./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 --- 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-5e519f3 [2022-11-02 20:46:13,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:46:13,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:46:13,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:46:13,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:46:13,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:46:13,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:46:13,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:46:13,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:46:13,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:46:13,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:46:13,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:46:13,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:46:13,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:46:13,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:46:13,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:46:13,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:46:13,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:46:13,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:46:13,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:46:13,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:46:13,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:46:13,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:46:13,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:46:13,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:46:13,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:46:13,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:46:13,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:46:13,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:46:13,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:46:13,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:46:13,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:46:13,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:46:13,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:46:13,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:46:13,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:46:13,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:46:13,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:46:13,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:46:13,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:46:13,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:46:13,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:46:14,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:46:14,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:46:14,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:46:14,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:46:14,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:46:14,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:46:14,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:46:14,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:46:14,033 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:46:14,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:46:14,034 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:46:14,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:46:14,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:46:14,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:46:14,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:46:14,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:46:14,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:46:14,035 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:46:14,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:46:14,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:46:14,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:46:14,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:46:14,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:46:14,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:46:14,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:46:14,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:46:14,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:46:14,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:46:14,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:46:14,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:46:14,037 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:46:14,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:46:14,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:46:14,038 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_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 [2022-11-02 20:46:14,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:46:14,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:46:14,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:46:14,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:46:14,416 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:46:14,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2022-11-02 20:46:14,489 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data/eb0b1933e/f12c71b124d14653836580c6d26ce0bd/FLAG592237c38 [2022-11-02 20:46:15,098 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:46:15,102 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2022-11-02 20:46:15,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data/eb0b1933e/f12c71b124d14653836580c6d26ce0bd/FLAG592237c38 [2022-11-02 20:46:15,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data/eb0b1933e/f12c71b124d14653836580c6d26ce0bd [2022-11-02 20:46:15,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:46:15,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:46:15,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:46:15,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:46:15,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:46:15,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76886f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15, skipping insertion in model container [2022-11-02 20:46:15,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:46:15,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:46:15,714 WARN L230 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_42174140-2b00-4445-9b36-e1d117754056/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2022-11-02 20:46:15,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:46:15,732 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:46:15,772 WARN L230 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_42174140-2b00-4445-9b36-e1d117754056/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2022-11-02 20:46:15,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:46:15,798 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:46:15,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15 WrapperNode [2022-11-02 20:46:15,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:46:15,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:46:15,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:46:15,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:46:15,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,854 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 98 [2022-11-02 20:46:15,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:46:15,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:46:15,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:46:15,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:46:15,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:46:15,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:46:15,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:46:15,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:46:15,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (1/1) ... [2022-11-02 20:46:15,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:46:15,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:46:15,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:46:15,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:46:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:46:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:46:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:46:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-02 20:46:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:46:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-02 20:46:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:46:15,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:46:15,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:46:15,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:46:16,112 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:46:16,114 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:46:16,353 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:46:16,359 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:46:16,359 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:46:16,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:16 BoogieIcfgContainer [2022-11-02 20:46:16,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:46:16,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:46:16,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:46:16,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:46:16,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:46:15" (1/3) ... [2022-11-02 20:46:16,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1f8bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:16, skipping insertion in model container [2022-11-02 20:46:16,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:15" (2/3) ... [2022-11-02 20:46:16,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1f8bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:16, skipping insertion in model container [2022-11-02 20:46:16,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:16" (3/3) ... [2022-11-02 20:46:16,388 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_Newton.c.p+cfa-reducer.c [2022-11-02 20:46:16,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:46:16,408 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:46:16,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:46:16,518 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=PETRI_NET, 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;@38aec808, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:46:16,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:46:16,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) [2022-11-02 20:46:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:46:16,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:46:16,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:16,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:46:16,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:16,549 INFO L85 PathProgramCache]: Analyzing trace with hash -938930996, now seen corresponding path program 1 times [2022-11-02 20:46:16,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:16,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160737539] [2022-11-02 20:46:16,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:16,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:16,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:16,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160737539] [2022-11-02 20:46:16,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160737539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:16,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:16,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:46:16,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668300160] [2022-11-02 20:46:16,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:16,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:46:16,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:16,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:46:16,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:46:16,935 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-02 20:46:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:46:16,997 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2022-11-02 20:46:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:46:17,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-02 20:46:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:46:17,009 INFO L225 Difference]: With dead ends: 49 [2022-11-02 20:46:17,010 INFO L226 Difference]: Without dead ends: 33 [2022-11-02 20:46:17,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:46:17,021 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 33 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:46:17,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 70 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:46:17,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-02 20:46:17,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 19. [2022-11-02 20:46:17,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2022-11-02 20:46:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2022-11-02 20:46:17,056 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 11 [2022-11-02 20:46:17,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:46:17,057 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-02 20:46:17,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-02 20:46:17,057 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-11-02 20:46:17,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:46:17,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:46:17,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:17,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:46:17,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:46:17,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:17,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1250925041, now seen corresponding path program 1 times [2022-11-02 20:46:17,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:17,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772774723] [2022-11-02 20:46:17,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:17,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:17,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:17,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772774723] [2022-11-02 20:46:17,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772774723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:17,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:17,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:17,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244603209] [2022-11-02 20:46:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:17,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:46:17,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:17,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:46:17,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:46:17,186 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:46:17,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:46:17,283 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2022-11-02 20:46:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:46:17,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) Word has length 15 [2022-11-02 20:46:17,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:46:17,286 INFO L225 Difference]: With dead ends: 44 [2022-11-02 20:46:17,287 INFO L226 Difference]: Without dead ends: 37 [2022-11-02 20:46:17,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:46:17,288 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 30 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:46:17,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 71 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:46:17,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-02 20:46:17,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 20. [2022-11-02 20:46:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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) [2022-11-02 20:46:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-11-02 20:46:17,300 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 15 [2022-11-02 20:46:17,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:46:17,304 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-02 20:46:17,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:46:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-11-02 20:46:17,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:46:17,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:46:17,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:17,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:46:17,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:46:17,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:17,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1796523982, now seen corresponding path program 1 times [2022-11-02 20:46:17,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:17,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126800977] [2022-11-02 20:46:17,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:17,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:17,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:46:17,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:17,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126800977] [2022-11-02 20:46:17,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126800977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:17,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:17,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:46:17,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028102637] [2022-11-02 20:46:17,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:17,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:46:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:46:17,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:46:17,473 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:46:17,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:46:17,538 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-11-02 20:46:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:46:17,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) Word has length 15 [2022-11-02 20:46:17,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:46:17,540 INFO L225 Difference]: With dead ends: 41 [2022-11-02 20:46:17,540 INFO L226 Difference]: Without dead ends: 35 [2022-11-02 20:46:17,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:46:17,542 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:46:17,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 79 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:46:17,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-02 20:46:17,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2022-11-02 20:46:17,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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) [2022-11-02 20:46:17,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2022-11-02 20:46:17,548 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 15 [2022-11-02 20:46:17,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:46:17,548 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-11-02 20:46:17,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:46:17,549 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2022-11-02 20:46:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:46:17,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:46:17,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:17,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:46:17,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:46:17,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:17,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1813534643, now seen corresponding path program 1 times [2022-11-02 20:46:17,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:17,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562453016] [2022-11-02 20:46:17,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:17,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:17,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:46:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:46:17,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:46:17,604 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:46:17,605 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:46:17,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:46:17,611 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-02 20:46:17,615 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:46:17,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:46:17 BoogieIcfgContainer [2022-11-02 20:46:17,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:46:17,648 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:46:17,648 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:46:17,648 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:46:17,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:16" (3/4) ... [2022-11-02 20:46:17,652 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:46:17,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:46:17,653 INFO L158 Benchmark]: Toolchain (without parser) took 2196.29ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 84.3MB in the end (delta: 1.2MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2022-11-02 20:46:17,653 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 78.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:46:17,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.78ms. Allocated memory is still 117.4MB. Free memory was 85.2MB in the beginning and 92.2MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:46:17,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.88ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 90.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:46:17,655 INFO L158 Benchmark]: Boogie Preprocessor took 26.57ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 89.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:46:17,655 INFO L158 Benchmark]: RCFGBuilder took 478.73ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 77.3MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:46:17,656 INFO L158 Benchmark]: TraceAbstraction took 1283.31ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 84.3MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:46:17,656 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 117.4MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:46:17,658 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 78.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.78ms. Allocated memory is still 117.4MB. Free memory was 85.2MB in the beginning and 92.2MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.88ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 90.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.57ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 89.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.73ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 77.3MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1283.31ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 84.3MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 117.4MB. Free memory is still 84.3MB. 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: 96]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 45, overapproximation of someBinaryArithmeticDOUBLEoperation at line 53, overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of to_real at line 46. Possible FailurePath: [L1] int __return_main; [L17] double __return_104; VAL [__return_104=0, __return_main=0] [L20] double main__a; [L21] double main__r; [L22] main__a = __VERIFIER_nondet_double() [L23] int main____CPAchecker_TMP_0; VAL [__return_104=0, __return_main=0] [L24] COND TRUE main__a >= 20.0 VAL [__return_104=0, __return_main=0] [L26] COND TRUE main__a <= 30.0 [L28] main____CPAchecker_TMP_0 = 1 VAL [__return_104=0, __return_main=0, main____CPAchecker_TMP_0=1] [L30] COND TRUE main____CPAchecker_TMP_0 != 0 [L33] double __tmp_1; [L34] __tmp_1 = main__a [L35] double inv__A; [L36] inv__A = __tmp_1 [L37] double inv__xi; [L38] double inv__xsi; [L39] double inv__temp; [L40] signed int inv__cond; [L41] signed int inv__exp; [L42] union double_int inv__A_u; [L43] union double_int inv__xi_u; [L44] inv__A_u.d = inv__A [L45] EXPR inv__A_u.i [L45] inv__exp = ((signed int)(((inv__A_u.i) & 2146435072) >> 20)) - 1023 [L46] inv__xi_u.d = 1 [L47] inv__xi_u.i = (1023 - inv__exp) << 20 [L48] EXPR inv__xi_u.d [L48] inv__xi = inv__xi_u.d [L49] inv__cond = 1 VAL [__return_104=0, __return_main=0, __tmp_1=2145386509, inv__A=2145386509, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386511, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386509] [L51] COND TRUE !(inv__cond == 0) [L53] inv__xsi = (2 * inv__xi) - ((inv__A * inv__xi) * inv__xi) [L54] inv__temp = inv__xsi - inv__xi [L55] int inv____CPAchecker_TMP_0; VAL [__return_104=0, __return_main=0, __tmp_1=2145386509, inv__A=2145386509, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386511, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386509] [L56] COND FALSE !(inv__temp > 1.0E-10) VAL [__return_104=0, __return_main=0, __tmp_1=2145386509, inv__A=2145386509, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386511, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386509] [L67] COND FALSE !(inv__temp < -1.0E-10) [L73] inv____CPAchecker_TMP_0 = 0 VAL [__return_104=0, __return_main=0, __tmp_1=2145386509, inv____CPAchecker_TMP_0=0, inv__A=2145386509, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386511, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386509] [L61] inv__cond = inv____CPAchecker_TMP_0 [L62] inv__xi = inv__xsi VAL [__return_104=0, __return_main=0, __tmp_1=2145386509, inv____CPAchecker_TMP_0=0, inv__A=2145386509, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386510, inv__xi_u={5:0}, inv__xsi=2145386510, main____CPAchecker_TMP_0=1, main__a=2145386509] [L51] COND FALSE !(!(inv__cond == 0)) [L80] __return_104 = inv__xi [L81] main__r = __return_104 [L82] int main____CPAchecker_TMP_1; VAL [__return_104=2145386510, __return_main=0, __tmp_1=2145386509, inv____CPAchecker_TMP_0=0, inv__A=2145386509, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386510, inv__xi_u={5:0}, inv__xsi=2145386510, main____CPAchecker_TMP_0=1, main__a=2145386509, main__r=2145386510] [L83] COND FALSE !(main__r >= 0) VAL [__return_104=2145386510, __return_main=0, __tmp_1=2145386509, inv____CPAchecker_TMP_0=0, inv__A=2145386509, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386510, inv__xi_u={5:0}, inv__xsi=2145386510, main____CPAchecker_TMP_0=1, main__a=2145386509, main__r=2145386510] [L108] main____CPAchecker_TMP_1 = 0 VAL [__return_104=2145386510, __return_main=0, __tmp_1=2145386509, inv____CPAchecker_TMP_0=0, inv__A=2145386509, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386510, inv__xi_u={5:0}, inv__xsi=2145386510, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386509, main__r=2145386510] [L90] int __tmp_2; [L91] __tmp_2 = main____CPAchecker_TMP_1 [L92] int __VERIFIER_assert__cond; [L93] __VERIFIER_assert__cond = __tmp_2 VAL [__return_104=2145386510, __return_main=0, __tmp_1=2145386509, __tmp_2=0, __VERIFIER_assert__cond=0, inv____CPAchecker_TMP_0=0, inv__A=2145386509, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386510, inv__xi_u={5:0}, inv__xsi=2145386510, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386509, main__r=2145386510] [L94] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_104=2145386510, __return_main=0, __tmp_1=2145386509, __tmp_2=0, __VERIFIER_assert__cond=0, inv____CPAchecker_TMP_0=0, inv__A=2145386509, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386510, inv__xi_u={5:0}, inv__xsi=2145386510, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386509, main__r=2145386510] [L96] reach_error() VAL [__return_104=2145386510, __return_main=0, __tmp_1=2145386509, __tmp_2=0, __VERIFIER_assert__cond=0, inv____CPAchecker_TMP_0=0, inv__A=2145386509, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386510, inv__xi_u={5:0}, inv__xsi=2145386510, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386509, main__r=2145386510] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 220 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 71 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 3 MinimizatonAttempts, 46 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:46:17,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/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_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 --- 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-5e519f3 [2022-11-02 20:46:20,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:46:20,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:46:20,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:46:20,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:46:20,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:46:20,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:46:20,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:46:20,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:46:20,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:46:20,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:46:20,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:46:20,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:46:20,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:46:20,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:46:20,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:46:20,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:46:20,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:46:20,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:46:20,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:46:20,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:46:20,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:46:20,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:46:20,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:46:20,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:46:20,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:46:20,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:46:20,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:46:20,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:46:20,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:46:20,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:46:20,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:46:20,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:46:20,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:46:20,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:46:20,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:46:20,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:46:20,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:46:20,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:46:20,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:46:20,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:46:20,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-02 20:46:20,180 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:46:20,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:46:20,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:46:20,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:46:20,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:46:20,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:46:20,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:46:20,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:46:20,187 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:46:20,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:46:20,188 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:46:20,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:46:20,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:46:20,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:46:20,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:46:20,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:46:20,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:46:20,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:46:20,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:46:20,191 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:46:20,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:46:20,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:46:20,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:46:20,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:46:20,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:46:20,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:46:20,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:46:20,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:46:20,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:46:20,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:46:20,194 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:46:20,194 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:46:20,194 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:46:20,194 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:46:20,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:46:20,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:46:20,195 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_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 [2022-11-02 20:46:20,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:46:20,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:46:20,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:46:20,645 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:46:20,646 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:46:20,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2022-11-02 20:46:20,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data/2b6eca365/3937d34ea48f465c8a748c356659f45d/FLAG5673ce15b [2022-11-02 20:46:21,283 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:46:21,286 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2022-11-02 20:46:21,297 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data/2b6eca365/3937d34ea48f465c8a748c356659f45d/FLAG5673ce15b [2022-11-02 20:46:21,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/data/2b6eca365/3937d34ea48f465c8a748c356659f45d [2022-11-02 20:46:21,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:46:21,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:46:21,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:46:21,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:46:21,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:46:21,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:21" (1/1) ... [2022-11-02 20:46:21,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b177c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:21, skipping insertion in model container [2022-11-02 20:46:21,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:21" (1/1) ... [2022-11-02 20:46:21,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:46:21,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:46:21,931 WARN L230 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_42174140-2b00-4445-9b36-e1d117754056/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2022-11-02 20:46:21,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:46:21,958 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:46:21,998 WARN L230 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_42174140-2b00-4445-9b36-e1d117754056/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2022-11-02 20:46:22,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:46:22,040 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:46:22,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22 WrapperNode [2022-11-02 20:46:22,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:46:22,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:46:22,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:46:22,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:46:22,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,104 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 99 [2022-11-02 20:46:22,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:46:22,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:46:22,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:46:22,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:46:22,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:46:22,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:46:22,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:46:22,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:46:22,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (1/1) ... [2022-11-02 20:46:22,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:46:22,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:46:22,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:46:22,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:46:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:46:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-02 20:46:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-02 20:46:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:46:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:46:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-02 20:46:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:46:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:46:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:46:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-02 20:46:22,402 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:46:22,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:46:24,791 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:46:24,798 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:46:24,798 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:46:24,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:24 BoogieIcfgContainer [2022-11-02 20:46:24,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:46:24,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:46:24,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:46:24,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:46:24,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:46:21" (1/3) ... [2022-11-02 20:46:24,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed8c248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:24, skipping insertion in model container [2022-11-02 20:46:24,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:22" (2/3) ... [2022-11-02 20:46:24,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed8c248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:24, skipping insertion in model container [2022-11-02 20:46:24,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:24" (3/3) ... [2022-11-02 20:46:24,809 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_Newton.c.p+cfa-reducer.c [2022-11-02 20:46:24,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:46:24,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:46:24,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:46:24,981 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=PETRI_NET, 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;@bc27500, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:46:24,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:46:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) [2022-11-02 20:46:25,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:46:25,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:46:25,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:25,010 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:46:25,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:25,016 INFO L85 PathProgramCache]: Analyzing trace with hash -938930996, now seen corresponding path program 1 times [2022-11-02 20:46:25,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:46:25,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653978335] [2022-11-02 20:46:25,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:25,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:46:25,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:46:25,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:46:25,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:46:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:25,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:46:25,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:46:25,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:25,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:46:25,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:46:25,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653978335] [2022-11-02 20:46:25,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653978335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:25,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:25,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:46:25,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881348684] [2022-11-02 20:46:25,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:25,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:25,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:46:25,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:25,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:25,338 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-02 20:46:27,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:46:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:46:27,717 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-11-02 20:46:27,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:27,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-02 20:46:27,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:46:27,728 INFO L225 Difference]: With dead ends: 32 [2022-11-02 20:46:27,728 INFO L226 Difference]: Without dead ends: 19 [2022-11-02 20:46:27,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:27,734 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:46:27,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-02 20:46:27,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-02 20:46:27,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-02 20:46:27,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2022-11-02 20:46:27,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2022-11-02 20:46:27,782 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 11 [2022-11-02 20:46:27,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:46:27,783 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-02 20:46:27,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-02 20:46:27,784 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-11-02 20:46:27,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:46:27,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:46:27,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:27,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:46:28,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:46:28,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:46:28,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:28,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1250925041, now seen corresponding path program 1 times [2022-11-02 20:46:28,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:46:28,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915582501] [2022-11-02 20:46:28,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:28,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:46:28,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:46:28,015 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:46:28,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:46:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:28,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:46:28,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:46:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:28,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:46:28,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:46:28,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915582501] [2022-11-02 20:46:28,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915582501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:28,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:28,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:46:28,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395440281] [2022-11-02 20:46:28,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:28,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:46:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:46:28,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:46:28,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:46:28,958 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:46:31,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:46:31,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:46:31,411 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2022-11-02 20:46:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:46:31,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Word has length 15 [2022-11-02 20:46:31,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:46:31,413 INFO L225 Difference]: With dead ends: 28 [2022-11-02 20:46:31,413 INFO L226 Difference]: Without dead ends: 21 [2022-11-02 20:46:31,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:46:31,416 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:46:31,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-02 20:46:31,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-02 20:46:31,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-11-02 20:46:31,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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) [2022-11-02 20:46:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-11-02 20:46:31,424 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 15 [2022-11-02 20:46:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:46:31,424 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-02 20:46:31,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:46:31,425 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-11-02 20:46:31,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:46:31,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:46:31,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:31,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:46:31,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:46:31,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:46:31,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:31,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1796523982, now seen corresponding path program 1 times [2022-11-02 20:46:31,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:46:31,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885441600] [2022-11-02 20:46:31,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:31,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:46:31,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:46:31,639 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:46:31,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:46:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:32,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:46:32,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:46:32,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:46:32,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:46:32,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:46:32,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885441600] [2022-11-02 20:46:32,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885441600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:32,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:32,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:46:32,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428065337] [2022-11-02 20:46:32,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:32,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:46:32,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:46:32,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:46:32,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:46:32,532 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:46:32,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:46:32,646 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-11-02 20:46:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:46:32,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Word has length 15 [2022-11-02 20:46:32,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:46:32,647 INFO L225 Difference]: With dead ends: 24 [2022-11-02 20:46:32,648 INFO L226 Difference]: Without dead ends: 20 [2022-11-02 20:46:32,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:46:32,650 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:46:32,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 63 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:46:32,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-02 20:46:32,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-02 20:46:32,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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) [2022-11-02 20:46:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2022-11-02 20:46:32,657 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 15 [2022-11-02 20:46:32,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:46:32,658 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-11-02 20:46:32,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:46:32,659 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2022-11-02 20:46:32,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:46:32,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:46:32,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:32,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:46:32,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:46:32,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:46:32,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:32,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1813534643, now seen corresponding path program 1 times [2022-11-02 20:46:32,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:46:32,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541487341] [2022-11-02 20:46:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:32,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:46:32,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:46:32,878 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:46:32,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42174140-2b00-4445-9b36-e1d117754056/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:46:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:37,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 20:46:37,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:47:01,046 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (= (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~inv__A~0#1| .cse0) .cse0)) |c_ULTIMATE.start_main_~inv__xsi~0#1|) (= |c_ULTIMATE.start_main_~inv__temp~0#1| (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~inv__xsi~0#1| .cse0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-02 20:47:24,595 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (= (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~inv__A~0#1| .cse0) .cse0)) |c_ULTIMATE.start_main_~inv__xsi~0#1|) (= |c_ULTIMATE.start_main_~inv__temp~0#1| (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~inv__xsi~0#1| .cse0))))) (not (fp.gt |c_ULTIMATE.start_main_~inv__temp~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-02 20:47:52,392 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (let ((.cse0 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~inv__xsi~0#1| .cse2)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (and (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (not (fp.lt .cse0 (fp.neg .cse1))) (= (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse2) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~inv__A~0#1| .cse2) .cse2)) |c_ULTIMATE.start_main_~inv__xsi~0#1|) (not (fp.gt .cse0 .cse1)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-02 20:48:20,395 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse3 (let ((.cse4 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse3) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~inv__A~0#1| .cse3) .cse3)))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse0 .cse3)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (and (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (= .cse0 |c_ULTIMATE.start_main_~inv__xi~0#1|) (not (fp.gt .cse1 .cse2)) (not (fp.lt .cse1 (fp.neg .cse2))) (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-02 20:48:48,565 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse3 (let ((.cse4 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (let ((.cse2 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse3) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~inv__A~0#1| .cse3) .cse3)))) (let ((.cse0 (fp.sub c_currentRoundingMode .cse2 .cse3)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (and (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (not (fp.gt .cse0 .cse1)) (not (fp.lt .cse0 (fp.neg .cse1))) (= .cse2 |c_ULTIMATE.start_main_~main__r~0#1|) (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-02 20:49:18,319 WARN L833 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse1) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~inv__A~0#1| .cse1) .cse1)))) (and (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (not (fp.lt (fp.sub roundNearestTiesToEven .cse0 .cse1) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0))))) (not (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 20.0)))))) is different from false [2022-11-02 20:49:20,386 WARN L855 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse1) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~inv__A~0#1| .cse1) .cse1)))) (and (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (not (fp.lt (fp.sub roundNearestTiesToEven .cse0 .cse1) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0))))) (not (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 20.0)))))) is different from true [2022-11-02 20:50:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-02 20:50:31,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:47,772 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~inv__xi~0#1|) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~inv__A~0#1| |c_ULTIMATE.start_main_~inv__xi~0#1|) |c_ULTIMATE.start_main_~inv__xi~0#1|)))) (let ((.cse0 (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~inv__xi~0#1|)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (fp.lt .cse0 (fp.neg .cse1)) (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.gt .cse0 .cse1)))) is different from false [2022-11-02 20:50:49,899 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse2 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~inv__xi~0#1|) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~inv__A~0#1| |c_ULTIMATE.start_main_~inv__xi~0#1|) |c_ULTIMATE.start_main_~inv__xi~0#1|)))) (let ((.cse0 (fp.sub c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~inv__xi~0#1|)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (fp.lt .cse0 (fp.neg .cse1)) (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.gt .cse0 .cse1)))) is different from true