./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ --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 e0ade1ef6f39670f85f34fd118229c96ac1c225bb515b821a13b4050f3a28ad6 --- 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-dbf71c6-m [2022-10-17 10:11:21,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:11:21,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:11:22,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:11:22,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:11:22,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:11:22,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:11:22,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:11:22,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:11:22,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:11:22,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:11:22,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:11:22,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:11:22,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:11:22,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:11:22,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:11:22,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:11:22,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:11:22,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:11:22,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:11:22,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:11:22,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:11:22,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:11:22,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:11:22,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:11:22,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:11:22,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:11:22,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:11:22,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:11:22,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:11:22,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:11:22,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:11:22,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:11:22,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:11:22,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:11:22,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:11:22,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:11:22,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:11:22,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:11:22,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:11:22,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:11:22,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:11:22,119 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:11:22,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:11:22,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:11:22,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:11:22,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:11:22,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:11:22,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:11:22,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:11:22,127 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:11:22,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:11:22,129 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:11:22,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:11:22,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:11:22,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:11:22,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:11:22,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:11:22,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:11:22,130 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:11:22,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:11:22,131 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:11:22,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:11:22,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:11:22,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:11:22,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:11:22,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:11:22,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:11:22,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:11:22,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:11:22,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:11:22,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:11:22,140 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:11:22,140 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:11:22,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:11:22,141 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_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0ade1ef6f39670f85f34fd118229c96ac1c225bb515b821a13b4050f3a28ad6 [2022-10-17 10:11:22,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:11:22,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:11:22,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:11:22,451 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:11:22,452 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:11:22,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2022-10-17 10:11:22,533 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data/01113661d/ff942db062e242cab6fb1630b2e781aa/FLAGebce4f2e6 [2022-10-17 10:11:23,069 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:11:23,071 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2022-10-17 10:11:23,083 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data/01113661d/ff942db062e242cab6fb1630b2e781aa/FLAGebce4f2e6 [2022-10-17 10:11:23,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data/01113661d/ff942db062e242cab6fb1630b2e781aa [2022-10-17 10:11:23,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:11:23,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:11:23,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:11:23,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:11:23,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:11:23,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:23,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61acb1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23, skipping insertion in model container [2022-10-17 10:11:23,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:23,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:11:23,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:11:23,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2022-10-17 10:11:23,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:11:23,847 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:11:23,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2022-10-17 10:11:23,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:11:23,969 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:11:23,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23 WrapperNode [2022-10-17 10:11:23,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:11:23,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:11:23,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:11:23,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:11:23,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,067 INFO L138 Inliner]: procedures = 20, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 285 [2022-10-17 10:11:24,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:11:24,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:11:24,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:11:24,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:11:24,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:11:24,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:11:24,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:11:24,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:11:24,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (1/1) ... [2022-10-17 10:11:24,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:11:24,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:11:24,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:11:24,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:11:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:11:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:11:24,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:11:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-17 10:11:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:11:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-10-17 10:11:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-10-17 10:11:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-17 10:11:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-10-17 10:11:24,288 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-10-17 10:11:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:11:24,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:11:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:11:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-10-17 10:11:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:11:24,459 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:11:24,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:11:25,317 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:11:25,332 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:11:25,332 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-10-17 10:11:25,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:11:25 BoogieIcfgContainer [2022-10-17 10:11:25,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:11:25,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:11:25,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:11:25,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:11:25,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:11:23" (1/3) ... [2022-10-17 10:11:25,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c942cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:11:25, skipping insertion in model container [2022-10-17 10:11:25,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:23" (2/3) ... [2022-10-17 10:11:25,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c942cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:11:25, skipping insertion in model container [2022-10-17 10:11:25,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:11:25" (3/3) ... [2022-10-17 10:11:25,347 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2022-10-17 10:11:25,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:11:25,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:11:25,415 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:11:25,423 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;@5ff3db99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:11:25,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:11:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 102 states have (on average 1.7352941176470589) internal successors, (177), 103 states have internal predecessors, (177), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:11:25,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 10:11:25,436 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:11:25,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:11:25,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:11:25,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:11:25,444 INFO L85 PathProgramCache]: Analyzing trace with hash -255181836, now seen corresponding path program 1 times [2022-10-17 10:11:25,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:11:25,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204741487] [2022-10-17 10:11:25,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:11:25,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:11:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:11:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:11:25,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:11:25,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204741487] [2022-10-17 10:11:25,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204741487] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:11:25,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:11:25,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:11:25,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132528380] [2022-10-17 10:11:25,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:11:25,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:11:25,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:11:25,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:11:25,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:11:25,811 INFO L87 Difference]: Start difference. First operand has 110 states, 102 states have (on average 1.7352941176470589) internal successors, (177), 103 states have internal predecessors, (177), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:11:25,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:11:25,904 INFO L93 Difference]: Finished difference Result 218 states and 372 transitions. [2022-10-17 10:11:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:11:25,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-17 10:11:25,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:11:25,920 INFO L225 Difference]: With dead ends: 218 [2022-10-17 10:11:25,920 INFO L226 Difference]: Without dead ends: 107 [2022-10-17 10:11:25,925 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 [2022-10-17 10:11:25,930 INFO L413 NwaCegarLoop]: 160 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, 160 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 [2022-10-17 10:11:25,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:11:25,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-17 10:11:25,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-10-17 10:11:25,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 100 states have (on average 1.49) internal successors, (149), 100 states have internal predecessors, (149), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:11:25,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 157 transitions. [2022-10-17 10:11:25,980 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 157 transitions. Word has length 11 [2022-10-17 10:11:25,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:11:25,981 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 157 transitions. [2022-10-17 10:11:25,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:11:25,981 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 157 transitions. [2022-10-17 10:11:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 10:11:25,982 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:11:25,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:11:25,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:11:25,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:11:25,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:11:25,984 INFO L85 PathProgramCache]: Analyzing trace with hash 620870780, now seen corresponding path program 1 times [2022-10-17 10:11:25,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:11:25,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453820219] [2022-10-17 10:11:25,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:11:25,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:11:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:11:26,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:11:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:11:26,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:11:26,332 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:11:26,334 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:11:26,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:11:26,340 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 10:11:26,344 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:11:26,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:11:26 BoogieIcfgContainer [2022-10-17 10:11:26,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:11:26,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:11:26,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:11:26,397 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:11:26,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:11:25" (3/4) ... [2022-10-17 10:11:26,401 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:11:26,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:11:26,402 INFO L158 Benchmark]: Toolchain (without parser) took 2994.32ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 73.6MB in the beginning and 64.2MB in the end (delta: 9.4MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-10-17 10:11:26,403 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory was 69.1MB in the beginning and 69.1MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:11:26,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.90ms. Allocated memory is still 98.6MB. Free memory was 73.3MB in the beginning and 66.8MB in the end (delta: 6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:11:26,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.18ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 63.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:11:26,405 INFO L158 Benchmark]: Boogie Preprocessor took 115.84ms. Allocated memory is still 98.6MB. Free memory was 63.2MB in the beginning and 59.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:11:26,406 INFO L158 Benchmark]: RCFGBuilder took 1144.70ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 59.7MB in the beginning and 72.2MB in the end (delta: -12.6MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2022-10-17 10:11:26,406 INFO L158 Benchmark]: TraceAbstraction took 1056.89ms. Allocated memory is still 119.5MB. Free memory was 71.7MB in the beginning and 65.0MB in the end (delta: 6.7MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-10-17 10:11:26,407 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 119.5MB. Free memory was 65.0MB in the beginning and 64.2MB in the end (delta: 809.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:11:26,411 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 98.6MB. Free memory was 69.1MB in the beginning and 69.1MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.90ms. Allocated memory is still 98.6MB. Free memory was 73.3MB in the beginning and 66.8MB in the end (delta: 6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.18ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 63.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.84ms. Allocated memory is still 98.6MB. Free memory was 63.2MB in the beginning and 59.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1144.70ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 59.7MB in the beginning and 72.2MB in the end (delta: -12.6MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1056.89ms. Allocated memory is still 119.5MB. Free memory was 71.7MB in the beginning and 65.0MB in the end (delta: 6.7MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 119.5MB. Free memory was 65.0MB in the beginning and 64.2MB in the end (delta: 809.4kB). 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: 270]: 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 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 269. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L265] double x = 0.0; [L266] double y = 0.0; [L267] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=0, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=0, lx=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, ix=0, iy=0, lx=1, ly=-1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=0, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, ix=0, iy=0, lx=1, ly=-1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L267] RET, EXPR __ieee754_atan2(y, x) [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, res == 0.0 && __signbit_double(res) == 0=0, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L269] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L270] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, 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, 160 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 160 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-17 10:11:26,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ --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 e0ade1ef6f39670f85f34fd118229c96ac1c225bb515b821a13b4050f3a28ad6 --- 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-dbf71c6-m [2022-10-17 10:11:28,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:11:28,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:11:28,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:11:28,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:11:28,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:11:28,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:11:28,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:11:28,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:11:28,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:11:28,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:11:28,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:11:28,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:11:28,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:11:28,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:11:28,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:11:28,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:11:28,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:11:28,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:11:28,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:11:28,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:11:28,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:11:28,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:11:28,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:11:28,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:11:28,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:11:28,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:11:28,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:11:28,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:11:28,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:11:28,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:11:28,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:11:28,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:11:28,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:11:28,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:11:28,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:11:28,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:11:28,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:11:28,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:11:28,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:11:28,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:11:28,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-10-17 10:11:29,006 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:11:29,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:11:29,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:11:29,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:11:29,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:11:29,009 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:11:29,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:11:29,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:11:29,011 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:11:29,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:11:29,012 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:11:29,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:11:29,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:11:29,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:11:29,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:11:29,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:11:29,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:11:29,014 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 10:11:29,014 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 10:11:29,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:11:29,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:11:29,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:11:29,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:11:29,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:11:29,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:11:29,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:11:29,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:11:29,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:11:29,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:11:29,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:11:29,017 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 10:11:29,017 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 10:11:29,017 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:11:29,018 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:11:29,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:11:29,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 10:11:29,018 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_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0ade1ef6f39670f85f34fd118229c96ac1c225bb515b821a13b4050f3a28ad6 [2022-10-17 10:11:29,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:11:29,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:11:29,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:11:29,471 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:11:29,472 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:11:29,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2022-10-17 10:11:29,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data/6f7323cb7/4a85d6ba5a59454c8447a2c4d5fd6059/FLAG6e7d3ac08 [2022-10-17 10:11:30,173 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:11:30,174 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2022-10-17 10:11:30,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data/6f7323cb7/4a85d6ba5a59454c8447a2c4d5fd6059/FLAG6e7d3ac08 [2022-10-17 10:11:30,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/data/6f7323cb7/4a85d6ba5a59454c8447a2c4d5fd6059 [2022-10-17 10:11:30,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:11:30,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:11:30,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:11:30,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:11:30,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:11:30,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:11:30" (1/1) ... [2022-10-17 10:11:30,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb39fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:30, skipping insertion in model container [2022-10-17 10:11:30,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:11:30" (1/1) ... [2022-10-17 10:11:30,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:11:30,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:11:30,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2022-10-17 10:11:30,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:11:30,926 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:11:30,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2022-10-17 10:11:30,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:11:31,006 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:11:31,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31 WrapperNode [2022-10-17 10:11:31,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:11:31,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:11:31,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:11:31,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:11:31,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,074 INFO L138 Inliner]: procedures = 23, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 249 [2022-10-17 10:11:31,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:11:31,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:11:31,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:11:31,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:11:31,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,128 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:11:31,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:11:31,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:11:31,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:11:31,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (1/1) ... [2022-10-17 10:11:31,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:11:31,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:11:31,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:11:31,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:11:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:11:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-10-17 10:11:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-10-17 10:11:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 10:11:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:11:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-10-17 10:11:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-10-17 10:11:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-10-17 10:11:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-10-17 10:11:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-10-17 10:11:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 10:11:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:11:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:11:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 10:11:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:11:31,399 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:11:31,402 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:11:51,364 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:11:51,374 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:11:51,377 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-10-17 10:11:51,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:11:51 BoogieIcfgContainer [2022-10-17 10:11:51,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:11:51,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:11:51,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:11:51,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:11:51,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:11:30" (1/3) ... [2022-10-17 10:11:51,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f56bd22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:11:51, skipping insertion in model container [2022-10-17 10:11:51,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:11:31" (2/3) ... [2022-10-17 10:11:51,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f56bd22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:11:51, skipping insertion in model container [2022-10-17 10:11:51,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:11:51" (3/3) ... [2022-10-17 10:11:51,393 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2022-10-17 10:11:51,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:11:51,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:11:51,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:11:51,496 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;@598f21ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:11:51,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:11:51,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 90 states have internal predecessors, (148), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:11:51,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 10:11:51,509 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:11:51,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:11:51,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:11:51,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:11:51,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1577988125, now seen corresponding path program 1 times [2022-10-17 10:11:51,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:11:51,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891755483] [2022-10-17 10:11:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:11:51,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:11:51,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:11:51,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:11:51,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 10:11:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:11:51,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 10:11:51,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:11:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:11:51,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:11:51,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:11:51,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891755483] [2022-10-17 10:11:51,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891755483] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:11:51,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:11:51,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:11:51,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98360234] [2022-10-17 10:11:51,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:11:51,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:11:51,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:11:52,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:11:52,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:11:52,030 INFO L87 Difference]: Start difference. First operand has 97 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 90 states have internal predecessors, (148), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:11:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:11:52,066 INFO L93 Difference]: Finished difference Result 192 states and 314 transitions. [2022-10-17 10:11:52,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:11:52,068 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-17 10:11:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:11:52,077 INFO L225 Difference]: With dead ends: 192 [2022-10-17 10:11:52,078 INFO L226 Difference]: Without dead ends: 94 [2022-10-17 10:11:52,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:11:52,086 INFO L413 NwaCegarLoop]: 137 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, 137 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 [2022-10-17 10:11:52,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:11:52,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-17 10:11:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-10-17 10:11:52,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 87 states have internal predecessors, (126), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:11:52,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2022-10-17 10:11:52,134 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 11 [2022-10-17 10:11:52,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:11:52,135 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2022-10-17 10:11:52,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:11:52,136 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2022-10-17 10:11:52,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 10:11:52,137 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:11:52,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:11:52,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:11:52,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:11:52,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:11:52,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:11:52,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1202416212, now seen corresponding path program 1 times [2022-10-17 10:11:52,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:11:52,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428911199] [2022-10-17 10:11:52,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:11:52,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:11:52,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:11:52,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:11:52,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 10:11:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:11:52,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-17 10:11:52,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:11:53,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2022-10-17 10:11:54,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-10-17 10:11:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:11:56,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:11:56,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:11:56,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428911199] [2022-10-17 10:11:56,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428911199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:11:56,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:11:56,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:11:56,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290247003] [2022-10-17 10:11:56,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:11:56,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:11:56,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:11:56,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:11:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:11:56,471 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2022-10-17 10:11:59,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-10-17 10:11:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:11:59,649 INFO L93 Difference]: Finished difference Result 103 states and 143 transitions. [2022-10-17 10:11:59,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:11:59,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2022-10-17 10:11:59,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:11:59,868 INFO L225 Difference]: With dead ends: 103 [2022-10-17 10:11:59,868 INFO L226 Difference]: Without dead ends: 94 [2022-10-17 10:11:59,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:11:59,870 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 2 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-17 10:11:59,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 698 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 70 Unchecked, 2.8s Time] [2022-10-17 10:11:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-17 10:11:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-10-17 10:11:59,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4367816091954022) internal successors, (125), 87 states have internal predecessors, (125), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:11:59,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 133 transitions. [2022-10-17 10:11:59,885 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 133 transitions. Word has length 13 [2022-10-17 10:11:59,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:11:59,886 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 133 transitions. [2022-10-17 10:11:59,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2022-10-17 10:11:59,886 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 133 transitions. [2022-10-17 10:11:59,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 10:11:59,887 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:11:59,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:11:59,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-10-17 10:12:00,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:12:00,112 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:12:00,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:00,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2039257012, now seen corresponding path program 1 times [2022-10-17 10:12:00,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:12:00,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495591798] [2022-10-17 10:12:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:00,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:12:00,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:12:00,115 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:12:00,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 10:12:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:00,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 10:12:00,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:12:01,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:01,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:12:01,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:12:01,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495591798] [2022-10-17 10:12:01,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495591798] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:01,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:01,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:12:01,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111828991] [2022-10-17 10:12:01,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:01,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:12:01,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:12:01,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:12:01,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:12:01,620 INFO L87 Difference]: Start difference. First operand 94 states and 133 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2022-10-17 10:12:01,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:01,868 INFO L93 Difference]: Finished difference Result 113 states and 152 transitions. [2022-10-17 10:12:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:12:01,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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 [2022-10-17 10:12:01,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:01,874 INFO L225 Difference]: With dead ends: 113 [2022-10-17 10:12:01,875 INFO L226 Difference]: Without dead ends: 103 [2022-10-17 10:12:01,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:01,877 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 69 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:01,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 322 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2022-10-17 10:12:01,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-17 10:12:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-10-17 10:12:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 87 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:12:01,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2022-10-17 10:12:01,898 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 18 [2022-10-17 10:12:01,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:01,898 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2022-10-17 10:12:01,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2022-10-17 10:12:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2022-10-17 10:12:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 10:12:01,900 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:01,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:01,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:12:02,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:12:02,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:12:02,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:02,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2096515314, now seen corresponding path program 1 times [2022-10-17 10:12:02,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:12:02,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506907509] [2022-10-17 10:12:02,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:02,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:12:02,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:12:02,110 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58ad5362-3692-4fff-ad78-d21b103e98dc/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)