [2022-11-19 08:24:59,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:24:59,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:24:59,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:24:59,001 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:24:59,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:24:52" (3/4) ... [2022-11-19 08:24:59,005 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:24:59,012 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-19 08:24:59,012 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-19 08:24:59,017 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-19 08:24:59,018 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 08:24:59,018 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 08:24:59,018 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:24:59,064 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:24:59,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:24:59,065 INFO L158 Benchmark]: Toolchain (without parser) took 7592.48ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 92.6MB in the beginning and 150.1MB in the end (delta: -57.5MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2022-11-19 08:24:59,065 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory was 108.8MB in the beginning and 108.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:24:59,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.72ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 107.3MB in the end (delta: -14.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:24:59,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.36ms. Allocated memory is still 134.2MB. Free memory was 107.3MB in the beginning and 105.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:24:59,066 INFO L158 Benchmark]: Boogie Preprocessor took 35.14ms. Allocated memory is still 134.2MB. Free memory was 105.6MB in the beginning and 104.6MB in the end (delta: 988.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:24:59,067 INFO L158 Benchmark]: RCFGBuilder took 353.04ms. Allocated memory is still 134.2MB. Free memory was 104.6MB in the beginning and 91.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:24:59,067 INFO L158 Benchmark]: TraceAbstraction took 6742.70ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 90.9MB in the beginning and 153.2MB in the end (delta: -62.3MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. [2022-11-19 08:24:59,068 INFO L158 Benchmark]: Witness Printer took 63.06ms. Allocated memory is still 195.0MB. Free memory was 152.2MB in the beginning and 150.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:24:59,071 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory was 108.8MB in the beginning and 108.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.72ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 107.3MB in the end (delta: -14.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.36ms. Allocated memory is still 134.2MB. Free memory was 107.3MB in the beginning and 105.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.14ms. Allocated memory is still 134.2MB. Free memory was 105.6MB in the beginning and 104.6MB in the end (delta: 988.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 353.04ms. Allocated memory is still 134.2MB. Free memory was 104.6MB in the beginning and 91.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6742.70ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 90.9MB in the beginning and 153.2MB in the end (delta: -62.3MB). Peak memory consumption was 79.0MB. Max. memory is 16.1GB. * Witness Printer took 63.06ms. Allocated memory is still 195.0MB. Free memory was 152.2MB in the beginning and 150.1MB in the end (delta: 2.1MB). 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 - PositiveResult [Line: 13]: 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 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 16 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 302 IncrementalHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 103 mSDtfsCounter, 302 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 87 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=3, InterpolantAutomatonStates: 31, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 42 PreInvPairs, 51 NumberOfFragments, 1055 HoareAnnotationTreeSize, 42 FomulaSimplifications, 4 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 814 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 110 ConstructedInterpolants, 2 QuantifiedInterpolants, 442 SizeOfPredicates, 17 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 65/70 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: OVERALL_TIME: 0.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 22, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 13, TOOLS_POST_TIME: 0.0s, TOOLS_POST_CALL_APPLICATIONS: 19, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 12, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 44, TOOLS_QUANTIFIERELIM_TIME: 0.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 56, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 23, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 22, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 12, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 224, DAG_COMPRESSION_RETAINED_NODES: 60, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((((((((((((((((unknown-#length-unknown[3] == 12 && p == 1) && 1 <= y) && b == y) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && r == 0) && q == 0) && x <= 1) && 1 <= x) && \valid[1] == 1) && !((if 0 <= y && y <= 1 then 1 else 0) == 0)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 08:24:59,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0edcd2-9e64-40b2-acfd-0483c6d389b1/bin/utaipan-I9t0OCRTmS/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 Result: TRUE