./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:31:22,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:31:22,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:31:22,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:31:22,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:31:22,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:31:22,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:31:22,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:31:22,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:31:22,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:31:22,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:31:22,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:31:22,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:31:22,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:31:22,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:31:22,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:31:22,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:31:22,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:31:22,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:31:22,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:31:22,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:31:22,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:31:22,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:31:22,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:31:22,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:31:22,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:31:22,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:31:22,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:31:22,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:31:22,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:31:22,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:31:22,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:31:22,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:31:22,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:31:22,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:31:22,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:31:22,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:31:22,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:31:22,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:31:22,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:31:22,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:31:22,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:31:22,170 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:31:22,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:31:22,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:31:22,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:31:22,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:31:22,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:31:22,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:31:22,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:31:22,173 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:31:22,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:31:22,173 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:31:22,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:31:22,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:31:22,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:31:22,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:31:22,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:31:22,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:31:22,175 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:31:22,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:31:22,176 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:31:22,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:31:22,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:31:22,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:31:22,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:31:22,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:31:22,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:31:22,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:31:22,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:31:22,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:31:22,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:31:22,179 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:31:22,179 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:31:22,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:31:22,179 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_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd [2022-11-18 18:31:22,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:31:22,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:31:22,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:31:22,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:31:22,551 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:31:22,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-11-18 18:31:22,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data/75cffc68e/2af9e8f38e894c7193a7c523d708b760/FLAGb747d56a4 [2022-11-18 18:31:23,160 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:31:23,160 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-11-18 18:31:23,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data/75cffc68e/2af9e8f38e894c7193a7c523d708b760/FLAGb747d56a4 [2022-11-18 18:31:23,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data/75cffc68e/2af9e8f38e894c7193a7c523d708b760 [2022-11-18 18:31:23,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:31:23,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:31:23,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:31:23,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:31:23,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:31:23,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:31:23" (1/1) ... [2022-11-18 18:31:23,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f822c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:23, skipping insertion in model container [2022-11-18 18:31:23,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:31:23" (1/1) ... [2022-11-18 18:31:23,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:31:23,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:31:23,861 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-11-18 18:31:23,869 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-11-18 18:31:23,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:31:23,980 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:31:24,009 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-11-18 18:31:24,011 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-11-18 18:31:24,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:31:24,087 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:31:24,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24 WrapperNode [2022-11-18 18:31:24,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:31:24,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:31:24,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:31:24,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:31:24,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,161 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 175 [2022-11-18 18:31:24,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:31:24,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:31:24,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:31:24,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:31:24,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,215 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:31:24,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:31:24,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:31:24,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:31:24,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (1/1) ... [2022-11-18 18:31:24,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:31:24,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:31:24,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:31:24,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:31:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:31:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-18 18:31:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-18 18:31:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:31:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:31:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:31:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 18:31:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 18:31:24,414 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:31:24,416 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:31:24,945 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:31:24,952 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:31:24,952 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:31:24,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:31:24 BoogieIcfgContainer [2022-11-18 18:31:24,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:31:24,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:31:24,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:31:24,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:31:24,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:31:23" (1/3) ... [2022-11-18 18:31:24,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b94ef88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:31:24, skipping insertion in model container [2022-11-18 18:31:24,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:24" (2/3) ... [2022-11-18 18:31:24,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b94ef88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:31:24, skipping insertion in model container [2022-11-18 18:31:24,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:31:24" (3/3) ... [2022-11-18 18:31:24,964 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_3a.c.cil.c [2022-11-18 18:31:24,985 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:31:24,985 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 18:31:25,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:31:25,092 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;@799179ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:31:25,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 18:31:25,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 70 states have (on average 1.6285714285714286) internal successors, (114), 73 states have internal predecessors, (114), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 18:31:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:31:25,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:31:25,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:31:25,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:31:25,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:31:25,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1847035396, now seen corresponding path program 1 times [2022-11-18 18:31:25,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:31:25,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560237379] [2022-11-18 18:31:25,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:31:25,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:31:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:31:25,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:31:25,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:31:25,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560237379] [2022-11-18 18:31:25,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560237379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:31:25,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:31:25,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:31:25,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907766117] [2022-11-18 18:31:25,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:31:25,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:31:25,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:31:25,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:31:25,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:31:25,418 INFO L87 Difference]: Start difference. First operand has 80 states, 70 states have (on average 1.6285714285714286) internal successors, (114), 73 states have internal predecessors, (114), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:31:25,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:31:25,484 INFO L93 Difference]: Finished difference Result 155 states and 245 transitions. [2022-11-18 18:31:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:31:25,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-18 18:31:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:31:25,507 INFO L225 Difference]: With dead ends: 155 [2022-11-18 18:31:25,507 INFO L226 Difference]: Without dead ends: 71 [2022-11-18 18:31:25,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:31:25,517 INFO L413 NwaCegarLoop]: 115 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, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:31:25,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:31:25,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-18 18:31:25,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-18 18:31:25,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 63 states have (on average 1.507936507936508) internal successors, (95), 64 states have internal predecessors, (95), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 18:31:25,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2022-11-18 18:31:25,587 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 7 [2022-11-18 18:31:25,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:31:25,588 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2022-11-18 18:31:25,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:31:25,588 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2022-11-18 18:31:25,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:31:25,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:31:25,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:31:25,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:31:25,590 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:31:25,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:31:25,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1846975814, now seen corresponding path program 1 times [2022-11-18 18:31:25,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:31:25,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928395439] [2022-11-18 18:31:25,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:31:25,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:31:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:31:25,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:31:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:31:25,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:31:25,666 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:31:25,668 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-18 18:31:25,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-18 18:31:25,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:31:25,676 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 18:31:25,681 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:31:25,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:31:25 BoogieIcfgContainer [2022-11-18 18:31:25,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:31:25,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:31:25,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:31:25,720 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:31:25,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:31:24" (3/4) ... [2022-11-18 18:31:25,724 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:31:25,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:31:25,727 INFO L158 Benchmark]: Toolchain (without parser) took 2213.26ms. Allocated memory is still 138.4MB. Free memory was 106.3MB in the beginning and 103.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-11-18 18:31:25,727 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory was 45.0MB in the beginning and 45.0MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:31:25,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 571.71ms. Allocated memory is still 138.4MB. Free memory was 106.0MB in the beginning and 108.4MB in the end (delta: -2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 18:31:25,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.39ms. Allocated memory is still 138.4MB. Free memory was 108.4MB in the beginning and 106.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:31:25,738 INFO L158 Benchmark]: Boogie Preprocessor took 64.95ms. Allocated memory is still 138.4MB. Free memory was 106.3MB in the beginning and 104.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:31:25,738 INFO L158 Benchmark]: RCFGBuilder took 724.95ms. Allocated memory is still 138.4MB. Free memory was 104.2MB in the beginning and 84.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-18 18:31:25,739 INFO L158 Benchmark]: TraceAbstraction took 760.42ms. Allocated memory is still 138.4MB. Free memory was 83.6MB in the beginning and 103.2MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:31:25,739 INFO L158 Benchmark]: Witness Printer took 5.80ms. Allocated memory is still 138.4MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:31:25,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory was 45.0MB in the beginning and 45.0MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 571.71ms. Allocated memory is still 138.4MB. Free memory was 106.0MB in the beginning and 108.4MB in the end (delta: -2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.39ms. Allocated memory is still 138.4MB. Free memory was 108.4MB in the beginning and 106.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.95ms. Allocated memory is still 138.4MB. Free memory was 106.3MB in the beginning and 104.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 724.95ms. Allocated memory is still 138.4MB. Free memory was 104.2MB in the beginning and 84.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 760.42ms. Allocated memory is still 138.4MB. Free memory was 83.6MB in the beginning and 103.2MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.80ms. Allocated memory is still 138.4MB. Free memory is still 103.2MB. 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: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 80 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 115 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, 115 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=80occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2022-11-18 18:31:25,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:31:28,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:31:28,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:31:28,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:31:28,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:31:28,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:31:28,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:31:28,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:31:28,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:31:28,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:31:28,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:31:28,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:31:28,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:31:28,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:31:28,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:31:28,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:31:28,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:31:28,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:31:28,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:31:28,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:31:28,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:31:28,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:31:28,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:31:28,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:31:28,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:31:28,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:31:28,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:31:28,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:31:28,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:31:28,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:31:28,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:31:28,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:31:28,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:31:28,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:31:28,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:31:28,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:31:28,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:31:28,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:31:28,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:31:28,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:31:28,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:31:28,242 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 18:31:28,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:31:28,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:31:28,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:31:28,283 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:31:28,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:31:28,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:31:28,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:31:28,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:31:28,287 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:31:28,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:31:28,288 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:31:28,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:31:28,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:31:28,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:31:28,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:31:28,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:31:28,290 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:31:28,290 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:31:28,290 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:31:28,290 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:31:28,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:31:28,291 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:31:28,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:31:28,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:31:28,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:31:28,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:31:28,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:31:28,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:31:28,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:31:28,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:31:28,293 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:31:28,293 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:31:28,294 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:31:28,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:31:28,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:31:28,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:31:28,295 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_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31369bad6f1c83c546d17a52fbf2014a6a82af248db1b4a737df8b889fc9cfdd [2022-11-18 18:31:28,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:31:28,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:31:28,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:31:28,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:31:28,742 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:31:28,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-11-18 18:31:28,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data/ee0776b78/f339ef330ad743faa49ba415ef44575f/FLAG6123aa2a4 [2022-11-18 18:31:29,405 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:31:29,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c [2022-11-18 18:31:29,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data/ee0776b78/f339ef330ad743faa49ba415ef44575f/FLAG6123aa2a4 [2022-11-18 18:31:29,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/data/ee0776b78/f339ef330ad743faa49ba415ef44575f [2022-11-18 18:31:29,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:31:29,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:31:29,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:31:29,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:31:29,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:31:29,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:31:29" (1/1) ... [2022-11-18 18:31:29,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1e8c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:29, skipping insertion in model container [2022-11-18 18:31:29,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:31:29" (1/1) ... [2022-11-18 18:31:29,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:31:29,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:31:29,941 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-11-18 18:31:29,948 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-11-18 18:31:29,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:31:30,035 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:31:30,073 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-11-18 18:31:30,075 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/sv-benchmarks/c/combinations/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-11-18 18:31:30,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:31:30,116 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:31:30,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30 WrapperNode [2022-11-18 18:31:30,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:31:30,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:31:30,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:31:30,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:31:30,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,162 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-18 18:31:30,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:31:30,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:31:30,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:31:30,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:31:30,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,195 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:31:30,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:31:30,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:31:30,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:31:30,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (1/1) ... [2022-11-18 18:31:30,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:31:30,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:31:30,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:31:30,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:31:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:31:30,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 18:31:30,310 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-18 18:31:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-18 18:31:30,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:31:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:31:30,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 18:31:30,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 18:31:30,448 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:31:30,450 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:31:33,065 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:31:33,089 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:31:33,089 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:31:33,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:31:33 BoogieIcfgContainer [2022-11-18 18:31:33,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:31:33,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:31:33,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:31:33,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:31:33,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:31:29" (1/3) ... [2022-11-18 18:31:33,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d697ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:31:33, skipping insertion in model container [2022-11-18 18:31:33,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:30" (2/3) ... [2022-11-18 18:31:33,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d697ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:31:33, skipping insertion in model container [2022-11-18 18:31:33,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:31:33" (3/3) ... [2022-11-18 18:31:33,113 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_3a.c.cil.c [2022-11-18 18:31:33,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:31:33,137 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 18:31:33,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:31:33,284 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;@76b38bb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:31:33,284 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 18:31:33,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 18:31:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:31:33,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:31:33,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:31:33,299 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:31:33,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:31:33,304 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-18 18:31:33,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:31:33,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255083871] [2022-11-18 18:31:33,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:31:33,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:31:33,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:31:33,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:31:33,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 18:31:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:31:33,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 18:31:33,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:31:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:31:33,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:31:33,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:31:33,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255083871] [2022-11-18 18:31:33,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255083871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:31:33,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:31:33,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:31:33,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023278956] [2022-11-18 18:31:33,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:31:33,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:31:33,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:31:34,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:31:34,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:31:34,013 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:31:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:31:34,072 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-11-18 18:31:34,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:31:34,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-18 18:31:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:31:34,087 INFO L225 Difference]: With dead ends: 115 [2022-11-18 18:31:34,087 INFO L226 Difference]: Without dead ends: 51 [2022-11-18 18:31:34,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:31:34,097 INFO L413 NwaCegarLoop]: 81 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, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:31:34,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:31:34,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-18 18:31:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-18 18:31:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-18 18:31:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-18 18:31:34,170 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-11-18 18:31:34,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:31:34,171 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-18 18:31:34,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:31:34,172 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-11-18 18:31:34,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:31:34,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:31:34,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:31:34,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:31:34,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:31:34,387 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:31:34,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:31:34,388 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-18 18:31:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:31:34,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254212777] [2022-11-18 18:31:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:31:34,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:31:34,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:31:34,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 18:31:34,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 18:42:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:21,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:06,697 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 18:43:06,698 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 18:43:06,700 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-18 18:43:06,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-18 18:43:06,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:43:06,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 18:43:06,925 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 18:43:06,932 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:43:06,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:43:06 BoogieIcfgContainer [2022-11-18 18:43:06,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:43:06,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:43:06,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:43:06,963 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:43:06,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:31:33" (3/4) ... [2022-11-18 18:43:06,967 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 18:43:07,007 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:43:07,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:43:07,008 INFO L158 Benchmark]: Toolchain (without parser) took 697287.89ms. Allocated memory is still 75.5MB. Free memory was 58.0MB in the beginning and 32.7MB in the end (delta: 25.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-11-18 18:43:07,009 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 75.5MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:43:07,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.27ms. Allocated memory is still 75.5MB. Free memory was 57.9MB in the beginning and 56.7MB in the end (delta: 1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 18:43:07,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.60ms. Allocated memory is still 75.5MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:43:07,010 INFO L158 Benchmark]: Boogie Preprocessor took 37.67ms. Allocated memory is still 75.5MB. Free memory was 54.6MB in the beginning and 52.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:43:07,011 INFO L158 Benchmark]: RCFGBuilder took 2890.00ms. Allocated memory is still 75.5MB. Free memory was 52.7MB in the beginning and 36.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 18:43:07,011 INFO L158 Benchmark]: TraceAbstraction took 693866.03ms. Allocated memory is still 75.5MB. Free memory was 35.4MB in the beginning and 34.4MB in the end (delta: 985.1kB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-11-18 18:43:07,012 INFO L158 Benchmark]: Witness Printer took 46.47ms. Allocated memory is still 75.5MB. Free memory was 34.4MB in the beginning and 32.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:43:07,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 75.5MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.27ms. Allocated memory is still 75.5MB. Free memory was 57.9MB in the beginning and 56.7MB in the end (delta: 1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.60ms. Allocated memory is still 75.5MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.67ms. Allocated memory is still 75.5MB. Free memory was 54.6MB in the beginning and 52.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2890.00ms. Allocated memory is still 75.5MB. Free memory was 52.7MB in the beginning and 36.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 693866.03ms. Allocated memory is still 75.5MB. Free memory was 35.4MB in the beginning and 34.4MB in the end (delta: 985.1kB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Witness Printer took 46.47ms. Allocated memory is still 75.5MB. Free memory was 34.4MB in the beginning and 32.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] [L48] reach_error() VAL [IN=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 693.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 81 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, 81 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 647.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 18:43:07,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8295cdf1-d039-4989-93c9-20b89f5df439/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE