./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8 --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 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:44:53,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:44:53,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:44:53,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:44:53,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:44:53,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:44:53,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:44:53,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:44:53,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:44:53,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:44:53,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:44:53,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:44:53,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:44:53,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:44:53,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:44:53,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:44:53,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:44:53,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:44:53,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:44:53,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:44:53,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:44:53,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:44:53,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:44:53,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:44:53,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:44:53,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:44:53,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:44:53,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:44:53,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:44:54,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:44:54,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:44:54,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:44:54,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:44:54,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:44:54,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:44:54,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:44:54,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:44:54,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:44:54,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:44:54,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:44:54,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:44:54,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:44:54,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:44:54,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:44:54,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:44:54,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:44:54,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:44:54,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:44:54,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:44:54,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:44:54,035 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:44:54,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:44:54,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:44:54,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:44:54,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:44:54,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:44:54,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:44:54,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:44:54,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:44:54,037 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:44:54,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:44:54,049 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:44:54,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:44:54,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:44:54,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:44:54,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:44:54,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:44:54,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:44:54,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:44:54,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:44:54,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:44:54,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:44:54,052 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:44:54,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:44:54,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:44:54,053 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_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 [2022-11-16 11:44:54,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:44:54,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:44:54,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:44:54,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:44:54,322 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:44:54,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2022-11-16 11:44:54,407 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data/7ee8fc549/5d8b7d80719045beaf426967212d1ead/FLAG5cab44414 [2022-11-16 11:44:54,890 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:44:54,891 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2022-11-16 11:44:54,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data/7ee8fc549/5d8b7d80719045beaf426967212d1ead/FLAG5cab44414 [2022-11-16 11:44:55,271 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data/7ee8fc549/5d8b7d80719045beaf426967212d1ead [2022-11-16 11:44:55,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:44:55,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:44:55,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:44:55,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:44:55,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:44:55,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e52b364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55, skipping insertion in model container [2022-11-16 11:44:55,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:44:55,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:44:55,500 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[1224,1237] [2022-11-16 11:44:55,539 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[2806,2819] [2022-11-16 11:44:55,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:44:55,549 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:44:55,561 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[1224,1237] [2022-11-16 11:44:55,571 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[2806,2819] [2022-11-16 11:44:55,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:44:55,586 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:44:55,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55 WrapperNode [2022-11-16 11:44:55,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:44:55,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:44:55,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:44:55,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:44:55,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,627 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2022-11-16 11:44:55,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:44:55,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:44:55,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:44:55,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:44:55,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,651 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:44:55,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:44:55,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:44:55,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:44:55,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (1/1) ... [2022-11-16 11:44:55,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:44:55,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:44:55,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:44:55,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:44:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:44:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:44:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:44:55,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:44:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 11:44:55,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 11:44:55,792 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:44:55,794 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:44:55,978 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:44:55,985 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:44:55,985 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:44:55,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:44:55 BoogieIcfgContainer [2022-11-16 11:44:55,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:44:55,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:44:55,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:44:55,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:44:55,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:44:55" (1/3) ... [2022-11-16 11:44:55,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db6bb82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:55, skipping insertion in model container [2022-11-16 11:44:55,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:55" (2/3) ... [2022-11-16 11:44:55,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db6bb82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:55, skipping insertion in model container [2022-11-16 11:44:55,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:44:55" (3/3) ... [2022-11-16 11:44:55,996 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_7.i [2022-11-16 11:44:56,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:44:56,017 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 11:44:56,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:44:56,075 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;@6cd79517, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:44:56,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 11:44:56,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 11:44:56,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:44:56,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:56,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:56,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2022-11-16 11:44:56,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:56,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95315074] [2022-11-16 11:44:56,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:56,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:56,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:56,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95315074] [2022-11-16 11:44:56,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95315074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:56,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:56,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:44:56,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759442002] [2022-11-16 11:44:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:56,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:44:56,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:56,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:44:56,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:44:56,353 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:56,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:56,398 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2022-11-16 11:44:56,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:44:56,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 11:44:56,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:56,421 INFO L225 Difference]: With dead ends: 57 [2022-11-16 11:44:56,421 INFO L226 Difference]: Without dead ends: 26 [2022-11-16 11:44:56,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:44:56,432 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:56,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:44:56,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-16 11:44:56,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-16 11:44:56,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:44:56,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-16 11:44:56,490 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2022-11-16 11:44:56,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:56,492 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-16 11:44:56,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-16 11:44:56,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:44:56,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:56,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:56,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:44:56,494 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:56,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:56,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2022-11-16 11:44:56,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:56,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994217005] [2022-11-16 11:44:56,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:56,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:44:56,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:44:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:44:56,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:44:56,611 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:44:56,613 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-16 11:44:56,615 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-16 11:44:56,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:44:56,620 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 11:44:56,624 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:44:56,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:44:56 BoogieIcfgContainer [2022-11-16 11:44:56,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:44:56,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:44:56,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:44:56,661 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:44:56,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:44:55" (3/4) ... [2022-11-16 11:44:56,665 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:44:56,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:44:56,669 INFO L158 Benchmark]: Toolchain (without parser) took 1387.27ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 49.0MB in the end (delta: 24.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-16 11:44:56,669 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:44:56,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.20ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 90.2MB in the end (delta: -16.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:44:56,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.12ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 88.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:44:56,674 INFO L158 Benchmark]: Boogie Preprocessor took 26.07ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 86.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:44:56,677 INFO L158 Benchmark]: RCFGBuilder took 332.41ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 74.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:44:56,677 INFO L158 Benchmark]: TraceAbstraction took 669.04ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 49.4MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-16 11:44:56,678 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 117.4MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:44:56,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.20ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 90.2MB in the end (delta: -16.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.12ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 88.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.07ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 86.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 332.41ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 74.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 669.04ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 49.4MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 117.4MB. Free memory is still 49.0MB. 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: 109]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 100. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L82] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L98] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L100] CALL, EXPR f(IN) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=109, x=109] [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=109, x=109] [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) VAL [IN=109] [L109] reach_error() VAL [IN=109] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 40 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:44:56,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8 --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 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:44:59,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:44:59,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:44:59,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:44:59,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:44:59,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:44:59,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:44:59,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:44:59,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:44:59,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:44:59,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:44:59,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:44:59,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:44:59,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:44:59,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:44:59,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:44:59,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:44:59,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:44:59,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:44:59,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:44:59,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:44:59,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:44:59,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:44:59,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:44:59,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:44:59,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:44:59,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:44:59,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:44:59,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:44:59,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:44:59,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:44:59,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:44:59,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:44:59,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:44:59,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:44:59,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:44:59,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:44:59,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:44:59,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:44:59,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:44:59,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:44:59,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-16 11:44:59,356 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:44:59,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:44:59,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:44:59,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:44:59,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:44:59,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:44:59,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:44:59,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:44:59,359 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:44:59,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:44:59,360 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:44:59,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:44:59,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:44:59,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:44:59,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:44:59,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:44:59,361 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:44:59,361 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:44:59,362 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:44:59,362 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:44:59,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:44:59,362 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:44:59,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:44:59,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:44:59,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:44:59,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:44:59,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:44:59,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:44:59,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:44:59,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:44:59,364 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:44:59,364 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:44:59,365 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:44:59,365 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:44:59,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:44:59,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:44:59,365 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_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bba7076723828a76d549dab99f9f19216b374670dd0bb1f48d42a5f4a5ac3a7 [2022-11-16 11:44:59,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:44:59,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:44:59,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:44:59,775 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:44:59,776 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:44:59,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2022-11-16 11:44:59,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data/6ed6744e7/65bb547839244d58bf9d3628934d605c/FLAGa725692cf [2022-11-16 11:45:00,423 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:45:00,423 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i [2022-11-16 11:45:00,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data/6ed6744e7/65bb547839244d58bf9d3628934d605c/FLAGa725692cf [2022-11-16 11:45:00,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/data/6ed6744e7/65bb547839244d58bf9d3628934d605c [2022-11-16 11:45:00,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:45:00,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:45:00,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:45:00,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:45:00,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:45:00,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:45:00" (1/1) ... [2022-11-16 11:45:00,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7722a312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:00, skipping insertion in model container [2022-11-16 11:45:00,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:45:00" (1/1) ... [2022-11-16 11:45:00,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:45:00,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:45:00,962 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[1224,1237] [2022-11-16 11:45:00,985 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[2806,2819] [2022-11-16 11:45:00,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:45:01,000 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:45:01,027 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[1224,1237] [2022-11-16 11:45:01,036 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/sv-benchmarks/c/combinations/gcd_4+newton_1_7.i[2806,2819] [2022-11-16 11:45:01,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:45:01,051 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:45:01,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01 WrapperNode [2022-11-16 11:45:01,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:45:01,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:45:01,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:45:01,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:45:01,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,125 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2022-11-16 11:45:01,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:45:01,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:45:01,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:45:01,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:45:01,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,174 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:45:01,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:45:01,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:45:01,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:45:01,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (1/1) ... [2022-11-16 11:45:01,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:45:01,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:45:01,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:45:01,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:45:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:45:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 11:45:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:45:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:45:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 11:45:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 11:45:01,378 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:45:01,381 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:45:08,343 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:45:08,351 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:45:08,351 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:45:08,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:45:08 BoogieIcfgContainer [2022-11-16 11:45:08,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:45:08,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:45:08,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:45:08,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:45:08,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:45:00" (1/3) ... [2022-11-16 11:45:08,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413d06ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:45:08, skipping insertion in model container [2022-11-16 11:45:08,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:01" (2/3) ... [2022-11-16 11:45:08,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413d06ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:45:08, skipping insertion in model container [2022-11-16 11:45:08,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:45:08" (3/3) ... [2022-11-16 11:45:08,365 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_7.i [2022-11-16 11:45:08,386 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:45:08,386 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 11:45:08,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:45:08,456 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;@5707acf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:45:08,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-16 11:45:08,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 11:45:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:45:08,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:08,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:08,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2022-11-16 11:45:08,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:45:08,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065519968] [2022-11-16 11:45:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:08,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:45:08,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:45:08,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:45:08,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 11:45:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:09,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 11:45:09,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:45:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:09,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:45:09,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:45:09,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065519968] [2022-11-16 11:45:09,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065519968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:09,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:09,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:45:09,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840192471] [2022-11-16 11:45:09,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:10,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:45:10,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:45:10,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:45:10,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:45:10,027 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:10,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:10,059 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2022-11-16 11:45:10,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:45:10,063 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 11:45:10,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:10,079 INFO L225 Difference]: With dead ends: 57 [2022-11-16 11:45:10,081 INFO L226 Difference]: Without dead ends: 26 [2022-11-16 11:45:10,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:45:10,091 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:10,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:45:10,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-16 11:45:10,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-16 11:45:10,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 11:45:10,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-16 11:45:10,142 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2022-11-16 11:45:10,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:10,143 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-16 11:45:10,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-16 11:45:10,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:45:10,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:10,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:10,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:45:10,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:45:10,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:10,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:10,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2022-11-16 11:45:10,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:45:10,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930616032] [2022-11-16 11:45:10,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:10,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:45:10,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:45:10,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:45:10,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 11:45:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:45:14,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:45:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:45:18,976 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-16 11:45:18,976 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:45:18,978 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-16 11:45:18,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-16 11:45:19,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:45:19,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:45:19,186 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 11:45:19,193 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:45:19,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:45:19 BoogieIcfgContainer [2022-11-16 11:45:19,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:45:19,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:45:19,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:45:19,242 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:45:19,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:45:08" (3/4) ... [2022-11-16 11:45:19,245 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 11:45:19,298 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:45:19,299 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:45:19,300 INFO L158 Benchmark]: Toolchain (without parser) took 18517.62ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 39.8MB in the beginning and 41.7MB in the end (delta: -1.9MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-11-16 11:45:19,300 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 60.8MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:45:19,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.93ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 27.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:45:19,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.09ms. Allocated memory is still 60.8MB. Free memory was 27.8MB in the beginning and 45.4MB in the end (delta: -17.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-11-16 11:45:19,302 INFO L158 Benchmark]: Boogie Preprocessor took 60.72ms. Allocated memory is still 60.8MB. Free memory was 45.4MB in the beginning and 43.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:45:19,302 INFO L158 Benchmark]: RCFGBuilder took 7166.52ms. Allocated memory is still 60.8MB. Free memory was 43.7MB in the beginning and 31.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:45:19,303 INFO L158 Benchmark]: TraceAbstraction took 10884.43ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 30.8MB in the beginning and 43.5MB in the end (delta: -12.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-11-16 11:45:19,303 INFO L158 Benchmark]: Witness Printer took 57.45ms. Allocated memory is still 81.8MB. Free memory was 43.5MB in the beginning and 41.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:45:19,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 60.8MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.93ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 27.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.09ms. Allocated memory is still 60.8MB. Free memory was 27.8MB in the beginning and 45.4MB in the end (delta: -17.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.72ms. Allocated memory is still 60.8MB. Free memory was 45.4MB in the beginning and 43.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 7166.52ms. Allocated memory is still 60.8MB. Free memory was 43.7MB in the beginning and 31.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10884.43ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 30.8MB in the beginning and 43.5MB in the end (delta: -12.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Witness Printer took 57.45ms. Allocated memory is still 81.8MB. Free memory was 43.5MB in the beginning and 41.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 109]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L82] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L98] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L100] CALL, EXPR f(IN) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.068535327911377, \result=-0.8771225214004517, x=-1.068535327911377] [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.068535327911377, \result=0.4855014979839325, x=-1.068535327911377] [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) VAL [IN=-1.068535327911377, x=0.7380965948104858] [L109] reach_error() VAL [IN=-1.068535327911377, x=0.7380965948104858] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 10.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 40 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:45:19,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91ea951-4a68-486e-b77b-0346a0cdae32/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE