./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3 --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 08add9a6524e786a6398bc07d28566d5f0a52583 ............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3 --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 08add9a6524e786a6398bc07d28566d5f0a52583 ................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:23:47,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:23:47,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:23:47,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:23:47,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:23:47,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:23:47,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:23:47,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:23:47,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:23:47,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:23:47,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:23:47,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:23:47,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:23:47,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:23:47,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:23:47,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:23:47,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:23:47,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:23:47,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:23:47,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:23:47,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:23:47,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:23:47,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:23:47,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:23:47,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:23:47,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:23:47,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:23:47,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:23:47,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:23:47,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:23:47,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:23:47,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:23:47,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:23:47,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:23:47,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:23:47,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:23:47,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:23:47,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:23:47,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:23:47,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:23:47,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:23:47,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:23:47,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:23:47,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:23:47,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:23:47,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:23:47,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:23:47,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:23:47,169 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:23:47,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:23:47,169 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:23:47,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:23:47,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:23:47,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:23:47,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:23:47,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:23:47,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:23:47,171 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:23:47,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:23:47,172 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:23:47,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:23:47,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:23:47,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:23:47,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:23:47,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:23:47,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:23:47,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:23:47,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:23:47,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:23:47,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:23:47,175 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:23:47,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:23:47,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:23:47,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:23:47,176 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_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08add9a6524e786a6398bc07d28566d5f0a52583 [2021-10-15 19:23:47,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:23:47,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:23:47,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:23:47,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:23:47,523 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:23:47,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2021-10-15 19:23:47,601 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data/6f1a6485e/776454156b524802a1db5bd95d8774a2/FLAGcd976b95e [2021-10-15 19:23:48,144 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:23:48,145 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2021-10-15 19:23:48,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data/6f1a6485e/776454156b524802a1db5bd95d8774a2/FLAGcd976b95e [2021-10-15 19:23:48,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data/6f1a6485e/776454156b524802a1db5bd95d8774a2 [2021-10-15 19:23:48,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:23:48,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:23:48,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:23:48,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:23:48,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:23:48,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b5f4de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48, skipping insertion in model container [2021-10-15 19:23:48,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:23:48,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:23:48,801 WARN L228 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_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2021-10-15 19:23:48,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:23:48,816 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:23:48,833 WARN L228 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_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2021-10-15 19:23:48,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:23:48,851 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:23:48,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48 WrapperNode [2021-10-15 19:23:48,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:23:48,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:23:48,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:23:48,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:23:48,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:23:48,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:23:48,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:23:48,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:23:48,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:23:48,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:23:48,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:23:48,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:23:48,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (1/1) ... [2021-10-15 19:23:48,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:23:48,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:23:49,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:23:49,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:23:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:23:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:23:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:23:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:23:49,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:23:49,325 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-15 19:23:49,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:23:49 BoogieIcfgContainer [2021-10-15 19:23:49,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:23:49,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:23:49,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:23:49,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:23:49,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:23:48" (1/3) ... [2021-10-15 19:23:49,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532d717b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:23:49, skipping insertion in model container [2021-10-15 19:23:49,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:48" (2/3) ... [2021-10-15 19:23:49,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532d717b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:23:49, skipping insertion in model container [2021-10-15 19:23:49,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:23:49" (3/3) ... [2021-10-15 19:23:49,339 INFO L111 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2021-10-15 19:23:49,346 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:23:49,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:23:49,403 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:23:49,412 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 19:23:49,412 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:23:49,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 8 places, 8 transitions, 16 flow [2021-10-15 19:23:49,457 INFO L129 PetriNetUnfolder]: 1/8 cut-off events. [2021-10-15 19:23:49,457 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:23:49,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9 conditions, 8 events. 1/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-15 19:23:49,460 INFO L82 GeneralOperation]: Start removeDead. Operand has 8 places, 8 transitions, 16 flow [2021-10-15 19:23:49,464 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 5 places, 4 transitions, 8 flow [2021-10-15 19:23:49,482 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-10-15 19:23:49,482 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:23:49,482 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:23:49,483 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-10-15 19:23:49,484 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:23:49,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:23:49,490 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-10-15 19:23:49,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:23:49,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790002027] [2021-10-15 19:23:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:23:49,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:23:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:23:49,646 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:23:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:23:49,691 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:23:49,694 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:23:49,695 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:23:49,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:23:49,706 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:23:49,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:23:49 BoogieIcfgContainer [2021-10-15 19:23:49,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:23:49,733 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:23:49,733 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:23:49,734 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:23:49,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:23:49" (3/4) ... [2021-10-15 19:23:49,740 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:23:49,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:23:49,748 INFO L168 Benchmark]: Toolchain (without parser) took 1219.88 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 41.2 MB in the beginning and 53.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:49,750 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:23:49,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.14 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 41.0 MB in the beginning and 78.9 MB in the end (delta: -37.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:49,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.88 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 77.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:49,755 INFO L168 Benchmark]: Boogie Preprocessor took 39.72 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 76.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:23:49,757 INFO L168 Benchmark]: RCFGBuilder took 371.64 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 67.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:49,767 INFO L168 Benchmark]: TraceAbstraction took 401.36 ms. Allocated memory is still 102.8 MB. Free memory was 67.3 MB in the beginning and 54.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:49,769 INFO L168 Benchmark]: Witness Printer took 7.49 ms. Allocated memory is still 102.8 MB. Free memory was 54.2 MB in the beginning and 53.7 MB in the end (delta: 500.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:23:49,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.14 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 41.0 MB in the beginning and 78.9 MB in the end (delta: -37.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.88 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 77.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.72 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 76.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 371.64 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 67.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 401.36 ms. Allocated memory is still 102.8 MB. Free memory was 67.3 MB in the beginning and 54.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 7.49 ms. Allocated memory is still 102.8 MB. Free memory was 54.2 MB in the beginning and 53.7 MB in the end (delta: 500.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 6. Possible FailurePath: [L6] float f = 1; [L7] int i = f; [L8] COND TRUE i == 1 [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 306.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 67.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.8ms SsaConstructionTime, 40.0ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2021-10-15 19:23:49,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:23:52,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:23:52,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:23:52,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:23:52,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:23:52,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:23:52,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:23:52,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:23:52,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:23:52,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:23:52,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:23:52,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:23:52,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:23:52,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:23:52,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:23:52,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:23:52,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:23:52,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:23:52,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:23:52,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:23:52,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:23:52,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:23:52,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:23:52,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:23:52,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:23:52,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:23:52,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:23:52,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:23:52,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:23:52,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:23:52,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:23:52,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:23:52,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:23:52,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:23:52,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:23:52,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:23:52,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:23:52,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:23:52,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:23:52,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:23:52,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:23:52,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-15 19:23:53,003 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:23:53,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:23:53,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:23:53,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:23:53,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:23:53,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:23:53,009 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:23:53,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:23:53,010 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:23:53,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:23:53,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:23:53,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:23:53,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:23:53,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:23:53,013 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-15 19:23:53,013 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-15 19:23:53,014 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:23:53,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:23:53,014 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:23:53,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:23:53,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:23:53,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:23:53,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:23:53,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:23:53,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:23:53,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:23:53,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:23:53,018 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-15 19:23:53,018 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-15 19:23:53,018 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:23:53,019 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:23:53,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:23:53,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:23:53,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-15 19:23:53,020 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_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08add9a6524e786a6398bc07d28566d5f0a52583 [2021-10-15 19:23:53,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:23:53,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:23:53,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:23:53,627 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:23:53,628 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:23:53,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2021-10-15 19:23:53,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data/80d3e3b01/7ae53ceddd3f49e9a8607f218d2a2c99/FLAG54f9680ff [2021-10-15 19:23:54,408 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:23:54,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2021-10-15 19:23:54,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data/80d3e3b01/7ae53ceddd3f49e9a8607f218d2a2c99/FLAG54f9680ff [2021-10-15 19:23:54,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/data/80d3e3b01/7ae53ceddd3f49e9a8607f218d2a2c99 [2021-10-15 19:23:54,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:23:54,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:23:54,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:23:54,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:23:54,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:23:54,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:23:54" (1/1) ... [2021-10-15 19:23:54,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f80c939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:54, skipping insertion in model container [2021-10-15 19:23:54,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:23:54" (1/1) ... [2021-10-15 19:23:54,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:23:54,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:23:54,945 WARN L228 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_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2021-10-15 19:23:54,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:23:54,974 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:23:55,002 WARN L228 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_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c[371,384] [2021-10-15 19:23:55,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:23:55,039 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:23:55,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55 WrapperNode [2021-10-15 19:23:55,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:23:55,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:23:55,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:23:55,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:23:55,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:23:55,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:23:55,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:23:55,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:23:55,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:23:55,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:23:55,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:23:55,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:23:55,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (1/1) ... [2021-10-15 19:23:55,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:23:55,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:23:55,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:23:55,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:23:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:23:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:23:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-15 19:23:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:23:55,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:23:55,484 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-15 19:23:55,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:23:55 BoogieIcfgContainer [2021-10-15 19:23:55,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:23:55,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:23:55,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:23:55,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:23:55,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:23:54" (1/3) ... [2021-10-15 19:23:55,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45257820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:23:55, skipping insertion in model container [2021-10-15 19:23:55,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:23:55" (2/3) ... [2021-10-15 19:23:55,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45257820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:23:55, skipping insertion in model container [2021-10-15 19:23:55,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:23:55" (3/3) ... [2021-10-15 19:23:55,496 INFO L111 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2021-10-15 19:23:55,503 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:23:55,503 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:23:55,564 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:23:55,573 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 19:23:55,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:23:55,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 8 places, 8 transitions, 16 flow [2021-10-15 19:23:55,640 INFO L129 PetriNetUnfolder]: 1/8 cut-off events. [2021-10-15 19:23:55,640 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:23:55,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9 conditions, 8 events. 1/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-15 19:23:55,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 8 places, 8 transitions, 16 flow [2021-10-15 19:23:55,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 5 places, 4 transitions, 8 flow [2021-10-15 19:23:55,649 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-10-15 19:23:55,650 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:23:55,650 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:23:55,651 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-10-15 19:23:55,651 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:23:55,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:23:55,671 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-10-15 19:23:55,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:23:55,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699356870] [2021-10-15 19:23:55,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:23:55,697 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:23:55,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:23:55,701 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:23:55,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-15 19:23:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:23:55,818 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:23:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:23:55,879 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-15 19:23:55,882 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:23:55,883 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:23:55,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:23:56,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:23:56,094 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:23:56,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:23:56 BoogieIcfgContainer [2021-10-15 19:23:56,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:23:56,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:23:56,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:23:56,125 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:23:56,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:23:55" (3/4) ... [2021-10-15 19:23:56,129 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-15 19:23:56,225 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:23:56,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:23:56,256 INFO L168 Benchmark]: Toolchain (without parser) took 1472.22 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 60.7 MB in the beginning and 84.6 MB in the end (delta: -23.9 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:56,257 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:23:56,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.98 ms. Allocated memory is still 77.6 MB. Free memory was 60.4 MB in the beginning and 61.5 MB in the end (delta: -1.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:56,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.23 ms. Allocated memory is still 77.6 MB. Free memory was 61.5 MB in the beginning and 60.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:23:56,262 INFO L168 Benchmark]: Boogie Preprocessor took 52.85 ms. Allocated memory is still 77.6 MB. Free memory was 60.1 MB in the beginning and 59.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:56,263 INFO L168 Benchmark]: RCFGBuilder took 343.60 ms. Allocated memory is still 77.6 MB. Free memory was 58.9 MB in the beginning and 50.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:56,264 INFO L168 Benchmark]: TraceAbstraction took 633.62 ms. Allocated memory is still 77.6 MB. Free memory was 49.7 MB in the beginning and 37.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:56,265 INFO L168 Benchmark]: Witness Printer took 101.75 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 37.6 MB in the beginning and 84.6 MB in the end (delta: -47.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:23:56,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.98 ms. Allocated memory is still 77.6 MB. Free memory was 60.4 MB in the beginning and 61.5 MB in the end (delta: -1.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.23 ms. Allocated memory is still 77.6 MB. Free memory was 61.5 MB in the beginning and 60.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.85 ms. Allocated memory is still 77.6 MB. Free memory was 60.1 MB in the beginning and 59.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 343.60 ms. Allocated memory is still 77.6 MB. Free memory was 58.9 MB in the beginning and 50.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 633.62 ms. Allocated memory is still 77.6 MB. Free memory was 49.7 MB in the beginning and 37.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 101.75 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 37.6 MB in the beginning and 84.6 MB in the end (delta: -47.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] float f = 1; [L7] int i = f; [L8] COND TRUE i == 1 [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 532.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 73.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.0ms SsaConstructionTime, 33.4ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2021-10-15 19:23:56,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5b05e-a3a6-4d6b-8f29-7e2a7d4a8cbe/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...