./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1211a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1211a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro --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 c138455c2c75a696dc60caebdab82a6c0df133a81cb55608013e037f91912548 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:04:04,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:04:04,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:04:04,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:04:04,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:04:04,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:04:04,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:04:04,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:04:04,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:04:04,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:04:04,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:04:04,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:04:04,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:04:04,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:04:04,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:04:04,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:04:04,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:04:04,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:04:04,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:04:04,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:04:04,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:04:04,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:04:04,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:04:04,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:04:04,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:04:04,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:04:04,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:04:04,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:04:04,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:04:04,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:04:04,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:04:04,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:04:04,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:04:04,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:04:04,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:04:04,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:04:04,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:04:04,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:04:04,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:04:04,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:04:04,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:04:04,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 21:04:04,794 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:04:04,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:04:04,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:04:04,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:04:04,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:04:04,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:04:04,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:04:04,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:04:04,802 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:04:04,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:04:04,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:04:04,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:04:04,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:04:04,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:04:04,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:04:04,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:04:04,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:04:04,804 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:04:04,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:04:04,805 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:04:04,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:04:04,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:04:04,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:04:04,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:04:04,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:04:04,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:04:04,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:04:04,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:04:04,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:04:04,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:04:04,809 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:04:04,809 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:04:04,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:04:04,809 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_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c138455c2c75a696dc60caebdab82a6c0df133a81cb55608013e037f91912548 [2022-11-18 21:04:05,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:04:05,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:04:05,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:04:05,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:04:05,207 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:04:05,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-newlib/double_req_bl_1211a.c [2022-11-18 21:04:05,298 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data/e325e634e/0003e13d68fa437ca9f8823c863d1dd5/FLAGbc01f06f0 [2022-11-18 21:04:05,873 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:04:05,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/sv-benchmarks/c/float-newlib/double_req_bl_1211a.c [2022-11-18 21:04:05,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data/e325e634e/0003e13d68fa437ca9f8823c863d1dd5/FLAGbc01f06f0 [2022-11-18 21:04:06,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data/e325e634e/0003e13d68fa437ca9f8823c863d1dd5 [2022-11-18 21:04:06,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:04:06,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:04:06,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:04:06,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:04:06,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:04:06,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@687b21c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06, skipping insertion in model container [2022-11-18 21:04:06,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:04:06,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:04:06,534 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/sv-benchmarks/c/float-newlib/double_req_bl_1211a.c[3716,3729] [2022-11-18 21:04:06,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:04:06,558 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:04:06,600 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/sv-benchmarks/c/float-newlib/double_req_bl_1211a.c[3716,3729] [2022-11-18 21:04:06,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:04:06,617 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:04:06,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06 WrapperNode [2022-11-18 21:04:06,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:04:06,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:04:06,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:04:06,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:04:06,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,679 INFO L138 Inliner]: procedures = 20, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 243 [2022-11-18 21:04:06,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:04:06,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:04:06,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:04:06,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:04:06,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:04:06,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:04:06,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:04:06,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:04:06,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (1/1) ... [2022-11-18 21:04:06,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:04:06,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:04:06,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:04:06,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:04:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:04:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:04:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:04:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-18 21:04:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:04:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-18 21:04:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:04:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:04:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-18 21:04:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:04:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:04:06,960 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:04:06,962 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:04:07,519 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:04:07,526 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:04:07,535 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-18 21:04:07,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:04:07 BoogieIcfgContainer [2022-11-18 21:04:07,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:04:07,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:04:07,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:04:07,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:04:07,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:04:06" (1/3) ... [2022-11-18 21:04:07,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd0a6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:04:07, skipping insertion in model container [2022-11-18 21:04:07,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:06" (2/3) ... [2022-11-18 21:04:07,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd0a6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:04:07, skipping insertion in model container [2022-11-18 21:04:07,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:04:07" (3/3) ... [2022-11-18 21:04:07,549 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211a.c [2022-11-18 21:04:07,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:04:07,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:04:07,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:04:07,658 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;@5269350f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:04:07,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:04:07,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 50 states have (on average 1.66) internal successors, (83), 51 states have internal predecessors, (83), 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) [2022-11-18 21:04:07,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 21:04:07,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:04:07,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:07,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:04:07,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:07,683 INFO L85 PathProgramCache]: Analyzing trace with hash -892017235, now seen corresponding path program 1 times [2022-11-18 21:04:07,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:07,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913927422] [2022-11-18 21:04:07,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:07,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:07,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:07,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913927422] [2022-11-18 21:04:07,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913927422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:07,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:07,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:04:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131752243] [2022-11-18 21:04:07,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:07,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 21:04:07,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:08,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 21:04:08,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:04:08,007 INFO L87 Difference]: Start difference. First operand has 52 states, 50 states have (on average 1.66) internal successors, (83), 51 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:08,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:04:08,053 INFO L93 Difference]: Finished difference Result 102 states and 164 transitions. [2022-11-18 21:04:08,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:04:08,056 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 21:04:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:04:08,065 INFO L225 Difference]: With dead ends: 102 [2022-11-18 21:04:08,066 INFO L226 Difference]: Without dead ends: 49 [2022-11-18 21:04:08,071 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 [2022-11-18 21:04:08,077 INFO L413 NwaCegarLoop]: 58 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, 58 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 [2022-11-18 21:04:08,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:04:08,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-18 21:04:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-18 21:04:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 48 states have internal predecessors, (55), 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) [2022-11-18 21:04:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-11-18 21:04:08,119 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 15 [2022-11-18 21:04:08,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:04:08,119 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-11-18 21:04:08,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:04:08,120 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-11-18 21:04:08,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 21:04:08,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:04:08,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:08,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:04:08,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:04:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:08,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1752581688, now seen corresponding path program 1 times [2022-11-18 21:04:08,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:08,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910044572] [2022-11-18 21:04:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:08,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:04:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:04:08,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:04:08,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910044572] [2022-11-18 21:04:08,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910044572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:04:08,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:04:08,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:04:08,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096707274] [2022-11-18 21:04:08,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:04:08,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:04:08,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:04:08,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:04:08,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:04:08,359 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-18 21:04:08,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:04:08,383 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2022-11-18 21:04:08,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:04:08,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-11-18 21:04:08,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:04:08,386 INFO L225 Difference]: With dead ends: 52 [2022-11-18 21:04:08,387 INFO L226 Difference]: Without dead ends: 49 [2022-11-18 21:04:08,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:04:08,391 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:04:08,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:04:08,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-18 21:04:08,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-18 21:04:08,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.125) internal successors, (54), 48 states have internal predecessors, (54), 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) [2022-11-18 21:04:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-11-18 21:04:08,408 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 18 [2022-11-18 21:04:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:04:08,411 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-11-18 21:04:08,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-18 21:04:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-11-18 21:04:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 21:04:08,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:04:08,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:08,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:04:08,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:04:08,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:08,425 INFO L85 PathProgramCache]: Analyzing trace with hash 581418946, now seen corresponding path program 1 times [2022-11-18 21:04:08,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:04:08,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457495071] [2022-11-18 21:04:08,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:08,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:04:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:04:08,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:04:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:04:08,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:04:08,965 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:04:08,966 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 21:04:08,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:04:08,973 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-18 21:04:08,977 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:04:09,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:04:09 BoogieIcfgContainer [2022-11-18 21:04:09,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:04:09,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:04:09,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:04:09,031 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:04:09,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:04:07" (3/4) ... [2022-11-18 21:04:09,034 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:04:09,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:04:09,035 INFO L158 Benchmark]: Toolchain (without parser) took 2827.86ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 73.0MB in the beginning and 103.6MB in the end (delta: -30.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:04:09,035 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 82.0MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:04:09,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.36ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 82.3MB in the end (delta: -9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 21:04:09,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.15ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 79.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:04:09,037 INFO L158 Benchmark]: Boogie Preprocessor took 41.00ms. Allocated memory is still 109.1MB. Free memory was 79.6MB in the beginning and 77.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:04:09,037 INFO L158 Benchmark]: RCFGBuilder took 816.22ms. Allocated memory is still 109.1MB. Free memory was 77.0MB in the beginning and 52.4MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 21:04:09,037 INFO L158 Benchmark]: TraceAbstraction took 1488.88ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 51.3MB in the beginning and 103.6MB in the end (delta: -52.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-11-18 21:04:09,038 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 138.4MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:04:09,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 82.0MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.36ms. Allocated memory is still 109.1MB. Free memory was 72.8MB in the beginning and 82.3MB in the end (delta: -9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.15ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 79.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.00ms. Allocated memory is still 109.1MB. Free memory was 79.6MB in the beginning and 77.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 816.22ms. Allocated memory is still 109.1MB. Free memory was 77.0MB in the beginning and 52.4MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1488.88ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 51.3MB in the beginning and 103.6MB in the end (delta: -52.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 138.4MB. Free memory is still 103.6MB. 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: 152]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 122, overapproximation of someBinaryArithmeticDOUBLEoperation at line 146, overapproximation of bitwiseAnd at line 121, overapproximation of someBinaryDOUBLEComparisonOperation at line 151. Possible FailurePath: [L20] static const double one_modf = 1.0; VAL [one_modf=1] [L146] double x = 1.0 / 0.0; [L147] double iptr = __VERIFIER_nondet_double(); [L148] CALL, EXPR modf_double(x, &iptr) [L23] __int32_t i0, i1, j0; [L24] __uint32_t i; VAL [\old(x)=4611686018427387925, iptr={6:0}, iptr={6:0}, one_modf=1, x=4611686018427387925] [L26] ieee_double_shape_type ew_u; [L27] ew_u.value = (x) [L28] EXPR ew_u.parts.msw [L28] (i0) = ew_u.parts.msw [L29] EXPR ew_u.parts.lsw [L29] (i1) = ew_u.parts.lsw [L31] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=4611686018427387925, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1024, one_modf=1, x=4611686018427387925] [L32] COND TRUE j0 < 20 VAL [\old(x)=4611686018427387925, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1024, one_modf=1, x=4611686018427387925] [L33] COND TRUE j0 < 0 VAL [\old(x)=4611686018427387925, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1024, one_modf=1, x=4611686018427387925] [L35] ieee_double_shape_type iw_u; [L36] iw_u.parts.msw = (i0 & 0x80000000) [L37] iw_u.parts.lsw = (0) [L38] EXPR iw_u.value [L38] (*iptr) = iw_u.value [L40] return x; VAL [\old(x)=4611686018427387925, \result=4611686018427387925, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1024, one_modf=1, x=4611686018427387925] [L148] RET, EXPR modf_double(x, &iptr) [L148] double res = modf_double(x, &iptr); [L151] EXPR \read(iptr) [L151] CALL, EXPR isinf_double(iptr) [L114] __int32_t hx, lx; VAL [\old(x)=4611686018427387924, one_modf=1, x=4611686018427387924] [L116] ieee_double_shape_type ew_u; [L117] ew_u.value = (x) [L118] EXPR ew_u.parts.msw [L118] (hx) = ew_u.parts.msw [L119] EXPR ew_u.parts.lsw [L119] (lx) = ew_u.parts.lsw [L121] hx &= 0x7fffffff [L122] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L123] hx = 0x7ff00000 - hx [L124] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=4611686018427387924, \result=2, hx=2146435072, lx=0, one_modf=1, x=4611686018427387924] [L151] RET, EXPR isinf_double(iptr) [L151] isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0) [L151] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [\read(iptr)=4611686018427387924, iptr={6:0}, isinf_double(iptr)=2, isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0)=1, one_modf=1, res=4611686018427387925, res == 0.0 && __signbit_double(res) == 0=0, x=4611686018427387925] [L151] isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0) VAL [\read(iptr)=4611686018427387924, iptr={6:0}, isinf_double(iptr)=2, isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0)=1, one_modf=1, res=4611686018427387925, res == 0.0 && __signbit_double(res) == 0=0, x=4611686018427387925] [L151] COND TRUE isinf_double(iptr) && !(res == 0.0 && __signbit_double(res) == 0) [L152] reach_error() VAL [iptr={6:0}, one_modf=1, res=4611686018427387925, x=4611686018427387925] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 113 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2022-11-18 21:04:09,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1211a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro --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 c138455c2c75a696dc60caebdab82a6c0df133a81cb55608013e037f91912548 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:04:11,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:04:11,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:04:11,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:04:11,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:04:11,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:04:11,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:04:11,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:04:11,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:04:11,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:04:11,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:04:11,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:04:11,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:04:11,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:04:11,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:04:11,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:04:11,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:04:11,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:04:11,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:04:11,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:04:11,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:04:11,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:04:11,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:04:11,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:04:11,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:04:11,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:04:11,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:04:11,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:04:11,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:04:11,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:04:11,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:04:11,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:04:11,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:04:11,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:04:11,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:04:11,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:04:11,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:04:11,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:04:11,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:04:11,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:04:11,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:04:11,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 21:04:11,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:04:11,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:04:11,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:04:11,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:04:11,642 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:04:11,642 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:04:11,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:04:11,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:04:11,645 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:04:11,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:04:11,646 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:04:11,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:04:11,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:04:11,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:04:11,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:04:11,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:04:11,648 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 21:04:11,649 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 21:04:11,649 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 21:04:11,649 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:04:11,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:04:11,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:04:11,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:04:11,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:04:11,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:04:11,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:04:11,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:04:11,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:04:11,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:04:11,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:04:11,653 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 21:04:11,653 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 21:04:11,654 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:04:11,654 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:04:11,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:04:11,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 21:04:11,655 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_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c138455c2c75a696dc60caebdab82a6c0df133a81cb55608013e037f91912548 [2022-11-18 21:04:12,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:04:12,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:04:12,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:04:12,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:04:12,128 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:04:12,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-newlib/double_req_bl_1211a.c [2022-11-18 21:04:12,207 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data/91bd5eb9e/72ba6bd946ff4559ad8a00a4def04a0d/FLAG15d2bf2b8 [2022-11-18 21:04:12,694 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:04:12,694 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/sv-benchmarks/c/float-newlib/double_req_bl_1211a.c [2022-11-18 21:04:12,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data/91bd5eb9e/72ba6bd946ff4559ad8a00a4def04a0d/FLAG15d2bf2b8 [2022-11-18 21:04:13,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/data/91bd5eb9e/72ba6bd946ff4559ad8a00a4def04a0d [2022-11-18 21:04:13,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:04:13,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:04:13,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:04:13,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:04:13,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:04:13,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69efb1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13, skipping insertion in model container [2022-11-18 21:04:13,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:04:13,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:04:13,405 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/sv-benchmarks/c/float-newlib/double_req_bl_1211a.c[3716,3729] [2022-11-18 21:04:13,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:04:13,491 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:04:13,562 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/sv-benchmarks/c/float-newlib/double_req_bl_1211a.c[3716,3729] [2022-11-18 21:04:13,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:04:13,579 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:04:13,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13 WrapperNode [2022-11-18 21:04:13,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:04:13,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:04:13,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:04:13,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:04:13,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,649 INFO L138 Inliner]: procedures = 23, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 242 [2022-11-18 21:04:13,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:04:13,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:04:13,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:04:13,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:04:13,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,699 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:04:13,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:04:13,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:04:13,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:04:13,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (1/1) ... [2022-11-18 21:04:13,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:04:13,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:04:13,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:04:13,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:04:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:04:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-18 21:04:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-18 21:04:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 21:04:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:04:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-18 21:04:13,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 21:04:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:04:13,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:04:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 21:04:13,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:04:13,898 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:04:13,900 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:04:16,607 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:04:16,615 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:04:16,615 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-18 21:04:16,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:04:16 BoogieIcfgContainer [2022-11-18 21:04:16,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:04:16,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:04:16,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:04:16,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:04:16,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:04:13" (1/3) ... [2022-11-18 21:04:16,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e573d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:04:16, skipping insertion in model container [2022-11-18 21:04:16,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:04:13" (2/3) ... [2022-11-18 21:04:16,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e573d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:04:16, skipping insertion in model container [2022-11-18 21:04:16,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:04:16" (3/3) ... [2022-11-18 21:04:16,633 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211a.c [2022-11-18 21:04:16,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:04:16,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:04:16,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:04:16,720 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;@202a4159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:04:16,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:04:16,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 50 states have (on average 1.66) internal successors, (83), 51 states have internal predecessors, (83), 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) [2022-11-18 21:04:16,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 21:04:16,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:04:16,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:04:16,735 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:04:16,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:04:16,741 INFO L85 PathProgramCache]: Analyzing trace with hash -892017235, now seen corresponding path program 1 times [2022-11-18 21:04:16,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:04:16,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143808654] [2022-11-18 21:04:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:04:16,757 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 [2022-11-18 21:04:16,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:04:16,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 21:04:16,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:04:16,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 139 [2022-11-18 21:04:17,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 21:04:17,102 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-18 21:04:17,106 INFO L158 Benchmark]: Toolchain (without parser) took 4033.63ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 51.5MB in the beginning and 49.8MB in the end (delta: 1.6MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-11-18 21:04:17,107 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 51.0MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:04:17,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.20ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 50.7MB in the end (delta: 487.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 21:04:17,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.21ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 48.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:04:17,108 INFO L158 Benchmark]: Boogie Preprocessor took 55.21ms. Allocated memory is still 69.2MB. Free memory was 48.4MB in the beginning and 45.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:04:17,109 INFO L158 Benchmark]: RCFGBuilder took 2915.25ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 45.9MB in the beginning and 62.0MB in the end (delta: -16.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-11-18 21:04:17,109 INFO L158 Benchmark]: TraceAbstraction took 479.54ms. Allocated memory is still 88.1MB. Free memory was 61.2MB in the beginning and 49.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 21:04:17,113 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 51.0MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.20ms. Allocated memory is still 69.2MB. Free memory was 51.2MB in the beginning and 50.7MB in the end (delta: 487.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.21ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 48.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.21ms. Allocated memory is still 69.2MB. Free memory was 48.4MB in the beginning and 45.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2915.25ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 45.9MB in the beginning and 62.0MB in the end (delta: -16.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 479.54ms. Allocated memory is still 88.1MB. Free memory was 61.2MB in the beginning and 49.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 21:04:17,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73f56869-c88a-49a6-8dad-67cba0b421c2/bin/uautomizer-TMbwUNV5ro/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) with exit command (exit)) Received EOF on stdin. No stderr output.