./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cos_polynomial.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cos_polynomial.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh --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 c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- 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-2329fc7 [2022-12-14 11:02:52,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:02:52,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:02:52,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:02:52,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:02:52,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:02:52,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:02:52,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:02:52,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:02:52,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:02:52,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:02:52,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:02:52,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:02:52,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:02:52,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:02:52,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:02:52,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:02:52,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:02:52,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:02:52,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:02:52,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:02:52,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:02:52,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:02:52,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:02:52,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:02:52,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:02:52,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:02:52,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:02:52,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:02:52,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:02:52,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:02:52,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:02:52,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:02:52,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:02:52,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:02:52,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:02:52,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:02:52,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:02:52,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:02:52,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:02:52,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:02:52,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:02:52,609 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:02:52,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:02:52,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:02:52,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:02:52,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:02:52,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:02:52,611 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:02:52,611 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:02:52,611 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:02:52,611 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:02:52,612 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:02:52,612 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:02:52,612 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:02:52,612 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:02:52,612 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:02:52,612 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:02:52,613 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:02:52,613 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:02:52,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:02:52,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:02:52,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:02:52,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:02:52,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:02:52,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:02:52,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:02:52,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:02:52,615 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:02:52,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:02:52,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:02:52,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:02:52,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:02:52,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:02:52,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:02:52,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:02:52,616 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:02:52,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:02:52,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:02:52,616 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:02:52,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:02:52,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:02:52,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:02:52,617 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_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2022-12-14 11:02:52,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:02:52,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:02:52,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:02:52,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:02:52,803 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:02:52,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-12-14 11:02:55,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:02:55,563 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:02:55,564 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-12-14 11:02:55,568 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/data/3981832b4/bbede8b814264acea97f9dc2bb301b5d/FLAGeade6965c [2022-12-14 11:02:55,956 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/data/3981832b4/bbede8b814264acea97f9dc2bb301b5d [2022-12-14 11:02:55,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:02:55,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:02:55,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:02:55,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:02:55,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:02:55,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:02:55" (1/1) ... [2022-12-14 11:02:55,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60dc0dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:55, skipping insertion in model container [2022-12-14 11:02:55,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:02:55" (1/1) ... [2022-12-14 11:02:55,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:02:55,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:02:56,079 WARN L237 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_c8d10a50-5078-4875-a785-8a28cb9dacef/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-12-14 11:02:56,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:02:56,098 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:02:56,107 WARN L237 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_c8d10a50-5078-4875-a785-8a28cb9dacef/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-12-14 11:02:56,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:02:56,121 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:02:56,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56 WrapperNode [2022-12-14 11:02:56,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:02:56,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:02:56,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:02:56,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:02:56,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,145 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-14 11:02:56,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:02:56,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:02:56,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:02:56,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:02:56,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,158 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:02:56,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:02:56,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:02:56,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:02:56,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (1/1) ... [2022-12-14 11:02:56,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:02:56,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:02:56,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:02:56,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:02:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:02:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:02:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:02:56,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:02:56,283 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:02:56,285 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:02:56,377 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:02:56,444 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:02:56,444 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:02:56,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:02:56 BoogieIcfgContainer [2022-12-14 11:02:56,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:02:56,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:02:56,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:02:56,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:02:56,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:02:55" (1/3) ... [2022-12-14 11:02:56,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6152c4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:02:56, skipping insertion in model container [2022-12-14 11:02:56,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:02:56" (2/3) ... [2022-12-14 11:02:56,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6152c4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:02:56, skipping insertion in model container [2022-12-14 11:02:56,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:02:56" (3/3) ... [2022-12-14 11:02:56,455 INFO L112 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2022-12-14 11:02:56,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:02:56,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:02:56,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:02:56,523 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;@7aaf90d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:02:56,523 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:02:56,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-12-14 11:02:56,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 11:02:56,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:02:56,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 11:02:56,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:02:56,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:02:56,538 INFO L85 PathProgramCache]: Analyzing trace with hash 87548, now seen corresponding path program 1 times [2022-12-14 11:02:56,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:02:56,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144629973] [2022-12-14 11:02:56,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:02:56,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:02:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:02:56,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:02:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:02:56,663 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:02:56,664 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:02:56,665 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 11:02:56,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:02:56,670 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 11:02:56,674 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:02:56,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:02:56 BoogieIcfgContainer [2022-12-14 11:02:56,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:02:56,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:02:56,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:02:56,690 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:02:56,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:02:56" (3/4) ... [2022-12-14 11:02:56,694 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:02:56,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:02:56,695 INFO L158 Benchmark]: Toolchain (without parser) took 736.16ms. Allocated memory is still 153.1MB. Free memory was 120.6MB in the beginning and 78.3MB in the end (delta: 42.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-14 11:02:56,695 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 153.1MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:02:56,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.38ms. Allocated memory is still 153.1MB. Free memory was 120.6MB in the beginning and 110.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 11:02:56,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.50ms. Allocated memory is still 153.1MB. Free memory was 110.1MB in the beginning and 108.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:02:56,697 INFO L158 Benchmark]: Boogie Preprocessor took 14.22ms. Allocated memory is still 153.1MB. Free memory was 108.5MB in the beginning and 107.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:02:56,697 INFO L158 Benchmark]: RCFGBuilder took 285.74ms. Allocated memory is still 153.1MB. Free memory was 107.3MB in the beginning and 93.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:02:56,698 INFO L158 Benchmark]: TraceAbstraction took 240.45ms. Allocated memory is still 153.1MB. Free memory was 92.6MB in the beginning and 78.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:02:56,698 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 153.1MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:02:56,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 153.1MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.38ms. Allocated memory is still 153.1MB. Free memory was 120.6MB in the beginning and 110.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.50ms. Allocated memory is still 153.1MB. Free memory was 110.1MB in the beginning and 108.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.22ms. Allocated memory is still 153.1MB. Free memory was 108.5MB in the beginning and 107.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.74ms. Allocated memory is still 153.1MB. Free memory was 107.3MB in the beginning and 93.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 240.45ms. Allocated memory is still 153.1MB. Free memory was 92.6MB in the beginning and 78.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 153.1MB. Free memory is still 78.3MB. 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 26, overapproximation of someBinaryDOUBLEComparisonOperation at line 52. Possible FailurePath: [L16] double C1 = 4.16666666666666019037e-02; [L17] double C2 = -1.38888888888741095749e-03; [L18] double C3 = 2.48015872894767294178e-05; [L19] double C4 = -2.75573143513906633035e-07; [L20] double C5 = 2.08757232129817482790e-09; [L21] double C6 = -1.13596475577881948265e-11; [L49] double a, r; [L51] a = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not(a >= -0.5 && a <= 0.75) [L12] COND FALSE !(!cond) [L52] RET assume_abort_if_not(a >= -0.5 && a <= 0.75) [L54] CALL, EXPR mcos(a) [L25] double a, hz, z, r, qx, zr; [L26] z = x*x [L27] COND TRUE x < 0. [L27] x = -x [L28] hz = 0.5 * z [L29] r = z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*C6))))) [L30] zr = z*r [L31] COND TRUE x < 0.3 [L32] return 1.-(hz-zr); [L54] RET, EXPR mcos(a) [L54] r = mcos(a) [L56] CALL __VERIFIER_assert(r >= 0. && r <= 1.1) [L14] COND TRUE !(cond) VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] [L14] reach_error() VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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 [2022-12-14 11:02:56,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cos_polynomial.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh --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 c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- 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-2329fc7 [2022-12-14 11:02:58,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:02:58,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:02:58,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:02:58,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:02:58,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:02:58,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:02:58,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:02:58,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:02:58,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:02:58,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:02:58,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:02:58,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:02:58,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:02:58,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:02:58,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:02:58,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:02:58,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:02:58,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:02:58,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:02:58,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:02:58,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:02:58,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:02:58,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:02:58,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:02:58,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:02:58,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:02:58,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:02:58,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:02:58,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:02:58,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:02:58,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:02:58,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:02:58,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:02:58,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:02:58,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:02:58,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:02:58,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:02:58,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:02:58,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:02:58,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:02:58,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 11:02:58,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:02:58,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:02:58,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:02:58,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:02:58,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:02:58,418 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:02:58,418 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:02:58,418 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:02:58,418 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:02:58,418 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:02:58,419 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:02:58,419 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:02:58,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:02:58,420 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:02:58,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:02:58,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:02:58,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:02:58,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:02:58,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:02:58,421 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:02:58,421 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 11:02:58,421 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 11:02:58,422 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:02:58,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:02:58,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:02:58,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:02:58,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:02:58,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 11:02:58,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:02:58,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:02:58,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:02:58,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:02:58,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:02:58,424 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 11:02:58,424 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 11:02:58,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:02:58,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:02:58,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 11:02:58,424 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_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2022-12-14 11:02:58,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:02:58,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:02:58,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:02:58,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:02:58,663 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:02:58,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-12-14 11:03:01,262 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:03:01,385 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:03:01,386 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/sv-benchmarks/c/float-benchs/cos_polynomial.c [2022-12-14 11:03:01,390 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/data/4f1b707e5/9f9f1c164d784635922dff8037f8c47f/FLAGe14b95fb9 [2022-12-14 11:03:01,401 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/data/4f1b707e5/9f9f1c164d784635922dff8037f8c47f [2022-12-14 11:03:01,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:03:01,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:03:01,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:03:01,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:03:01,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:03:01,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73181c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01, skipping insertion in model container [2022-12-14 11:03:01,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:03:01,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:03:01,549 WARN L237 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_c8d10a50-5078-4875-a785-8a28cb9dacef/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-12-14 11:03:01,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:03:01,585 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:03:01,597 WARN L237 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_c8d10a50-5078-4875-a785-8a28cb9dacef/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2022-12-14 11:03:01,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:03:01,620 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:03:01,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01 WrapperNode [2022-12-14 11:03:01,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:03:01,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:03:01,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:03:01,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:03:01,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,658 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-12-14 11:03:01,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:03:01,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:03:01,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:03:01,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:03:01,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,681 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:03:01,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:03:01,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:03:01,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:03:01,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (1/1) ... [2022-12-14 11:03:01,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:03:01,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:03:01,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:03:01,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:03:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:03:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 11:03:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:03:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:03:01,809 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:03:01,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:03:08,510 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:03:08,514 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:03:08,515 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:03:08,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:03:08 BoogieIcfgContainer [2022-12-14 11:03:08,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:03:08,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:03:08,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:03:08,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:03:08,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:03:01" (1/3) ... [2022-12-14 11:03:08,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514c6c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:03:08, skipping insertion in model container [2022-12-14 11:03:08,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:03:01" (2/3) ... [2022-12-14 11:03:08,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514c6c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:03:08, skipping insertion in model container [2022-12-14 11:03:08,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:03:08" (3/3) ... [2022-12-14 11:03:08,523 INFO L112 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2022-12-14 11:03:08,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:03:08,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:03:08,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:03:08,574 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;@323d365c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:03:08,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:03:08,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 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) [2022-12-14 11:03:08,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 11:03:08,581 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:03:08,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:03:08,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:03:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:03:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2022-12-14 11:03:08,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:03:08,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463218489] [2022-12-14 11:03:08,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:03:08,599 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 [2022-12-14 11:03:08,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:03:08,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/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) [2022-12-14 11:03:08,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/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 [2022-12-14 11:03:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:03:10,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 11:03:10,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:03:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:03:10,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:03:10,703 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:03:10,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463218489] [2022-12-14 11:03:10,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463218489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:03:10,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:03:10,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:03:10,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430006660] [2022-12-14 11:03:10,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:03:10,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:03:10,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:03:10,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:03:10,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:03:10,729 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-12-14 11:03:10,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:03:10,739 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-12-14 11:03:10,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:03:10,741 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-12-14 11:03:10,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:03:10,746 INFO L225 Difference]: With dead ends: 31 [2022-12-14 11:03:10,746 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 11:03:10,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:03:10,750 INFO L413 NwaCegarLoop]: 19 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, 19 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 [2022-12-14 11:03:10,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:03:10,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 11:03:10,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 11:03:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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) [2022-12-14 11:03:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-12-14 11:03:10,770 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-12-14 11:03:10,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:03:10,771 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-12-14 11:03:10,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-12-14 11:03:10,771 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-12-14 11:03:10,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 11:03:10,771 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:03:10,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:03:10,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 11:03:10,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/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 [2022-12-14 11:03:10,974 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:03:10,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:03:10,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2022-12-14 11:03:10,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:03:10,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505536524] [2022-12-14 11:03:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:03:10,978 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 [2022-12-14 11:03:10,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:03:10,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/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) [2022-12-14 11:03:10,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d10a50-5078-4875-a785-8a28cb9dacef/bin/utaipan-gh47qXpMRh/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