./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd5f0f5c445530fc66d295fb5f09c0eb7d918c0584248d18911478208fdeb537 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:24:52,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:24:52,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:24:53,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:24:53,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:24:53,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:24:53,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:24:53,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:24:53,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:24:53,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:24:53,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:24:53,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:24:53,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:24:53,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:24:53,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:24:53,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:24:53,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:24:53,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:24:53,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:24:53,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:24:53,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:24:53,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:24:53,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:24:53,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:24:53,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:24:53,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:24:53,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:24:53,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:24:53,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:24:53,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:24:53,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:24:53,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:24:53,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:24:53,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:24:53,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:24:53,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:24:53,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:24:53,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:24:53,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:24:53,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:24:53,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:24:53,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:24:53,138 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:24:53,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:24:53,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:24:53,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:24:53,140 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:24:53,140 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:24:53,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:24:53,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:24:53,141 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:24:53,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:24:53,141 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:24:53,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:24:53,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:24:53,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:24:53,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:24:53,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:24:53,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:24:53,143 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:24:53,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:24:53,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:24:53,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:24:53,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:24:53,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:24:53,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:24:53,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:53,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:24:53,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:24:53,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:24:53,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:24:53,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:24:53,146 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:24:53,146 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:24:53,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:24:53,146 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_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd5f0f5c445530fc66d295fb5f09c0eb7d918c0584248d18911478208fdeb537 [2022-11-16 11:24:53,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:24:53,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:24:53,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:24:53,482 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:24:53,483 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:24:53,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-newlib/float_req_bl_1032c.c [2022-11-16 11:24:53,573 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data/9d1c87aab/f36247c071f745849d9f9abba5ce73a9/FLAG257bea119 [2022-11-16 11:24:54,119 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:24:54,120 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/sv-benchmarks/c/float-newlib/float_req_bl_1032c.c [2022-11-16 11:24:54,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data/9d1c87aab/f36247c071f745849d9f9abba5ce73a9/FLAG257bea119 [2022-11-16 11:24:54,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data/9d1c87aab/f36247c071f745849d9f9abba5ce73a9 [2022-11-16 11:24:54,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:24:54,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:24:54,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:54,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:24:54,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:24:54,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a5d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54, skipping insertion in model container [2022-11-16 11:24:54,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:24:54,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:24:54,743 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/sv-benchmarks/c/float-newlib/float_req_bl_1032c.c[1743,1756] [2022-11-16 11:24:54,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:54,754 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:24:54,777 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/sv-benchmarks/c/float-newlib/float_req_bl_1032c.c[1743,1756] [2022-11-16 11:24:54,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:54,791 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:24:54,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54 WrapperNode [2022-11-16 11:24:54,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:54,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:54,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:24:54,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:24:54,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,837 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2022-11-16 11:24:54,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:54,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:24:54,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:24:54,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:24:54,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,862 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:24:54,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:24:54,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:24:54,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:24:54,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:54,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:54,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:54,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:24:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:24:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:24:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:24:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 11:24:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:24:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-16 11:24:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:24:54,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:24:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:24:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:24:55,081 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:24:55,083 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:24:55,429 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:24:55,434 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:24:55,435 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:24:55,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:55 BoogieIcfgContainer [2022-11-16 11:24:55,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:24:55,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:24:55,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:24:55,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:24:55,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:24:54" (1/3) ... [2022-11-16 11:24:55,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e76eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:24:55, skipping insertion in model container [2022-11-16 11:24:55,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (2/3) ... [2022-11-16 11:24:55,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e76eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:24:55, skipping insertion in model container [2022-11-16 11:24:55,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:55" (3/3) ... [2022-11-16 11:24:55,451 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c.c [2022-11-16 11:24:55,467 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:24:55,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:24:55,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:24:55,516 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;@419efe23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:24:55,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:24:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:55,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 11:24:55,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:55,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:55,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:24:55,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:55,535 INFO L85 PathProgramCache]: Analyzing trace with hash -592327338, now seen corresponding path program 1 times [2022-11-16 11:24:55,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:55,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115181509] [2022-11-16 11:24:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:55,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:55,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:55,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:55,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115181509] [2022-11-16 11:24:55,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115181509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:55,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:55,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:24:55,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899663389] [2022-11-16 11:24:55,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:55,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:24:55,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:55,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:24:55,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:24:55,740 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:55,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:24:55,757 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions. [2022-11-16 11:24:55,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:24:55,759 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-16 11:24:55,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:24:55,768 INFO L225 Difference]: With dead ends: 46 [2022-11-16 11:24:55,769 INFO L226 Difference]: Without dead ends: 21 [2022-11-16 11:24:55,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:24:55,775 INFO L413 NwaCegarLoop]: 28 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, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:24:55,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:24:55,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-16 11:24:55,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-16 11:24:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:55,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-16 11:24:55,809 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2022-11-16 11:24:55,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:24:55,810 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-16 11:24:55,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:55,811 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-16 11:24:55,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:24:55,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:24:55,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:55,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:24:55,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:24:55,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:55,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1651159701, now seen corresponding path program 1 times [2022-11-16 11:24:55,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:55,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153263121] [2022-11-16 11:24:55,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:55,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:55,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:24:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:56,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:24:56,036 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:24:56,037 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:24:56,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:24:56,043 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 11:24:56,047 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:24:56,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:24:56 BoogieIcfgContainer [2022-11-16 11:24:56,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:24:56,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:24:56,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:24:56,089 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:24:56,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:55" (3/4) ... [2022-11-16 11:24:56,094 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:24:56,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:24:56,096 INFO L158 Benchmark]: Toolchain (without parser) took 1608.54ms. Allocated memory is still 151.0MB. Free memory was 114.7MB in the beginning and 75.8MB in the end (delta: 38.9MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,096 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory was 123.3MB in the beginning and 123.3MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:24:56,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.90ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 124.8MB in the end (delta: -10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.42ms. Allocated memory is still 151.0MB. Free memory was 124.8MB in the beginning and 123.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:24:56,103 INFO L158 Benchmark]: Boogie Preprocessor took 27.68ms. Allocated memory is still 151.0MB. Free memory was 123.1MB in the beginning and 121.5MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,107 INFO L158 Benchmark]: RCFGBuilder took 570.27ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 108.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,107 INFO L158 Benchmark]: TraceAbstraction took 646.97ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 76.2MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-16 11:24:56,108 INFO L158 Benchmark]: Witness Printer took 6.76ms. Allocated memory is still 151.0MB. Free memory was 76.2MB in the beginning and 75.8MB in the end (delta: 399.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:24:56,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory was 123.3MB in the beginning and 123.3MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.90ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 124.8MB in the end (delta: -10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.42ms. Allocated memory is still 151.0MB. Free memory was 124.8MB in the beginning and 123.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.68ms. Allocated memory is still 151.0MB. Free memory was 123.1MB in the beginning and 121.5MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 570.27ms. Allocated memory is still 151.0MB. Free memory was 121.5MB in the beginning and 108.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 646.97ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 76.2MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 6.76ms. Allocated memory is still 151.0MB. Free memory was 76.2MB in the beginning and 75.8MB in the end (delta: 399.7kB). 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: 81]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L76] float x = 1.0f / 0.0f; [L77] CALL, EXPR round_float(x) [L14] __uint32_t w; [L16] int exponent_less_127; VAL [\old(x)=4294967306, x=4294967306] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (w) = gf_u.word [L24] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=4294967306, exponent_less_127=128, w=2147483646, x=4294967306] [L26] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=4294967306, exponent_less_127=128, w=2147483646, x=4294967306] [L42] COND TRUE exponent_less_127 == 128 [L44] return x + x; VAL [\old(x)=4294967306, exponent_less_127=128, w=2147483646, x=4294967306] [L77] RET, EXPR round_float(x) [L77] float res = round_float(x); [L80] CALL, EXPR isinf_float(res) [L58] __int32_t ix; VAL [\old(x)=4294967307, x=4294967307] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (ix) = gf_u.word [L64] ix &= 0x7fffffff [L65] return ((ix) == 0x7f800000L); VAL [\old(x)=4294967307, \result=0, ix=0, x=4294967307] [L80] RET, EXPR isinf_float(res) [L80] COND TRUE !isinf_float(res) [L81] reach_error() VAL [res=4294967307, x=4294967306] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 28 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, 28 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=24occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:24:56,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd5f0f5c445530fc66d295fb5f09c0eb7d918c0584248d18911478208fdeb537 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:24:58,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:24:58,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:24:58,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:24:58,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:24:58,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:24:58,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:24:58,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:24:58,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:24:58,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:24:58,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:24:58,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:24:58,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:24:58,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:24:58,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:24:58,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:24:58,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:24:58,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:24:58,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:24:58,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:24:58,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:24:58,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:24:58,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:24:58,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:24:58,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:24:58,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:24:58,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:24:58,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:24:58,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:24:58,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:24:58,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:24:58,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:24:58,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:24:58,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:24:58,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:24:58,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:24:58,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:24:58,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:24:58,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:24:58,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:24:58,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:24:58,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-16 11:24:58,704 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:24:58,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:24:58,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:24:58,704 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:24:58,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:24:58,705 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:24:58,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:24:58,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:24:58,706 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:24:58,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:24:58,707 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:24:58,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:24:58,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:24:58,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:24:58,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:24:58,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:24:58,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:24:58,708 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:24:58,708 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:24:58,708 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:24:58,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:24:58,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:24:58,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:24:58,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:24:58,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:24:58,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:24:58,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:58,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:24:58,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:24:58,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:24:58,713 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:24:58,713 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:24:58,713 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:24:58,714 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:24:58,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:24:58,714 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:24:58,715 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_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd5f0f5c445530fc66d295fb5f09c0eb7d918c0584248d18911478208fdeb537 [2022-11-16 11:24:59,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:24:59,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:24:59,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:24:59,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:24:59,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:24:59,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-newlib/float_req_bl_1032c.c [2022-11-16 11:24:59,220 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data/2f4ce2f46/c7fa4846dca94614a5fb9544aed54bea/FLAGdc5b4e5ba [2022-11-16 11:24:59,802 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:24:59,803 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/sv-benchmarks/c/float-newlib/float_req_bl_1032c.c [2022-11-16 11:24:59,810 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data/2f4ce2f46/c7fa4846dca94614a5fb9544aed54bea/FLAGdc5b4e5ba [2022-11-16 11:25:00,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/data/2f4ce2f46/c7fa4846dca94614a5fb9544aed54bea [2022-11-16 11:25:00,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:25:00,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:25:00,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:25:00,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:25:00,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:25:00,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26cdda43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00, skipping insertion in model container [2022-11-16 11:25:00,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:25:00,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:25:00,347 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/sv-benchmarks/c/float-newlib/float_req_bl_1032c.c[1743,1756] [2022-11-16 11:25:00,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:25:00,361 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:25:00,429 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/sv-benchmarks/c/float-newlib/float_req_bl_1032c.c[1743,1756] [2022-11-16 11:25:00,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:25:00,446 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:25:00,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00 WrapperNode [2022-11-16 11:25:00,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:25:00,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:25:00,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:25:00,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:25:00,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,511 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2022-11-16 11:25:00,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:25:00,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:25:00,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:25:00,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:25:00,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:25:00,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:25:00,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:25:00,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:25:00,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (1/1) ... [2022-11-16 11:25:00,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:25:00,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:25:00,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:25:00,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:25:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:25:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 11:25:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:25:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-16 11:25:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 11:25:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:25:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:25:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-16 11:25:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 11:25:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:25:00,791 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:25:00,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:25:01,117 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:25:01,122 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:25:01,123 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:25:01,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:01 BoogieIcfgContainer [2022-11-16 11:25:01,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:25:01,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:25:01,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:25:01,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:25:01,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:25:00" (1/3) ... [2022-11-16 11:25:01,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63882cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:01, skipping insertion in model container [2022-11-16 11:25:01,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:00" (2/3) ... [2022-11-16 11:25:01,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63882cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:01, skipping insertion in model container [2022-11-16 11:25:01,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:01" (3/3) ... [2022-11-16 11:25:01,156 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c.c [2022-11-16 11:25:01,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:25:01,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:25:01,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:25:01,267 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;@7a831b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:25:01,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:25:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 11:25:01,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:01,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:01,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:25:01,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:01,289 INFO L85 PathProgramCache]: Analyzing trace with hash -592327338, now seen corresponding path program 1 times [2022-11-16 11:25:01,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:25:01,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068932864] [2022-11-16 11:25:01,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:01,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:25:01,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:25:01,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:25:01,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 11:25:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:01,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 11:25:01,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:25:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:01,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:25:01,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:25:01,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068932864] [2022-11-16 11:25:01,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068932864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:01,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:01,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:25:01,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024351816] [2022-11-16 11:25:01,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:01,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:25:01,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:25:01,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:25:01,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:25:01,517 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:01,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:01,535 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions. [2022-11-16 11:25:01,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:25:01,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-16 11:25:01,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:01,547 INFO L225 Difference]: With dead ends: 46 [2022-11-16 11:25:01,547 INFO L226 Difference]: Without dead ends: 21 [2022-11-16 11:25:01,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:25:01,554 INFO L413 NwaCegarLoop]: 28 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, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:01,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:25:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-16 11:25:01,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-16 11:25:01,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-16 11:25:01,589 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2022-11-16 11:25:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:01,590 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-16 11:25:01,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:01,595 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-16 11:25:01,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:25:01,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:01,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:01,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:25:01,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:25:01,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:25:01,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:01,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1651159701, now seen corresponding path program 1 times [2022-11-16 11:25:01,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:25:01,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767375272] [2022-11-16 11:25:01,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:01,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:25:01,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:25:01,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:25:01,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 11:25:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:01,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:25:01,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:25:02,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:02,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:25:02,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:25:02,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767375272] [2022-11-16 11:25:02,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767375272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:02,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:02,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:25:02,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633695771] [2022-11-16 11:25:02,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:02,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:02,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:25:02,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:02,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:02,333 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:02,651 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-16 11:25:02,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:25:02,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 14 [2022-11-16 11:25:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:02,652 INFO L225 Difference]: With dead ends: 29 [2022-11-16 11:25:02,652 INFO L226 Difference]: Without dead ends: 20 [2022-11-16 11:25:02,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:25:02,654 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 54 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:02,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 108 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:02,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-16 11:25:02,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-16 11:25:02,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:02,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-16 11:25:02,659 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2022-11-16 11:25:02,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:02,660 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-16 11:25:02,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:02,660 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-16 11:25:02,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 11:25:02,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:02,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:02,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:25:02,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:25:02,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:25:02,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:02,876 INFO L85 PathProgramCache]: Analyzing trace with hash 842294842, now seen corresponding path program 1 times [2022-11-16 11:25:02,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:25:02,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207293510] [2022-11-16 11:25:02,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:02,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:25:02,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:25:02,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:25:02,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 11:25:02,977 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Exception during sending of exit command (exit): Broken pipe [2022-11-16 11:25:02,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 139 [2022-11-16 11:25:03,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:25:03,178 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-16 11:25:03,182 INFO L158 Benchmark]: Toolchain (without parser) took 3026.19ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 39.6MB in the beginning and 51.0MB in the end (delta: -11.4MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-11-16 11:25:03,183 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:25:03,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.51ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 44.0MB in the end (delta: -4.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:25:03,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.23ms. Allocated memory is still 60.8MB. Free memory was 44.0MB in the beginning and 42.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:25:03,184 INFO L158 Benchmark]: Boogie Preprocessor took 65.15ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:25:03,185 INFO L158 Benchmark]: RCFGBuilder took 545.97ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 27.8MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:25:03,185 INFO L158 Benchmark]: TraceAbstraction took 2053.36ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 27.2MB in the beginning and 51.0MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:25:03,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.51ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 44.0MB in the end (delta: -4.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.23ms. Allocated memory is still 60.8MB. Free memory was 44.0MB in the beginning and 42.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.15ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.97ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 27.8MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2053.36ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 27.2MB in the beginning and 51.0MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-16 11:25:03,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e6c87a8-ded1-4e24-b09c-5419c8efa652/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output.